- Aluminum, fltd, ICP-MS -
Lab: NWQL, PCode: 01106, MCode: PLM10
Analysis Dates: 02/08/19 through 09/30/24
Open Data Set
Boxplot Description

Water Year = 2024 plotvalue = 119% pctrecov = 119% Water Year = 2024 plotvalue = 121% pctrecov = 121% Water Year = 2024 plotvalue = 85% pctrecov = 85% Water Year = 2023 plotvalue = 112% pctrecov = 112% Water Year = 2022 plotvalue = 92% pctrecov = 92% Water Year = 2022 plotvalue = 92% pctrecov = 92% Water Year = 2022 plotvalue = 89% pctrecov = 89% Water Year = 2021 plotvalue = 109% pctrecov = 109% Water Year = 2021 plotvalue = 110% pctrecov = 110% Water Year = 2021 plotvalue = 117% pctrecov = 117% Water Year = 2021 plotvalue = 92% pctrecov = 92% Water Year = 2021 plotvalue = 92% pctrecov = 92% Water Year = 2021 plotvalue = 91% pctrecov = 91% Water Year = 2020 plotvalue = 114% pctrecov = 114% Water Year = 2020 plotvalue = 89% pctrecov = 89% Water Year = 2019 plotvalue = 70% pctrecov = 41% Water Year = 2024 First Quartile = 97% Median = 101% Third Quartile = 105% Number of Observations = 73 Water Year = 2024 First Quartile = 97% Median = 101% Third Quartile = 105% Number of Observations = 73 Water Year = 2024 First Quartile = 97% Median = 101% Third Quartile = 105% Number of Observations = 73 Water Year = 2024 First Quartile = 97% Median = 101% Third Quartile = 105% Number of Observations = 73 Water Year = 2024 First Quartile = 97% Median = 101% Third Quartile = 105% Number of Observations = 73 Water Year = 2024 First Quartile = 97% Median = 101% Third Quartile = 105% Number of Observations = 73 Water Year = 2024 First Quartile = 97% Median = 101% Third Quartile = 105% Number of Observations = 73 Water Year = 2024 First Quartile = 97% Median = 101% Third Quartile = 105% Number of Observations = 73 Water Year = 2023 First Quartile = 98% Median = 101% Third Quartile = 104% Number of Observations = 89 Water Year = 2023 First Quartile = 98% Median = 101% Third Quartile = 104% Number of Observations = 89 Water Year = 2023 First Quartile = 98% Median = 101% Third Quartile = 104% Number of Observations = 89 Water Year = 2023 First Quartile = 98% Median = 101% Third Quartile = 104% Number of Observations = 89 Water Year = 2023 First Quartile = 98% Median = 101% Third Quartile = 104% Number of Observations = 89 Water Year = 2023 First Quartile = 98% Median = 101% Third Quartile = 104% Number of Observations = 89 Water Year = 2023 First Quartile = 98% Median = 101% Third Quartile = 104% Number of Observations = 89 Water Year = 2023 First Quartile = 98% Median = 101% Third Quartile = 104% Number of Observations = 89 Water Year = 2022 First Quartile = 100% Median = 102% Third Quartile = 105% Number of Observations = 89 Water Year = 2022 First Quartile = 100% Median = 102% Third Quartile = 105% Number of Observations = 89 Water Year = 2022 First Quartile = 100% Median = 102% Third Quartile = 105% Number of Observations = 89 Water Year = 2022 First Quartile = 100% Median = 102% Third Quartile = 105% Number of Observations = 89 Water Year = 2022 First Quartile = 100% Median = 102% Third Quartile = 105% Number of Observations = 89 Water Year = 2022 First Quartile = 100% Median = 102% Third Quartile = 105% Number of Observations = 89 Water Year = 2022 First Quartile = 100% Median = 102% Third Quartile = 105% Number of Observations = 89 Water Year = 2022 First Quartile = 100% Median = 102% Third Quartile = 105% Number of Observations = 89 Water Year = 2021 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 90 Water Year = 2021 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 90 Water Year = 2021 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 90 Water Year = 2021 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 90 Water Year = 2021 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 90 Water Year = 2021 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 90 Water Year = 2021 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 90 Water Year = 2021 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 90 Water Year = 2020 First Quartile = 98% Median = 101% Third Quartile = 104% Number of Observations = 86 Water Year = 2020 First Quartile = 98% Median = 101% Third Quartile = 104% Number of Observations = 86 Water Year = 2020 First Quartile = 98% Median = 101% Third Quartile = 104% Number of Observations = 86 Water Year = 2020 First Quartile = 98% Median = 101% Third Quartile = 104% Number of Observations = 86 Water Year = 2020 First Quartile = 98% Median = 101% Third Quartile = 104% Number of Observations = 86 Water Year = 2020 First Quartile = 98% Median = 101% Third Quartile = 104% Number of Observations = 86 Water Year = 2020 First Quartile = 98% Median = 101% Third Quartile = 104% Number of Observations = 86 Water Year = 2020 First Quartile = 98% Median = 101% Third Quartile = 104% Number of Observations = 86 Water Year = 2019 First Quartile = 96% Median = 100% Third Quartile = 106% Number of Observations = 61 Water Year = 2019 First Quartile = 96% Median = 100% Third Quartile = 106% Number of Observations = 61 Water Year = 2019 First Quartile = 96% Median = 100% Third Quartile = 106% Number of Observations = 61 Water Year = 2019 First Quartile = 96% Median = 100% Third Quartile = 106% Number of Observations = 61 Water Year = 2019 First Quartile = 96% Median = 100% Third Quartile = 106% Number of Observations = 61 Water Year = 2019 First Quartile = 96% Median = 100% Third Quartile = 106% Number of Observations = 61 Water Year = 2019 First Quartile = 96% Median = 100% Third Quartile = 106% Number of Observations = 61 Water Year = 2019 First Quartile = 96% Median = 100% Third Quartile = 106% Number of Observations = 61 Y = 1
The SGPlot Procedure

Percent Recovery Statistics for Aluminum, fltd, ICP-MS

Analyte Parm-meth Code Water Year # of
Samples		 25th Pctl 50th Pctl
(Median)		 75th Pctl
Aluminum, fltd, ICP-MS 01106PLM10 2019 61 96.0% 100.5% 105.9%
    2020 86 98.5% 101.5% 104.2%
    2021 90 98.8% 101.2% 103.0%
    2022 89 100.3% 102.4% 105.3%
    2023 89 98.4% 100.8% 104.0%
    2024 73 97.4% 101.2% 104.8%

Hover over boxplot or outliers for additional information
Chart generated 03/27/2025
Charts and data secured from this U.S. Geological Survey (USGS) web page (identified as IBSP) have not received official USGS approval and as such are provisional and subject to revision. The charts and data are released on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use.


- Aluminum, fltd, ICP-MS -
Lab: NWQL, PCode: 01106, MCode: PLM43
Analysis Dates: 10/09/09 through 01/29/19
Open Data Set
Boxplot Description

Water Year = 2019 plotvalue = 112% pctrecov = 112% Water Year = 2017 plotvalue = 84% pctrecov = 84% Water Year = 2016 plotvalue = 126% pctrecov = 126% Water Year = 2016 plotvalue = 127% pctrecov = 127% Water Year = 2016 plotvalue = 128% pctrecov = 128% Water Year = 2016 plotvalue = 128% pctrecov = 128% Water Year = 2016 plotvalue = 130% pctrecov = 130% Water Year = 2016 plotvalue = 130% pctrecov = 145% Water Year = 2016 plotvalue = 130% pctrecov = 147% Water Year = 2016 plotvalue = 70% pctrecov = 59% Water Year = 2016 plotvalue = 70% pctrecov = 64% Water Year = 2016 plotvalue = 70% pctrecov = 21% Water Year = 2015 plotvalue = 130% pctrecov = 149% Water Year = 2015 plotvalue = 130% pctrecov = 183% Water Year = 2015 plotvalue = 70% pctrecov = 17% Water Year = 2015 plotvalue = 70% pctrecov = 29% Water Year = 2014 plotvalue = 121% pctrecov = 121% Water Year = 2014 plotvalue = 123% pctrecov = 123% Water Year = 2014 plotvalue = 70% pctrecov = 15% Water Year = 2014 plotvalue = 70% pctrecov = 2% Water Year = 2014 plotvalue = 70% pctrecov = 10% Water Year = 2013 plotvalue = 117% pctrecov = 117% Water Year = 2013 plotvalue = 70% pctrecov = 13% Water Year = 2012 plotvalue = 128% pctrecov = 128% Water Year = 2012 plotvalue = 130% pctrecov = 130% Water Year = 2012 plotvalue = 130% pctrecov = 130% Water Year = 2012 plotvalue = 130% pctrecov = 139% Water Year = 2012 plotvalue = 87% pctrecov = 87% Water Year = 2012 plotvalue = 70% pctrecov = 28% Water Year = 2012 plotvalue = 70% pctrecov = 33% Water Year = 2012 plotvalue = 70% pctrecov = 3% Water Year = 2011 plotvalue = 115% pctrecov = 115% Water Year = 2011 plotvalue = 90% pctrecov = 90% Water Year = 2011 plotvalue = 90% pctrecov = 90% Water Year = 2011 plotvalue = 89% pctrecov = 89% Water Year = 2011 plotvalue = 86% pctrecov = 86% Water Year = 2011 plotvalue = 86% pctrecov = 86% Water Year = 2011 plotvalue = 85% pctrecov = 85% Water Year = 2011 plotvalue = 81% pctrecov = 81% Water Year = 2011 plotvalue = 70% pctrecov = 1% Water Year = 2011 plotvalue = 70% pctrecov = 1% Water Year = 2010 plotvalue = 125% pctrecov = 125% Water Year = 2010 plotvalue = 130% pctrecov = 145% Water Year = 2010 plotvalue = 130% pctrecov = 205% Water Year = 2019 First Quartile = 97% Median = 100% Third Quartile = 102% Number of Observations = 17 Water Year = 2019 First Quartile = 97% Median = 100% Third Quartile = 102% Number of Observations = 17 Water Year = 2019 First Quartile = 97% Median = 100% Third Quartile = 102% Number of Observations = 17 Water Year = 2019 First Quartile = 97% Median = 100% Third Quartile = 102% Number of Observations = 17 Water Year = 2019 First Quartile = 97% Median = 100% Third Quartile = 102% Number of Observations = 17 Water Year = 2019 First Quartile = 97% Median = 100% Third Quartile = 102% Number of Observations = 17 Water Year = 2019 First Quartile = 97% Median = 100% Third Quartile = 102% Number of Observations = 17 Water Year = 2019 First Quartile = 97% Median = 100% Third Quartile = 102% Number of Observations = 17 Water Year = 2017 First Quartile = 100% Median = 106% Third Quartile = 111% Number of Observations = 90 Water Year = 2017 First Quartile = 100% Median = 106% Third Quartile = 111% Number of Observations = 90 Water Year = 2017 First Quartile = 100% Median = 106% Third Quartile = 111% Number of Observations = 90 Water Year = 2017 First Quartile = 100% Median = 106% Third Quartile = 111% Number of Observations = 90 Water Year = 2017 First Quartile = 100% Median = 106% Third Quartile = 111% Number of Observations = 90 Water Year = 2017 First Quartile = 100% Median = 106% Third Quartile = 111% Number of Observations = 90 Water Year = 2017 First Quartile = 100% Median = 106% Third Quartile = 111% Number of Observations = 90 Water Year = 2017 First Quartile = 100% Median = 106% Third Quartile = 111% Number of Observations = 90 Water Year = 2016 First Quartile = 102% Median = 106% Third Quartile = 111% Number of Observations = 90 Water Year = 2016 First Quartile = 102% Median = 106% Third Quartile = 111% Number of Observations = 90 Water Year = 2016 First Quartile = 102% Median = 106% Third Quartile = 111% Number of Observations = 90 Water Year = 2016 First Quartile = 102% Median = 106% Third Quartile = 111% Number of Observations = 90 Water Year = 2016 First Quartile = 102% Median = 106% Third Quartile = 111% Number of Observations = 90 Water Year = 2016 First Quartile = 102% Median = 106% Third Quartile = 111% Number of Observations = 90 Water Year = 2016 First Quartile = 102% Median = 106% Third Quartile = 111% Number of Observations = 90 Water Year = 2016 First Quartile = 102% Median = 106% Third Quartile = 111% Number of Observations = 90 Water Year = 2015 First Quartile = 97% Median = 102% Third Quartile = 107% Number of Observations = 90 Water Year = 2015 First Quartile = 97% Median = 102% Third Quartile = 107% Number of Observations = 90 Water Year = 2015 First Quartile = 97% Median = 102% Third Quartile = 107% Number of Observations = 90 Water Year = 2015 First Quartile = 97% Median = 102% Third Quartile = 107% Number of Observations = 90 Water Year = 2015 First Quartile = 97% Median = 102% Third Quartile = 107% Number of Observations = 90 Water Year = 2015 First Quartile = 97% Median = 102% Third Quartile = 107% Number of Observations = 90 Water Year = 2015 First Quartile = 97% Median = 102% Third Quartile = 107% Number of Observations = 90 Water Year = 2015 First Quartile = 97% Median = 102% Third Quartile = 107% Number of Observations = 90 Water Year = 2014 First Quartile = 99% Median = 103% Third Quartile = 107% Number of Observations = 83 Water Year = 2014 First Quartile = 99% Median = 103% Third Quartile = 107% Number of Observations = 83 Water Year = 2014 First Quartile = 99% Median = 103% Third Quartile = 107% Number of Observations = 83 Water Year = 2014 First Quartile = 99% Median = 103% Third Quartile = 107% Number of Observations = 83 Water Year = 2014 First Quartile = 99% Median = 103% Third Quartile = 107% Number of Observations = 83 Water Year = 2014 First Quartile = 99% Median = 103% Third Quartile = 107% Number of Observations = 83 Water Year = 2014 First Quartile = 99% Median = 103% Third Quartile = 107% Number of Observations = 83 Water Year = 2014 First Quartile = 99% Median = 103% Third Quartile = 107% Number of Observations = 83 Water Year = 2013 First Quartile = 101% Median = 104% Third Quartile = 108% Number of Observations = 108 Water Year = 2013 First Quartile = 101% Median = 104% Third Quartile = 108% Number of Observations = 108 Water Year = 2013 First Quartile = 101% Median = 104% Third Quartile = 108% Number of Observations = 108 Water Year = 2013 First Quartile = 101% Median = 104% Third Quartile = 108% Number of Observations = 108 Water Year = 2013 First Quartile = 101% Median = 104% Third Quartile = 108% Number of Observations = 108 Water Year = 2013 First Quartile = 101% Median = 104% Third Quartile = 108% Number of Observations = 108 Water Year = 2013 First Quartile = 101% Median = 104% Third Quartile = 108% Number of Observations = 108 Water Year = 2013 First Quartile = 101% Median = 104% Third Quartile = 108% Number of Observations = 108 Water Year = 2012 First Quartile = 100% Median = 104% Third Quartile = 109% Number of Observations = 132 Water Year = 2012 First Quartile = 100% Median = 104% Third Quartile = 109% Number of Observations = 132 Water Year = 2012 First Quartile = 100% Median = 104% Third Quartile = 109% Number of Observations = 132 Water Year = 2012 First Quartile = 100% Median = 104% Third Quartile = 109% Number of Observations = 132 Water Year = 2012 First Quartile = 100% Median = 104% Third Quartile = 109% Number of Observations = 132 Water Year = 2012 First Quartile = 100% Median = 104% Third Quartile = 109% Number of Observations = 132 Water Year = 2012 First Quartile = 100% Median = 104% Third Quartile = 109% Number of Observations = 132 Water Year = 2012 First Quartile = 100% Median = 104% Third Quartile = 109% Number of Observations = 132 Water Year = 2011 First Quartile = 99% Median = 101% Third Quartile = 104% Number of Observations = 131 Water Year = 2011 First Quartile = 99% Median = 101% Third Quartile = 104% Number of Observations = 131 Water Year = 2011 First Quartile = 99% Median = 101% Third Quartile = 104% Number of Observations = 131 Water Year = 2011 First Quartile = 99% Median = 101% Third Quartile = 104% Number of Observations = 131 Water Year = 2011 First Quartile = 99% Median = 101% Third Quartile = 104% Number of Observations = 131 Water Year = 2011 First Quartile = 99% Median = 101% Third Quartile = 104% Number of Observations = 131 Water Year = 2011 First Quartile = 99% Median = 101% Third Quartile = 104% Number of Observations = 131 Water Year = 2011 First Quartile = 99% Median = 101% Third Quartile = 104% Number of Observations = 131 Water Year = 2010 First Quartile = 93% Median = 97% Third Quartile = 105% Number of Observations = 132 Water Year = 2010 First Quartile = 93% Median = 97% Third Quartile = 105% Number of Observations = 132 Water Year = 2010 First Quartile = 93% Median = 97% Third Quartile = 105% Number of Observations = 132 Water Year = 2010 First Quartile = 93% Median = 97% Third Quartile = 105% Number of Observations = 132 Water Year = 2010 First Quartile = 93% Median = 97% Third Quartile = 105% Number of Observations = 132 Water Year = 2010 First Quartile = 93% Median = 97% Third Quartile = 105% Number of Observations = 132 Water Year = 2010 First Quartile = 93% Median = 97% Third Quartile = 105% Number of Observations = 132 Water Year = 2010 First Quartile = 93% Median = 97% Third Quartile = 105% Number of Observations = 132 Y = 1
The SGPlot Procedure

Percent Recovery Statistics for Aluminum, fltd, ICP-MS

Analyte Parm-meth Code Water Year # of
Samples		 25th Pctl 50th Pctl
(Median)		 75th Pctl
Aluminum, fltd, ICP-MS 01106PLM43 2010 132 92.7% 96.9% 104.7%
    2011 131 98.5% 101.2% 104.1%
    2012 132 100.5% 103.9% 108.7%
    2013 108 101.3% 104.3% 107.7%
    2014 83 99.2% 102.9% 107.5%
    2015 90 96.5% 101.9% 107.1%
    2016 90 101.9% 105.6% 111.0%
    2017 90 100.3% 105.6% 111.0%
    2019 17 96.8% 99.9% 102.1%

Hover over boxplot or outliers for additional information
Chart generated 03/27/2025
Charts and data secured from this U.S. Geological Survey (USGS) web page (identified as IBSP) have not received official USGS approval and as such are provisional and subject to revision. The charts and data are released on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use.


- Aluminum, unfltd, ICP-MS, recov -
Lab: NWQL, PCode: 01105, MCode: PLM48
Analysis Dates: 10/06/09 through 04/30/15
Open Data Set
Boxplot Description

Water Year = 2015 plotvalue = 130% pctrecov = 153% Water Year = 2015 plotvalue = 83% pctrecov = 83% Water Year = 2013 plotvalue = 125% pctrecov = 125% Water Year = 2013 plotvalue = 130% pctrecov = 147% Water Year = 2013 plotvalue = 85% pctrecov = 85% Water Year = 2012 plotvalue = 117% pctrecov = 117% Water Year = 2012 plotvalue = 88% pctrecov = 88% Water Year = 2011 plotvalue = 89% pctrecov = 89% Water Year = 2011 plotvalue = 87% pctrecov = 87% Water Year = 2010 plotvalue = 116% pctrecov = 116% Water Year = 2010 plotvalue = 130% pctrecov = 455% Water Year = 2015 First Quartile = 98% Median = 102% Third Quartile = 106% Number of Observations = 27 Water Year = 2015 First Quartile = 98% Median = 102% Third Quartile = 106% Number of Observations = 27 Water Year = 2015 First Quartile = 98% Median = 102% Third Quartile = 106% Number of Observations = 27 Water Year = 2015 First Quartile = 98% Median = 102% Third Quartile = 106% Number of Observations = 27 Water Year = 2015 First Quartile = 98% Median = 102% Third Quartile = 106% Number of Observations = 27 Water Year = 2015 First Quartile = 98% Median = 102% Third Quartile = 106% Number of Observations = 27 Water Year = 2015 First Quartile = 98% Median = 102% Third Quartile = 106% Number of Observations = 27 Water Year = 2015 First Quartile = 98% Median = 102% Third Quartile = 106% Number of Observations = 27 Water Year = 2014 First Quartile = 99% Median = 104% Third Quartile = 110% Number of Observations = 45 Water Year = 2014 First Quartile = 99% Median = 104% Third Quartile = 110% Number of Observations = 45 Water Year = 2014 First Quartile = 99% Median = 104% Third Quartile = 110% Number of Observations = 45 Water Year = 2014 First Quartile = 99% Median = 104% Third Quartile = 110% Number of Observations = 45 Water Year = 2014 First Quartile = 99% Median = 104% Third Quartile = 110% Number of Observations = 45 Water Year = 2014 First Quartile = 99% Median = 104% Third Quartile = 110% Number of Observations = 45 Water Year = 2014 First Quartile = 99% Median = 104% Third Quartile = 110% Number of Observations = 45 Water Year = 2014 First Quartile = 99% Median = 104% Third Quartile = 110% Number of Observations = 45 Water Year = 2013 First Quartile = 98% Median = 101% Third Quartile = 106% Number of Observations = 96 Water Year = 2013 First Quartile = 98% Median = 101% Third Quartile = 106% Number of Observations = 96 Water Year = 2013 First Quartile = 98% Median = 101% Third Quartile = 106% Number of Observations = 96 Water Year = 2013 First Quartile = 98% Median = 101% Third Quartile = 106% Number of Observations = 96 Water Year = 2013 First Quartile = 98% Median = 101% Third Quartile = 106% Number of Observations = 96 Water Year = 2013 First Quartile = 98% Median = 101% Third Quartile = 106% Number of Observations = 96 Water Year = 2013 First Quartile = 98% Median = 101% Third Quartile = 106% Number of Observations = 96 Water Year = 2013 First Quartile = 98% Median = 101% Third Quartile = 106% Number of Observations = 96 Water Year = 2012 First Quartile = 99% Median = 102% Third Quartile = 104% Number of Observations = 48 Water Year = 2012 First Quartile = 99% Median = 102% Third Quartile = 104% Number of Observations = 48 Water Year = 2012 First Quartile = 99% Median = 102% Third Quartile = 104% Number of Observations = 48 Water Year = 2012 First Quartile = 99% Median = 102% Third Quartile = 104% Number of Observations = 48 Water Year = 2012 First Quartile = 99% Median = 102% Third Quartile = 104% Number of Observations = 48 Water Year = 2012 First Quartile = 99% Median = 102% Third Quartile = 104% Number of Observations = 48 Water Year = 2012 First Quartile = 99% Median = 102% Third Quartile = 104% Number of Observations = 48 Water Year = 2012 First Quartile = 99% Median = 102% Third Quartile = 104% Number of Observations = 48 Water Year = 2011 First Quartile = 99% Median = 102% Third Quartile = 104% Number of Observations = 48 Water Year = 2011 First Quartile = 99% Median = 102% Third Quartile = 104% Number of Observations = 48 Water Year = 2011 First Quartile = 99% Median = 102% Third Quartile = 104% Number of Observations = 48 Water Year = 2011 First Quartile = 99% Median = 102% Third Quartile = 104% Number of Observations = 48 Water Year = 2011 First Quartile = 99% Median = 102% Third Quartile = 104% Number of Observations = 48 Water Year = 2011 First Quartile = 99% Median = 102% Third Quartile = 104% Number of Observations = 48 Water Year = 2011 First Quartile = 99% Median = 102% Third Quartile = 104% Number of Observations = 48 Water Year = 2011 First Quartile = 99% Median = 102% Third Quartile = 104% Number of Observations = 48 Water Year = 2010 First Quartile = 101% Median = 104% Third Quartile = 106% Number of Observations = 48 Water Year = 2010 First Quartile = 101% Median = 104% Third Quartile = 106% Number of Observations = 48 Water Year = 2010 First Quartile = 101% Median = 104% Third Quartile = 106% Number of Observations = 48 Water Year = 2010 First Quartile = 101% Median = 104% Third Quartile = 106% Number of Observations = 48 Water Year = 2010 First Quartile = 101% Median = 104% Third Quartile = 106% Number of Observations = 48 Water Year = 2010 First Quartile = 101% Median = 104% Third Quartile = 106% Number of Observations = 48 Water Year = 2010 First Quartile = 101% Median = 104% Third Quartile = 106% Number of Observations = 48 Water Year = 2010 First Quartile = 101% Median = 104% Third Quartile = 106% Number of Observations = 48 Water Year = 2009 First Quartile = 103% Median = 103% Third Quartile = 106% Number of Observations = 4 Water Year = 2009 First Quartile = 103% Median = 103% Third Quartile = 106% Number of Observations = 4 Water Year = 2009 First Quartile = 103% Median = 103% Third Quartile = 106% Number of Observations = 4 Water Year = 2009 First Quartile = 103% Median = 103% Third Quartile = 106% Number of Observations = 4 Water Year = 2009 First Quartile = 103% Median = 103% Third Quartile = 106% Number of Observations = 4 Water Year = 2009 First Quartile = 103% Median = 103% Third Quartile = 106% Number of Observations = 4 Water Year = 2009 First Quartile = 103% Median = 103% Third Quartile = 106% Number of Observations = 4 Water Year = 2009 First Quartile = 103% Median = 103% Third Quartile = 106% Number of Observations = 4 Y = 1
The SGPlot Procedure

Percent Recovery Statistics for Aluminum, unfltd, ICP-MS, recov

Analyte Parm-meth Code Water Year # of
Samples		 25th Pctl 50th Pctl
(Median)		 75th Pctl
Aluminum, unfltd, ICP-MS, recov 01105PLM48 2009 4 102.6% 103.2% 105.9%
    2010 48 101.3% 103.7% 106.2%
    2011 48 99.3% 102.5% 104.0%
    2012 48 98.6% 102.3% 104.4%
    2013 96 97.8% 101.1% 105.6%
    2014 45 98.6% 103.7% 109.7%
    2015 27 97.8% 102.1% 105.7%

Hover over boxplot or outliers for additional information
Chart generated 03/27/2025
Charts and data secured from this U.S. Geological Survey (USGS) web page (identified as IBSP) have not received official USGS approval and as such are provisional and subject to revision. The charts and data are released on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use.


- Aluminum, unfltd, ICP-MS, recov -
Lab: NWQL, PCode: 01105, MCode: PLM77
Analysis Dates: 11/28/18 through 09/25/24
Open Data Set
Boxplot Description

Water Year = 2024 plotvalue = 115% pctrecov = 115% Water Year = 2024 plotvalue = 117% pctrecov = 117% Water Year = 2023 plotvalue = 117% pctrecov = 117% Water Year = 2023 plotvalue = 88% pctrecov = 88% Water Year = 2023 plotvalue = 86% pctrecov = 86% Water Year = 2022 plotvalue = 114% pctrecov = 114% Water Year = 2022 plotvalue = 115% pctrecov = 115% Water Year = 2022 plotvalue = 116% pctrecov = 116% Water Year = 2022 plotvalue = 119% pctrecov = 119% Water Year = 2022 plotvalue = 85% pctrecov = 85% Water Year = 2020 plotvalue = 115% pctrecov = 115% Water Year = 2019 plotvalue = 113% pctrecov = 113% Water Year = 2024 First Quartile = 98% Median = 102% Third Quartile = 104% Number of Observations = 42 Water Year = 2024 First Quartile = 98% Median = 102% Third Quartile = 104% Number of Observations = 42 Water Year = 2024 First Quartile = 98% Median = 102% Third Quartile = 104% Number of Observations = 42 Water Year = 2024 First Quartile = 98% Median = 102% Third Quartile = 104% Number of Observations = 42 Water Year = 2024 First Quartile = 98% Median = 102% Third Quartile = 104% Number of Observations = 42 Water Year = 2024 First Quartile = 98% Median = 102% Third Quartile = 104% Number of Observations = 42 Water Year = 2024 First Quartile = 98% Median = 102% Third Quartile = 104% Number of Observations = 42 Water Year = 2024 First Quartile = 98% Median = 102% Third Quartile = 104% Number of Observations = 42 Water Year = 2023 First Quartile = 99% Median = 101% Third Quartile = 105% Number of Observations = 48 Water Year = 2023 First Quartile = 99% Median = 101% Third Quartile = 105% Number of Observations = 48 Water Year = 2023 First Quartile = 99% Median = 101% Third Quartile = 105% Number of Observations = 48 Water Year = 2023 First Quartile = 99% Median = 101% Third Quartile = 105% Number of Observations = 48 Water Year = 2023 First Quartile = 99% Median = 101% Third Quartile = 105% Number of Observations = 48 Water Year = 2023 First Quartile = 99% Median = 101% Third Quartile = 105% Number of Observations = 48 Water Year = 2023 First Quartile = 99% Median = 101% Third Quartile = 105% Number of Observations = 48 Water Year = 2023 First Quartile = 99% Median = 101% Third Quartile = 105% Number of Observations = 48 Water Year = 2022 First Quartile = 98% Median = 101% Third Quartile = 104% Number of Observations = 47 Water Year = 2022 First Quartile = 98% Median = 101% Third Quartile = 104% Number of Observations = 47 Water Year = 2022 First Quartile = 98% Median = 101% Third Quartile = 104% Number of Observations = 47 Water Year = 2022 First Quartile = 98% Median = 101% Third Quartile = 104% Number of Observations = 47 Water Year = 2022 First Quartile = 98% Median = 101% Third Quartile = 104% Number of Observations = 47 Water Year = 2022 First Quartile = 98% Median = 101% Third Quartile = 104% Number of Observations = 47 Water Year = 2022 First Quartile = 98% Median = 101% Third Quartile = 104% Number of Observations = 47 Water Year = 2022 First Quartile = 98% Median = 101% Third Quartile = 104% Number of Observations = 47 Water Year = 2021 First Quartile = 95% Median = 99% Third Quartile = 102% Number of Observations = 48 Water Year = 2021 First Quartile = 95% Median = 99% Third Quartile = 102% Number of Observations = 48 Water Year = 2021 First Quartile = 95% Median = 99% Third Quartile = 102% Number of Observations = 48 Water Year = 2021 First Quartile = 95% Median = 99% Third Quartile = 102% Number of Observations = 48 Water Year = 2021 First Quartile = 95% Median = 99% Third Quartile = 102% Number of Observations = 48 Water Year = 2021 First Quartile = 95% Median = 99% Third Quartile = 102% Number of Observations = 48 Water Year = 2021 First Quartile = 95% Median = 99% Third Quartile = 102% Number of Observations = 48 Water Year = 2021 First Quartile = 95% Median = 99% Third Quartile = 102% Number of Observations = 48 Water Year = 2020 First Quartile = 96% Median = 100% Third Quartile = 103% Number of Observations = 44 Water Year = 2020 First Quartile = 96% Median = 100% Third Quartile = 103% Number of Observations = 44 Water Year = 2020 First Quartile = 96% Median = 100% Third Quartile = 103% Number of Observations = 44 Water Year = 2020 First Quartile = 96% Median = 100% Third Quartile = 103% Number of Observations = 44 Water Year = 2020 First Quartile = 96% Median = 100% Third Quartile = 103% Number of Observations = 44 Water Year = 2020 First Quartile = 96% Median = 100% Third Quartile = 103% Number of Observations = 44 Water Year = 2020 First Quartile = 96% Median = 100% Third Quartile = 103% Number of Observations = 44 Water Year = 2020 First Quartile = 96% Median = 100% Third Quartile = 103% Number of Observations = 44 Water Year = 2019 First Quartile = 95% Median = 98% Third Quartile = 101% Number of Observations = 37 Water Year = 2019 First Quartile = 95% Median = 98% Third Quartile = 101% Number of Observations = 37 Water Year = 2019 First Quartile = 95% Median = 98% Third Quartile = 101% Number of Observations = 37 Water Year = 2019 First Quartile = 95% Median = 98% Third Quartile = 101% Number of Observations = 37 Water Year = 2019 First Quartile = 95% Median = 98% Third Quartile = 101% Number of Observations = 37 Water Year = 2019 First Quartile = 95% Median = 98% Third Quartile = 101% Number of Observations = 37 Water Year = 2019 First Quartile = 95% Median = 98% Third Quartile = 101% Number of Observations = 37 Water Year = 2019 First Quartile = 95% Median = 98% Third Quartile = 101% Number of Observations = 37 Y = 1
The SGPlot Procedure

Percent Recovery Statistics for Aluminum, unfltd, ICP-MS, recov

Analyte Parm-meth Code Water Year # of
Samples		 25th Pctl 50th Pctl
(Median)		 75th Pctl
Aluminum, unfltd, ICP-MS, recov 01105PLM77 2019 37 94.7% 98.1% 101.3%
    2020 44 95.6% 100.0% 102.5%
    2021 48 94.8% 99.0% 101.7%
    2022 47 98.2% 101.2% 104.2%
    2023 48 99.1% 100.9% 104.7%
    2024 42 98.2% 101.8% 104.0%

Hover over boxplot or outliers for additional information
Chart generated 03/27/2025
Charts and data secured from this U.S. Geological Survey (USGS) web page (identified as IBSP) have not received official USGS approval and as such are provisional and subject to revision. The charts and data are released on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use.


- Aluminum, unfltd, ICP-MS, recov -
Lab: NWQL, PCode: 01105, MCode: PLM78
Analysis Dates: 05/12/15 through 11/27/18
Open Data Set
Boxplot Description

Water Year = 2017 plotvalue = 85% pctrecov = 85% Water Year = 2017 plotvalue = 83% pctrecov = 83% Water Year = 2016 plotvalue = 126% pctrecov = 126% Water Year = 2016 plotvalue = 130% pctrecov = 132% Water Year = 2016 plotvalue = 130% pctrecov = 133% Water Year = 2016 plotvalue = 130% pctrecov = 131% Water Year = 2019 First Quartile = 98% Median = 102% Third Quartile = 105% Number of Observations = 3 Water Year = 2019 First Quartile = 98% Median = 102% Third Quartile = 105% Number of Observations = 3 Water Year = 2019 First Quartile = 98% Median = 102% Third Quartile = 105% Number of Observations = 3 Water Year = 2019 First Quartile = 98% Median = 102% Third Quartile = 105% Number of Observations = 3 Water Year = 2019 First Quartile = 98% Median = 102% Third Quartile = 105% Number of Observations = 3 Water Year = 2019 First Quartile = 98% Median = 102% Third Quartile = 105% Number of Observations = 3 Water Year = 2019 First Quartile = 98% Median = 102% Third Quartile = 105% Number of Observations = 3 Water Year = 2019 First Quartile = 98% Median = 102% Third Quartile = 105% Number of Observations = 3 Water Year = 2017 First Quartile = 98% Median = 102% Third Quartile = 105% Number of Observations = 48 Water Year = 2017 First Quartile = 98% Median = 102% Third Quartile = 105% Number of Observations = 48 Water Year = 2017 First Quartile = 98% Median = 102% Third Quartile = 105% Number of Observations = 48 Water Year = 2017 First Quartile = 98% Median = 102% Third Quartile = 105% Number of Observations = 48 Water Year = 2017 First Quartile = 98% Median = 102% Third Quartile = 105% Number of Observations = 48 Water Year = 2017 First Quartile = 98% Median = 102% Third Quartile = 105% Number of Observations = 48 Water Year = 2017 First Quartile = 98% Median = 102% Third Quartile = 105% Number of Observations = 48 Water Year = 2017 First Quartile = 98% Median = 102% Third Quartile = 105% Number of Observations = 48 Water Year = 2016 First Quartile = 100% Median = 104% Third Quartile = 108% Number of Observations = 65 Water Year = 2016 First Quartile = 100% Median = 104% Third Quartile = 108% Number of Observations = 65 Water Year = 2016 First Quartile = 100% Median = 104% Third Quartile = 108% Number of Observations = 65 Water Year = 2016 First Quartile = 100% Median = 104% Third Quartile = 108% Number of Observations = 65 Water Year = 2016 First Quartile = 100% Median = 104% Third Quartile = 108% Number of Observations = 65 Water Year = 2016 First Quartile = 100% Median = 104% Third Quartile = 108% Number of Observations = 65 Water Year = 2016 First Quartile = 100% Median = 104% Third Quartile = 108% Number of Observations = 65 Water Year = 2016 First Quartile = 100% Median = 104% Third Quartile = 108% Number of Observations = 65 Water Year = 2015 First Quartile = 95% Median = 99% Third Quartile = 107% Number of Observations = 31 Water Year = 2015 First Quartile = 95% Median = 99% Third Quartile = 107% Number of Observations = 31 Water Year = 2015 First Quartile = 95% Median = 99% Third Quartile = 107% Number of Observations = 31 Water Year = 2015 First Quartile = 95% Median = 99% Third Quartile = 107% Number of Observations = 31 Water Year = 2015 First Quartile = 95% Median = 99% Third Quartile = 107% Number of Observations = 31 Water Year = 2015 First Quartile = 95% Median = 99% Third Quartile = 107% Number of Observations = 31 Water Year = 2015 First Quartile = 95% Median = 99% Third Quartile = 107% Number of Observations = 31 Water Year = 2015 First Quartile = 95% Median = 99% Third Quartile = 107% Number of Observations = 31 Y = 1
The SGPlot Procedure

Percent Recovery Statistics for Aluminum, unfltd, ICP-MS, recov

Analyte Parm-meth Code Water Year # of
Samples		 25th Pctl 50th Pctl
(Median)		 75th Pctl
Aluminum, unfltd, ICP-MS, recov 01105PLM78 2015 31 95.0% 99.2% 107.2%
    2016 65 99.8% 103.9% 107.9%
    2017 48 98.0% 101.5% 105.4%
    2019 3 98.4% 101.8% 105.3%

Hover over boxplot or outliers for additional information
Chart generated 03/27/2025
Charts and data secured from this U.S. Geological Survey (USGS) web page (identified as IBSP) have not received official USGS approval and as such are provisional and subject to revision. The charts and data are released on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use.


- Antimony, fltd, ICP-MS -
Lab: NWQL, PCode: 01095, MCode: PLM43
Analysis Dates: 10/09/09 through 09/28/24
Open Data Set
Boxplot Description

Water Year = 2024 plotvalue = 130% pctrecov = 131% Water Year = 2024 plotvalue = 90% pctrecov = 90% Water Year = 2024 plotvalue = 90% pctrecov = 90% Water Year = 2024 plotvalue = 88% pctrecov = 88% Water Year = 2024 plotvalue = 88% pctrecov = 88% Water Year = 2024 plotvalue = 87% pctrecov = 87% Water Year = 2024 plotvalue = 83% pctrecov = 83% Water Year = 2023 plotvalue = 88% pctrecov = 88% Water Year = 2023 plotvalue = 78% pctrecov = 78% Water Year = 2023 plotvalue = 75% pctrecov = 75% Water Year = 2022 plotvalue = 116% pctrecov = 116% Water Year = 2022 plotvalue = 118% pctrecov = 118% Water Year = 2022 plotvalue = 128% pctrecov = 128% Water Year = 2022 plotvalue = 130% pctrecov = 139% Water Year = 2022 plotvalue = 85% pctrecov = 85% Water Year = 2022 plotvalue = 84% pctrecov = 84% Water Year = 2021 plotvalue = 88% pctrecov = 88% Water Year = 2021 plotvalue = 88% pctrecov = 88% Water Year = 2021 plotvalue = 85% pctrecov = 85% Water Year = 2021 plotvalue = 83% pctrecov = 83% Water Year = 2021 plotvalue = 76% pctrecov = 76% Water Year = 2020 plotvalue = 113% pctrecov = 113% Water Year = 2020 plotvalue = 88% pctrecov = 88% Water Year = 2020 plotvalue = 81% pctrecov = 81% Water Year = 2019 plotvalue = 87% pctrecov = 87% Water Year = 2019 plotvalue = 70% pctrecov = 2% Water Year = 2017 plotvalue = 110% pctrecov = 110% Water Year = 2017 plotvalue = 115% pctrecov = 115% Water Year = 2017 plotvalue = 92% pctrecov = 92% Water Year = 2017 plotvalue = 91% pctrecov = 91% Water Year = 2016 plotvalue = 85% pctrecov = 85% Water Year = 2016 plotvalue = 70% pctrecov = 35% Water Year = 2016 plotvalue = 70% pctrecov = 1% Water Year = 2016 plotvalue = 70% pctrecov = 17% Water Year = 2015 plotvalue = 82% pctrecov = 82% Water Year = 2015 plotvalue = 70% pctrecov = 11% Water Year = 2015 plotvalue = 70% pctrecov = 18% Water Year = 2014 plotvalue = 104% pctrecov = 104% Water Year = 2014 plotvalue = 107% pctrecov = 107% Water Year = 2014 plotvalue = 107% pctrecov = 107% Water Year = 2014 plotvalue = 127% pctrecov = 127% Water Year = 2014 plotvalue = 70% pctrecov = 12% Water Year = 2014 plotvalue = 70% pctrecov = 11% Water Year = 2014 plotvalue = 70% pctrecov = 34% Water Year = 2013 plotvalue = 70% pctrecov = 14% Water Year = 2010 plotvalue = 117% pctrecov = 117% Water Year = 2010 plotvalue = 119% pctrecov = 119% Water Year = 2010 plotvalue = 122% pctrecov = 122% Water Year = 2010 plotvalue = 128% pctrecov = 128% Water Year = 2010 plotvalue = 91% pctrecov = 91% Water Year = 2010 plotvalue = 89% pctrecov = 89% Water Year = 2010 plotvalue = 89% pctrecov = 89% Water Year = 2024 First Quartile = 99% Median = 102% Third Quartile = 104% Number of Observations = 72 Water Year = 2024 First Quartile = 99% Median = 102% Third Quartile = 104% Number of Observations = 72 Water Year = 2024 First Quartile = 99% Median = 102% Third Quartile = 104% Number of Observations = 72 Water Year = 2024 First Quartile = 99% Median = 102% Third Quartile = 104% Number of Observations = 72 Water Year = 2024 First Quartile = 99% Median = 102% Third Quartile = 104% Number of Observations = 72 Water Year = 2024 First Quartile = 99% Median = 102% Third Quartile = 104% Number of Observations = 72 Water Year = 2024 First Quartile = 99% Median = 102% Third Quartile = 104% Number of Observations = 72 Water Year = 2024 First Quartile = 99% Median = 102% Third Quartile = 104% Number of Observations = 72 Water Year = 2023 First Quartile = 98% Median = 101% Third Quartile = 104% Number of Observations = 89 Water Year = 2023 First Quartile = 98% Median = 101% Third Quartile = 104% Number of Observations = 89 Water Year = 2023 First Quartile = 98% Median = 101% Third Quartile = 104% Number of Observations = 89 Water Year = 2023 First Quartile = 98% Median = 101% Third Quartile = 104% Number of Observations = 89 Water Year = 2023 First Quartile = 98% Median = 101% Third Quartile = 104% Number of Observations = 89 Water Year = 2023 First Quartile = 98% Median = 101% Third Quartile = 104% Number of Observations = 89 Water Year = 2023 First Quartile = 98% Median = 101% Third Quartile = 104% Number of Observations = 89 Water Year = 2023 First Quartile = 98% Median = 101% Third Quartile = 104% Number of Observations = 89 Water Year = 2022 First Quartile = 98% Median = 100% Third Quartile = 103% Number of Observations = 89 Water Year = 2022 First Quartile = 98% Median = 100% Third Quartile = 103% Number of Observations = 89 Water Year = 2022 First Quartile = 98% Median = 100% Third Quartile = 103% Number of Observations = 89 Water Year = 2022 First Quartile = 98% Median = 100% Third Quartile = 103% Number of Observations = 89 Water Year = 2022 First Quartile = 98% Median = 100% Third Quartile = 103% Number of Observations = 89 Water Year = 2022 First Quartile = 98% Median = 100% Third Quartile = 103% Number of Observations = 89 Water Year = 2022 First Quartile = 98% Median = 100% Third Quartile = 103% Number of Observations = 89 Water Year = 2022 First Quartile = 98% Median = 100% Third Quartile = 103% Number of Observations = 89 Water Year = 2021 First Quartile = 99% Median = 103% Third Quartile = 105% Number of Observations = 90 Water Year = 2021 First Quartile = 99% Median = 103% Third Quartile = 105% Number of Observations = 90 Water Year = 2021 First Quartile = 99% Median = 103% Third Quartile = 105% Number of Observations = 90 Water Year = 2021 First Quartile = 99% Median = 103% Third Quartile = 105% Number of Observations = 90 Water Year = 2021 First Quartile = 99% Median = 103% Third Quartile = 105% Number of Observations = 90 Water Year = 2021 First Quartile = 99% Median = 103% Third Quartile = 105% Number of Observations = 90 Water Year = 2021 First Quartile = 99% Median = 103% Third Quartile = 105% Number of Observations = 90 Water Year = 2021 First Quartile = 99% Median = 103% Third Quartile = 105% Number of Observations = 90 Water Year = 2020 First Quartile = 99% Median = 102% Third Quartile = 105% Number of Observations = 86 Water Year = 2020 First Quartile = 99% Median = 102% Third Quartile = 105% Number of Observations = 86 Water Year = 2020 First Quartile = 99% Median = 102% Third Quartile = 105% Number of Observations = 86 Water Year = 2020 First Quartile = 99% Median = 102% Third Quartile = 105% Number of Observations = 86 Water Year = 2020 First Quartile = 99% Median = 102% Third Quartile = 105% Number of Observations = 86 Water Year = 2020 First Quartile = 99% Median = 102% Third Quartile = 105% Number of Observations = 86 Water Year = 2020 First Quartile = 99% Median = 102% Third Quartile = 105% Number of Observations = 86 Water Year = 2020 First Quartile = 99% Median = 102% Third Quartile = 105% Number of Observations = 86 Water Year = 2019 First Quartile = 98% Median = 102% Third Quartile = 105% Number of Observations = 78 Water Year = 2019 First Quartile = 98% Median = 102% Third Quartile = 105% Number of Observations = 78 Water Year = 2019 First Quartile = 98% Median = 102% Third Quartile = 105% Number of Observations = 78 Water Year = 2019 First Quartile = 98% Median = 102% Third Quartile = 105% Number of Observations = 78 Water Year = 2019 First Quartile = 98% Median = 102% Third Quartile = 105% Number of Observations = 78 Water Year = 2019 First Quartile = 98% Median = 102% Third Quartile = 105% Number of Observations = 78 Water Year = 2019 First Quartile = 98% Median = 102% Third Quartile = 105% Number of Observations = 78 Water Year = 2019 First Quartile = 98% Median = 102% Third Quartile = 105% Number of Observations = 78 Water Year = 2017 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 90 Water Year = 2017 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 90 Water Year = 2017 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 90 Water Year = 2017 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 90 Water Year = 2017 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 90 Water Year = 2017 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 90 Water Year = 2017 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 90 Water Year = 2017 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 90 Water Year = 2016 First Quartile = 95% Median = 99% Third Quartile = 101% Number of Observations = 74 Water Year = 2016 First Quartile = 95% Median = 99% Third Quartile = 101% Number of Observations = 74 Water Year = 2016 First Quartile = 95% Median = 99% Third Quartile = 101% Number of Observations = 74 Water Year = 2016 First Quartile = 95% Median = 99% Third Quartile = 101% Number of Observations = 74 Water Year = 2016 First Quartile = 95% Median = 99% Third Quartile = 101% Number of Observations = 74 Water Year = 2016 First Quartile = 95% Median = 99% Third Quartile = 101% Number of Observations = 74 Water Year = 2016 First Quartile = 95% Median = 99% Third Quartile = 101% Number of Observations = 74 Water Year = 2016 First Quartile = 95% Median = 99% Third Quartile = 101% Number of Observations = 74 Water Year = 2015 First Quartile = 95% Median = 98% Third Quartile = 100% Number of Observations = 72 Water Year = 2015 First Quartile = 95% Median = 98% Third Quartile = 100% Number of Observations = 72 Water Year = 2015 First Quartile = 95% Median = 98% Third Quartile = 100% Number of Observations = 72 Water Year = 2015 First Quartile = 95% Median = 98% Third Quartile = 100% Number of Observations = 72 Water Year = 2015 First Quartile = 95% Median = 98% Third Quartile = 100% Number of Observations = 72 Water Year = 2015 First Quartile = 95% Median = 98% Third Quartile = 100% Number of Observations = 72 Water Year = 2015 First Quartile = 95% Median = 98% Third Quartile = 100% Number of Observations = 72 Water Year = 2015 First Quartile = 95% Median = 98% Third Quartile = 100% Number of Observations = 72 Water Year = 2014 First Quartile = 93% Median = 95% Third Quartile = 97% Number of Observations = 83 Water Year = 2014 First Quartile = 93% Median = 95% Third Quartile = 97% Number of Observations = 83 Water Year = 2014 First Quartile = 93% Median = 95% Third Quartile = 97% Number of Observations = 83 Water Year = 2014 First Quartile = 93% Median = 95% Third Quartile = 97% Number of Observations = 83 Water Year = 2014 First Quartile = 93% Median = 95% Third Quartile = 97% Number of Observations = 83 Water Year = 2014 First Quartile = 93% Median = 95% Third Quartile = 97% Number of Observations = 83 Water Year = 2014 First Quartile = 93% Median = 95% Third Quartile = 97% Number of Observations = 83 Water Year = 2014 First Quartile = 93% Median = 95% Third Quartile = 97% Number of Observations = 83 Water Year = 2013 First Quartile = 95% Median = 98% Third Quartile = 103% Number of Observations = 108 Water Year = 2013 First Quartile = 95% Median = 98% Third Quartile = 103% Number of Observations = 108 Water Year = 2013 First Quartile = 95% Median = 98% Third Quartile = 103% Number of Observations = 108 Water Year = 2013 First Quartile = 95% Median = 98% Third Quartile = 103% Number of Observations = 108 Water Year = 2013 First Quartile = 95% Median = 98% Third Quartile = 103% Number of Observations = 108 Water Year = 2013 First Quartile = 95% Median = 98% Third Quartile = 103% Number of Observations = 108 Water Year = 2013 First Quartile = 95% Median = 98% Third Quartile = 103% Number of Observations = 108 Water Year = 2013 First Quartile = 95% Median = 98% Third Quartile = 103% Number of Observations = 108 Water Year = 2012 First Quartile = 80% Median = 86% Third Quartile = 93% Number of Observations = 132 Water Year = 2012 First Quartile = 80% Median = 86% Third Quartile = 93% Number of Observations = 132 Water Year = 2012 First Quartile = 80% Median = 86% Third Quartile = 93% Number of Observations = 132 Water Year = 2012 First Quartile = 80% Median = 86% Third Quartile = 93% Number of Observations = 132 Water Year = 2012 First Quartile = 80% Median = 86% Third Quartile = 93% Number of Observations = 132 Water Year = 2012 First Quartile = 80% Median = 86% Third Quartile = 93% Number of Observations = 132 Water Year = 2012 First Quartile = 80% Median = 86% Third Quartile = 93% Number of Observations = 132 Water Year = 2012 First Quartile = 80% Median = 86% Third Quartile = 93% Number of Observations = 132 Water Year = 2011 First Quartile = 85% Median = 92% Third Quartile = 99% Number of Observations = 131 Water Year = 2011 First Quartile = 85% Median = 92% Third Quartile = 99% Number of Observations = 131 Water Year = 2011 First Quartile = 85% Median = 92% Third Quartile = 99% Number of Observations = 131 Water Year = 2011 First Quartile = 85% Median = 92% Third Quartile = 99% Number of Observations = 131 Water Year = 2011 First Quartile = 85% Median = 92% Third Quartile = 99% Number of Observations = 131 Water Year = 2011 First Quartile = 85% Median = 92% Third Quartile = 99% Number of Observations = 131 Water Year = 2011 First Quartile = 85% Median = 92% Third Quartile = 99% Number of Observations = 131 Water Year = 2011 First Quartile = 85% Median = 92% Third Quartile = 99% Number of Observations = 131 Water Year = 2010 First Quartile = 100% Median = 102% Third Quartile = 105% Number of Observations = 132 Water Year = 2010 First Quartile = 100% Median = 102% Third Quartile = 105% Number of Observations = 132 Water Year = 2010 First Quartile = 100% Median = 102% Third Quartile = 105% Number of Observations = 132 Water Year = 2010 First Quartile = 100% Median = 102% Third Quartile = 105% Number of Observations = 132 Water Year = 2010 First Quartile = 100% Median = 102% Third Quartile = 105% Number of Observations = 132 Water Year = 2010 First Quartile = 100% Median = 102% Third Quartile = 105% Number of Observations = 132 Water Year = 2010 First Quartile = 100% Median = 102% Third Quartile = 105% Number of Observations = 132 Water Year = 2010 First Quartile = 100% Median = 102% Third Quartile = 105% Number of Observations = 132 Y = 1
The SGPlot Procedure

Percent Recovery Statistics for Antimony, fltd, ICP-MS

Analyte Parm-meth Code Water Year # of
Samples		 25th Pctl 50th Pctl
(Median)		 75th Pctl
Antimony, fltd, ICP-MS 01095PLM43 2010 132 99.8% 102.4% 105.3%
    2011 131 85.1% 92.2% 98.5%
    2012 132 80.4% 86.0% 93.2%
    2013 108 94.8% 97.6% 102.5%
    2014 83 92.9% 95.4% 97.4%
    2015 72 94.7% 98.1% 100.3%
    2016 74 95.3% 99.0% 101.3%
    2017 90 98.8% 100.8% 102.8%
    2019 78 98.5% 101.5% 105.2%
    2020 86 99.1% 101.8% 104.6%
    2021 90 98.9% 102.6% 105.4%
    2022 89 97.9% 100.3% 103.4%
    2023 89 98.5% 101.3% 103.6%
    2024 72 99.3% 101.8% 104.5%

Hover over boxplot or outliers for additional information
Chart generated 03/27/2025
Charts and data secured from this U.S. Geological Survey (USGS) web page (identified as IBSP) have not received official USGS approval and as such are provisional and subject to revision. The charts and data are released on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use.


- Antimony, unfltd, ICP-MS, recov -
Lab: NWQL, PCode: 01097, MCode: PLM48
Analysis Dates: 10/06/09 through 04/30/15
Open Data Set
Boxplot Description

Water Year = 2014 plotvalue = 106% pctrecov = 106% Water Year = 2014 plotvalue = 108% pctrecov = 108% Water Year = 2013 plotvalue = 107% pctrecov = 107% Water Year = 2013 plotvalue = 112% pctrecov = 112% Water Year = 2013 plotvalue = 85% pctrecov = 85% Water Year = 2011 plotvalue = 109% pctrecov = 109% Water Year = 2011 plotvalue = 113% pctrecov = 113% Water Year = 2011 plotvalue = 115% pctrecov = 115% Water Year = 2011 plotvalue = 127% pctrecov = 127% Water Year = 2011 plotvalue = 130% pctrecov = 171% Water Year = 2011 plotvalue = 130% pctrecov = 181% Water Year = 2011 plotvalue = 130% pctrecov = 199% Water Year = 2010 plotvalue = 70% pctrecov = 69% Water Year = 2015 First Quartile = 96% Median = 98% Third Quartile = 100% Number of Observations = 27 Water Year = 2015 First Quartile = 96% Median = 98% Third Quartile = 100% Number of Observations = 27 Water Year = 2015 First Quartile = 96% Median = 98% Third Quartile = 100% Number of Observations = 27 Water Year = 2015 First Quartile = 96% Median = 98% Third Quartile = 100% Number of Observations = 27 Water Year = 2015 First Quartile = 96% Median = 98% Third Quartile = 100% Number of Observations = 27 Water Year = 2015 First Quartile = 96% Median = 98% Third Quartile = 100% Number of Observations = 27 Water Year = 2015 First Quartile = 96% Median = 98% Third Quartile = 100% Number of Observations = 27 Water Year = 2015 First Quartile = 96% Median = 98% Third Quartile = 100% Number of Observations = 27 Water Year = 2014 First Quartile = 96% Median = 97% Third Quartile = 99% Number of Observations = 32 Water Year = 2014 First Quartile = 96% Median = 97% Third Quartile = 99% Number of Observations = 32 Water Year = 2014 First Quartile = 96% Median = 97% Third Quartile = 99% Number of Observations = 32 Water Year = 2014 First Quartile = 96% Median = 97% Third Quartile = 99% Number of Observations = 32 Water Year = 2014 First Quartile = 96% Median = 97% Third Quartile = 99% Number of Observations = 32 Water Year = 2014 First Quartile = 96% Median = 97% Third Quartile = 99% Number of Observations = 32 Water Year = 2014 First Quartile = 96% Median = 97% Third Quartile = 99% Number of Observations = 32 Water Year = 2014 First Quartile = 96% Median = 97% Third Quartile = 99% Number of Observations = 32 Water Year = 2013 First Quartile = 93% Median = 95% Third Quartile = 98% Number of Observations = 48 Water Year = 2013 First Quartile = 93% Median = 95% Third Quartile = 98% Number of Observations = 48 Water Year = 2013 First Quartile = 93% Median = 95% Third Quartile = 98% Number of Observations = 48 Water Year = 2013 First Quartile = 93% Median = 95% Third Quartile = 98% Number of Observations = 48 Water Year = 2013 First Quartile = 93% Median = 95% Third Quartile = 98% Number of Observations = 48 Water Year = 2013 First Quartile = 93% Median = 95% Third Quartile = 98% Number of Observations = 48 Water Year = 2013 First Quartile = 93% Median = 95% Third Quartile = 98% Number of Observations = 48 Water Year = 2013 First Quartile = 93% Median = 95% Third Quartile = 98% Number of Observations = 48 Water Year = 2011 First Quartile = 95% Median = 98% Third Quartile = 100% Number of Observations = 48 Water Year = 2011 First Quartile = 95% Median = 98% Third Quartile = 100% Number of Observations = 48 Water Year = 2011 First Quartile = 95% Median = 98% Third Quartile = 100% Number of Observations = 48 Water Year = 2011 First Quartile = 95% Median = 98% Third Quartile = 100% Number of Observations = 48 Water Year = 2011 First Quartile = 95% Median = 98% Third Quartile = 100% Number of Observations = 48 Water Year = 2011 First Quartile = 95% Median = 98% Third Quartile = 100% Number of Observations = 48 Water Year = 2011 First Quartile = 95% Median = 98% Third Quartile = 100% Number of Observations = 48 Water Year = 2011 First Quartile = 95% Median = 98% Third Quartile = 100% Number of Observations = 48 Water Year = 2010 First Quartile = 93% Median = 97% Third Quartile = 99% Number of Observations = 48 Water Year = 2010 First Quartile = 93% Median = 97% Third Quartile = 99% Number of Observations = 48 Water Year = 2010 First Quartile = 93% Median = 97% Third Quartile = 99% Number of Observations = 48 Water Year = 2010 First Quartile = 93% Median = 97% Third Quartile = 99% Number of Observations = 48 Water Year = 2010 First Quartile = 93% Median = 97% Third Quartile = 99% Number of Observations = 48 Water Year = 2010 First Quartile = 93% Median = 97% Third Quartile = 99% Number of Observations = 48 Water Year = 2010 First Quartile = 93% Median = 97% Third Quartile = 99% Number of Observations = 48 Water Year = 2010 First Quartile = 93% Median = 97% Third Quartile = 99% Number of Observations = 48 Water Year = 2009 First Quartile = 99% Median = 100% Third Quartile = 102% Number of Observations = 4 Water Year = 2009 First Quartile = 99% Median = 100% Third Quartile = 102% Number of Observations = 4 Water Year = 2009 First Quartile = 99% Median = 100% Third Quartile = 102% Number of Observations = 4 Water Year = 2009 First Quartile = 99% Median = 100% Third Quartile = 102% Number of Observations = 4 Water Year = 2009 First Quartile = 99% Median = 100% Third Quartile = 102% Number of Observations = 4 Water Year = 2009 First Quartile = 99% Median = 100% Third Quartile = 102% Number of Observations = 4 Water Year = 2009 First Quartile = 99% Median = 100% Third Quartile = 102% Number of Observations = 4 Water Year = 2009 First Quartile = 99% Median = 100% Third Quartile = 102% Number of Observations = 4 Y = 1
The SGPlot Procedure

Percent Recovery Statistics for Antimony, unfltd, ICP-MS, recov

Analyte Parm-meth Code Water Year # of
Samples		 25th Pctl 50th Pctl
(Median)		 75th Pctl
Antimony, unfltd, ICP-MS, recov 01097PLM48 2009 4 99.1% 100.5% 102.4%
    2010 48 92.9% 96.7% 99.0%
    2011 48 95.1% 97.6% 100.1%
    2013 48 92.9% 95.1% 97.8%
    2014 32 95.8% 97.5% 99.4%
    2015 27 96.3% 97.8% 99.7%

Hover over boxplot or outliers for additional information
Chart generated 03/27/2025
Charts and data secured from this U.S. Geological Survey (USGS) web page (identified as IBSP) have not received official USGS approval and as such are provisional and subject to revision. The charts and data are released on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use.


- Antimony, unfltd, ICP-MS, recov -
Lab: NWQL, PCode: 01097, MCode: PLM78
Analysis Dates: 05/12/15 through 09/25/24
Open Data Set
Boxplot Description

Water Year = 2023 plotvalue = 81% pctrecov = 81% Water Year = 2021 plotvalue = 130% pctrecov = 138% Water Year = 2021 plotvalue = 92% pctrecov = 92% Water Year = 2021 plotvalue = 80% pctrecov = 80% Water Year = 2021 plotvalue = 76% pctrecov = 76% Water Year = 2019 plotvalue = 119% pctrecov = 119% Water Year = 2016 plotvalue = 127% pctrecov = 127% Water Year = 2015 plotvalue = 113% pctrecov = 113% Water Year = 2015 plotvalue = 86% pctrecov = 86% Water Year = 2024 First Quartile = 83% Median = 96% Third Quartile = 104% Number of Observations = 42 Water Year = 2024 First Quartile = 83% Median = 96% Third Quartile = 104% Number of Observations = 42 Water Year = 2024 First Quartile = 83% Median = 96% Third Quartile = 104% Number of Observations = 42 Water Year = 2024 First Quartile = 83% Median = 96% Third Quartile = 104% Number of Observations = 42 Water Year = 2024 First Quartile = 83% Median = 96% Third Quartile = 104% Number of Observations = 42 Water Year = 2024 First Quartile = 83% Median = 96% Third Quartile = 104% Number of Observations = 42 Water Year = 2024 First Quartile = 83% Median = 96% Third Quartile = 104% Number of Observations = 42 Water Year = 2024 First Quartile = 83% Median = 96% Third Quartile = 104% Number of Observations = 42 Water Year = 2023 First Quartile = 96% Median = 98% Third Quartile = 102% Number of Observations = 48 Water Year = 2023 First Quartile = 96% Median = 98% Third Quartile = 102% Number of Observations = 48 Water Year = 2023 First Quartile = 96% Median = 98% Third Quartile = 102% Number of Observations = 48 Water Year = 2023 First Quartile = 96% Median = 98% Third Quartile = 102% Number of Observations = 48 Water Year = 2023 First Quartile = 96% Median = 98% Third Quartile = 102% Number of Observations = 48 Water Year = 2023 First Quartile = 96% Median = 98% Third Quartile = 102% Number of Observations = 48 Water Year = 2023 First Quartile = 96% Median = 98% Third Quartile = 102% Number of Observations = 48 Water Year = 2023 First Quartile = 96% Median = 98% Third Quartile = 102% Number of Observations = 48 Water Year = 2022 First Quartile = 96% Median = 99% Third Quartile = 103% Number of Observations = 47 Water Year = 2022 First Quartile = 96% Median = 99% Third Quartile = 103% Number of Observations = 47 Water Year = 2022 First Quartile = 96% Median = 99% Third Quartile = 103% Number of Observations = 47 Water Year = 2022 First Quartile = 96% Median = 99% Third Quartile = 103% Number of Observations = 47 Water Year = 2022 First Quartile = 96% Median = 99% Third Quartile = 103% Number of Observations = 47 Water Year = 2022 First Quartile = 96% Median = 99% Third Quartile = 103% Number of Observations = 47 Water Year = 2022 First Quartile = 96% Median = 99% Third Quartile = 103% Number of Observations = 47 Water Year = 2022 First Quartile = 96% Median = 99% Third Quartile = 103% Number of Observations = 47 Water Year = 2021 First Quartile = 100% Median = 104% Third Quartile = 105% Number of Observations = 48 Water Year = 2021 First Quartile = 100% Median = 104% Third Quartile = 105% Number of Observations = 48 Water Year = 2021 First Quartile = 100% Median = 104% Third Quartile = 105% Number of Observations = 48 Water Year = 2021 First Quartile = 100% Median = 104% Third Quartile = 105% Number of Observations = 48 Water Year = 2021 First Quartile = 100% Median = 104% Third Quartile = 105% Number of Observations = 48 Water Year = 2021 First Quartile = 100% Median = 104% Third Quartile = 105% Number of Observations = 48 Water Year = 2021 First Quartile = 100% Median = 104% Third Quartile = 105% Number of Observations = 48 Water Year = 2021 First Quartile = 100% Median = 104% Third Quartile = 105% Number of Observations = 48 Water Year = 2020 First Quartile = 99% Median = 102% Third Quartile = 105% Number of Observations = 44 Water Year = 2020 First Quartile = 99% Median = 102% Third Quartile = 105% Number of Observations = 44 Water Year = 2020 First Quartile = 99% Median = 102% Third Quartile = 105% Number of Observations = 44 Water Year = 2020 First Quartile = 99% Median = 102% Third Quartile = 105% Number of Observations = 44 Water Year = 2020 First Quartile = 99% Median = 102% Third Quartile = 105% Number of Observations = 44 Water Year = 2020 First Quartile = 99% Median = 102% Third Quartile = 105% Number of Observations = 44 Water Year = 2020 First Quartile = 99% Median = 102% Third Quartile = 105% Number of Observations = 44 Water Year = 2020 First Quartile = 99% Median = 102% Third Quartile = 105% Number of Observations = 44 Water Year = 2019 First Quartile = 100% Median = 103% Third Quartile = 106% Number of Observations = 40 Water Year = 2019 First Quartile = 100% Median = 103% Third Quartile = 106% Number of Observations = 40 Water Year = 2019 First Quartile = 100% Median = 103% Third Quartile = 106% Number of Observations = 40 Water Year = 2019 First Quartile = 100% Median = 103% Third Quartile = 106% Number of Observations = 40 Water Year = 2019 First Quartile = 100% Median = 103% Third Quartile = 106% Number of Observations = 40 Water Year = 2019 First Quartile = 100% Median = 103% Third Quartile = 106% Number of Observations = 40 Water Year = 2019 First Quartile = 100% Median = 103% Third Quartile = 106% Number of Observations = 40 Water Year = 2019 First Quartile = 100% Median = 103% Third Quartile = 106% Number of Observations = 40 Water Year = 2017 First Quartile = 100% Median = 103% Third Quartile = 106% Number of Observations = 48 Water Year = 2017 First Quartile = 100% Median = 103% Third Quartile = 106% Number of Observations = 48 Water Year = 2017 First Quartile = 100% Median = 103% Third Quartile = 106% Number of Observations = 48 Water Year = 2017 First Quartile = 100% Median = 103% Third Quartile = 106% Number of Observations = 48 Water Year = 2017 First Quartile = 100% Median = 103% Third Quartile = 106% Number of Observations = 48 Water Year = 2017 First Quartile = 100% Median = 103% Third Quartile = 106% Number of Observations = 48 Water Year = 2017 First Quartile = 100% Median = 103% Third Quartile = 106% Number of Observations = 48 Water Year = 2017 First Quartile = 100% Median = 103% Third Quartile = 106% Number of Observations = 48 Water Year = 2016 First Quartile = 98% Median = 100% Third Quartile = 105% Number of Observations = 42 Water Year = 2016 First Quartile = 98% Median = 100% Third Quartile = 105% Number of Observations = 42 Water Year = 2016 First Quartile = 98% Median = 100% Third Quartile = 105% Number of Observations = 42 Water Year = 2016 First Quartile = 98% Median = 100% Third Quartile = 105% Number of Observations = 42 Water Year = 2016 First Quartile = 98% Median = 100% Third Quartile = 105% Number of Observations = 42 Water Year = 2016 First Quartile = 98% Median = 100% Third Quartile = 105% Number of Observations = 42 Water Year = 2016 First Quartile = 98% Median = 100% Third Quartile = 105% Number of Observations = 42 Water Year = 2016 First Quartile = 98% Median = 100% Third Quartile = 105% Number of Observations = 42 Water Year = 2015 First Quartile = 98% Median = 101% Third Quartile = 103% Number of Observations = 21 Water Year = 2015 First Quartile = 98% Median = 101% Third Quartile = 103% Number of Observations = 21 Water Year = 2015 First Quartile = 98% Median = 101% Third Quartile = 103% Number of Observations = 21 Water Year = 2015 First Quartile = 98% Median = 101% Third Quartile = 103% Number of Observations = 21 Water Year = 2015 First Quartile = 98% Median = 101% Third Quartile = 103% Number of Observations = 21 Water Year = 2015 First Quartile = 98% Median = 101% Third Quartile = 103% Number of Observations = 21 Water Year = 2015 First Quartile = 98% Median = 101% Third Quartile = 103% Number of Observations = 21 Water Year = 2015 First Quartile = 98% Median = 101% Third Quartile = 103% Number of Observations = 21 Y = 1
The SGPlot Procedure

Percent Recovery Statistics for Antimony, unfltd, ICP-MS, recov

Analyte Parm-meth Code Water Year # of
Samples		 25th Pctl 50th Pctl
(Median)		 75th Pctl
Antimony, unfltd, ICP-MS, recov 01097PLM78 2015 21 98.5% 101.3% 103.3%
    2016 42 98.5% 100.4% 105.0%
    2017 48 99.7% 102.9% 106.3%
    2019 40 99.7% 103.1% 105.8%
    2020 44 99.3% 102.3% 105.3%
    2021 48 100.3% 103.6% 104.9%
    2022 47 95.9% 99.0% 103.2%
    2023 48 95.5% 97.9% 102.0%
    2024 42 82.9% 96.4% 103.7%

Hover over boxplot or outliers for additional information
Chart generated 03/27/2025
Charts and data secured from this U.S. Geological Survey (USGS) web page (identified as IBSP) have not received official USGS approval and as such are provisional and subject to revision. The charts and data are released on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use.


- Arsenic, fltd, cICP-MS -
Lab: NWQL, PCode: 01000, MCode: PLM10
Analysis Dates: 10/09/09 through 09/28/24
Open Data Set
Boxplot Description

Water Year = 2024 plotvalue = 130% pctrecov = 181% Water Year = 2024 plotvalue = 82% pctrecov = 82% Water Year = 2024 plotvalue = 81% pctrecov = 81% Water Year = 2024 plotvalue = 77% pctrecov = 77% Water Year = 2023 plotvalue = 84% pctrecov = 84% Water Year = 2023 plotvalue = 79% pctrecov = 79% Water Year = 2022 plotvalue = 112% pctrecov = 112% Water Year = 2022 plotvalue = 91% pctrecov = 91% Water Year = 2022 plotvalue = 91% pctrecov = 91% Water Year = 2022 plotvalue = 90% pctrecov = 90% Water Year = 2022 plotvalue = 87% pctrecov = 87% Water Year = 2022 plotvalue = 87% pctrecov = 87% Water Year = 2022 plotvalue = 86% pctrecov = 86% Water Year = 2022 plotvalue = 85% pctrecov = 85% Water Year = 2022 plotvalue = 84% pctrecov = 84% Water Year = 2022 plotvalue = 80% pctrecov = 80% Water Year = 2021 plotvalue = 118% pctrecov = 118% Water Year = 2019 plotvalue = 123% pctrecov = 123% Water Year = 2019 plotvalue = 88% pctrecov = 88% Water Year = 2017 plotvalue = 91% pctrecov = 91% Water Year = 2017 plotvalue = 90% pctrecov = 90% Water Year = 2017 plotvalue = 90% pctrecov = 90% Water Year = 2017 plotvalue = 89% pctrecov = 89% Water Year = 2017 plotvalue = 84% pctrecov = 84% Water Year = 2017 plotvalue = 79% pctrecov = 79% Water Year = 2016 plotvalue = 126% pctrecov = 126% Water Year = 2016 plotvalue = 70% pctrecov = 1% Water Year = 2016 plotvalue = 70% pctrecov = 24% Water Year = 2015 plotvalue = 123% pctrecov = 123% Water Year = 2015 plotvalue = 130% pctrecov = 152% Water Year = 2015 plotvalue = 130% pctrecov = 141% Water Year = 2015 plotvalue = 130% pctrecov = 324% Water Year = 2015 plotvalue = 73% pctrecov = 73% Water Year = 2015 plotvalue = 73% pctrecov = 73% Water Year = 2014 plotvalue = 129% pctrecov = 129% Water Year = 2014 plotvalue = 70% pctrecov = 56% Water Year = 2014 plotvalue = 70% pctrecov = 56% Water Year = 2014 plotvalue = 70% pctrecov = 52% Water Year = 2013 plotvalue = 70% pctrecov = 51% Water Year = 2012 plotvalue = 115% pctrecov = 115% Water Year = 2012 plotvalue = 116% pctrecov = 116% Water Year = 2012 plotvalue = 130% pctrecov = 208% Water Year = 2012 plotvalue = 87% pctrecov = 87% Water Year = 2012 plotvalue = 82% pctrecov = 82% Water Year = 2012 plotvalue = 70% pctrecov = 16% Water Year = 2012 plotvalue = 70% pctrecov = 2% Water Year = 2011 plotvalue = 87% pctrecov = 87% Water Year = 2011 plotvalue = 86% pctrecov = 86% Water Year = 2011 plotvalue = 70% pctrecov = 1% Water Year = 2024 First Quartile = 100% Median = 105% Third Quartile = 108% Number of Observations = 73 Water Year = 2024 First Quartile = 100% Median = 105% Third Quartile = 108% Number of Observations = 73 Water Year = 2024 First Quartile = 100% Median = 105% Third Quartile = 108% Number of Observations = 73 Water Year = 2024 First Quartile = 100% Median = 105% Third Quartile = 108% Number of Observations = 73 Water Year = 2024 First Quartile = 100% Median = 105% Third Quartile = 108% Number of Observations = 73 Water Year = 2024 First Quartile = 100% Median = 105% Third Quartile = 108% Number of Observations = 73 Water Year = 2024 First Quartile = 100% Median = 105% Third Quartile = 108% Number of Observations = 73 Water Year = 2024 First Quartile = 100% Median = 105% Third Quartile = 108% Number of Observations = 73 Water Year = 2023 First Quartile = 100% Median = 105% Third Quartile = 108% Number of Observations = 89 Water Year = 2023 First Quartile = 100% Median = 105% Third Quartile = 108% Number of Observations = 89 Water Year = 2023 First Quartile = 100% Median = 105% Third Quartile = 108% Number of Observations = 89 Water Year = 2023 First Quartile = 100% Median = 105% Third Quartile = 108% Number of Observations = 89 Water Year = 2023 First Quartile = 100% Median = 105% Third Quartile = 108% Number of Observations = 89 Water Year = 2023 First Quartile = 100% Median = 105% Third Quartile = 108% Number of Observations = 89 Water Year = 2023 First Quartile = 100% Median = 105% Third Quartile = 108% Number of Observations = 89 Water Year = 2023 First Quartile = 100% Median = 105% Third Quartile = 108% Number of Observations = 89 Water Year = 2022 First Quartile = 99% Median = 102% Third Quartile = 104% Number of Observations = 89 Water Year = 2022 First Quartile = 99% Median = 102% Third Quartile = 104% Number of Observations = 89 Water Year = 2022 First Quartile = 99% Median = 102% Third Quartile = 104% Number of Observations = 89 Water Year = 2022 First Quartile = 99% Median = 102% Third Quartile = 104% Number of Observations = 89 Water Year = 2022 First Quartile = 99% Median = 102% Third Quartile = 104% Number of Observations = 89 Water Year = 2022 First Quartile = 99% Median = 102% Third Quartile = 104% Number of Observations = 89 Water Year = 2022 First Quartile = 99% Median = 102% Third Quartile = 104% Number of Observations = 89 Water Year = 2022 First Quartile = 99% Median = 102% Third Quartile = 104% Number of Observations = 89 Water Year = 2021 First Quartile = 101% Median = 103% Third Quartile = 107% Number of Observations = 90 Water Year = 2021 First Quartile = 101% Median = 103% Third Quartile = 107% Number of Observations = 90 Water Year = 2021 First Quartile = 101% Median = 103% Third Quartile = 107% Number of Observations = 90 Water Year = 2021 First Quartile = 101% Median = 103% Third Quartile = 107% Number of Observations = 90 Water Year = 2021 First Quartile = 101% Median = 103% Third Quartile = 107% Number of Observations = 90 Water Year = 2021 First Quartile = 101% Median = 103% Third Quartile = 107% Number of Observations = 90 Water Year = 2021 First Quartile = 101% Median = 103% Third Quartile = 107% Number of Observations = 90 Water Year = 2021 First Quartile = 101% Median = 103% Third Quartile = 107% Number of Observations = 90 Water Year = 2020 First Quartile = 102% Median = 107% Third Quartile = 111% Number of Observations = 86 Water Year = 2020 First Quartile = 102% Median = 107% Third Quartile = 111% Number of Observations = 86 Water Year = 2020 First Quartile = 102% Median = 107% Third Quartile = 111% Number of Observations = 86 Water Year = 2020 First Quartile = 102% Median = 107% Third Quartile = 111% Number of Observations = 86 Water Year = 2020 First Quartile = 102% Median = 107% Third Quartile = 111% Number of Observations = 86 Water Year = 2020 First Quartile = 102% Median = 107% Third Quartile = 111% Number of Observations = 86 Water Year = 2020 First Quartile = 102% Median = 107% Third Quartile = 111% Number of Observations = 86 Water Year = 2020 First Quartile = 102% Median = 107% Third Quartile = 111% Number of Observations = 86 Water Year = 2019 First Quartile = 98% Median = 101% Third Quartile = 103% Number of Observations = 78 Water Year = 2019 First Quartile = 98% Median = 101% Third Quartile = 103% Number of Observations = 78 Water Year = 2019 First Quartile = 98% Median = 101% Third Quartile = 103% Number of Observations = 78 Water Year = 2019 First Quartile = 98% Median = 101% Third Quartile = 103% Number of Observations = 78 Water Year = 2019 First Quartile = 98% Median = 101% Third Quartile = 103% Number of Observations = 78 Water Year = 2019 First Quartile = 98% Median = 101% Third Quartile = 103% Number of Observations = 78 Water Year = 2019 First Quartile = 98% Median = 101% Third Quartile = 103% Number of Observations = 78 Water Year = 2019 First Quartile = 98% Median = 101% Third Quartile = 103% Number of Observations = 78 Water Year = 2017 First Quartile = 102% Median = 105% Third Quartile = 109% Number of Observations = 90 Water Year = 2017 First Quartile = 102% Median = 105% Third Quartile = 109% Number of Observations = 90 Water Year = 2017 First Quartile = 102% Median = 105% Third Quartile = 109% Number of Observations = 90 Water Year = 2017 First Quartile = 102% Median = 105% Third Quartile = 109% Number of Observations = 90 Water Year = 2017 First Quartile = 102% Median = 105% Third Quartile = 109% Number of Observations = 90 Water Year = 2017 First Quartile = 102% Median = 105% Third Quartile = 109% Number of Observations = 90 Water Year = 2017 First Quartile = 102% Median = 105% Third Quartile = 109% Number of Observations = 90 Water Year = 2017 First Quartile = 102% Median = 105% Third Quartile = 109% Number of Observations = 90 Water Year = 2016 First Quartile = 94% Median = 100% Third Quartile = 104% Number of Observations = 90 Water Year = 2016 First Quartile = 94% Median = 100% Third Quartile = 104% Number of Observations = 90 Water Year = 2016 First Quartile = 94% Median = 100% Third Quartile = 104% Number of Observations = 90 Water Year = 2016 First Quartile = 94% Median = 100% Third Quartile = 104% Number of Observations = 90 Water Year = 2016 First Quartile = 94% Median = 100% Third Quartile = 104% Number of Observations = 90 Water Year = 2016 First Quartile = 94% Median = 100% Third Quartile = 104% Number of Observations = 90 Water Year = 2016 First Quartile = 94% Median = 100% Third Quartile = 104% Number of Observations = 90 Water Year = 2016 First Quartile = 94% Median = 100% Third Quartile = 104% Number of Observations = 90 Water Year = 2015 First Quartile = 93% Median = 99% Third Quartile = 103% Number of Observations = 90 Water Year = 2015 First Quartile = 93% Median = 99% Third Quartile = 103% Number of Observations = 90 Water Year = 2015 First Quartile = 93% Median = 99% Third Quartile = 103% Number of Observations = 90 Water Year = 2015 First Quartile = 93% Median = 99% Third Quartile = 103% Number of Observations = 90 Water Year = 2015 First Quartile = 93% Median = 99% Third Quartile = 103% Number of Observations = 90 Water Year = 2015 First Quartile = 93% Median = 99% Third Quartile = 103% Number of Observations = 90 Water Year = 2015 First Quartile = 93% Median = 99% Third Quartile = 103% Number of Observations = 90 Water Year = 2015 First Quartile = 93% Median = 99% Third Quartile = 103% Number of Observations = 90 Water Year = 2014 First Quartile = 90% Median = 96% Third Quartile = 102% Number of Observations = 83 Water Year = 2014 First Quartile = 90% Median = 96% Third Quartile = 102% Number of Observations = 83 Water Year = 2014 First Quartile = 90% Median = 96% Third Quartile = 102% Number of Observations = 83 Water Year = 2014 First Quartile = 90% Median = 96% Third Quartile = 102% Number of Observations = 83 Water Year = 2014 First Quartile = 90% Median = 96% Third Quartile = 102% Number of Observations = 83 Water Year = 2014 First Quartile = 90% Median = 96% Third Quartile = 102% Number of Observations = 83 Water Year = 2014 First Quartile = 90% Median = 96% Third Quartile = 102% Number of Observations = 83 Water Year = 2014 First Quartile = 90% Median = 96% Third Quartile = 102% Number of Observations = 83 Water Year = 2013 First Quartile = 100% Median = 103% Third Quartile = 105% Number of Observations = 108 Water Year = 2013 First Quartile = 100% Median = 103% Third Quartile = 105% Number of Observations = 108 Water Year = 2013 First Quartile = 100% Median = 103% Third Quartile = 105% Number of Observations = 108 Water Year = 2013 First Quartile = 100% Median = 103% Third Quartile = 105% Number of Observations = 108 Water Year = 2013 First Quartile = 100% Median = 103% Third Quartile = 105% Number of Observations = 108 Water Year = 2013 First Quartile = 100% Median = 103% Third Quartile = 105% Number of Observations = 108 Water Year = 2013 First Quartile = 100% Median = 103% Third Quartile = 105% Number of Observations = 108 Water Year = 2013 First Quartile = 100% Median = 103% Third Quartile = 105% Number of Observations = 108 Water Year = 2012 First Quartile = 98% Median = 101% Third Quartile = 104% Number of Observations = 132 Water Year = 2012 First Quartile = 98% Median = 101% Third Quartile = 104% Number of Observations = 132 Water Year = 2012 First Quartile = 98% Median = 101% Third Quartile = 104% Number of Observations = 132 Water Year = 2012 First Quartile = 98% Median = 101% Third Quartile = 104% Number of Observations = 132 Water Year = 2012 First Quartile = 98% Median = 101% Third Quartile = 104% Number of Observations = 132 Water Year = 2012 First Quartile = 98% Median = 101% Third Quartile = 104% Number of Observations = 132 Water Year = 2012 First Quartile = 98% Median = 101% Third Quartile = 104% Number of Observations = 132 Water Year = 2012 First Quartile = 98% Median = 101% Third Quartile = 104% Number of Observations = 132 Water Year = 2011 First Quartile = 98% Median = 100% Third Quartile = 103% Number of Observations = 131 Water Year = 2011 First Quartile = 98% Median = 100% Third Quartile = 103% Number of Observations = 131 Water Year = 2011 First Quartile = 98% Median = 100% Third Quartile = 103% Number of Observations = 131 Water Year = 2011 First Quartile = 98% Median = 100% Third Quartile = 103% Number of Observations = 131 Water Year = 2011 First Quartile = 98% Median = 100% Third Quartile = 103% Number of Observations = 131 Water Year = 2011 First Quartile = 98% Median = 100% Third Quartile = 103% Number of Observations = 131 Water Year = 2011 First Quartile = 98% Median = 100% Third Quartile = 103% Number of Observations = 131 Water Year = 2011 First Quartile = 98% Median = 100% Third Quartile = 103% Number of Observations = 131 Water Year = 2010 First Quartile = 99% Median = 104% Third Quartile = 108% Number of Observations = 132 Water Year = 2010 First Quartile = 99% Median = 104% Third Quartile = 108% Number of Observations = 132 Water Year = 2010 First Quartile = 99% Median = 104% Third Quartile = 108% Number of Observations = 132 Water Year = 2010 First Quartile = 99% Median = 104% Third Quartile = 108% Number of Observations = 132 Water Year = 2010 First Quartile = 99% Median = 104% Third Quartile = 108% Number of Observations = 132 Water Year = 2010 First Quartile = 99% Median = 104% Third Quartile = 108% Number of Observations = 132 Water Year = 2010 First Quartile = 99% Median = 104% Third Quartile = 108% Number of Observations = 132 Water Year = 2010 First Quartile = 99% Median = 104% Third Quartile = 108% Number of Observations = 132 Y = 1
The SGPlot Procedure

Percent Recovery Statistics for Arsenic, fltd, cICP-MS

Analyte Parm-meth Code Water Year # of
Samples		 25th Pctl 50th Pctl
(Median)		 75th Pctl
Arsenic, fltd, cICP-MS 01000PLM10 2010 132 99.2% 104.3% 108.5%
    2011 131 97.7% 100.2% 102.9%
    2012 132 97.6% 101.1% 104.2%
    2013 108 99.9% 103.0% 105.1%
    2014 83 90.0% 96.1% 102.4%
    2015 90 92.7% 98.7% 103.2%
    2016 90 94.5% 100.3% 104.0%
    2017 90 102.4% 105.5% 109.0%
    2019 78 97.9% 100.6% 103.3%
    2020 86 102.4% 107.4% 111.5%
    2021 90 100.6% 103.4% 107.0%
    2022 89 98.7% 101.9% 103.6%
    2023 89 99.6% 104.5% 107.6%
    2024 73 99.6% 104.7% 107.9%

Hover over boxplot or outliers for additional information
Chart generated 03/27/2025
Charts and data secured from this U.S. Geological Survey (USGS) web page (identified as IBSP) have not received official USGS approval and as such are provisional and subject to revision. The charts and data are released on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use.


- Arsenic, unfltd, cICP-MS, recov -
Lab: NWQL, PCode: 01002, MCode: PLM11
Analysis Dates: 10/05/09 through 04/30/15
Open Data Set
Boxplot Description

Water Year = 2014 plotvalue = 130% pctrecov = 131% Water Year = 2014 plotvalue = 130% pctrecov = 137% Water Year = 2014 plotvalue = 130% pctrecov = 162% Water Year = 2014 plotvalue = 86% pctrecov = 86% Water Year = 2013 plotvalue = 113% pctrecov = 113% Water Year = 2013 plotvalue = 113% pctrecov = 113% Water Year = 2013 plotvalue = 113% pctrecov = 113% Water Year = 2013 plotvalue = 119% pctrecov = 119% Water Year = 2012 plotvalue = 128% pctrecov = 128% Water Year = 2012 plotvalue = 129% pctrecov = 129% Water Year = 2012 plotvalue = 130% pctrecov = 257% Water Year = 2012 plotvalue = 130% pctrecov = 257% Water Year = 2012 plotvalue = 85% pctrecov = 85% Water Year = 2010 plotvalue = 116% pctrecov = 116% Water Year = 2010 plotvalue = 117% pctrecov = 117% Water Year = 2015 First Quartile = 101% Median = 106% Third Quartile = 113% Number of Observations = 39 Water Year = 2015 First Quartile = 101% Median = 106% Third Quartile = 113% Number of Observations = 39 Water Year = 2015 First Quartile = 101% Median = 106% Third Quartile = 113% Number of Observations = 39 Water Year = 2015 First Quartile = 101% Median = 106% Third Quartile = 113% Number of Observations = 39 Water Year = 2015 First Quartile = 101% Median = 106% Third Quartile = 113% Number of Observations = 39 Water Year = 2015 First Quartile = 101% Median = 106% Third Quartile = 113% Number of Observations = 39 Water Year = 2015 First Quartile = 101% Median = 106% Third Quartile = 113% Number of Observations = 39 Water Year = 2015 First Quartile = 101% Median = 106% Third Quartile = 113% Number of Observations = 39 Water Year = 2014 First Quartile = 99% Median = 103% Third Quartile = 108% Number of Observations = 70 Water Year = 2014 First Quartile = 99% Median = 103% Third Quartile = 108% Number of Observations = 70 Water Year = 2014 First Quartile = 99% Median = 103% Third Quartile = 108% Number of Observations = 70 Water Year = 2014 First Quartile = 99% Median = 103% Third Quartile = 108% Number of Observations = 70 Water Year = 2014 First Quartile = 99% Median = 103% Third Quartile = 108% Number of Observations = 70 Water Year = 2014 First Quartile = 99% Median = 103% Third Quartile = 108% Number of Observations = 70 Water Year = 2014 First Quartile = 99% Median = 103% Third Quartile = 108% Number of Observations = 70 Water Year = 2014 First Quartile = 99% Median = 103% Third Quartile = 108% Number of Observations = 70 Water Year = 2013 First Quartile = 98% Median = 100% Third Quartile = 104% Number of Observations = 108 Water Year = 2013 First Quartile = 98% Median = 100% Third Quartile = 104% Number of Observations = 108 Water Year = 2013 First Quartile = 98% Median = 100% Third Quartile = 104% Number of Observations = 108 Water Year = 2013 First Quartile = 98% Median = 100% Third Quartile = 104% Number of Observations = 108 Water Year = 2013 First Quartile = 98% Median = 100% Third Quartile = 104% Number of Observations = 108 Water Year = 2013 First Quartile = 98% Median = 100% Third Quartile = 104% Number of Observations = 108 Water Year = 2013 First Quartile = 98% Median = 100% Third Quartile = 104% Number of Observations = 108 Water Year = 2013 First Quartile = 98% Median = 100% Third Quartile = 104% Number of Observations = 108 Water Year = 2012 First Quartile = 98% Median = 101% Third Quartile = 107% Number of Observations = 83 Water Year = 2012 First Quartile = 98% Median = 101% Third Quartile = 107% Number of Observations = 83 Water Year = 2012 First Quartile = 98% Median = 101% Third Quartile = 107% Number of Observations = 83 Water Year = 2012 First Quartile = 98% Median = 101% Third Quartile = 107% Number of Observations = 83 Water Year = 2012 First Quartile = 98% Median = 101% Third Quartile = 107% Number of Observations = 83 Water Year = 2012 First Quartile = 98% Median = 101% Third Quartile = 107% Number of Observations = 83 Water Year = 2012 First Quartile = 98% Median = 101% Third Quartile = 107% Number of Observations = 83 Water Year = 2012 First Quartile = 98% Median = 101% Third Quartile = 107% Number of Observations = 83 Water Year = 2011 First Quartile = 103% Median = 110% Third Quartile = 130% Number of Observations = 130 Water Year = 2011 First Quartile = 103% Median = 110% Third Quartile = 130% Number of Observations = 130 Water Year = 2011 First Quartile = 103% Median = 110% Third Quartile = 130% Number of Observations = 130 Water Year = 2011 First Quartile = 103% Median = 110% Third Quartile = 130% Number of Observations = 130 Water Year = 2011 First Quartile = 103% Median = 110% Third Quartile = 130% Number of Observations = 130 Water Year = 2011 First Quartile = 103% Median = 110% Third Quartile = 130% Number of Observations = 130 Water Year = 2011 First Quartile = 103% Median = 110% Third Quartile = 130% Number of Observations = 130 Water Year = 2011 First Quartile = 103% Median = 110% Third Quartile = 130% Number of Observations = 130 Water Year = 2010 First Quartile = 100% Median = 102% Third Quartile = 106% Number of Observations = 131 Water Year = 2010 First Quartile = 100% Median = 102% Third Quartile = 106% Number of Observations = 131 Water Year = 2010 First Quartile = 100% Median = 102% Third Quartile = 106% Number of Observations = 131 Water Year = 2010 First Quartile = 100% Median = 102% Third Quartile = 106% Number of Observations = 131 Water Year = 2010 First Quartile = 100% Median = 102% Third Quartile = 106% Number of Observations = 131 Water Year = 2010 First Quartile = 100% Median = 102% Third Quartile = 106% Number of Observations = 131 Water Year = 2010 First Quartile = 100% Median = 102% Third Quartile = 106% Number of Observations = 131 Water Year = 2010 First Quartile = 100% Median = 102% Third Quartile = 106% Number of Observations = 131 Water Year = 2009 First Quartile = 106% Median = 107% Third Quartile = 111% Number of Observations = 9 Water Year = 2009 First Quartile = 106% Median = 107% Third Quartile = 111% Number of Observations = 9 Water Year = 2009 First Quartile = 106% Median = 107% Third Quartile = 111% Number of Observations = 9 Water Year = 2009 First Quartile = 106% Median = 107% Third Quartile = 111% Number of Observations = 9 Water Year = 2009 First Quartile = 106% Median = 107% Third Quartile = 111% Number of Observations = 9 Water Year = 2009 First Quartile = 106% Median = 107% Third Quartile = 111% Number of Observations = 9 Water Year = 2009 First Quartile = 106% Median = 107% Third Quartile = 111% Number of Observations = 9 Water Year = 2009 First Quartile = 106% Median = 107% Third Quartile = 111% Number of Observations = 9 Y = 1
The SGPlot Procedure

Percent Recovery Statistics for Arsenic, unfltd, cICP-MS, recov

Analyte Parm-meth Code Water Year # of
Samples		 25th Pctl 50th Pctl
(Median)		 75th Pctl
Arsenic, unfltd, cICP-MS, recov 01002PLM11 2009 9 105.8% 107.0% 110.8%
    2010 131 99.7% 102.3% 105.7%
    2011 130 102.6% 109.8% 130.3%
    2012 83 98.0% 101.0% 106.7%
    2013 108 97.8% 100.3% 103.5%
    2014 70 99.2% 103.2% 108.1%
    2015 39 101.4% 106.0% 112.9%

Hover over boxplot or outliers for additional information
Chart generated 03/27/2025
Charts and data secured from this U.S. Geological Survey (USGS) web page (identified as IBSP) have not received official USGS approval and as such are provisional and subject to revision. The charts and data are released on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use.


- Arsenic, unfltd, cICP-MS, recov -
Lab: NWQL, PCode: 01002, MCode: PLM77
Analysis Dates: 05/12/15 through 09/25/24
Open Data Set
Boxplot Description

Water Year = 2024 plotvalue = 115% pctrecov = 115% Water Year = 2024 plotvalue = 83% pctrecov = 83% Water Year = 2024 plotvalue = 81% pctrecov = 81% Water Year = 2023 plotvalue = 87% pctrecov = 87% Water Year = 2023 plotvalue = 84% pctrecov = 84% Water Year = 2023 plotvalue = 83% pctrecov = 83% Water Year = 2023 plotvalue = 81% pctrecov = 81% Water Year = 2020 plotvalue = 124% pctrecov = 124% Water Year = 2020 plotvalue = 125% pctrecov = 125% Water Year = 2019 plotvalue = 122% pctrecov = 122% Water Year = 2019 plotvalue = 88% pctrecov = 88% Water Year = 2019 plotvalue = 86% pctrecov = 86% Water Year = 2017 plotvalue = 86% pctrecov = 86% Water Year = 2017 plotvalue = 86% pctrecov = 86% Water Year = 2017 plotvalue = 80% pctrecov = 80% Water Year = 2017 plotvalue = 79% pctrecov = 79% Water Year = 2016 plotvalue = 83% pctrecov = 83% Water Year = 2016 plotvalue = 83% pctrecov = 83% Water Year = 2015 plotvalue = 130% pctrecov = 158% Water Year = 2024 First Quartile = 95% Median = 100% Third Quartile = 103% Number of Observations = 42 Water Year = 2024 First Quartile = 95% Median = 100% Third Quartile = 103% Number of Observations = 42 Water Year = 2024 First Quartile = 95% Median = 100% Third Quartile = 103% Number of Observations = 42 Water Year = 2024 First Quartile = 95% Median = 100% Third Quartile = 103% Number of Observations = 42 Water Year = 2024 First Quartile = 95% Median = 100% Third Quartile = 103% Number of Observations = 42 Water Year = 2024 First Quartile = 95% Median = 100% Third Quartile = 103% Number of Observations = 42 Water Year = 2024 First Quartile = 95% Median = 100% Third Quartile = 103% Number of Observations = 42 Water Year = 2024 First Quartile = 95% Median = 100% Third Quartile = 103% Number of Observations = 42 Water Year = 2023 First Quartile = 97% Median = 100% Third Quartile = 104% Number of Observations = 48 Water Year = 2023 First Quartile = 97% Median = 100% Third Quartile = 104% Number of Observations = 48 Water Year = 2023 First Quartile = 97% Median = 100% Third Quartile = 104% Number of Observations = 48 Water Year = 2023 First Quartile = 97% Median = 100% Third Quartile = 104% Number of Observations = 48 Water Year = 2023 First Quartile = 97% Median = 100% Third Quartile = 104% Number of Observations = 48 Water Year = 2023 First Quartile = 97% Median = 100% Third Quartile = 104% Number of Observations = 48 Water Year = 2023 First Quartile = 97% Median = 100% Third Quartile = 104% Number of Observations = 48 Water Year = 2023 First Quartile = 97% Median = 100% Third Quartile = 104% Number of Observations = 48 Water Year = 2022 First Quartile = 96% Median = 102% Third Quartile = 105% Number of Observations = 47 Water Year = 2022 First Quartile = 96% Median = 102% Third Quartile = 105% Number of Observations = 47 Water Year = 2022 First Quartile = 96% Median = 102% Third Quartile = 105% Number of Observations = 47 Water Year = 2022 First Quartile = 96% Median = 102% Third Quartile = 105% Number of Observations = 47 Water Year = 2022 First Quartile = 96% Median = 102% Third Quartile = 105% Number of Observations = 47 Water Year = 2022 First Quartile = 96% Median = 102% Third Quartile = 105% Number of Observations = 47 Water Year = 2022 First Quartile = 96% Median = 102% Third Quartile = 105% Number of Observations = 47 Water Year = 2022 First Quartile = 96% Median = 102% Third Quartile = 105% Number of Observations = 47 Water Year = 2021 First Quartile = 98% Median = 100% Third Quartile = 103% Number of Observations = 48 Water Year = 2021 First Quartile = 98% Median = 100% Third Quartile = 103% Number of Observations = 48 Water Year = 2021 First Quartile = 98% Median = 100% Third Quartile = 103% Number of Observations = 48 Water Year = 2021 First Quartile = 98% Median = 100% Third Quartile = 103% Number of Observations = 48 Water Year = 2021 First Quartile = 98% Median = 100% Third Quartile = 103% Number of Observations = 48 Water Year = 2021 First Quartile = 98% Median = 100% Third Quartile = 103% Number of Observations = 48 Water Year = 2021 First Quartile = 98% Median = 100% Third Quartile = 103% Number of Observations = 48 Water Year = 2021 First Quartile = 98% Median = 100% Third Quartile = 103% Number of Observations = 48 Water Year = 2020 First Quartile = 98% Median = 101% Third Quartile = 105% Number of Observations = 44 Water Year = 2020 First Quartile = 98% Median = 101% Third Quartile = 105% Number of Observations = 44 Water Year = 2020 First Quartile = 98% Median = 101% Third Quartile = 105% Number of Observations = 44 Water Year = 2020 First Quartile = 98% Median = 101% Third Quartile = 105% Number of Observations = 44 Water Year = 2020 First Quartile = 98% Median = 101% Third Quartile = 105% Number of Observations = 44 Water Year = 2020 First Quartile = 98% Median = 101% Third Quartile = 105% Number of Observations = 44 Water Year = 2020 First Quartile = 98% Median = 101% Third Quartile = 105% Number of Observations = 44 Water Year = 2020 First Quartile = 98% Median = 101% Third Quartile = 105% Number of Observations = 44 Water Year = 2019 First Quartile = 100% Median = 104% Third Quartile = 108% Number of Observations = 55 Water Year = 2019 First Quartile = 100% Median = 104% Third Quartile = 108% Number of Observations = 55 Water Year = 2019 First Quartile = 100% Median = 104% Third Quartile = 108% Number of Observations = 55 Water Year = 2019 First Quartile = 100% Median = 104% Third Quartile = 108% Number of Observations = 55 Water Year = 2019 First Quartile = 100% Median = 104% Third Quartile = 108% Number of Observations = 55 Water Year = 2019 First Quartile = 100% Median = 104% Third Quartile = 108% Number of Observations = 55 Water Year = 2019 First Quartile = 100% Median = 104% Third Quartile = 108% Number of Observations = 55 Water Year = 2019 First Quartile = 100% Median = 104% Third Quartile = 108% Number of Observations = 55 Water Year = 2017 First Quartile = 100% Median = 105% Third Quartile = 108% Number of Observations = 90 Water Year = 2017 First Quartile = 100% Median = 105% Third Quartile = 108% Number of Observations = 90 Water Year = 2017 First Quartile = 100% Median = 105% Third Quartile = 108% Number of Observations = 90 Water Year = 2017 First Quartile = 100% Median = 105% Third Quartile = 108% Number of Observations = 90 Water Year = 2017 First Quartile = 100% Median = 105% Third Quartile = 108% Number of Observations = 90 Water Year = 2017 First Quartile = 100% Median = 105% Third Quartile = 108% Number of Observations = 90 Water Year = 2017 First Quartile = 100% Median = 105% Third Quartile = 108% Number of Observations = 90 Water Year = 2017 First Quartile = 100% Median = 105% Third Quartile = 108% Number of Observations = 90 Water Year = 2016 First Quartile = 102% Median = 108% Third Quartile = 114% Number of Observations = 88 Water Year = 2016 First Quartile = 102% Median = 108% Third Quartile = 114% Number of Observations = 88 Water Year = 2016 First Quartile = 102% Median = 108% Third Quartile = 114% Number of Observations = 88 Water Year = 2016 First Quartile = 102% Median = 108% Third Quartile = 114% Number of Observations = 88 Water Year = 2016 First Quartile = 102% Median = 108% Third Quartile = 114% Number of Observations = 88 Water Year = 2016 First Quartile = 102% Median = 108% Third Quartile = 114% Number of Observations = 88 Water Year = 2016 First Quartile = 102% Median = 108% Third Quartile = 114% Number of Observations = 88 Water Year = 2016 First Quartile = 102% Median = 108% Third Quartile = 114% Number of Observations = 88 Water Year = 2015 First Quartile = 105% Median = 108% Third Quartile = 114% Number of Observations = 40 Water Year = 2015 First Quartile = 105% Median = 108% Third Quartile = 114% Number of Observations = 40 Water Year = 2015 First Quartile = 105% Median = 108% Third Quartile = 114% Number of Observations = 40 Water Year = 2015 First Quartile = 105% Median = 108% Third Quartile = 114% Number of Observations = 40 Water Year = 2015 First Quartile = 105% Median = 108% Third Quartile = 114% Number of Observations = 40 Water Year = 2015 First Quartile = 105% Median = 108% Third Quartile = 114% Number of Observations = 40 Water Year = 2015 First Quartile = 105% Median = 108% Third Quartile = 114% Number of Observations = 40 Water Year = 2015 First Quartile = 105% Median = 108% Third Quartile = 114% Number of Observations = 40 Y = 1
The SGPlot Procedure

Percent Recovery Statistics for Arsenic, unfltd, cICP-MS, recov

Analyte Parm-meth Code Water Year # of
Samples		 25th Pctl 50th Pctl
(Median)		 75th Pctl
Arsenic, unfltd, cICP-MS, recov 01002PLM77 2015 40 105.2% 108.0% 114.5%
    2016 88 102.1% 108.4% 114.1%
    2017 90 100.0% 104.8% 107.9%
    2019 55 100.3% 104.0% 108.4%
    2020 44 97.7% 101.2% 105.2%
    2021 48 98.0% 100.4% 102.8%
    2022 47 96.0% 101.7% 104.7%
    2023 48 97.4% 100.3% 104.2%
    2024 42 95.3% 99.8% 102.8%

Hover over boxplot or outliers for additional information
Chart generated 03/27/2025
Charts and data secured from this U.S. Geological Survey (USGS) web page (identified as IBSP) have not received official USGS approval and as such are provisional and subject to revision. The charts and data are released on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use.


- Barium, fltd, ICP-MS -
Lab: NWQL, PCode: 01005, MCode: PLM43
Analysis Dates: 10/09/09 through 09/28/24
Open Data Set
Boxplot Description

Water Year = 2024 plotvalue = 109% pctrecov = 109% Water Year = 2023 plotvalue = 91% pctrecov = 91% Water Year = 2020 plotvalue = 92% pctrecov = 92% Water Year = 2019 plotvalue = 106% pctrecov = 106% Water Year = 2019 plotvalue = 108% pctrecov = 108% Water Year = 2019 plotvalue = 89% pctrecov = 89% Water Year = 2019 plotvalue = 89% pctrecov = 89% Water Year = 2019 plotvalue = 70% pctrecov = 62% Water Year = 2017 plotvalue = 113% pctrecov = 113% Water Year = 2016 plotvalue = 90% pctrecov = 90% Water Year = 2016 plotvalue = 90% pctrecov = 90% Water Year = 2016 plotvalue = 89% pctrecov = 89% Water Year = 2016 plotvalue = 87% pctrecov = 87% Water Year = 2016 plotvalue = 86% pctrecov = 86% Water Year = 2016 plotvalue = 86% pctrecov = 86% Water Year = 2016 plotvalue = 86% pctrecov = 86% Water Year = 2016 plotvalue = 85% pctrecov = 85% Water Year = 2016 plotvalue = 85% pctrecov = 85% Water Year = 2016 plotvalue = 85% pctrecov = 85% Water Year = 2016 plotvalue = 85% pctrecov = 85% Water Year = 2016 plotvalue = 84% pctrecov = 84% Water Year = 2016 plotvalue = 84% pctrecov = 84% Water Year = 2016 plotvalue = 83% pctrecov = 83% Water Year = 2016 plotvalue = 82% pctrecov = 82% Water Year = 2016 plotvalue = 70% pctrecov = 42% Water Year = 2016 plotvalue = 70% pctrecov = 0% Water Year = 2016 plotvalue = 70% pctrecov = 12% Water Year = 2015 plotvalue = 85% pctrecov = 85% Water Year = 2015 plotvalue = 82% pctrecov = 82% Water Year = 2015 plotvalue = 70% pctrecov = 43% Water Year = 2014 plotvalue = 111% pctrecov = 111% Water Year = 2014 plotvalue = 112% pctrecov = 112% Water Year = 2014 plotvalue = 130% pctrecov = 606% Water Year = 2014 plotvalue = 92% pctrecov = 92% Water Year = 2014 plotvalue = 70% pctrecov = 1% Water Year = 2013 plotvalue = 92% pctrecov = 92% Water Year = 2012 plotvalue = 114% pctrecov = 114% Water Year = 2012 plotvalue = 130% pctrecov = 220% Water Year = 2012 plotvalue = 99% pctrecov = 99% Water Year = 2012 plotvalue = 95% pctrecov = 95% Water Year = 2012 plotvalue = 70% pctrecov = 52% Water Year = 2011 plotvalue = 130% pctrecov = 191% Water Year = 2011 plotvalue = 70% pctrecov = 26% Water Year = 2010 plotvalue = 118% pctrecov = 118% Water Year = 2010 plotvalue = 92% pctrecov = 92% Water Year = 2024 First Quartile = 99% Median = 100% Third Quartile = 101% Number of Observations = 73 Water Year = 2024 First Quartile = 99% Median = 100% Third Quartile = 101% Number of Observations = 73 Water Year = 2024 First Quartile = 99% Median = 100% Third Quartile = 101% Number of Observations = 73 Water Year = 2024 First Quartile = 99% Median = 100% Third Quartile = 101% Number of Observations = 73 Water Year = 2024 First Quartile = 99% Median = 100% Third Quartile = 101% Number of Observations = 73 Water Year = 2024 First Quartile = 99% Median = 100% Third Quartile = 101% Number of Observations = 73 Water Year = 2024 First Quartile = 99% Median = 100% Third Quartile = 101% Number of Observations = 73 Water Year = 2024 First Quartile = 99% Median = 100% Third Quartile = 101% Number of Observations = 73 Water Year = 2023 First Quartile = 99% Median = 100% Third Quartile = 103% Number of Observations = 89 Water Year = 2023 First Quartile = 99% Median = 100% Third Quartile = 103% Number of Observations = 89 Water Year = 2023 First Quartile = 99% Median = 100% Third Quartile = 103% Number of Observations = 89 Water Year = 2023 First Quartile = 99% Median = 100% Third Quartile = 103% Number of Observations = 89 Water Year = 2023 First Quartile = 99% Median = 100% Third Quartile = 103% Number of Observations = 89 Water Year = 2023 First Quartile = 99% Median = 100% Third Quartile = 103% Number of Observations = 89 Water Year = 2023 First Quartile = 99% Median = 100% Third Quartile = 103% Number of Observations = 89 Water Year = 2023 First Quartile = 99% Median = 100% Third Quartile = 103% Number of Observations = 89 Water Year = 2022 First Quartile = 99% Median = 101% Third Quartile = 102% Number of Observations = 89 Water Year = 2022 First Quartile = 99% Median = 101% Third Quartile = 102% Number of Observations = 89 Water Year = 2022 First Quartile = 99% Median = 101% Third Quartile = 102% Number of Observations = 89 Water Year = 2022 First Quartile = 99% Median = 101% Third Quartile = 102% Number of Observations = 89 Water Year = 2022 First Quartile = 99% Median = 101% Third Quartile = 102% Number of Observations = 89 Water Year = 2022 First Quartile = 99% Median = 101% Third Quartile = 102% Number of Observations = 89 Water Year = 2022 First Quartile = 99% Median = 101% Third Quartile = 102% Number of Observations = 89 Water Year = 2022 First Quartile = 99% Median = 101% Third Quartile = 102% Number of Observations = 89 Water Year = 2021 First Quartile = 97% Median = 99% Third Quartile = 101% Number of Observations = 90 Water Year = 2021 First Quartile = 97% Median = 99% Third Quartile = 101% Number of Observations = 90 Water Year = 2021 First Quartile = 97% Median = 99% Third Quartile = 101% Number of Observations = 90 Water Year = 2021 First Quartile = 97% Median = 99% Third Quartile = 101% Number of Observations = 90 Water Year = 2021 First Quartile = 97% Median = 99% Third Quartile = 101% Number of Observations = 90 Water Year = 2021 First Quartile = 97% Median = 99% Third Quartile = 101% Number of Observations = 90 Water Year = 2021 First Quartile = 97% Median = 99% Third Quartile = 101% Number of Observations = 90 Water Year = 2021 First Quartile = 97% Median = 99% Third Quartile = 101% Number of Observations = 90 Water Year = 2020 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 86 Water Year = 2020 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 86 Water Year = 2020 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 86 Water Year = 2020 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 86 Water Year = 2020 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 86 Water Year = 2020 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 86 Water Year = 2020 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 86 Water Year = 2020 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 86 Water Year = 2019 First Quartile = 96% Median = 99% Third Quartile = 100% Number of Observations = 78 Water Year = 2019 First Quartile = 96% Median = 99% Third Quartile = 100% Number of Observations = 78 Water Year = 2019 First Quartile = 96% Median = 99% Third Quartile = 100% Number of Observations = 78 Water Year = 2019 First Quartile = 96% Median = 99% Third Quartile = 100% Number of Observations = 78 Water Year = 2019 First Quartile = 96% Median = 99% Third Quartile = 100% Number of Observations = 78 Water Year = 2019 First Quartile = 96% Median = 99% Third Quartile = 100% Number of Observations = 78 Water Year = 2019 First Quartile = 96% Median = 99% Third Quartile = 100% Number of Observations = 78 Water Year = 2019 First Quartile = 96% Median = 99% Third Quartile = 100% Number of Observations = 78 Water Year = 2017 First Quartile = 100% Median = 103% Third Quartile = 105% Number of Observations = 90 Water Year = 2017 First Quartile = 100% Median = 103% Third Quartile = 105% Number of Observations = 90 Water Year = 2017 First Quartile = 100% Median = 103% Third Quartile = 105% Number of Observations = 90 Water Year = 2017 First Quartile = 100% Median = 103% Third Quartile = 105% Number of Observations = 90 Water Year = 2017 First Quartile = 100% Median = 103% Third Quartile = 105% Number of Observations = 90 Water Year = 2017 First Quartile = 100% Median = 103% Third Quartile = 105% Number of Observations = 90 Water Year = 2017 First Quartile = 100% Median = 103% Third Quartile = 105% Number of Observations = 90 Water Year = 2017 First Quartile = 100% Median = 103% Third Quartile = 105% Number of Observations = 90 Water Year = 2016 First Quartile = 99% Median = 101% Third Quartile = 104% Number of Observations = 90 Water Year = 2016 First Quartile = 99% Median = 101% Third Quartile = 104% Number of Observations = 90 Water Year = 2016 First Quartile = 99% Median = 101% Third Quartile = 104% Number of Observations = 90 Water Year = 2016 First Quartile = 99% Median = 101% Third Quartile = 104% Number of Observations = 90 Water Year = 2016 First Quartile = 99% Median = 101% Third Quartile = 104% Number of Observations = 90 Water Year = 2016 First Quartile = 99% Median = 101% Third Quartile = 104% Number of Observations = 90 Water Year = 2016 First Quartile = 99% Median = 101% Third Quartile = 104% Number of Observations = 90 Water Year = 2016 First Quartile = 99% Median = 101% Third Quartile = 104% Number of Observations = 90 Water Year = 2015 First Quartile = 96% Median = 101% Third Quartile = 103% Number of Observations = 90 Water Year = 2015 First Quartile = 96% Median = 101% Third Quartile = 103% Number of Observations = 90 Water Year = 2015 First Quartile = 96% Median = 101% Third Quartile = 103% Number of Observations = 90 Water Year = 2015 First Quartile = 96% Median = 101% Third Quartile = 103% Number of Observations = 90 Water Year = 2015 First Quartile = 96% Median = 101% Third Quartile = 103% Number of Observations = 90 Water Year = 2015 First Quartile = 96% Median = 101% Third Quartile = 103% Number of Observations = 90 Water Year = 2015 First Quartile = 96% Median = 101% Third Quartile = 103% Number of Observations = 90 Water Year = 2015 First Quartile = 96% Median = 101% Third Quartile = 103% Number of Observations = 90 Water Year = 2014 First Quartile = 99% Median = 100% Third Quartile = 102% Number of Observations = 83 Water Year = 2014 First Quartile = 99% Median = 100% Third Quartile = 102% Number of Observations = 83 Water Year = 2014 First Quartile = 99% Median = 100% Third Quartile = 102% Number of Observations = 83 Water Year = 2014 First Quartile = 99% Median = 100% Third Quartile = 102% Number of Observations = 83 Water Year = 2014 First Quartile = 99% Median = 100% Third Quartile = 102% Number of Observations = 83 Water Year = 2014 First Quartile = 99% Median = 100% Third Quartile = 102% Number of Observations = 83 Water Year = 2014 First Quartile = 99% Median = 100% Third Quartile = 102% Number of Observations = 83 Water Year = 2014 First Quartile = 99% Median = 100% Third Quartile = 102% Number of Observations = 83 Water Year = 2013 First Quartile = 102% Median = 106% Third Quartile = 108% Number of Observations = 108 Water Year = 2013 First Quartile = 102% Median = 106% Third Quartile = 108% Number of Observations = 108 Water Year = 2013 First Quartile = 102% Median = 106% Third Quartile = 108% Number of Observations = 108 Water Year = 2013 First Quartile = 102% Median = 106% Third Quartile = 108% Number of Observations = 108 Water Year = 2013 First Quartile = 102% Median = 106% Third Quartile = 108% Number of Observations = 108 Water Year = 2013 First Quartile = 102% Median = 106% Third Quartile = 108% Number of Observations = 108 Water Year = 2013 First Quartile = 102% Median = 106% Third Quartile = 108% Number of Observations = 108 Water Year = 2013 First Quartile = 102% Median = 106% Third Quartile = 108% Number of Observations = 108 Water Year = 2012 First Quartile = 105% Median = 106% Third Quartile = 108% Number of Observations = 132 Water Year = 2012 First Quartile = 105% Median = 106% Third Quartile = 108% Number of Observations = 132 Water Year = 2012 First Quartile = 105% Median = 106% Third Quartile = 108% Number of Observations = 132 Water Year = 2012 First Quartile = 105% Median = 106% Third Quartile = 108% Number of Observations = 132 Water Year = 2012 First Quartile = 105% Median = 106% Third Quartile = 108% Number of Observations = 132 Water Year = 2012 First Quartile = 105% Median = 106% Third Quartile = 108% Number of Observations = 132 Water Year = 2012 First Quartile = 105% Median = 106% Third Quartile = 108% Number of Observations = 132 Water Year = 2012 First Quartile = 105% Median = 106% Third Quartile = 108% Number of Observations = 132 Water Year = 2011 First Quartile = 97% Median = 99% Third Quartile = 103% Number of Observations = 131 Water Year = 2011 First Quartile = 97% Median = 99% Third Quartile = 103% Number of Observations = 131 Water Year = 2011 First Quartile = 97% Median = 99% Third Quartile = 103% Number of Observations = 131 Water Year = 2011 First Quartile = 97% Median = 99% Third Quartile = 103% Number of Observations = 131 Water Year = 2011 First Quartile = 97% Median = 99% Third Quartile = 103% Number of Observations = 131 Water Year = 2011 First Quartile = 97% Median = 99% Third Quartile = 103% Number of Observations = 131 Water Year = 2011 First Quartile = 97% Median = 99% Third Quartile = 103% Number of Observations = 131 Water Year = 2011 First Quartile = 97% Median = 99% Third Quartile = 103% Number of Observations = 131 Water Year = 2010 First Quartile = 99% Median = 102% Third Quartile = 104% Number of Observations = 132 Water Year = 2010 First Quartile = 99% Median = 102% Third Quartile = 104% Number of Observations = 132 Water Year = 2010 First Quartile = 99% Median = 102% Third Quartile = 104% Number of Observations = 132 Water Year = 2010 First Quartile = 99% Median = 102% Third Quartile = 104% Number of Observations = 132 Water Year = 2010 First Quartile = 99% Median = 102% Third Quartile = 104% Number of Observations = 132 Water Year = 2010 First Quartile = 99% Median = 102% Third Quartile = 104% Number of Observations = 132 Water Year = 2010 First Quartile = 99% Median = 102% Third Quartile = 104% Number of Observations = 132 Water Year = 2010 First Quartile = 99% Median = 102% Third Quartile = 104% Number of Observations = 132 Y = 1
The SGPlot Procedure

Percent Recovery Statistics for Barium, fltd, ICP-MS

Analyte Parm-meth Code Water Year # of
Samples		 25th Pctl 50th Pctl
(Median)		 75th Pctl
Barium, fltd, ICP-MS 01005PLM43 2010 132 99.2% 101.8% 104.1%
    2011 131 96.8% 99.5% 103.2%
    2012 132 104.6% 106.0% 108.1%
    2013 108 102.4% 105.8% 108.2%
    2014 83 98.5% 100.0% 102.5%
    2015 90 96.0% 100.8% 103.2%
    2016 90 98.7% 101.3% 103.7%
    2017 90 100.1% 102.8% 105.0%
    2019 78 96.4% 99.1% 100.1%
    2020 86 99.0% 100.8% 103.2%
    2021 90 97.0% 98.8% 101.2%
    2022 89 99.1% 100.5% 102.4%
    2023 89 98.6% 100.3% 102.5%
    2024 73 98.6% 99.7% 101.1%

Hover over boxplot or outliers for additional information
Chart generated 03/27/2025
Charts and data secured from this U.S. Geological Survey (USGS) web page (identified as IBSP) have not received official USGS approval and as such are provisional and subject to revision. The charts and data are released on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use.


- Barium, fltd, ICP-OES -
Lab: NWQL, PCode: 01005, MCode: PLA11
Analysis Dates: 10/15/09 through 09/18/24
Open Data Set
Boxplot Description

Water Year = 2024 plotvalue = 94% pctrecov = 94% Water Year = 2023 plotvalue = 96% pctrecov = 96% Water Year = 2021 plotvalue = 95% pctrecov = 95% Water Year = 2021 plotvalue = 94% pctrecov = 94% Water Year = 2020 plotvalue = 94% pctrecov = 94% Water Year = 2015 plotvalue = 104% pctrecov = 104% Water Year = 2015 plotvalue = 107% pctrecov = 107% Water Year = 2015 plotvalue = 108% pctrecov = 108% Water Year = 2015 plotvalue = 89% pctrecov = 89% Water Year = 2015 plotvalue = 88% pctrecov = 88% Water Year = 2015 plotvalue = 88% pctrecov = 88% Water Year = 2015 plotvalue = 86% pctrecov = 86% Water Year = 2014 plotvalue = 92% pctrecov = 92% Water Year = 2014 plotvalue = 90% pctrecov = 90% Water Year = 2014 plotvalue = 84% pctrecov = 84% Water Year = 2014 plotvalue = 70% pctrecov = 55% Water Year = 2012 plotvalue = 104% pctrecov = 104% Water Year = 2012 plotvalue = 105% pctrecov = 105% Water Year = 2012 plotvalue = 105% pctrecov = 105% Water Year = 2012 plotvalue = 87% pctrecov = 87% Water Year = 2011 plotvalue = 91% pctrecov = 91% Water Year = 2011 plotvalue = 91% pctrecov = 91% Water Year = 2011 plotvalue = 91% pctrecov = 91% Water Year = 2011 plotvalue = 89% pctrecov = 89% Water Year = 2011 plotvalue = 89% pctrecov = 89% Water Year = 2011 plotvalue = 88% pctrecov = 88% Water Year = 2024 First Quartile = 101% Median = 103% Third Quartile = 105% Number of Observations = 21 Water Year = 2024 First Quartile = 101% Median = 103% Third Quartile = 105% Number of Observations = 21 Water Year = 2024 First Quartile = 101% Median = 103% Third Quartile = 105% Number of Observations = 21 Water Year = 2024 First Quartile = 101% Median = 103% Third Quartile = 105% Number of Observations = 21 Water Year = 2024 First Quartile = 101% Median = 103% Third Quartile = 105% Number of Observations = 21 Water Year = 2024 First Quartile = 101% Median = 103% Third Quartile = 105% Number of Observations = 21 Water Year = 2024 First Quartile = 101% Median = 103% Third Quartile = 105% Number of Observations = 21 Water Year = 2024 First Quartile = 101% Median = 103% Third Quartile = 105% Number of Observations = 21 Water Year = 2023 First Quartile = 101% Median = 101% Third Quartile = 103% Number of Observations = 24 Water Year = 2023 First Quartile = 101% Median = 101% Third Quartile = 103% Number of Observations = 24 Water Year = 2023 First Quartile = 101% Median = 101% Third Quartile = 103% Number of Observations = 24 Water Year = 2023 First Quartile = 101% Median = 101% Third Quartile = 103% Number of Observations = 24 Water Year = 2023 First Quartile = 101% Median = 101% Third Quartile = 103% Number of Observations = 24 Water Year = 2023 First Quartile = 101% Median = 101% Third Quartile = 103% Number of Observations = 24 Water Year = 2023 First Quartile = 101% Median = 101% Third Quartile = 103% Number of Observations = 24 Water Year = 2023 First Quartile = 101% Median = 101% Third Quartile = 103% Number of Observations = 24 Water Year = 2022 First Quartile = 102% Median = 103% Third Quartile = 105% Number of Observations = 24 Water Year = 2022 First Quartile = 102% Median = 103% Third Quartile = 105% Number of Observations = 24 Water Year = 2022 First Quartile = 102% Median = 103% Third Quartile = 105% Number of Observations = 24 Water Year = 2022 First Quartile = 102% Median = 103% Third Quartile = 105% Number of Observations = 24 Water Year = 2022 First Quartile = 102% Median = 103% Third Quartile = 105% Number of Observations = 24 Water Year = 2022 First Quartile = 102% Median = 103% Third Quartile = 105% Number of Observations = 24 Water Year = 2022 First Quartile = 102% Median = 103% Third Quartile = 105% Number of Observations = 24 Water Year = 2022 First Quartile = 102% Median = 103% Third Quartile = 105% Number of Observations = 24 Water Year = 2021 First Quartile = 101% Median = 102% Third Quartile = 103% Number of Observations = 24 Water Year = 2021 First Quartile = 101% Median = 102% Third Quartile = 103% Number of Observations = 24 Water Year = 2021 First Quartile = 101% Median = 102% Third Quartile = 103% Number of Observations = 24 Water Year = 2021 First Quartile = 101% Median = 102% Third Quartile = 103% Number of Observations = 24 Water Year = 2021 First Quartile = 101% Median = 102% Third Quartile = 103% Number of Observations = 24 Water Year = 2021 First Quartile = 101% Median = 102% Third Quartile = 103% Number of Observations = 24 Water Year = 2021 First Quartile = 101% Median = 102% Third Quartile = 103% Number of Observations = 24 Water Year = 2021 First Quartile = 101% Median = 102% Third Quartile = 103% Number of Observations = 24 Water Year = 2020 First Quartile = 100% Median = 103% Third Quartile = 103% Number of Observations = 24 Water Year = 2020 First Quartile = 100% Median = 103% Third Quartile = 103% Number of Observations = 24 Water Year = 2020 First Quartile = 100% Median = 103% Third Quartile = 103% Number of Observations = 24 Water Year = 2020 First Quartile = 100% Median = 103% Third Quartile = 103% Number of Observations = 24 Water Year = 2020 First Quartile = 100% Median = 103% Third Quartile = 103% Number of Observations = 24 Water Year = 2020 First Quartile = 100% Median = 103% Third Quartile = 103% Number of Observations = 24 Water Year = 2020 First Quartile = 100% Median = 103% Third Quartile = 103% Number of Observations = 24 Water Year = 2020 First Quartile = 100% Median = 103% Third Quartile = 103% Number of Observations = 24 Water Year = 2019 First Quartile = 100% Median = 103% Third Quartile = 104% Number of Observations = 20 Water Year = 2019 First Quartile = 100% Median = 103% Third Quartile = 104% Number of Observations = 20 Water Year = 2019 First Quartile = 100% Median = 103% Third Quartile = 104% Number of Observations = 20 Water Year = 2019 First Quartile = 100% Median = 103% Third Quartile = 104% Number of Observations = 20 Water Year = 2019 First Quartile = 100% Median = 103% Third Quartile = 104% Number of Observations = 20 Water Year = 2019 First Quartile = 100% Median = 103% Third Quartile = 104% Number of Observations = 20 Water Year = 2019 First Quartile = 100% Median = 103% Third Quartile = 104% Number of Observations = 20 Water Year = 2019 First Quartile = 100% Median = 103% Third Quartile = 104% Number of Observations = 20 Water Year = 2017 First Quartile = 102% Median = 102% Third Quartile = 104% Number of Observations = 24 Water Year = 2017 First Quartile = 102% Median = 102% Third Quartile = 104% Number of Observations = 24 Water Year = 2017 First Quartile = 102% Median = 102% Third Quartile = 104% Number of Observations = 24 Water Year = 2017 First Quartile = 102% Median = 102% Third Quartile = 104% Number of Observations = 24 Water Year = 2017 First Quartile = 102% Median = 102% Third Quartile = 104% Number of Observations = 24 Water Year = 2017 First Quartile = 102% Median = 102% Third Quartile = 104% Number of Observations = 24 Water Year = 2017 First Quartile = 102% Median = 102% Third Quartile = 104% Number of Observations = 24 Water Year = 2017 First Quartile = 102% Median = 102% Third Quartile = 104% Number of Observations = 24 Water Year = 2016 First Quartile = 96% Median = 99% Third Quartile = 103% Number of Observations = 41 Water Year = 2016 First Quartile = 96% Median = 99% Third Quartile = 103% Number of Observations = 41 Water Year = 2016 First Quartile = 96% Median = 99% Third Quartile = 103% Number of Observations = 41 Water Year = 2016 First Quartile = 96% Median = 99% Third Quartile = 103% Number of Observations = 41 Water Year = 2016 First Quartile = 96% Median = 99% Third Quartile = 103% Number of Observations = 41 Water Year = 2016 First Quartile = 96% Median = 99% Third Quartile = 103% Number of Observations = 41 Water Year = 2016 First Quartile = 96% Median = 99% Third Quartile = 103% Number of Observations = 41 Water Year = 2016 First Quartile = 96% Median = 99% Third Quartile = 103% Number of Observations = 41 Water Year = 2015 First Quartile = 95% Median = 96% Third Quartile = 99% Number of Observations = 42 Water Year = 2015 First Quartile = 95% Median = 96% Third Quartile = 99% Number of Observations = 42 Water Year = 2015 First Quartile = 95% Median = 96% Third Quartile = 99% Number of Observations = 42 Water Year = 2015 First Quartile = 95% Median = 96% Third Quartile = 99% Number of Observations = 42 Water Year = 2015 First Quartile = 95% Median = 96% Third Quartile = 99% Number of Observations = 42 Water Year = 2015 First Quartile = 95% Median = 96% Third Quartile = 99% Number of Observations = 42 Water Year = 2015 First Quartile = 95% Median = 96% Third Quartile = 99% Number of Observations = 42 Water Year = 2015 First Quartile = 95% Median = 96% Third Quartile = 99% Number of Observations = 42 Water Year = 2014 First Quartile = 97% Median = 99% Third Quartile = 100% Number of Observations = 46 Water Year = 2014 First Quartile = 97% Median = 99% Third Quartile = 100% Number of Observations = 46 Water Year = 2014 First Quartile = 97% Median = 99% Third Quartile = 100% Number of Observations = 46 Water Year = 2014 First Quartile = 97% Median = 99% Third Quartile = 100% Number of Observations = 46 Water Year = 2014 First Quartile = 97% Median = 99% Third Quartile = 100% Number of Observations = 46 Water Year = 2014 First Quartile = 97% Median = 99% Third Quartile = 100% Number of Observations = 46 Water Year = 2014 First Quartile = 97% Median = 99% Third Quartile = 100% Number of Observations = 46 Water Year = 2014 First Quartile = 97% Median = 99% Third Quartile = 100% Number of Observations = 46 Water Year = 2013 First Quartile = 95% Median = 98% Third Quartile = 100% Number of Observations = 42 Water Year = 2013 First Quartile = 95% Median = 98% Third Quartile = 100% Number of Observations = 42 Water Year = 2013 First Quartile = 95% Median = 98% Third Quartile = 100% Number of Observations = 42 Water Year = 2013 First Quartile = 95% Median = 98% Third Quartile = 100% Number of Observations = 42 Water Year = 2013 First Quartile = 95% Median = 98% Third Quartile = 100% Number of Observations = 42 Water Year = 2013 First Quartile = 95% Median = 98% Third Quartile = 100% Number of Observations = 42 Water Year = 2013 First Quartile = 95% Median = 98% Third Quartile = 100% Number of Observations = 42 Water Year = 2013 First Quartile = 95% Median = 98% Third Quartile = 100% Number of Observations = 42 Water Year = 2012 First Quartile = 96% Median = 97% Third Quartile = 99% Number of Observations = 42 Water Year = 2012 First Quartile = 96% Median = 97% Third Quartile = 99% Number of Observations = 42 Water Year = 2012 First Quartile = 96% Median = 97% Third Quartile = 99% Number of Observations = 42 Water Year = 2012 First Quartile = 96% Median = 97% Third Quartile = 99% Number of Observations = 42 Water Year = 2012 First Quartile = 96% Median = 97% Third Quartile = 99% Number of Observations = 42 Water Year = 2012 First Quartile = 96% Median = 97% Third Quartile = 99% Number of Observations = 42 Water Year = 2012 First Quartile = 96% Median = 97% Third Quartile = 99% Number of Observations = 42 Water Year = 2012 First Quartile = 96% Median = 97% Third Quartile = 99% Number of Observations = 42 Water Year = 2011 First Quartile = 96% Median = 98% Third Quartile = 99% Number of Observations = 41 Water Year = 2011 First Quartile = 96% Median = 98% Third Quartile = 99% Number of Observations = 41 Water Year = 2011 First Quartile = 96% Median = 98% Third Quartile = 99% Number of Observations = 41 Water Year = 2011 First Quartile = 96% Median = 98% Third Quartile = 99% Number of Observations = 41 Water Year = 2011 First Quartile = 96% Median = 98% Third Quartile = 99% Number of Observations = 41 Water Year = 2011 First Quartile = 96% Median = 98% Third Quartile = 99% Number of Observations = 41 Water Year = 2011 First Quartile = 96% Median = 98% Third Quartile = 99% Number of Observations = 41 Water Year = 2011 First Quartile = 96% Median = 98% Third Quartile = 99% Number of Observations = 41 Water Year = 2010 First Quartile = 95% Median = 98% Third Quartile = 100% Number of Observations = 42 Water Year = 2010 First Quartile = 95% Median = 98% Third Quartile = 100% Number of Observations = 42 Water Year = 2010 First Quartile = 95% Median = 98% Third Quartile = 100% Number of Observations = 42 Water Year = 2010 First Quartile = 95% Median = 98% Third Quartile = 100% Number of Observations = 42 Water Year = 2010 First Quartile = 95% Median = 98% Third Quartile = 100% Number of Observations = 42 Water Year = 2010 First Quartile = 95% Median = 98% Third Quartile = 100% Number of Observations = 42 Water Year = 2010 First Quartile = 95% Median = 98% Third Quartile = 100% Number of Observations = 42 Water Year = 2010 First Quartile = 95% Median = 98% Third Quartile = 100% Number of Observations = 42 Y = 1
The SGPlot Procedure

Percent Recovery Statistics for Barium, fltd, ICP-OES

Analyte Parm-meth Code Water Year # of
Samples		 25th Pctl 50th Pctl
(Median)		 75th Pctl
Barium, fltd, ICP-OES 01005PLA11 2010 42 95.0% 98.2% 100.0%
    2011 41 95.8% 97.7% 99.0%
    2012 42 95.7% 97.3% 99.0%
    2013 42 94.7% 97.6% 100.1%
    2014 46 97.3% 99.2% 100.3%
    2015 42 94.9% 96.4% 98.6%
    2016 41 96.4% 98.6% 102.6%
    2017 24 101.6% 102.5% 103.7%
    2019 20 100.2% 102.6% 104.5%
    2020 24 100.2% 102.8% 103.4%
    2021 24 100.9% 101.8% 103.4%
    2022 24 101.9% 103.5% 104.9%
    2023 24 101.0% 101.5% 103.5%
    2024 21 101.4% 102.7% 104.5%

Hover over boxplot or outliers for additional information
Chart generated 03/27/2025
Charts and data secured from this U.S. Geological Survey (USGS) web page (identified as IBSP) have not received official USGS approval and as such are provisional and subject to revision. The charts and data are released on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use.


- Barium, unfltd, ICP-MS, recov -
Lab: NWQL, PCode: 01007, MCode: PLM47
Analysis Dates: 10/06/09 through 04/30/15
Open Data Set
Boxplot Description

Water Year = 2015 plotvalue = 110% pctrecov = 110% Water Year = 2015 plotvalue = 111% pctrecov = 111% Water Year = 2014 plotvalue = 97% pctrecov = 97% Water Year = 2013 plotvalue = 114% pctrecov = 114% Water Year = 2013 plotvalue = 118% pctrecov = 118% Water Year = 2013 plotvalue = 93% pctrecov = 93% Water Year = 2013 plotvalue = 93% pctrecov = 93% Water Year = 2012 plotvalue = 116% pctrecov = 116% Water Year = 2012 plotvalue = 95% pctrecov = 95% Water Year = 2012 plotvalue = 95% pctrecov = 95% Water Year = 2010 plotvalue = 110% pctrecov = 110% Water Year = 2010 plotvalue = 111% pctrecov = 111% Water Year = 2010 plotvalue = 93% pctrecov = 93% Water Year = 2015 First Quartile = 104% Median = 105% Third Quartile = 106% Number of Observations = 27 Water Year = 2015 First Quartile = 104% Median = 105% Third Quartile = 106% Number of Observations = 27 Water Year = 2015 First Quartile = 104% Median = 105% Third Quartile = 106% Number of Observations = 27 Water Year = 2015 First Quartile = 104% Median = 105% Third Quartile = 106% Number of Observations = 27 Water Year = 2015 First Quartile = 104% Median = 105% Third Quartile = 106% Number of Observations = 27 Water Year = 2015 First Quartile = 104% Median = 105% Third Quartile = 106% Number of Observations = 27 Water Year = 2015 First Quartile = 104% Median = 105% Third Quartile = 106% Number of Observations = 27 Water Year = 2015 First Quartile = 104% Median = 105% Third Quartile = 106% Number of Observations = 27 Water Year = 2014 First Quartile = 103% Median = 104% Third Quartile = 106% Number of Observations = 45 Water Year = 2014 First Quartile = 103% Median = 104% Third Quartile = 106% Number of Observations = 45 Water Year = 2014 First Quartile = 103% Median = 104% Third Quartile = 106% Number of Observations = 45 Water Year = 2014 First Quartile = 103% Median = 104% Third Quartile = 106% Number of Observations = 45 Water Year = 2014 First Quartile = 103% Median = 104% Third Quartile = 106% Number of Observations = 45 Water Year = 2014 First Quartile = 103% Median = 104% Third Quartile = 106% Number of Observations = 45 Water Year = 2014 First Quartile = 103% Median = 104% Third Quartile = 106% Number of Observations = 45 Water Year = 2014 First Quartile = 103% Median = 104% Third Quartile = 106% Number of Observations = 45 Water Year = 2013 First Quartile = 100% Median = 101% Third Quartile = 104% Number of Observations = 48 Water Year = 2013 First Quartile = 100% Median = 101% Third Quartile = 104% Number of Observations = 48 Water Year = 2013 First Quartile = 100% Median = 101% Third Quartile = 104% Number of Observations = 48 Water Year = 2013 First Quartile = 100% Median = 101% Third Quartile = 104% Number of Observations = 48 Water Year = 2013 First Quartile = 100% Median = 101% Third Quartile = 104% Number of Observations = 48 Water Year = 2013 First Quartile = 100% Median = 101% Third Quartile = 104% Number of Observations = 48 Water Year = 2013 First Quartile = 100% Median = 101% Third Quartile = 104% Number of Observations = 48 Water Year = 2013 First Quartile = 100% Median = 101% Third Quartile = 104% Number of Observations = 48 Water Year = 2012 First Quartile = 103% Median = 106% Third Quartile = 107% Number of Observations = 48 Water Year = 2012 First Quartile = 103% Median = 106% Third Quartile = 107% Number of Observations = 48 Water Year = 2012 First Quartile = 103% Median = 106% Third Quartile = 107% Number of Observations = 48 Water Year = 2012 First Quartile = 103% Median = 106% Third Quartile = 107% Number of Observations = 48 Water Year = 2012 First Quartile = 103% Median = 106% Third Quartile = 107% Number of Observations = 48 Water Year = 2012 First Quartile = 103% Median = 106% Third Quartile = 107% Number of Observations = 48 Water Year = 2012 First Quartile = 103% Median = 106% Third Quartile = 107% Number of Observations = 48 Water Year = 2012 First Quartile = 103% Median = 106% Third Quartile = 107% Number of Observations = 48 Water Year = 2011 First Quartile = 101% Median = 104% Third Quartile = 106% Number of Observations = 82 Water Year = 2011 First Quartile = 101% Median = 104% Third Quartile = 106% Number of Observations = 82 Water Year = 2011 First Quartile = 101% Median = 104% Third Quartile = 106% Number of Observations = 82 Water Year = 2011 First Quartile = 101% Median = 104% Third Quartile = 106% Number of Observations = 82 Water Year = 2011 First Quartile = 101% Median = 104% Third Quartile = 106% Number of Observations = 82 Water Year = 2011 First Quartile = 101% Median = 104% Third Quartile = 106% Number of Observations = 82 Water Year = 2011 First Quartile = 101% Median = 104% Third Quartile = 106% Number of Observations = 82 Water Year = 2011 First Quartile = 101% Median = 104% Third Quartile = 106% Number of Observations = 82 Water Year = 2010 First Quartile = 100% Median = 102% Third Quartile = 103% Number of Observations = 84 Water Year = 2010 First Quartile = 100% Median = 102% Third Quartile = 103% Number of Observations = 84 Water Year = 2010 First Quartile = 100% Median = 102% Third Quartile = 103% Number of Observations = 84 Water Year = 2010 First Quartile = 100% Median = 102% Third Quartile = 103% Number of Observations = 84 Water Year = 2010 First Quartile = 100% Median = 102% Third Quartile = 103% Number of Observations = 84 Water Year = 2010 First Quartile = 100% Median = 102% Third Quartile = 103% Number of Observations = 84 Water Year = 2010 First Quartile = 100% Median = 102% Third Quartile = 103% Number of Observations = 84 Water Year = 2010 First Quartile = 100% Median = 102% Third Quartile = 103% Number of Observations = 84 Water Year = 2009 First Quartile = 96% Median = 97% Third Quartile = 100% Number of Observations = 4 Water Year = 2009 First Quartile = 96% Median = 97% Third Quartile = 100% Number of Observations = 4 Water Year = 2009 First Quartile = 96% Median = 97% Third Quartile = 100% Number of Observations = 4 Water Year = 2009 First Quartile = 96% Median = 97% Third Quartile = 100% Number of Observations = 4 Water Year = 2009 First Quartile = 96% Median = 97% Third Quartile = 100% Number of Observations = 4 Water Year = 2009 First Quartile = 96% Median = 97% Third Quartile = 100% Number of Observations = 4 Water Year = 2009 First Quartile = 96% Median = 97% Third Quartile = 100% Number of Observations = 4 Water Year = 2009 First Quartile = 96% Median = 97% Third Quartile = 100% Number of Observations = 4 Y = 1
The SGPlot Procedure

Percent Recovery Statistics for Barium, unfltd, ICP-MS, recov

Analyte Parm-meth Code Water Year # of
Samples		 25th Pctl 50th Pctl
(Median)		 75th Pctl
Barium, unfltd, ICP-MS, recov 01007PLM47 2009 4 96.4% 97.1% 99.9%
    2010 84 99.6% 101.5% 103.4%
    2011 82 101.1% 103.5% 106.3%
    2012 48 103.4% 105.9% 107.3%
    2013 48 100.0% 101.3% 103.7%
    2014 45 102.7% 104.0% 105.5%
    2015 27 103.9% 105.4% 106.5%

Hover over boxplot or outliers for additional information
Chart generated 03/27/2025
Charts and data secured from this U.S. Geological Survey (USGS) web page (identified as IBSP) have not received official USGS approval and as such are provisional and subject to revision. The charts and data are released on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use.


- Barium, unfltd, ICP-MS, recov -
Lab: NWQL, PCode: 01007, MCode: PLM78
Analysis Dates: 05/12/15 through 09/25/24
Open Data Set
Boxplot Description

Water Year = 2023 plotvalue = 105% pctrecov = 105% Water Year = 2023 plotvalue = 90% pctrecov = 90% Water Year = 2020 plotvalue = 107% pctrecov = 107% Water Year = 2017 plotvalue = 108% pctrecov = 108% Water Year = 2016 plotvalue = 98% pctrecov = 98% Water Year = 2015 plotvalue = 113% pctrecov = 113% Water Year = 2024 First Quartile = 99% Median = 102% Third Quartile = 104% Number of Observations = 42 Water Year = 2024 First Quartile = 99% Median = 102% Third Quartile = 104% Number of Observations = 42 Water Year = 2024 First Quartile = 99% Median = 102% Third Quartile = 104% Number of Observations = 42 Water Year = 2024 First Quartile = 99% Median = 102% Third Quartile = 104% Number of Observations = 42 Water Year = 2024 First Quartile = 99% Median = 102% Third Quartile = 104% Number of Observations = 42 Water Year = 2024 First Quartile = 99% Median = 102% Third Quartile = 104% Number of Observations = 42 Water Year = 2024 First Quartile = 99% Median = 102% Third Quartile = 104% Number of Observations = 42 Water Year = 2024 First Quartile = 99% Median = 102% Third Quartile = 104% Number of Observations = 42 Water Year = 2023 First Quartile = 95% Median = 97% Third Quartile = 98% Number of Observations = 48 Water Year = 2023 First Quartile = 95% Median = 97% Third Quartile = 98% Number of Observations = 48 Water Year = 2023 First Quartile = 95% Median = 97% Third Quartile = 98% Number of Observations = 48 Water Year = 2023 First Quartile = 95% Median = 97% Third Quartile = 98% Number of Observations = 48 Water Year = 2023 First Quartile = 95% Median = 97% Third Quartile = 98% Number of Observations = 48 Water Year = 2023 First Quartile = 95% Median = 97% Third Quartile = 98% Number of Observations = 48 Water Year = 2023 First Quartile = 95% Median = 97% Third Quartile = 98% Number of Observations = 48 Water Year = 2023 First Quartile = 95% Median = 97% Third Quartile = 98% Number of Observations = 48 Water Year = 2022 First Quartile = 96% Median = 99% Third Quartile = 100% Number of Observations = 47 Water Year = 2022 First Quartile = 96% Median = 99% Third Quartile = 100% Number of Observations = 47 Water Year = 2022 First Quartile = 96% Median = 99% Third Quartile = 100% Number of Observations = 47 Water Year = 2022 First Quartile = 96% Median = 99% Third Quartile = 100% Number of Observations = 47 Water Year = 2022 First Quartile = 96% Median = 99% Third Quartile = 100% Number of Observations = 47 Water Year = 2022 First Quartile = 96% Median = 99% Third Quartile = 100% Number of Observations = 47 Water Year = 2022 First Quartile = 96% Median = 99% Third Quartile = 100% Number of Observations = 47 Water Year = 2022 First Quartile = 96% Median = 99% Third Quartile = 100% Number of Observations = 47 Water Year = 2021 First Quartile = 98% Median = 101% Third Quartile = 102% Number of Observations = 48 Water Year = 2021 First Quartile = 98% Median = 101% Third Quartile = 102% Number of Observations = 48 Water Year = 2021 First Quartile = 98% Median = 101% Third Quartile = 102% Number of Observations = 48 Water Year = 2021 First Quartile = 98% Median = 101% Third Quartile = 102% Number of Observations = 48 Water Year = 2021 First Quartile = 98% Median = 101% Third Quartile = 102% Number of Observations = 48 Water Year = 2021 First Quartile = 98% Median = 101% Third Quartile = 102% Number of Observations = 48 Water Year = 2021 First Quartile = 98% Median = 101% Third Quartile = 102% Number of Observations = 48 Water Year = 2021 First Quartile = 98% Median = 101% Third Quartile = 102% Number of Observations = 48 Water Year = 2020 First Quartile = 99% Median = 100% Third Quartile = 102% Number of Observations = 44 Water Year = 2020 First Quartile = 99% Median = 100% Third Quartile = 102% Number of Observations = 44 Water Year = 2020 First Quartile = 99% Median = 100% Third Quartile = 102% Number of Observations = 44 Water Year = 2020 First Quartile = 99% Median = 100% Third Quartile = 102% Number of Observations = 44 Water Year = 2020 First Quartile = 99% Median = 100% Third Quartile = 102% Number of Observations = 44 Water Year = 2020 First Quartile = 99% Median = 100% Third Quartile = 102% Number of Observations = 44 Water Year = 2020 First Quartile = 99% Median = 100% Third Quartile = 102% Number of Observations = 44 Water Year = 2020 First Quartile = 99% Median = 100% Third Quartile = 102% Number of Observations = 44 Water Year = 2019 First Quartile = 97% Median = 99% Third Quartile = 103% Number of Observations = 40 Water Year = 2019 First Quartile = 97% Median = 99% Third Quartile = 103% Number of Observations = 40 Water Year = 2019 First Quartile = 97% Median = 99% Third Quartile = 103% Number of Observations = 40 Water Year = 2019 First Quartile = 97% Median = 99% Third Quartile = 103% Number of Observations = 40 Water Year = 2019 First Quartile = 97% Median = 99% Third Quartile = 103% Number of Observations = 40 Water Year = 2019 First Quartile = 97% Median = 99% Third Quartile = 103% Number of Observations = 40 Water Year = 2019 First Quartile = 97% Median = 99% Third Quartile = 103% Number of Observations = 40 Water Year = 2019 First Quartile = 97% Median = 99% Third Quartile = 103% Number of Observations = 40 Water Year = 2017 First Quartile = 97% Median = 99% Third Quartile = 101% Number of Observations = 48 Water Year = 2017 First Quartile = 97% Median = 99% Third Quartile = 101% Number of Observations = 48 Water Year = 2017 First Quartile = 97% Median = 99% Third Quartile = 101% Number of Observations = 48 Water Year = 2017 First Quartile = 97% Median = 99% Third Quartile = 101% Number of Observations = 48 Water Year = 2017 First Quartile = 97% Median = 99% Third Quartile = 101% Number of Observations = 48 Water Year = 2017 First Quartile = 97% Median = 99% Third Quartile = 101% Number of Observations = 48 Water Year = 2017 First Quartile = 97% Median = 99% Third Quartile = 101% Number of Observations = 48 Water Year = 2017 First Quartile = 97% Median = 99% Third Quartile = 101% Number of Observations = 48 Water Year = 2016 First Quartile = 103% Median = 106% Third Quartile = 107% Number of Observations = 47 Water Year = 2016 First Quartile = 103% Median = 106% Third Quartile = 107% Number of Observations = 47 Water Year = 2016 First Quartile = 103% Median = 106% Third Quartile = 107% Number of Observations = 47 Water Year = 2016 First Quartile = 103% Median = 106% Third Quartile = 107% Number of Observations = 47 Water Year = 2016 First Quartile = 103% Median = 106% Third Quartile = 107% Number of Observations = 47 Water Year = 2016 First Quartile = 103% Median = 106% Third Quartile = 107% Number of Observations = 47 Water Year = 2016 First Quartile = 103% Median = 106% Third Quartile = 107% Number of Observations = 47 Water Year = 2016 First Quartile = 103% Median = 106% Third Quartile = 107% Number of Observations = 47 Water Year = 2015 First Quartile = 105% Median = 106% Third Quartile = 108% Number of Observations = 21 Water Year = 2015 First Quartile = 105% Median = 106% Third Quartile = 108% Number of Observations = 21 Water Year = 2015 First Quartile = 105% Median = 106% Third Quartile = 108% Number of Observations = 21 Water Year = 2015 First Quartile = 105% Median = 106% Third Quartile = 108% Number of Observations = 21 Water Year = 2015 First Quartile = 105% Median = 106% Third Quartile = 108% Number of Observations = 21 Water Year = 2015 First Quartile = 105% Median = 106% Third Quartile = 108% Number of Observations = 21 Water Year = 2015 First Quartile = 105% Median = 106% Third Quartile = 108% Number of Observations = 21 Water Year = 2015 First Quartile = 105% Median = 106% Third Quartile = 108% Number of Observations = 21 Y = 1
The SGPlot Procedure

Percent Recovery Statistics for Barium, unfltd, ICP-MS, recov

Analyte Parm-meth Code Water Year # of
Samples		 25th Pctl 50th Pctl
(Median)		 75th Pctl
Barium, unfltd, ICP-MS, recov 01007PLM78 2015 21 104.6% 106.2% 107.9%
    2016 47 103.4% 105.5% 106.9%
    2017 48 97.0% 98.7% 101.1%
    2019 40 97.5% 99.3% 102.7%
    2020 44 98.9% 100.0% 102.1%
    2021 48 98.4% 100.7% 102.0%
    2022 47 96.0% 98.5% 100.4%
    2023 48 95.2% 96.9% 98.2%
    2024 42 98.6% 101.7% 104.4%

Hover over boxplot or outliers for additional information
Chart generated 03/27/2025
Charts and data secured from this U.S. Geological Survey (USGS) web page (identified as IBSP) have not received official USGS approval and as such are provisional and subject to revision. The charts and data are released on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use.


- Barium, unfltd, ICP-OES, recov -
Lab: NWQL, PCode: 01007, MCode: PLA15
Analysis Dates: 11/02/10 through 03/24/15
Open Data Set
Boxplot Description

Water Year = 2014 plotvalue = 99% pctrecov = 99% Water Year = 2014 plotvalue = 101% pctrecov = 101% Water Year = 2014 plotvalue = 86% pctrecov = 86% Water Year = 2013 plotvalue = 130% pctrecov = 727% Water Year = 2015 First Quartile = 91% Median = 94% Third Quartile = 95% Number of Observations = 16 Water Year = 2015 First Quartile = 91% Median = 94% Third Quartile = 95% Number of Observations = 16 Water Year = 2015 First Quartile = 91% Median = 94% Third Quartile = 95% Number of Observations = 16 Water Year = 2015 First Quartile = 91% Median = 94% Third Quartile = 95% Number of Observations = 16 Water Year = 2015 First Quartile = 91% Median = 94% Third Quartile = 95% Number of Observations = 16 Water Year = 2015 First Quartile = 91% Median = 94% Third Quartile = 95% Number of Observations = 16 Water Year = 2015 First Quartile = 91% Median = 94% Third Quartile = 95% Number of Observations = 16 Water Year = 2015 First Quartile = 91% Median = 94% Third Quartile = 95% Number of Observations = 16 Water Year = 2014 First Quartile = 93% Median = 94% Third Quartile = 95% Number of Observations = 46 Water Year = 2014 First Quartile = 93% Median = 94% Third Quartile = 95% Number of Observations = 46 Water Year = 2014 First Quartile = 93% Median = 94% Third Quartile = 95% Number of Observations = 46 Water Year = 2014 First Quartile = 93% Median = 94% Third Quartile = 95% Number of Observations = 46 Water Year = 2014 First Quartile = 93% Median = 94% Third Quartile = 95% Number of Observations = 46 Water Year = 2014 First Quartile = 93% Median = 94% Third Quartile = 95% Number of Observations = 46 Water Year = 2014 First Quartile = 93% Median = 94% Third Quartile = 95% Number of Observations = 46 Water Year = 2014 First Quartile = 93% Median = 94% Third Quartile = 95% Number of Observations = 46 Water Year = 2013 First Quartile = 89% Median = 94% Third Quartile = 96% Number of Observations = 42 Water Year = 2013 First Quartile = 89% Median = 94% Third Quartile = 96% Number of Observations = 42 Water Year = 2013 First Quartile = 89% Median = 94% Third Quartile = 96% Number of Observations = 42 Water Year = 2013 First Quartile = 89% Median = 94% Third Quartile = 96% Number of Observations = 42 Water Year = 2013 First Quartile = 89% Median = 94% Third Quartile = 96% Number of Observations = 42 Water Year = 2013 First Quartile = 89% Median = 94% Third Quartile = 96% Number of Observations = 42 Water Year = 2013 First Quartile = 89% Median = 94% Third Quartile = 96% Number of Observations = 42 Water Year = 2013 First Quartile = 89% Median = 94% Third Quartile = 96% Number of Observations = 42 Water Year = 2011 First Quartile = 89% Median = 91% Third Quartile = 93% Number of Observations = 40 Water Year = 2011 First Quartile = 89% Median = 91% Third Quartile = 93% Number of Observations = 40 Water Year = 2011 First Quartile = 89% Median = 91% Third Quartile = 93% Number of Observations = 40 Water Year = 2011 First Quartile = 89% Median = 91% Third Quartile = 93% Number of Observations = 40 Water Year = 2011 First Quartile = 89% Median = 91% Third Quartile = 93% Number of Observations = 40 Water Year = 2011 First Quartile = 89% Median = 91% Third Quartile = 93% Number of Observations = 40 Water Year = 2011 First Quartile = 89% Median = 91% Third Quartile = 93% Number of Observations = 40 Water Year = 2011 First Quartile = 89% Median = 91% Third Quartile = 93% Number of Observations = 40 Y = 1
The SGPlot Procedure

Percent Recovery Statistics for Barium, unfltd, ICP-OES, recov

Analyte Parm-meth Code Water Year # of
Samples		 25th Pctl 50th Pctl
(Median)		 75th Pctl
Barium, unfltd, ICP-OES, recov 01007PLA15 2011 40 89.3% 91.2% 93.3%
    2013 42 89.3% 93.8% 95.8%
    2014 46 92.5% 93.9% 95.3%
    2015 16 91.2% 93.9% 94.5%

Hover over boxplot or outliers for additional information
Chart generated 03/27/2025
Charts and data secured from this U.S. Geological Survey (USGS) web page (identified as IBSP) have not received official USGS approval and as such are provisional and subject to revision. The charts and data are released on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use.


- Barium, unfltd, ICP-OES, recov -
Lab: NWQL, PCode: 01007, MCode: PLO07
Analysis Dates: 05/28/15 through 12/03/16
Open Data Set
Boxplot Description

Water Year = 2016 First Quartile = 96% Median = 98% Third Quartile = 100% Number of Observations = 41 Water Year = 2016 First Quartile = 96% Median = 98% Third Quartile = 100% Number of Observations = 41 Water Year = 2016 First Quartile = 96% Median = 98% Third Quartile = 100% Number of Observations = 41 Water Year = 2016 First Quartile = 96% Median = 98% Third Quartile = 100% Number of Observations = 41 Water Year = 2016 First Quartile = 96% Median = 98% Third Quartile = 100% Number of Observations = 41 Water Year = 2016 First Quartile = 96% Median = 98% Third Quartile = 100% Number of Observations = 41 Water Year = 2016 First Quartile = 96% Median = 98% Third Quartile = 100% Number of Observations = 41 Water Year = 2016 First Quartile = 96% Median = 98% Third Quartile = 100% Number of Observations = 41 Water Year = 2015 First Quartile = 95% Median = 97% Third Quartile = 98% Number of Observations = 26 Water Year = 2015 First Quartile = 95% Median = 97% Third Quartile = 98% Number of Observations = 26 Water Year = 2015 First Quartile = 95% Median = 97% Third Quartile = 98% Number of Observations = 26 Water Year = 2015 First Quartile = 95% Median = 97% Third Quartile = 98% Number of Observations = 26 Water Year = 2015 First Quartile = 95% Median = 97% Third Quartile = 98% Number of Observations = 26 Water Year = 2015 First Quartile = 95% Median = 97% Third Quartile = 98% Number of Observations = 26 Water Year = 2015 First Quartile = 95% Median = 97% Third Quartile = 98% Number of Observations = 26 Water Year = 2015 First Quartile = 95% Median = 97% Third Quartile = 98% Number of Observations = 26 Y = 1
The SGPlot Procedure

Percent Recovery Statistics for Barium, unfltd, ICP-OES, recov

Analyte Parm-meth Code Water Year # of
Samples		 25th Pctl 50th Pctl
(Median)		 75th Pctl
Barium, unfltd, ICP-OES, recov 01007PLO07 2015 26 94.7% 97.0% 98.0%
    2016 41 96.1% 97.9% 99.9%

Hover over boxplot or outliers for additional information
Chart generated 03/27/2025
Charts and data secured from this U.S. Geological Survey (USGS) web page (identified as IBSP) have not received official USGS approval and as such are provisional and subject to revision. The charts and data are released on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use.


- Beryllium, fltd, ICP-MS -
Lab: NWQL, PCode: 01010, MCode: PLM43
Analysis Dates: 10/09/09 through 09/26/24
Open Data Set
Boxplot Description

Water Year = 2024 plotvalue = 130% pctrecov = 133% Water Year = 2023 plotvalue = 120% pctrecov = 120% Water Year = 2023 plotvalue = 121% pctrecov = 121% Water Year = 2023 plotvalue = 122% pctrecov = 122% Water Year = 2021 plotvalue = 128% pctrecov = 128% Water Year = 2020 plotvalue = 76% pctrecov = 76% Water Year = 2019 plotvalue = 70% pctrecov = 2% Water Year = 2017 plotvalue = 121% pctrecov = 121% Water Year = 2016 plotvalue = 121% pctrecov = 121% Water Year = 2016 plotvalue = 80% pctrecov = 80% Water Year = 2016 plotvalue = 70% pctrecov = 18% Water Year = 2016 plotvalue = 70% pctrecov = 3% Water Year = 2016 plotvalue = 70% pctrecov = 11% Water Year = 2015 plotvalue = 118% pctrecov = 118% Water Year = 2015 plotvalue = 84% pctrecov = 84% Water Year = 2015 plotvalue = 82% pctrecov = 82% Water Year = 2015 plotvalue = 70% pctrecov = 11% Water Year = 2015 plotvalue = 70% pctrecov = 24% Water Year = 2014 plotvalue = 85% pctrecov = 85% Water Year = 2014 plotvalue = 70% pctrecov = 12% Water Year = 2014 plotvalue = 70% pctrecov = 24% Water Year = 2014 plotvalue = 70% pctrecov = 21% Water Year = 2013 plotvalue = 122% pctrecov = 122% Water Year = 2013 plotvalue = 127% pctrecov = 127% Water Year = 2013 plotvalue = 79% pctrecov = 79% Water Year = 2013 plotvalue = 70% pctrecov = 4% Water Year = 2012 plotvalue = 130% pctrecov = 258% Water Year = 2011 plotvalue = 70% pctrecov = 57% Water Year = 2011 plotvalue = 70% pctrecov = 62% Water Year = 2011 plotvalue = 70% pctrecov = 7% Water Year = 2011 plotvalue = 70% pctrecov = 0% Water Year = 2010 plotvalue = 120% pctrecov = 120% Water Year = 2010 plotvalue = 123% pctrecov = 123% Water Year = 2024 First Quartile = 102% Median = 106% Third Quartile = 112% Number of Observations = 70 Water Year = 2024 First Quartile = 102% Median = 106% Third Quartile = 112% Number of Observations = 70 Water Year = 2024 First Quartile = 102% Median = 106% Third Quartile = 112% Number of Observations = 70 Water Year = 2024 First Quartile = 102% Median = 106% Third Quartile = 112% Number of Observations = 70 Water Year = 2024 First Quartile = 102% Median = 106% Third Quartile = 112% Number of Observations = 70 Water Year = 2024 First Quartile = 102% Median = 106% Third Quartile = 112% Number of Observations = 70 Water Year = 2024 First Quartile = 102% Median = 106% Third Quartile = 112% Number of Observations = 70 Water Year = 2024 First Quartile = 102% Median = 106% Third Quartile = 112% Number of Observations = 70 Water Year = 2023 First Quartile = 101% Median = 104% Third Quartile = 108% Number of Observations = 89 Water Year = 2023 First Quartile = 101% Median = 104% Third Quartile = 108% Number of Observations = 89 Water Year = 2023 First Quartile = 101% Median = 104% Third Quartile = 108% Number of Observations = 89 Water Year = 2023 First Quartile = 101% Median = 104% Third Quartile = 108% Number of Observations = 89 Water Year = 2023 First Quartile = 101% Median = 104% Third Quartile = 108% Number of Observations = 89 Water Year = 2023 First Quartile = 101% Median = 104% Third Quartile = 108% Number of Observations = 89 Water Year = 2023 First Quartile = 101% Median = 104% Third Quartile = 108% Number of Observations = 89 Water Year = 2023 First Quartile = 101% Median = 104% Third Quartile = 108% Number of Observations = 89 Water Year = 2022 First Quartile = 100% Median = 106% Third Quartile = 109% Number of Observations = 89 Water Year = 2022 First Quartile = 100% Median = 106% Third Quartile = 109% Number of Observations = 89 Water Year = 2022 First Quartile = 100% Median = 106% Third Quartile = 109% Number of Observations = 89 Water Year = 2022 First Quartile = 100% Median = 106% Third Quartile = 109% Number of Observations = 89 Water Year = 2022 First Quartile = 100% Median = 106% Third Quartile = 109% Number of Observations = 89 Water Year = 2022 First Quartile = 100% Median = 106% Third Quartile = 109% Number of Observations = 89 Water Year = 2022 First Quartile = 100% Median = 106% Third Quartile = 109% Number of Observations = 89 Water Year = 2022 First Quartile = 100% Median = 106% Third Quartile = 109% Number of Observations = 89 Water Year = 2021 First Quartile = 98% Median = 104% Third Quartile = 110% Number of Observations = 90 Water Year = 2021 First Quartile = 98% Median = 104% Third Quartile = 110% Number of Observations = 90 Water Year = 2021 First Quartile = 98% Median = 104% Third Quartile = 110% Number of Observations = 90 Water Year = 2021 First Quartile = 98% Median = 104% Third Quartile = 110% Number of Observations = 90 Water Year = 2021 First Quartile = 98% Median = 104% Third Quartile = 110% Number of Observations = 90 Water Year = 2021 First Quartile = 98% Median = 104% Third Quartile = 110% Number of Observations = 90 Water Year = 2021 First Quartile = 98% Median = 104% Third Quartile = 110% Number of Observations = 90 Water Year = 2021 First Quartile = 98% Median = 104% Third Quartile = 110% Number of Observations = 90 Water Year = 2020 First Quartile = 92% Median = 98% Third Quartile = 102% Number of Observations = 86 Water Year = 2020 First Quartile = 92% Median = 98% Third Quartile = 102% Number of Observations = 86 Water Year = 2020 First Quartile = 92% Median = 98% Third Quartile = 102% Number of Observations = 86 Water Year = 2020 First Quartile = 92% Median = 98% Third Quartile = 102% Number of Observations = 86 Water Year = 2020 First Quartile = 92% Median = 98% Third Quartile = 102% Number of Observations = 86 Water Year = 2020 First Quartile = 92% Median = 98% Third Quartile = 102% Number of Observations = 86 Water Year = 2020 First Quartile = 92% Median = 98% Third Quartile = 102% Number of Observations = 86 Water Year = 2020 First Quartile = 92% Median = 98% Third Quartile = 102% Number of Observations = 86 Water Year = 2019 First Quartile = 94% Median = 99% Third Quartile = 103% Number of Observations = 78 Water Year = 2019 First Quartile = 94% Median = 99% Third Quartile = 103% Number of Observations = 78 Water Year = 2019 First Quartile = 94% Median = 99% Third Quartile = 103% Number of Observations = 78 Water Year = 2019 First Quartile = 94% Median = 99% Third Quartile = 103% Number of Observations = 78 Water Year = 2019 First Quartile = 94% Median = 99% Third Quartile = 103% Number of Observations = 78 Water Year = 2019 First Quartile = 94% Median = 99% Third Quartile = 103% Number of Observations = 78 Water Year = 2019 First Quartile = 94% Median = 99% Third Quartile = 103% Number of Observations = 78 Water Year = 2019 First Quartile = 94% Median = 99% Third Quartile = 103% Number of Observations = 78 Water Year = 2017 First Quartile = 98% Median = 103% Third Quartile = 107% Number of Observations = 90 Water Year = 2017 First Quartile = 98% Median = 103% Third Quartile = 107% Number of Observations = 90 Water Year = 2017 First Quartile = 98% Median = 103% Third Quartile = 107% Number of Observations = 90 Water Year = 2017 First Quartile = 98% Median = 103% Third Quartile = 107% Number of Observations = 90 Water Year = 2017 First Quartile = 98% Median = 103% Third Quartile = 107% Number of Observations = 90 Water Year = 2017 First Quartile = 98% Median = 103% Third Quartile = 107% Number of Observations = 90 Water Year = 2017 First Quartile = 98% Median = 103% Third Quartile = 107% Number of Observations = 90 Water Year = 2017 First Quartile = 98% Median = 103% Third Quartile = 107% Number of Observations = 90 Water Year = 2016 First Quartile = 97% Median = 100% Third Quartile = 104% Number of Observations = 90 Water Year = 2016 First Quartile = 97% Median = 100% Third Quartile = 104% Number of Observations = 90 Water Year = 2016 First Quartile = 97% Median = 100% Third Quartile = 104% Number of Observations = 90 Water Year = 2016 First Quartile = 97% Median = 100% Third Quartile = 104% Number of Observations = 90 Water Year = 2016 First Quartile = 97% Median = 100% Third Quartile = 104% Number of Observations = 90 Water Year = 2016 First Quartile = 97% Median = 100% Third Quartile = 104% Number of Observations = 90 Water Year = 2016 First Quartile = 97% Median = 100% Third Quartile = 104% Number of Observations = 90 Water Year = 2016 First Quartile = 97% Median = 100% Third Quartile = 104% Number of Observations = 90 Water Year = 2015 First Quartile = 99% Median = 103% Third Quartile = 106% Number of Observations = 90 Water Year = 2015 First Quartile = 99% Median = 103% Third Quartile = 106% Number of Observations = 90 Water Year = 2015 First Quartile = 99% Median = 103% Third Quartile = 106% Number of Observations = 90 Water Year = 2015 First Quartile = 99% Median = 103% Third Quartile = 106% Number of Observations = 90 Water Year = 2015 First Quartile = 99% Median = 103% Third Quartile = 106% Number of Observations = 90 Water Year = 2015 First Quartile = 99% Median = 103% Third Quartile = 106% Number of Observations = 90 Water Year = 2015 First Quartile = 99% Median = 103% Third Quartile = 106% Number of Observations = 90 Water Year = 2015 First Quartile = 99% Median = 103% Third Quartile = 106% Number of Observations = 90 Water Year = 2014 First Quartile = 97% Median = 100% Third Quartile = 104% Number of Observations = 83 Water Year = 2014 First Quartile = 97% Median = 100% Third Quartile = 104% Number of Observations = 83 Water Year = 2014 First Quartile = 97% Median = 100% Third Quartile = 104% Number of Observations = 83 Water Year = 2014 First Quartile = 97% Median = 100% Third Quartile = 104% Number of Observations = 83 Water Year = 2014 First Quartile = 97% Median = 100% Third Quartile = 104% Number of Observations = 83 Water Year = 2014 First Quartile = 97% Median = 100% Third Quartile = 104% Number of Observations = 83 Water Year = 2014 First Quartile = 97% Median = 100% Third Quartile = 104% Number of Observations = 83 Water Year = 2014 First Quartile = 97% Median = 100% Third Quartile = 104% Number of Observations = 83 Water Year = 2013 First Quartile = 96% Median = 101% Third Quartile = 105% Number of Observations = 108 Water Year = 2013 First Quartile = 96% Median = 101% Third Quartile = 105% Number of Observations = 108 Water Year = 2013 First Quartile = 96% Median = 101% Third Quartile = 105% Number of Observations = 108 Water Year = 2013 First Quartile = 96% Median = 101% Third Quartile = 105% Number of Observations = 108 Water Year = 2013 First Quartile = 96% Median = 101% Third Quartile = 105% Number of Observations = 108 Water Year = 2013 First Quartile = 96% Median = 101% Third Quartile = 105% Number of Observations = 108 Water Year = 2013 First Quartile = 96% Median = 101% Third Quartile = 105% Number of Observations = 108 Water Year = 2013 First Quartile = 96% Median = 101% Third Quartile = 105% Number of Observations = 108 Water Year = 2012 First Quartile = 88% Median = 96% Third Quartile = 102% Number of Observations = 132 Water Year = 2012 First Quartile = 88% Median = 96% Third Quartile = 102% Number of Observations = 132 Water Year = 2012 First Quartile = 88% Median = 96% Third Quartile = 102% Number of Observations = 132 Water Year = 2012 First Quartile = 88% Median = 96% Third Quartile = 102% Number of Observations = 132 Water Year = 2012 First Quartile = 88% Median = 96% Third Quartile = 102% Number of Observations = 132 Water Year = 2012 First Quartile = 88% Median = 96% Third Quartile = 102% Number of Observations = 132 Water Year = 2012 First Quartile = 88% Median = 96% Third Quartile = 102% Number of Observations = 132 Water Year = 2012 First Quartile = 88% Median = 96% Third Quartile = 102% Number of Observations = 132 Water Year = 2011 First Quartile = 90% Median = 97% Third Quartile = 103% Number of Observations = 131 Water Year = 2011 First Quartile = 90% Median = 97% Third Quartile = 103% Number of Observations = 131 Water Year = 2011 First Quartile = 90% Median = 97% Third Quartile = 103% Number of Observations = 131 Water Year = 2011 First Quartile = 90% Median = 97% Third Quartile = 103% Number of Observations = 131 Water Year = 2011 First Quartile = 90% Median = 97% Third Quartile = 103% Number of Observations = 131 Water Year = 2011 First Quartile = 90% Median = 97% Third Quartile = 103% Number of Observations = 131 Water Year = 2011 First Quartile = 90% Median = 97% Third Quartile = 103% Number of Observations = 131 Water Year = 2011 First Quartile = 90% Median = 97% Third Quartile = 103% Number of Observations = 131 Water Year = 2010 First Quartile = 93% Median = 99% Third Quartile = 103% Number of Observations = 132 Water Year = 2010 First Quartile = 93% Median = 99% Third Quartile = 103% Number of Observations = 132 Water Year = 2010 First Quartile = 93% Median = 99% Third Quartile = 103% Number of Observations = 132 Water Year = 2010 First Quartile = 93% Median = 99% Third Quartile = 103% Number of Observations = 132 Water Year = 2010 First Quartile = 93% Median = 99% Third Quartile = 103% Number of Observations = 132 Water Year = 2010 First Quartile = 93% Median = 99% Third Quartile = 103% Number of Observations = 132 Water Year = 2010 First Quartile = 93% Median = 99% Third Quartile = 103% Number of Observations = 132 Water Year = 2010 First Quartile = 93% Median = 99% Third Quartile = 103% Number of Observations = 132 Y = 1
The SGPlot Procedure

Percent Recovery Statistics for Beryllium, fltd, ICP-MS

Analyte Parm-meth Code Water Year # of
Samples		 25th Pctl 50th Pctl
(Median)		 75th Pctl
Beryllium, fltd, ICP-MS 01010PLM43 2010 132 92.9% 98.6% 103.2%
    2011 131 90.2% 97.1% 102.9%
    2012 132 88.4% 95.8% 102.0%
    2013 108 95.6% 100.7% 105.5%
    2014 83 96.7% 100.5% 103.8%
    2015 90 98.6% 102.6% 105.6%
    2016 90 97.3% 100.3% 104.1%
    2017 90 98.0% 102.6% 106.7%
    2019 78 93.9% 98.5% 103.5%
    2020 86 91.9% 97.7% 102.2%
    2021 90 98.5% 104.3% 109.9%
    2022 89 100.5% 105.5% 109.4%
    2023 89 100.6% 103.8% 107.7%
    2024 70 101.8% 106.0% 112.3%

Hover over boxplot or outliers for additional information
Chart generated 03/27/2025
Charts and data secured from this U.S. Geological Survey (USGS) web page (identified as IBSP) have not received official USGS approval and as such are provisional and subject to revision. The charts and data are released on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use.


- Beryllium, unfltd, ICP-MS, recov -
Lab: NWQL, PCode: 01012, MCode: PLM47
Analysis Dates: 10/05/09 through 04/30/15
Open Data Set
Boxplot Description

Water Year = 2014 plotvalue = 130% pctrecov = 143% Water Year = 2014 plotvalue = 70% pctrecov = 70% Water Year = 2014 plotvalue = 70% pctrecov = 70% Water Year = 2014 plotvalue = 70% pctrecov = 58% Water Year = 2012 plotvalue = 130% pctrecov = 222% Water Year = 2012 plotvalue = 130% pctrecov = 222% Water Year = 2012 plotvalue = 71% pctrecov = 71% Water Year = 2011 plotvalue = 82% pctrecov = 82% Water Year = 2011 plotvalue = 74% pctrecov = 74% Water Year = 2015 First Quartile = 95% Median = 98% Third Quartile = 102% Number of Observations = 27 Water Year = 2015 First Quartile = 95% Median = 98% Third Quartile = 102% Number of Observations = 27 Water Year = 2015 First Quartile = 95% Median = 98% Third Quartile = 102% Number of Observations = 27 Water Year = 2015 First Quartile = 95% Median = 98% Third Quartile = 102% Number of Observations = 27 Water Year = 2015 First Quartile = 95% Median = 98% Third Quartile = 102% Number of Observations = 27 Water Year = 2015 First Quartile = 95% Median = 98% Third Quartile = 102% Number of Observations = 27 Water Year = 2015 First Quartile = 95% Median = 98% Third Quartile = 102% Number of Observations = 27 Water Year = 2015 First Quartile = 95% Median = 98% Third Quartile = 102% Number of Observations = 27 Water Year = 2014 First Quartile = 95% Median = 99% Third Quartile = 103% Number of Observations = 45 Water Year = 2014 First Quartile = 95% Median = 99% Third Quartile = 103% Number of Observations = 45 Water Year = 2014 First Quartile = 95% Median = 99% Third Quartile = 103% Number of Observations = 45 Water Year = 2014 First Quartile = 95% Median = 99% Third Quartile = 103% Number of Observations = 45 Water Year = 2014 First Quartile = 95% Median = 99% Third Quartile = 103% Number of Observations = 45 Water Year = 2014 First Quartile = 95% Median = 99% Third Quartile = 103% Number of Observations = 45 Water Year = 2014 First Quartile = 95% Median = 99% Third Quartile = 103% Number of Observations = 45 Water Year = 2014 First Quartile = 95% Median = 99% Third Quartile = 103% Number of Observations = 45 Water Year = 2013 First Quartile = 90% Median = 96% Third Quartile = 101% Number of Observations = 48 Water Year = 2013 First Quartile = 90% Median = 96% Third Quartile = 101% Number of Observations = 48 Water Year = 2013 First Quartile = 90% Median = 96% Third Quartile = 101% Number of Observations = 48 Water Year = 2013 First Quartile = 90% Median = 96% Third Quartile = 101% Number of Observations = 48 Water Year = 2013 First Quartile = 90% Median = 96% Third Quartile = 101% Number of Observations = 48 Water Year = 2013 First Quartile = 90% Median = 96% Third Quartile = 101% Number of Observations = 48 Water Year = 2013 First Quartile = 90% Median = 96% Third Quartile = 101% Number of Observations = 48 Water Year = 2013 First Quartile = 90% Median = 96% Third Quartile = 101% Number of Observations = 48 Water Year = 2012 First Quartile = 88% Median = 94% Third Quartile = 99% Number of Observations = 48 Water Year = 2012 First Quartile = 88% Median = 94% Third Quartile = 99% Number of Observations = 48 Water Year = 2012 First Quartile = 88% Median = 94% Third Quartile = 99% Number of Observations = 48 Water Year = 2012 First Quartile = 88% Median = 94% Third Quartile = 99% Number of Observations = 48 Water Year = 2012 First Quartile = 88% Median = 94% Third Quartile = 99% Number of Observations = 48 Water Year = 2012 First Quartile = 88% Median = 94% Third Quartile = 99% Number of Observations = 48 Water Year = 2012 First Quartile = 88% Median = 94% Third Quartile = 99% Number of Observations = 48 Water Year = 2012 First Quartile = 88% Median = 94% Third Quartile = 99% Number of Observations = 48 Water Year = 2011 First Quartile = 95% Median = 99% Third Quartile = 101% Number of Observations = 48 Water Year = 2011 First Quartile = 95% Median = 99% Third Quartile = 101% Number of Observations = 48 Water Year = 2011 First Quartile = 95% Median = 99% Third Quartile = 101% Number of Observations = 48 Water Year = 2011 First Quartile = 95% Median = 99% Third Quartile = 101% Number of Observations = 48 Water Year = 2011 First Quartile = 95% Median = 99% Third Quartile = 101% Number of Observations = 48 Water Year = 2011 First Quartile = 95% Median = 99% Third Quartile = 101% Number of Observations = 48 Water Year = 2011 First Quartile = 95% Median = 99% Third Quartile = 101% Number of Observations = 48 Water Year = 2011 First Quartile = 95% Median = 99% Third Quartile = 101% Number of Observations = 48 Water Year = 2010 First Quartile = 91% Median = 95% Third Quartile = 98% Number of Observations = 48 Water Year = 2010 First Quartile = 91% Median = 95% Third Quartile = 98% Number of Observations = 48 Water Year = 2010 First Quartile = 91% Median = 95% Third Quartile = 98% Number of Observations = 48 Water Year = 2010 First Quartile = 91% Median = 95% Third Quartile = 98% Number of Observations = 48 Water Year = 2010 First Quartile = 91% Median = 95% Third Quartile = 98% Number of Observations = 48 Water Year = 2010 First Quartile = 91% Median = 95% Third Quartile = 98% Number of Observations = 48 Water Year = 2010 First Quartile = 91% Median = 95% Third Quartile = 98% Number of Observations = 48 Water Year = 2010 First Quartile = 91% Median = 95% Third Quartile = 98% Number of Observations = 48 Water Year = 2009 First Quartile = 96% Median = 97% Third Quartile = 98% Number of Observations = 9 Water Year = 2009 First Quartile = 96% Median = 97% Third Quartile = 98% Number of Observations = 9 Water Year = 2009 First Quartile = 96% Median = 97% Third Quartile = 98% Number of Observations = 9 Water Year = 2009 First Quartile = 96% Median = 97% Third Quartile = 98% Number of Observations = 9 Water Year = 2009 First Quartile = 96% Median = 97% Third Quartile = 98% Number of Observations = 9 Water Year = 2009 First Quartile = 96% Median = 97% Third Quartile = 98% Number of Observations = 9 Water Year = 2009 First Quartile = 96% Median = 97% Third Quartile = 98% Number of Observations = 9 Water Year = 2009 First Quartile = 96% Median = 97% Third Quartile = 98% Number of Observations = 9 Y = 1
The SGPlot Procedure

Percent Recovery Statistics for Beryllium, unfltd, ICP-MS, recov

Analyte Parm-meth Code Water Year # of
Samples		 25th Pctl 50th Pctl
(Median)		 75th Pctl
Beryllium, unfltd, ICP-MS, recov 01012PLM47 2009 9 95.6% 96.7% 97.6%
    2010 48 91.1% 94.9% 97.8%
    2011 48 95.2% 99.2% 101.4%
    2012 48 88.2% 94.4% 99.4%
    2013 48 90.5% 96.5% 100.7%
    2014 45 94.7% 99.5% 102.7%
    2015 27 94.6% 97.9% 102.1%

Hover over boxplot or outliers for additional information
Chart generated 03/27/2025
Charts and data secured from this U.S. Geological Survey (USGS) web page (identified as IBSP) have not received official USGS approval and as such are provisional and subject to revision. The charts and data are released on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use.


- Beryllium, unfltd, ICP-MS, recov -
Lab: NWQL, PCode: 01012, MCode: PLM78
Analysis Dates: 05/12/15 through 09/25/24
Open Data Set
Boxplot Description

Water Year = 2024 plotvalue = 125% pctrecov = 125% Water Year = 2024 plotvalue = 127% pctrecov = 127% Water Year = 2024 plotvalue = 89% pctrecov = 89% Water Year = 2023 plotvalue = 123% pctrecov = 123% Water Year = 2023 plotvalue = 123% pctrecov = 123% Water Year = 2021 plotvalue = 117% pctrecov = 117% Water Year = 2019 plotvalue = 118% pctrecov = 118% Water Year = 2016 plotvalue = 130% pctrecov = 131% Water Year = 2024 First Quartile = 102% Median = 105% Third Quartile = 109% Number of Observations = 42 Water Year = 2024 First Quartile = 102% Median = 105% Third Quartile = 109% Number of Observations = 42 Water Year = 2024 First Quartile = 102% Median = 105% Third Quartile = 109% Number of Observations = 42 Water Year = 2024 First Quartile = 102% Median = 105% Third Quartile = 109% Number of Observations = 42 Water Year = 2024 First Quartile = 102% Median = 105% Third Quartile = 109% Number of Observations = 42 Water Year = 2024 First Quartile = 102% Median = 105% Third Quartile = 109% Number of Observations = 42 Water Year = 2024 First Quartile = 102% Median = 105% Third Quartile = 109% Number of Observations = 42 Water Year = 2024 First Quartile = 102% Median = 105% Third Quartile = 109% Number of Observations = 42 Water Year = 2023 First Quartile = 101% Median = 106% Third Quartile = 110% Number of Observations = 48 Water Year = 2023 First Quartile = 101% Median = 106% Third Quartile = 110% Number of Observations = 48 Water Year = 2023 First Quartile = 101% Median = 106% Third Quartile = 110% Number of Observations = 48 Water Year = 2023 First Quartile = 101% Median = 106% Third Quartile = 110% Number of Observations = 48 Water Year = 2023 First Quartile = 101% Median = 106% Third Quartile = 110% Number of Observations = 48 Water Year = 2023 First Quartile = 101% Median = 106% Third Quartile = 110% Number of Observations = 48 Water Year = 2023 First Quartile = 101% Median = 106% Third Quartile = 110% Number of Observations = 48 Water Year = 2023 First Quartile = 101% Median = 106% Third Quartile = 110% Number of Observations = 48 Water Year = 2022 First Quartile = 95% Median = 101% Third Quartile = 107% Number of Observations = 47 Water Year = 2022 First Quartile = 95% Median = 101% Third Quartile = 107% Number of Observations = 47 Water Year = 2022 First Quartile = 95% Median = 101% Third Quartile = 107% Number of Observations = 47 Water Year = 2022 First Quartile = 95% Median = 101% Third Quartile = 107% Number of Observations = 47 Water Year = 2022 First Quartile = 95% Median = 101% Third Quartile = 107% Number of Observations = 47 Water Year = 2022 First Quartile = 95% Median = 101% Third Quartile = 107% Number of Observations = 47 Water Year = 2022 First Quartile = 95% Median = 101% Third Quartile = 107% Number of Observations = 47 Water Year = 2022 First Quartile = 95% Median = 101% Third Quartile = 107% Number of Observations = 47 Water Year = 2021 First Quartile = 90% Median = 96% Third Quartile = 101% Number of Observations = 48 Water Year = 2021 First Quartile = 90% Median = 96% Third Quartile = 101% Number of Observations = 48 Water Year = 2021 First Quartile = 90% Median = 96% Third Quartile = 101% Number of Observations = 48 Water Year = 2021 First Quartile = 90% Median = 96% Third Quartile = 101% Number of Observations = 48 Water Year = 2021 First Quartile = 90% Median = 96% Third Quartile = 101% Number of Observations = 48 Water Year = 2021 First Quartile = 90% Median = 96% Third Quartile = 101% Number of Observations = 48 Water Year = 2021 First Quartile = 90% Median = 96% Third Quartile = 101% Number of Observations = 48 Water Year = 2021 First Quartile = 90% Median = 96% Third Quartile = 101% Number of Observations = 48 Water Year = 2020 First Quartile = 91% Median = 98% Third Quartile = 105% Number of Observations = 44 Water Year = 2020 First Quartile = 91% Median = 98% Third Quartile = 105% Number of Observations = 44 Water Year = 2020 First Quartile = 91% Median = 98% Third Quartile = 105% Number of Observations = 44 Water Year = 2020 First Quartile = 91% Median = 98% Third Quartile = 105% Number of Observations = 44 Water Year = 2020 First Quartile = 91% Median = 98% Third Quartile = 105% Number of Observations = 44 Water Year = 2020 First Quartile = 91% Median = 98% Third Quartile = 105% Number of Observations = 44 Water Year = 2020 First Quartile = 91% Median = 98% Third Quartile = 105% Number of Observations = 44 Water Year = 2020 First Quartile = 91% Median = 98% Third Quartile = 105% Number of Observations = 44 Water Year = 2019 First Quartile = 96% Median = 99% Third Quartile = 105% Number of Observations = 40 Water Year = 2019 First Quartile = 96% Median = 99% Third Quartile = 105% Number of Observations = 40 Water Year = 2019 First Quartile = 96% Median = 99% Third Quartile = 105% Number of Observations = 40 Water Year = 2019 First Quartile = 96% Median = 99% Third Quartile = 105% Number of Observations = 40 Water Year = 2019 First Quartile = 96% Median = 99% Third Quartile = 105% Number of Observations = 40 Water Year = 2019 First Quartile = 96% Median = 99% Third Quartile = 105% Number of Observations = 40 Water Year = 2019 First Quartile = 96% Median = 99% Third Quartile = 105% Number of Observations = 40 Water Year = 2019 First Quartile = 96% Median = 99% Third Quartile = 105% Number of Observations = 40 Water Year = 2017 First Quartile = 96% Median = 99% Third Quartile = 106% Number of Observations = 48 Water Year = 2017 First Quartile = 96% Median = 99% Third Quartile = 106% Number of Observations = 48 Water Year = 2017 First Quartile = 96% Median = 99% Third Quartile = 106% Number of Observations = 48 Water Year = 2017 First Quartile = 96% Median = 99% Third Quartile = 106% Number of Observations = 48 Water Year = 2017 First Quartile = 96% Median = 99% Third Quartile = 106% Number of Observations = 48 Water Year = 2017 First Quartile = 96% Median = 99% Third Quartile = 106% Number of Observations = 48 Water Year = 2017 First Quartile = 96% Median = 99% Third Quartile = 106% Number of Observations = 48 Water Year = 2017 First Quartile = 96% Median = 99% Third Quartile = 106% Number of Observations = 48 Water Year = 2016 First Quartile = 93% Median = 100% Third Quartile = 104% Number of Observations = 48 Water Year = 2016 First Quartile = 93% Median = 100% Third Quartile = 104% Number of Observations = 48 Water Year = 2016 First Quartile = 93% Median = 100% Third Quartile = 104% Number of Observations = 48 Water Year = 2016 First Quartile = 93% Median = 100% Third Quartile = 104% Number of Observations = 48 Water Year = 2016 First Quartile = 93% Median = 100% Third Quartile = 104% Number of Observations = 48 Water Year = 2016 First Quartile = 93% Median = 100% Third Quartile = 104% Number of Observations = 48 Water Year = 2016 First Quartile = 93% Median = 100% Third Quartile = 104% Number of Observations = 48 Water Year = 2016 First Quartile = 93% Median = 100% Third Quartile = 104% Number of Observations = 48 Water Year = 2015 First Quartile = 90% Median = 94% Third Quartile = 100% Number of Observations = 21 Water Year = 2015 First Quartile = 90% Median = 94% Third Quartile = 100% Number of Observations = 21 Water Year = 2015 First Quartile = 90% Median = 94% Third Quartile = 100% Number of Observations = 21 Water Year = 2015 First Quartile = 90% Median = 94% Third Quartile = 100% Number of Observations = 21 Water Year = 2015 First Quartile = 90% Median = 94% Third Quartile = 100% Number of Observations = 21 Water Year = 2015 First Quartile = 90% Median = 94% Third Quartile = 100% Number of Observations = 21 Water Year = 2015 First Quartile = 90% Median = 94% Third Quartile = 100% Number of Observations = 21 Water Year = 2015 First Quartile = 90% Median = 94% Third Quartile = 100% Number of Observations = 21 Y = 1
The SGPlot Procedure

Percent Recovery Statistics for Beryllium, unfltd, ICP-MS, recov

Analyte Parm-meth Code Water Year # of
Samples		 25th Pctl 50th Pctl
(Median)		 75th Pctl
Beryllium, unfltd, ICP-MS, recov 01012PLM78 2015 21 90.0% 93.6% 99.8%
    2016 48 92.8% 100.1% 104.2%
    2017 48 95.7% 99.4% 105.6%
    2019 40 96.0% 99.1% 104.6%
    2020 44 91.4% 97.7% 104.6%
    2021 48 90.5% 95.6% 100.8%
    2022 47 95.2% 101.2% 107.3%
    2023 48 101.4% 105.7% 109.8%
    2024 42 102.4% 104.9% 109.4%

Hover over boxplot or outliers for additional information
Chart generated 03/27/2025
Charts and data secured from this U.S. Geological Survey (USGS) web page (identified as IBSP) have not received official USGS approval and as such are provisional and subject to revision. The charts and data are released on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use.


- Boron, fltd, ICP-MS -
Lab: NWQL, PCode: 01020, MCode: PLM40
Analysis Dates: 10/09/09 through 09/28/24
Open Data Set
Boxplot Description

Water Year = 2023 plotvalue = 84% pctrecov = 84% Water Year = 2023 plotvalue = 83% pctrecov = 83% Water Year = 2023 plotvalue = 78% pctrecov = 78% Water Year = 2021 plotvalue = 125% pctrecov = 125% Water Year = 2021 plotvalue = 130% pctrecov = 131% Water Year = 2020 plotvalue = 73% pctrecov = 73% Water Year = 2019 plotvalue = 130% pctrecov = 143% Water Year = 2016 plotvalue = 130% pctrecov = 337% Water Year = 2016 plotvalue = 130% pctrecov = 249% Water Year = 2016 plotvalue = 81% pctrecov = 81% Water Year = 2016 plotvalue = 70% pctrecov = 42% Water Year = 2015 plotvalue = 130% pctrecov = 145% Water Year = 2015 plotvalue = 130% pctrecov = 159% Water Year = 2015 plotvalue = 79% pctrecov = 79% Water Year = 2015 plotvalue = 78% pctrecov = 78% Water Year = 2015 plotvalue = 75% pctrecov = 75% Water Year = 2015 plotvalue = 70% pctrecov = 21% Water Year = 2014 plotvalue = 130% pctrecov = 134% Water Year = 2014 plotvalue = 130% pctrecov = 699% Water Year = 2014 plotvalue = 130% pctrecov = 143% Water Year = 2014 plotvalue = 78% pctrecov = 78% Water Year = 2014 plotvalue = 70% pctrecov = 19% Water Year = 2013 plotvalue = 130% pctrecov = 998% Water Year = 2012 plotvalue = 130% pctrecov = 806% Water Year = 2011 plotvalue = 130% pctrecov = 1627% Water Year = 2010 plotvalue = 126% pctrecov = 126% Water Year = 2024 First Quartile = 103% Median = 108% Third Quartile = 115% Number of Observations = 73 Water Year = 2024 First Quartile = 103% Median = 108% Third Quartile = 115% Number of Observations = 73 Water Year = 2024 First Quartile = 103% Median = 108% Third Quartile = 115% Number of Observations = 73 Water Year = 2024 First Quartile = 103% Median = 108% Third Quartile = 115% Number of Observations = 73 Water Year = 2024 First Quartile = 103% Median = 108% Third Quartile = 115% Number of Observations = 73 Water Year = 2024 First Quartile = 103% Median = 108% Third Quartile = 115% Number of Observations = 73 Water Year = 2024 First Quartile = 103% Median = 108% Third Quartile = 115% Number of Observations = 73 Water Year = 2024 First Quartile = 103% Median = 108% Third Quartile = 115% Number of Observations = 73 Water Year = 2023 First Quartile = 102% Median = 108% Third Quartile = 112% Number of Observations = 89 Water Year = 2023 First Quartile = 102% Median = 108% Third Quartile = 112% Number of Observations = 89 Water Year = 2023 First Quartile = 102% Median = 108% Third Quartile = 112% Number of Observations = 89 Water Year = 2023 First Quartile = 102% Median = 108% Third Quartile = 112% Number of Observations = 89 Water Year = 2023 First Quartile = 102% Median = 108% Third Quartile = 112% Number of Observations = 89 Water Year = 2023 First Quartile = 102% Median = 108% Third Quartile = 112% Number of Observations = 89 Water Year = 2023 First Quartile = 102% Median = 108% Third Quartile = 112% Number of Observations = 89 Water Year = 2023 First Quartile = 102% Median = 108% Third Quartile = 112% Number of Observations = 89 Water Year = 2022 First Quartile = 102% Median = 107% Third Quartile = 113% Number of Observations = 89 Water Year = 2022 First Quartile = 102% Median = 107% Third Quartile = 113% Number of Observations = 89 Water Year = 2022 First Quartile = 102% Median = 107% Third Quartile = 113% Number of Observations = 89 Water Year = 2022 First Quartile = 102% Median = 107% Third Quartile = 113% Number of Observations = 89 Water Year = 2022 First Quartile = 102% Median = 107% Third Quartile = 113% Number of Observations = 89 Water Year = 2022 First Quartile = 102% Median = 107% Third Quartile = 113% Number of Observations = 89 Water Year = 2022 First Quartile = 102% Median = 107% Third Quartile = 113% Number of Observations = 89 Water Year = 2022 First Quartile = 102% Median = 107% Third Quartile = 113% Number of Observations = 89 Water Year = 2021 First Quartile = 102% Median = 108% Third Quartile = 111% Number of Observations = 90 Water Year = 2021 First Quartile = 102% Median = 108% Third Quartile = 111% Number of Observations = 90 Water Year = 2021 First Quartile = 102% Median = 108% Third Quartile = 111% Number of Observations = 90 Water Year = 2021 First Quartile = 102% Median = 108% Third Quartile = 111% Number of Observations = 90 Water Year = 2021 First Quartile = 102% Median = 108% Third Quartile = 111% Number of Observations = 90 Water Year = 2021 First Quartile = 102% Median = 108% Third Quartile = 111% Number of Observations = 90 Water Year = 2021 First Quartile = 102% Median = 108% Third Quartile = 111% Number of Observations = 90 Water Year = 2021 First Quartile = 102% Median = 108% Third Quartile = 111% Number of Observations = 90 Water Year = 2020 First Quartile = 94% Median = 101% Third Quartile = 105% Number of Observations = 72 Water Year = 2020 First Quartile = 94% Median = 101% Third Quartile = 105% Number of Observations = 72 Water Year = 2020 First Quartile = 94% Median = 101% Third Quartile = 105% Number of Observations = 72 Water Year = 2020 First Quartile = 94% Median = 101% Third Quartile = 105% Number of Observations = 72 Water Year = 2020 First Quartile = 94% Median = 101% Third Quartile = 105% Number of Observations = 72 Water Year = 2020 First Quartile = 94% Median = 101% Third Quartile = 105% Number of Observations = 72 Water Year = 2020 First Quartile = 94% Median = 101% Third Quartile = 105% Number of Observations = 72 Water Year = 2020 First Quartile = 94% Median = 101% Third Quartile = 105% Number of Observations = 72 Water Year = 2019 First Quartile = 91% Median = 97% Third Quartile = 103% Number of Observations = 66 Water Year = 2019 First Quartile = 91% Median = 97% Third Quartile = 103% Number of Observations = 66 Water Year = 2019 First Quartile = 91% Median = 97% Third Quartile = 103% Number of Observations = 66 Water Year = 2019 First Quartile = 91% Median = 97% Third Quartile = 103% Number of Observations = 66 Water Year = 2019 First Quartile = 91% Median = 97% Third Quartile = 103% Number of Observations = 66 Water Year = 2019 First Quartile = 91% Median = 97% Third Quartile = 103% Number of Observations = 66 Water Year = 2019 First Quartile = 91% Median = 97% Third Quartile = 103% Number of Observations = 66 Water Year = 2019 First Quartile = 91% Median = 97% Third Quartile = 103% Number of Observations = 66 Water Year = 2017 First Quartile = 101% Median = 106% Third Quartile = 113% Number of Observations = 79 Water Year = 2017 First Quartile = 101% Median = 106% Third Quartile = 113% Number of Observations = 79 Water Year = 2017 First Quartile = 101% Median = 106% Third Quartile = 113% Number of Observations = 79 Water Year = 2017 First Quartile = 101% Median = 106% Third Quartile = 113% Number of Observations = 79 Water Year = 2017 First Quartile = 101% Median = 106% Third Quartile = 113% Number of Observations = 79 Water Year = 2017 First Quartile = 101% Median = 106% Third Quartile = 113% Number of Observations = 79 Water Year = 2017 First Quartile = 101% Median = 106% Third Quartile = 113% Number of Observations = 79 Water Year = 2017 First Quartile = 101% Median = 106% Third Quartile = 113% Number of Observations = 79 Water Year = 2016 First Quartile = 99% Median = 106% Third Quartile = 110% Number of Observations = 77 Water Year = 2016 First Quartile = 99% Median = 106% Third Quartile = 110% Number of Observations = 77 Water Year = 2016 First Quartile = 99% Median = 106% Third Quartile = 110% Number of Observations = 77 Water Year = 2016 First Quartile = 99% Median = 106% Third Quartile = 110% Number of Observations = 77 Water Year = 2016 First Quartile = 99% Median = 106% Third Quartile = 110% Number of Observations = 77 Water Year = 2016 First Quartile = 99% Median = 106% Third Quartile = 110% Number of Observations = 77 Water Year = 2016 First Quartile = 99% Median = 106% Third Quartile = 110% Number of Observations = 77 Water Year = 2016 First Quartile = 99% Median = 106% Third Quartile = 110% Number of Observations = 77 Water Year = 2015 First Quartile = 96% Median = 101% Third Quartile = 106% Number of Observations = 77 Water Year = 2015 First Quartile = 96% Median = 101% Third Quartile = 106% Number of Observations = 77 Water Year = 2015 First Quartile = 96% Median = 101% Third Quartile = 106% Number of Observations = 77 Water Year = 2015 First Quartile = 96% Median = 101% Third Quartile = 106% Number of Observations = 77 Water Year = 2015 First Quartile = 96% Median = 101% Third Quartile = 106% Number of Observations = 77 Water Year = 2015 First Quartile = 96% Median = 101% Third Quartile = 106% Number of Observations = 77 Water Year = 2015 First Quartile = 96% Median = 101% Third Quartile = 106% Number of Observations = 77 Water Year = 2015 First Quartile = 96% Median = 101% Third Quartile = 106% Number of Observations = 77 Water Year = 2014 First Quartile = 92% Median = 97% Third Quartile = 102% Number of Observations = 83 Water Year = 2014 First Quartile = 92% Median = 97% Third Quartile = 102% Number of Observations = 83 Water Year = 2014 First Quartile = 92% Median = 97% Third Quartile = 102% Number of Observations = 83 Water Year = 2014 First Quartile = 92% Median = 97% Third Quartile = 102% Number of Observations = 83 Water Year = 2014 First Quartile = 92% Median = 97% Third Quartile = 102% Number of Observations = 83 Water Year = 2014 First Quartile = 92% Median = 97% Third Quartile = 102% Number of Observations = 83 Water Year = 2014 First Quartile = 92% Median = 97% Third Quartile = 102% Number of Observations = 83 Water Year = 2014 First Quartile = 92% Median = 97% Third Quartile = 102% Number of Observations = 83 Water Year = 2013 First Quartile = 89% Median = 95% Third Quartile = 102% Number of Observations = 108 Water Year = 2013 First Quartile = 89% Median = 95% Third Quartile = 102% Number of Observations = 108 Water Year = 2013 First Quartile = 89% Median = 95% Third Quartile = 102% Number of Observations = 108 Water Year = 2013 First Quartile = 89% Median = 95% Third Quartile = 102% Number of Observations = 108 Water Year = 2013 First Quartile = 89% Median = 95% Third Quartile = 102% Number of Observations = 108 Water Year = 2013 First Quartile = 89% Median = 95% Third Quartile = 102% Number of Observations = 108 Water Year = 2013 First Quartile = 89% Median = 95% Third Quartile = 102% Number of Observations = 108 Water Year = 2013 First Quartile = 89% Median = 95% Third Quartile = 102% Number of Observations = 108 Water Year = 2012 First Quartile = 89% Median = 98% Third Quartile = 105% Number of Observations = 132 Water Year = 2012 First Quartile = 89% Median = 98% Third Quartile = 105% Number of Observations = 132 Water Year = 2012 First Quartile = 89% Median = 98% Third Quartile = 105% Number of Observations = 132 Water Year = 2012 First Quartile = 89% Median = 98% Third Quartile = 105% Number of Observations = 132 Water Year = 2012 First Quartile = 89% Median = 98% Third Quartile = 105% Number of Observations = 132 Water Year = 2012 First Quartile = 89% Median = 98% Third Quartile = 105% Number of Observations = 132 Water Year = 2012 First Quartile = 89% Median = 98% Third Quartile = 105% Number of Observations = 132 Water Year = 2012 First Quartile = 89% Median = 98% Third Quartile = 105% Number of Observations = 132 Water Year = 2011 First Quartile = 82% Median = 90% Third Quartile = 99% Number of Observations = 131 Water Year = 2011 First Quartile = 82% Median = 90% Third Quartile = 99% Number of Observations = 131 Water Year = 2011 First Quartile = 82% Median = 90% Third Quartile = 99% Number of Observations = 131 Water Year = 2011 First Quartile = 82% Median = 90% Third Quartile = 99% Number of Observations = 131 Water Year = 2011 First Quartile = 82% Median = 90% Third Quartile = 99% Number of Observations = 131 Water Year = 2011 First Quartile = 82% Median = 90% Third Quartile = 99% Number of Observations = 131 Water Year = 2011 First Quartile = 82% Median = 90% Third Quartile = 99% Number of Observations = 131 Water Year = 2011 First Quartile = 82% Median = 90% Third Quartile = 99% Number of Observations = 131 Water Year = 2010 First Quartile = 94% Median = 100% Third Quartile = 105% Number of Observations = 132 Water Year = 2010 First Quartile = 94% Median = 100% Third Quartile = 105% Number of Observations = 132 Water Year = 2010 First Quartile = 94% Median = 100% Third Quartile = 105% Number of Observations = 132 Water Year = 2010 First Quartile = 94% Median = 100% Third Quartile = 105% Number of Observations = 132 Water Year = 2010 First Quartile = 94% Median = 100% Third Quartile = 105% Number of Observations = 132 Water Year = 2010 First Quartile = 94% Median = 100% Third Quartile = 105% Number of Observations = 132 Water Year = 2010 First Quartile = 94% Median = 100% Third Quartile = 105% Number of Observations = 132 Water Year = 2010 First Quartile = 94% Median = 100% Third Quartile = 105% Number of Observations = 132 Y = 1
The SGPlot Procedure

Percent Recovery Statistics for Boron, fltd, ICP-MS

Analyte Parm-meth Code Water Year # of
Samples		 25th Pctl 50th Pctl
(Median)		 75th Pctl
Boron, fltd, ICP-MS 01020PLM40 2010 132 94.2% 100.1% 105.4%
    2011 131 82.3% 90.2% 99.1%
    2012 132 88.6% 97.8% 104.8%
    2013 108 88.7% 95.5% 101.7%
    2014 83 92.4% 97.3% 101.7%
    2015 77 95.6% 100.7% 106.4%
    2016 77 99.1% 106.2% 110.3%
    2017 79 101.1% 105.9% 112.9%
    2019 66 91.4% 97.4% 103.3%
    2020 72 94.4% 100.8% 104.8%
    2021 90 102.2% 108.1% 111.2%
    2022 89 102.0% 107.3% 113.1%
    2023 89 102.3% 107.5% 112.3%
    2024 73 103.1% 108.0% 114.7%

Hover over boxplot or outliers for additional information
Chart generated 03/27/2025
Charts and data secured from this U.S. Geological Survey (USGS) web page (identified as IBSP) have not received official USGS approval and as such are provisional and subject to revision. The charts and data are released on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use.


- Boron, fltd, ICP-OES -
Lab: NWQL, PCode: 01020, MCode: PLA13
Analysis Dates: 10/14/09 through 09/25/24
Open Data Set
Boxplot Description

Water Year = 2024 plotvalue = 121% pctrecov = 121% Water Year = 2022 plotvalue = 130% pctrecov = 131% Water Year = 2021 plotvalue = 121% pctrecov = 121% Water Year = 2021 plotvalue = 94% pctrecov = 94% Water Year = 2020 plotvalue = 130% pctrecov = 140% Water Year = 2019 plotvalue = 121% pctrecov = 121% Water Year = 2019 plotvalue = 92% pctrecov = 92% Water Year = 2019 plotvalue = 90% pctrecov = 90% Water Year = 2019 plotvalue = 83% pctrecov = 83% Water Year = 2015 plotvalue = 128% pctrecov = 128% Water Year = 2015 plotvalue = 130% pctrecov = 130% Water Year = 2015 plotvalue = 130% pctrecov = 142% Water Year = 2015 plotvalue = 130% pctrecov = 165% Water Year = 2015 plotvalue = 130% pctrecov = 137% Water Year = 2015 plotvalue = 130% pctrecov = 171% Water Year = 2015 plotvalue = 130% pctrecov = 148% Water Year = 2015 plotvalue = 82% pctrecov = 82% Water Year = 2015 plotvalue = 75% pctrecov = 75% Water Year = 2015 plotvalue = 75% pctrecov = 75% Water Year = 2015 plotvalue = 70% pctrecov = 64% Water Year = 2014 plotvalue = 121% pctrecov = 121% Water Year = 2014 plotvalue = 130% pctrecov = 135% Water Year = 2014 plotvalue = 130% pctrecov = 137% Water Year = 2014 plotvalue = 130% pctrecov = 147% Water Year = 2014 plotvalue = 88% pctrecov = 88% Water Year = 2014 plotvalue = 86% pctrecov = 86% Water Year = 2013 plotvalue = 114% pctrecov = 114% Water Year = 2013 plotvalue = 114% pctrecov = 114% Water Year = 2013 plotvalue = 119% pctrecov = 119% Water Year = 2013 plotvalue = 120% pctrecov = 120% Water Year = 2013 plotvalue = 130% pctrecov = 130% Water Year = 2013 plotvalue = 82% pctrecov = 82% Water Year = 2013 plotvalue = 79% pctrecov = 79% Water Year = 2012 plotvalue = 114% pctrecov = 114% Water Year = 2012 plotvalue = 121% pctrecov = 121% Water Year = 2011 plotvalue = 130% pctrecov = 139% Water Year = 2011 plotvalue = 92% pctrecov = 92% Water Year = 2011 plotvalue = 92% pctrecov = 92% Water Year = 2011 plotvalue = 89% pctrecov = 89% Water Year = 2011 plotvalue = 89% pctrecov = 89% Water Year = 2011 plotvalue = 89% pctrecov = 89% Water Year = 2010 plotvalue = 130% pctrecov = 161% Water Year = 2010 plotvalue = 130% pctrecov = 132% Water Year = 2010 plotvalue = 76% pctrecov = 76% Water Year = 2024 First Quartile = 106% Median = 109% Third Quartile = 112% Number of Observations = 36 Water Year = 2024 First Quartile = 106% Median = 109% Third Quartile = 112% Number of Observations = 36 Water Year = 2024 First Quartile = 106% Median = 109% Third Quartile = 112% Number of Observations = 36 Water Year = 2024 First Quartile = 106% Median = 109% Third Quartile = 112% Number of Observations = 36 Water Year = 2024 First Quartile = 106% Median = 109% Third Quartile = 112% Number of Observations = 36 Water Year = 2024 First Quartile = 106% Median = 109% Third Quartile = 112% Number of Observations = 36 Water Year = 2024 First Quartile = 106% Median = 109% Third Quartile = 112% Number of Observations = 36 Water Year = 2024 First Quartile = 106% Median = 109% Third Quartile = 112% Number of Observations = 36 Water Year = 2023 First Quartile = 106% Median = 110% Third Quartile = 114% Number of Observations = 66 Water Year = 2023 First Quartile = 106% Median = 110% Third Quartile = 114% Number of Observations = 66 Water Year = 2023 First Quartile = 106% Median = 110% Third Quartile = 114% Number of Observations = 66 Water Year = 2023 First Quartile = 106% Median = 110% Third Quartile = 114% Number of Observations = 66 Water Year = 2023 First Quartile = 106% Median = 110% Third Quartile = 114% Number of Observations = 66 Water Year = 2023 First Quartile = 106% Median = 110% Third Quartile = 114% Number of Observations = 66 Water Year = 2023 First Quartile = 106% Median = 110% Third Quartile = 114% Number of Observations = 66 Water Year = 2023 First Quartile = 106% Median = 110% Third Quartile = 114% Number of Observations = 66 Water Year = 2022 First Quartile = 106% Median = 111% Third Quartile = 115% Number of Observations = 66 Water Year = 2022 First Quartile = 106% Median = 111% Third Quartile = 115% Number of Observations = 66 Water Year = 2022 First Quartile = 106% Median = 111% Third Quartile = 115% Number of Observations = 66 Water Year = 2022 First Quartile = 106% Median = 111% Third Quartile = 115% Number of Observations = 66 Water Year = 2022 First Quartile = 106% Median = 111% Third Quartile = 115% Number of Observations = 66 Water Year = 2022 First Quartile = 106% Median = 111% Third Quartile = 115% Number of Observations = 66 Water Year = 2022 First Quartile = 106% Median = 111% Third Quartile = 115% Number of Observations = 66 Water Year = 2022 First Quartile = 106% Median = 111% Third Quartile = 115% Number of Observations = 66 Water Year = 2021 First Quartile = 104% Median = 107% Third Quartile = 110% Number of Observations = 66 Water Year = 2021 First Quartile = 104% Median = 107% Third Quartile = 110% Number of Observations = 66 Water Year = 2021 First Quartile = 104% Median = 107% Third Quartile = 110% Number of Observations = 66 Water Year = 2021 First Quartile = 104% Median = 107% Third Quartile = 110% Number of Observations = 66 Water Year = 2021 First Quartile = 104% Median = 107% Third Quartile = 110% Number of Observations = 66 Water Year = 2021 First Quartile = 104% Median = 107% Third Quartile = 110% Number of Observations = 66 Water Year = 2021 First Quartile = 104% Median = 107% Third Quartile = 110% Number of Observations = 66 Water Year = 2021 First Quartile = 104% Median = 107% Third Quartile = 110% Number of Observations = 66 Water Year = 2020 First Quartile = 106% Median = 109% Third Quartile = 112% Number of Observations = 59 Water Year = 2020 First Quartile = 106% Median = 109% Third Quartile = 112% Number of Observations = 59 Water Year = 2020 First Quartile = 106% Median = 109% Third Quartile = 112% Number of Observations = 59 Water Year = 2020 First Quartile = 106% Median = 109% Third Quartile = 112% Number of Observations = 59 Water Year = 2020 First Quartile = 106% Median = 109% Third Quartile = 112% Number of Observations = 59 Water Year = 2020 First Quartile = 106% Median = 109% Third Quartile = 112% Number of Observations = 59 Water Year = 2020 First Quartile = 106% Median = 109% Third Quartile = 112% Number of Observations = 59 Water Year = 2020 First Quartile = 106% Median = 109% Third Quartile = 112% Number of Observations = 59 Water Year = 2019 First Quartile = 104% Median = 107% Third Quartile = 110% Number of Observations = 58 Water Year = 2019 First Quartile = 104% Median = 107% Third Quartile = 110% Number of Observations = 58 Water Year = 2019 First Quartile = 104% Median = 107% Third Quartile = 110% Number of Observations = 58 Water Year = 2019 First Quartile = 104% Median = 107% Third Quartile = 110% Number of Observations = 58 Water Year = 2019 First Quartile = 104% Median = 107% Third Quartile = 110% Number of Observations = 58 Water Year = 2019 First Quartile = 104% Median = 107% Third Quartile = 110% Number of Observations = 58 Water Year = 2019 First Quartile = 104% Median = 107% Third Quartile = 110% Number of Observations = 58 Water Year = 2019 First Quartile = 104% Median = 107% Third Quartile = 110% Number of Observations = 58 Water Year = 2017 First Quartile = 104% Median = 106% Third Quartile = 109% Number of Observations = 42 Water Year = 2017 First Quartile = 104% Median = 106% Third Quartile = 109% Number of Observations = 42 Water Year = 2017 First Quartile = 104% Median = 106% Third Quartile = 109% Number of Observations = 42 Water Year = 2017 First Quartile = 104% Median = 106% Third Quartile = 109% Number of Observations = 42 Water Year = 2017 First Quartile = 104% Median = 106% Third Quartile = 109% Number of Observations = 42 Water Year = 2017 First Quartile = 104% Median = 106% Third Quartile = 109% Number of Observations = 42 Water Year = 2017 First Quartile = 104% Median = 106% Third Quartile = 109% Number of Observations = 42 Water Year = 2017 First Quartile = 104% Median = 106% Third Quartile = 109% Number of Observations = 42 Water Year = 2016 First Quartile = 102% Median = 107% Third Quartile = 113% Number of Observations = 42 Water Year = 2016 First Quartile = 102% Median = 107% Third Quartile = 113% Number of Observations = 42 Water Year = 2016 First Quartile = 102% Median = 107% Third Quartile = 113% Number of Observations = 42 Water Year = 2016 First Quartile = 102% Median = 107% Third Quartile = 113% Number of Observations = 42 Water Year = 2016 First Quartile = 102% Median = 107% Third Quartile = 113% Number of Observations = 42 Water Year = 2016 First Quartile = 102% Median = 107% Third Quartile = 113% Number of Observations = 42 Water Year = 2016 First Quartile = 102% Median = 107% Third Quartile = 113% Number of Observations = 42 Water Year = 2016 First Quartile = 102% Median = 107% Third Quartile = 113% Number of Observations = 42 Water Year = 2015 First Quartile = 104% Median = 108% Third Quartile = 113% Number of Observations = 90 Water Year = 2015 First Quartile = 104% Median = 108% Third Quartile = 113% Number of Observations = 90 Water Year = 2015 First Quartile = 104% Median = 108% Third Quartile = 113% Number of Observations = 90 Water Year = 2015 First Quartile = 104% Median = 108% Third Quartile = 113% Number of Observations = 90 Water Year = 2015 First Quartile = 104% Median = 108% Third Quartile = 113% Number of Observations = 90 Water Year = 2015 First Quartile = 104% Median = 108% Third Quartile = 113% Number of Observations = 90 Water Year = 2015 First Quartile = 104% Median = 108% Third Quartile = 113% Number of Observations = 90 Water Year = 2015 First Quartile = 104% Median = 108% Third Quartile = 113% Number of Observations = 90 Water Year = 2014 First Quartile = 99% Median = 103% Third Quartile = 106% Number of Observations = 85 Water Year = 2014 First Quartile = 99% Median = 103% Third Quartile = 106% Number of Observations = 85 Water Year = 2014 First Quartile = 99% Median = 103% Third Quartile = 106% Number of Observations = 85 Water Year = 2014 First Quartile = 99% Median = 103% Third Quartile = 106% Number of Observations = 85 Water Year = 2014 First Quartile = 99% Median = 103% Third Quartile = 106% Number of Observations = 85 Water Year = 2014 First Quartile = 99% Median = 103% Third Quartile = 106% Number of Observations = 85 Water Year = 2014 First Quartile = 99% Median = 103% Third Quartile = 106% Number of Observations = 85 Water Year = 2014 First Quartile = 99% Median = 103% Third Quartile = 106% Number of Observations = 85 Water Year = 2013 First Quartile = 95% Median = 98% Third Quartile = 102% Number of Observations = 85 Water Year = 2013 First Quartile = 95% Median = 98% Third Quartile = 102% Number of Observations = 85 Water Year = 2013 First Quartile = 95% Median = 98% Third Quartile = 102% Number of Observations = 85 Water Year = 2013 First Quartile = 95% Median = 98% Third Quartile = 102% Number of Observations = 85 Water Year = 2013 First Quartile = 95% Median = 98% Third Quartile = 102% Number of Observations = 85 Water Year = 2013 First Quartile = 95% Median = 98% Third Quartile = 102% Number of Observations = 85 Water Year = 2013 First Quartile = 95% Median = 98% Third Quartile = 102% Number of Observations = 85 Water Year = 2013 First Quartile = 95% Median = 98% Third Quartile = 102% Number of Observations = 85 Water Year = 2012 First Quartile = 99% Median = 101% Third Quartile = 105% Number of Observations = 110 Water Year = 2012 First Quartile = 99% Median = 101% Third Quartile = 105% Number of Observations = 110 Water Year = 2012 First Quartile = 99% Median = 101% Third Quartile = 105% Number of Observations = 110 Water Year = 2012 First Quartile = 99% Median = 101% Third Quartile = 105% Number of Observations = 110 Water Year = 2012 First Quartile = 99% Median = 101% Third Quartile = 105% Number of Observations = 110 Water Year = 2012 First Quartile = 99% Median = 101% Third Quartile = 105% Number of Observations = 110 Water Year = 2012 First Quartile = 99% Median = 101% Third Quartile = 105% Number of Observations = 110 Water Year = 2012 First Quartile = 99% Median = 101% Third Quartile = 105% Number of Observations = 110 Water Year = 2011 First Quartile = 98% Median = 100% Third Quartile = 102% Number of Observations = 95 Water Year = 2011 First Quartile = 98% Median = 100% Third Quartile = 102% Number of Observations = 95 Water Year = 2011 First Quartile = 98% Median = 100% Third Quartile = 102% Number of Observations = 95 Water Year = 2011 First Quartile = 98% Median = 100% Third Quartile = 102% Number of Observations = 95 Water Year = 2011 First Quartile = 98% Median = 100% Third Quartile = 102% Number of Observations = 95 Water Year = 2011 First Quartile = 98% Median = 100% Third Quartile = 102% Number of Observations = 95 Water Year = 2011 First Quartile = 98% Median = 100% Third Quartile = 102% Number of Observations = 95 Water Year = 2011 First Quartile = 98% Median = 100% Third Quartile = 102% Number of Observations = 95 Water Year = 2010 First Quartile = 101% Median = 106% Third Quartile = 110% Number of Observations = 96 Water Year = 2010 First Quartile = 101% Median = 106% Third Quartile = 110% Number of Observations = 96 Water Year = 2010 First Quartile = 101% Median = 106% Third Quartile = 110% Number of Observations = 96 Water Year = 2010 First Quartile = 101% Median = 106% Third Quartile = 110% Number of Observations = 96 Water Year = 2010 First Quartile = 101% Median = 106% Third Quartile = 110% Number of Observations = 96 Water Year = 2010 First Quartile = 101% Median = 106% Third Quartile = 110% Number of Observations = 96 Water Year = 2010 First Quartile = 101% Median = 106% Third Quartile = 110% Number of Observations = 96 Water Year = 2010 First Quartile = 101% Median = 106% Third Quartile = 110% Number of Observations = 96 Y = 1
The SGPlot Procedure

Percent Recovery Statistics for Boron, fltd, ICP-OES

Analyte Parm-meth Code Water Year # of
Samples		 25th Pctl 50th Pctl
(Median)		 75th Pctl
Boron, fltd, ICP-OES 01020PLA13 2010 96 100.6% 105.9% 110.3%
    2011 95 98.0% 99.9% 101.6%
    2012 110 98.9% 101.3% 105.0%
    2013 85 94.9% 98.4% 101.9%
    2014 85 99.1% 103.4% 106.3%
    2015 90 103.8% 108.0% 113.3%
    2016 42 102.1% 106.6% 113.4%
    2017 42 104.2% 106.5% 108.5%
    2019 58 103.6% 107.1% 109.9%
    2020 59 106.2% 108.9% 112.3%
    2021 66 103.8% 106.9% 110.0%
    2022 66 106.1% 110.7% 115.3%
    2023 66 105.8% 109.7% 113.9%
    2024 36 105.9% 108.9% 111.6%

Hover over boxplot or outliers for additional information
Chart generated 03/27/2025
Charts and data secured from this U.S. Geological Survey (USGS) web page (identified as IBSP) have not received official USGS approval and as such are provisional and subject to revision. The charts and data are released on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use.


- Boron, unfltd, ICP-MS, recov -
Lab: NWQL, PCode: 01022, MCode: PLM47
Analysis Dates: 10/06/09 through 04/30/15
Open Data Set
Boxplot Description

Water Year = 2014 plotvalue = 130% pctrecov = 136% Water Year = 2013 plotvalue = 120% pctrecov = 120% Water Year = 2013 plotvalue = 127% pctrecov = 127% Water Year = 2013 plotvalue = 129% pctrecov = 129% Water Year = 2012 plotvalue = 130% pctrecov = 242% Water Year = 2012 plotvalue = 70% pctrecov = 70% Water Year = 2011 plotvalue = 130% pctrecov = 174% Water Year = 2010 plotvalue = 124% pctrecov = 124% Water Year = 2015 First Quartile = 98% Median = 105% Third Quartile = 110% Number of Observations = 23 Water Year = 2015 First Quartile = 98% Median = 105% Third Quartile = 110% Number of Observations = 23 Water Year = 2015 First Quartile = 98% Median = 105% Third Quartile = 110% Number of Observations = 23 Water Year = 2015 First Quartile = 98% Median = 105% Third Quartile = 110% Number of Observations = 23 Water Year = 2015 First Quartile = 98% Median = 105% Third Quartile = 110% Number of Observations = 23 Water Year = 2015 First Quartile = 98% Median = 105% Third Quartile = 110% Number of Observations = 23 Water Year = 2015 First Quartile = 98% Median = 105% Third Quartile = 110% Number of Observations = 23 Water Year = 2015 First Quartile = 98% Median = 105% Third Quartile = 110% Number of Observations = 23 Water Year = 2014 First Quartile = 91% Median = 98% Third Quartile = 105% Number of Observations = 45 Water Year = 2014 First Quartile = 91% Median = 98% Third Quartile = 105% Number of Observations = 45 Water Year = 2014 First Quartile = 91% Median = 98% Third Quartile = 105% Number of Observations = 45 Water Year = 2014 First Quartile = 91% Median = 98% Third Quartile = 105% Number of Observations = 45 Water Year = 2014 First Quartile = 91% Median = 98% Third Quartile = 105% Number of Observations = 45 Water Year = 2014 First Quartile = 91% Median = 98% Third Quartile = 105% Number of Observations = 45 Water Year = 2014 First Quartile = 91% Median = 98% Third Quartile = 105% Number of Observations = 45 Water Year = 2014 First Quartile = 91% Median = 98% Third Quartile = 105% Number of Observations = 45 Water Year = 2013 First Quartile = 83% Median = 90% Third Quartile = 96% Number of Observations = 25 Water Year = 2013 First Quartile = 83% Median = 90% Third Quartile = 96% Number of Observations = 25 Water Year = 2013 First Quartile = 83% Median = 90% Third Quartile = 96% Number of Observations = 25 Water Year = 2013 First Quartile = 83% Median = 90% Third Quartile = 96% Number of Observations = 25 Water Year = 2013 First Quartile = 83% Median = 90% Third Quartile = 96% Number of Observations = 25 Water Year = 2013 First Quartile = 83% Median = 90% Third Quartile = 96% Number of Observations = 25 Water Year = 2013 First Quartile = 83% Median = 90% Third Quartile = 96% Number of Observations = 25 Water Year = 2013 First Quartile = 83% Median = 90% Third Quartile = 96% Number of Observations = 25 Water Year = 2012 First Quartile = 90% Median = 97% Third Quartile = 102% Number of Observations = 48 Water Year = 2012 First Quartile = 90% Median = 97% Third Quartile = 102% Number of Observations = 48 Water Year = 2012 First Quartile = 90% Median = 97% Third Quartile = 102% Number of Observations = 48 Water Year = 2012 First Quartile = 90% Median = 97% Third Quartile = 102% Number of Observations = 48 Water Year = 2012 First Quartile = 90% Median = 97% Third Quartile = 102% Number of Observations = 48 Water Year = 2012 First Quartile = 90% Median = 97% Third Quartile = 102% Number of Observations = 48 Water Year = 2012 First Quartile = 90% Median = 97% Third Quartile = 102% Number of Observations = 48 Water Year = 2012 First Quartile = 90% Median = 97% Third Quartile = 102% Number of Observations = 48 Water Year = 2011 First Quartile = 90% Median = 98% Third Quartile = 105% Number of Observations = 48 Water Year = 2011 First Quartile = 90% Median = 98% Third Quartile = 105% Number of Observations = 48 Water Year = 2011 First Quartile = 90% Median = 98% Third Quartile = 105% Number of Observations = 48 Water Year = 2011 First Quartile = 90% Median = 98% Third Quartile = 105% Number of Observations = 48 Water Year = 2011 First Quartile = 90% Median = 98% Third Quartile = 105% Number of Observations = 48 Water Year = 2011 First Quartile = 90% Median = 98% Third Quartile = 105% Number of Observations = 48 Water Year = 2011 First Quartile = 90% Median = 98% Third Quartile = 105% Number of Observations = 48 Water Year = 2011 First Quartile = 90% Median = 98% Third Quartile = 105% Number of Observations = 48 Water Year = 2010 First Quartile = 93% Median = 98% Third Quartile = 104% Number of Observations = 48 Water Year = 2010 First Quartile = 93% Median = 98% Third Quartile = 104% Number of Observations = 48 Water Year = 2010 First Quartile = 93% Median = 98% Third Quartile = 104% Number of Observations = 48 Water Year = 2010 First Quartile = 93% Median = 98% Third Quartile = 104% Number of Observations = 48 Water Year = 2010 First Quartile = 93% Median = 98% Third Quartile = 104% Number of Observations = 48 Water Year = 2010 First Quartile = 93% Median = 98% Third Quartile = 104% Number of Observations = 48 Water Year = 2010 First Quartile = 93% Median = 98% Third Quartile = 104% Number of Observations = 48 Water Year = 2010 First Quartile = 93% Median = 98% Third Quartile = 104% Number of Observations = 48 Water Year = 2009 First Quartile = 97% Median = 98% Third Quartile = 102% Number of Observations = 4 Water Year = 2009 First Quartile = 97% Median = 98% Third Quartile = 102% Number of Observations = 4 Water Year = 2009 First Quartile = 97% Median = 98% Third Quartile = 102% Number of Observations = 4 Water Year = 2009 First Quartile = 97% Median = 98% Third Quartile = 102% Number of Observations = 4 Water Year = 2009 First Quartile = 97% Median = 98% Third Quartile = 102% Number of Observations = 4 Water Year = 2009 First Quartile = 97% Median = 98% Third Quartile = 102% Number of Observations = 4 Water Year = 2009 First Quartile = 97% Median = 98% Third Quartile = 102% Number of Observations = 4 Water Year = 2009 First Quartile = 97% Median = 98% Third Quartile = 102% Number of Observations = 4 Y = 1
The SGPlot Procedure

Percent Recovery Statistics for Boron, unfltd, ICP-MS, recov

Analyte Parm-meth Code Water Year # of
Samples		 25th Pctl 50th Pctl
(Median)		 75th Pctl
Boron, unfltd, ICP-MS, recov 01022PLM47 2009 4 97.2% 97.7% 102.0%
    2010 48 93.2% 98.2% 104.4%
    2011 48 90.0% 97.7% 105.1%
    2012 48 90.0% 97.5% 102.3%
    2013 25 82.8% 90.2% 95.9%
    2014 45 90.7% 97.7% 105.1%
    2015 23 98.5% 104.5% 109.5%

Hover over boxplot or outliers for additional information
Chart generated 03/27/2025
Charts and data secured from this U.S. Geological Survey (USGS) web page (identified as IBSP) have not received official USGS approval and as such are provisional and subject to revision. The charts and data are released on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use.


- Boron, unfltd, ICP-MS, recov -
Lab: NWQL, PCode: 01022, MCode: PLM78
Analysis Dates: 05/12/15 through 09/25/24
Open Data Set
Boxplot Description

Water Year = 2024 plotvalue = 130% pctrecov = 130% Water Year = 2022 plotvalue = 85% pctrecov = 85% Water Year = 2021 plotvalue = 130% pctrecov = 143% Water Year = 2021 plotvalue = 130% pctrecov = 143% Water Year = 2016 plotvalue = 73% pctrecov = 73% Water Year = 2015 plotvalue = 130% pctrecov = 151% Water Year = 2024 First Quartile = 104% Median = 110% Third Quartile = 114% Number of Observations = 42 Water Year = 2024 First Quartile = 104% Median = 110% Third Quartile = 114% Number of Observations = 42 Water Year = 2024 First Quartile = 104% Median = 110% Third Quartile = 114% Number of Observations = 42 Water Year = 2024 First Quartile = 104% Median = 110% Third Quartile = 114% Number of Observations = 42 Water Year = 2024 First Quartile = 104% Median = 110% Third Quartile = 114% Number of Observations = 42 Water Year = 2024 First Quartile = 104% Median = 110% Third Quartile = 114% Number of Observations = 42 Water Year = 2024 First Quartile = 104% Median = 110% Third Quartile = 114% Number of Observations = 42 Water Year = 2024 First Quartile = 104% Median = 110% Third Quartile = 114% Number of Observations = 42 Water Year = 2023 First Quartile = 100% Median = 108% Third Quartile = 113% Number of Observations = 48 Water Year = 2023 First Quartile = 100% Median = 108% Third Quartile = 113% Number of Observations = 48 Water Year = 2023 First Quartile = 100% Median = 108% Third Quartile = 113% Number of Observations = 48 Water Year = 2023 First Quartile = 100% Median = 108% Third Quartile = 113% Number of Observations = 48 Water Year = 2023 First Quartile = 100% Median = 108% Third Quartile = 113% Number of Observations = 48 Water Year = 2023 First Quartile = 100% Median = 108% Third Quartile = 113% Number of Observations = 48 Water Year = 2023 First Quartile = 100% Median = 108% Third Quartile = 113% Number of Observations = 48 Water Year = 2023 First Quartile = 100% Median = 108% Third Quartile = 113% Number of Observations = 48 Water Year = 2022 First Quartile = 100% Median = 105% Third Quartile = 108% Number of Observations = 47 Water Year = 2022 First Quartile = 100% Median = 105% Third Quartile = 108% Number of Observations = 47 Water Year = 2022 First Quartile = 100% Median = 105% Third Quartile = 108% Number of Observations = 47 Water Year = 2022 First Quartile = 100% Median = 105% Third Quartile = 108% Number of Observations = 47 Water Year = 2022 First Quartile = 100% Median = 105% Third Quartile = 108% Number of Observations = 47 Water Year = 2022 First Quartile = 100% Median = 105% Third Quartile = 108% Number of Observations = 47 Water Year = 2022 First Quartile = 100% Median = 105% Third Quartile = 108% Number of Observations = 47 Water Year = 2022 First Quartile = 100% Median = 105% Third Quartile = 108% Number of Observations = 47 Water Year = 2021 First Quartile = 94% Median = 99% Third Quartile = 104% Number of Observations = 48 Water Year = 2021 First Quartile = 94% Median = 99% Third Quartile = 104% Number of Observations = 48 Water Year = 2021 First Quartile = 94% Median = 99% Third Quartile = 104% Number of Observations = 48 Water Year = 2021 First Quartile = 94% Median = 99% Third Quartile = 104% Number of Observations = 48 Water Year = 2021 First Quartile = 94% Median = 99% Third Quartile = 104% Number of Observations = 48 Water Year = 2021 First Quartile = 94% Median = 99% Third Quartile = 104% Number of Observations = 48 Water Year = 2021 First Quartile = 94% Median = 99% Third Quartile = 104% Number of Observations = 48 Water Year = 2021 First Quartile = 94% Median = 99% Third Quartile = 104% Number of Observations = 48 Water Year = 2020 First Quartile = 96% Median = 102% Third Quartile = 113% Number of Observations = 36 Water Year = 2020 First Quartile = 96% Median = 102% Third Quartile = 113% Number of Observations = 36 Water Year = 2020 First Quartile = 96% Median = 102% Third Quartile = 113% Number of Observations = 36 Water Year = 2020 First Quartile = 96% Median = 102% Third Quartile = 113% Number of Observations = 36 Water Year = 2020 First Quartile = 96% Median = 102% Third Quartile = 113% Number of Observations = 36 Water Year = 2020 First Quartile = 96% Median = 102% Third Quartile = 113% Number of Observations = 36 Water Year = 2020 First Quartile = 96% Median = 102% Third Quartile = 113% Number of Observations = 36 Water Year = 2020 First Quartile = 96% Median = 102% Third Quartile = 113% Number of Observations = 36 Water Year = 2019 First Quartile = 97% Median = 100% Third Quartile = 109% Number of Observations = 32 Water Year = 2019 First Quartile = 97% Median = 100% Third Quartile = 109% Number of Observations = 32 Water Year = 2019 First Quartile = 97% Median = 100% Third Quartile = 109% Number of Observations = 32 Water Year = 2019 First Quartile = 97% Median = 100% Third Quartile = 109% Number of Observations = 32 Water Year = 2019 First Quartile = 97% Median = 100% Third Quartile = 109% Number of Observations = 32 Water Year = 2019 First Quartile = 97% Median = 100% Third Quartile = 109% Number of Observations = 32 Water Year = 2019 First Quartile = 97% Median = 100% Third Quartile = 109% Number of Observations = 32 Water Year = 2019 First Quartile = 97% Median = 100% Third Quartile = 109% Number of Observations = 32 Water Year = 2017 First Quartile = 97% Median = 102% Third Quartile = 106% Number of Observations = 41 Water Year = 2017 First Quartile = 97% Median = 102% Third Quartile = 106% Number of Observations = 41 Water Year = 2017 First Quartile = 97% Median = 102% Third Quartile = 106% Number of Observations = 41 Water Year = 2017 First Quartile = 97% Median = 102% Third Quartile = 106% Number of Observations = 41 Water Year = 2017 First Quartile = 97% Median = 102% Third Quartile = 106% Number of Observations = 41 Water Year = 2017 First Quartile = 97% Median = 102% Third Quartile = 106% Number of Observations = 41 Water Year = 2017 First Quartile = 97% Median = 102% Third Quartile = 106% Number of Observations = 41 Water Year = 2017 First Quartile = 97% Median = 102% Third Quartile = 106% Number of Observations = 41 Water Year = 2016 First Quartile = 96% Median = 101% Third Quartile = 109% Number of Observations = 42 Water Year = 2016 First Quartile = 96% Median = 101% Third Quartile = 109% Number of Observations = 42 Water Year = 2016 First Quartile = 96% Median = 101% Third Quartile = 109% Number of Observations = 42 Water Year = 2016 First Quartile = 96% Median = 101% Third Quartile = 109% Number of Observations = 42 Water Year = 2016 First Quartile = 96% Median = 101% Third Quartile = 109% Number of Observations = 42 Water Year = 2016 First Quartile = 96% Median = 101% Third Quartile = 109% Number of Observations = 42 Water Year = 2016 First Quartile = 96% Median = 101% Third Quartile = 109% Number of Observations = 42 Water Year = 2016 First Quartile = 96% Median = 101% Third Quartile = 109% Number of Observations = 42 Water Year = 2015 First Quartile = 85% Median = 93% Third Quartile = 95% Number of Observations = 17 Water Year = 2015 First Quartile = 85% Median = 93% Third Quartile = 95% Number of Observations = 17 Water Year = 2015 First Quartile = 85% Median = 93% Third Quartile = 95% Number of Observations = 17 Water Year = 2015 First Quartile = 85% Median = 93% Third Quartile = 95% Number of Observations = 17 Water Year = 2015 First Quartile = 85% Median = 93% Third Quartile = 95% Number of Observations = 17 Water Year = 2015 First Quartile = 85% Median = 93% Third Quartile = 95% Number of Observations = 17 Water Year = 2015 First Quartile = 85% Median = 93% Third Quartile = 95% Number of Observations = 17 Water Year = 2015 First Quartile = 85% Median = 93% Third Quartile = 95% Number of Observations = 17 Y = 1
The SGPlot Procedure

Percent Recovery Statistics for Boron, unfltd, ICP-MS, recov

Analyte Parm-meth Code Water Year # of
Samples		 25th Pctl 50th Pctl
(Median)		 75th Pctl
Boron, unfltd, ICP-MS, recov 01022PLM78 2015 17 85.4% 92.6% 95.0%
    2016 42 95.9% 101.2% 109.4%
    2017 41 97.1% 102.1% 105.8%
    2019 32 97.2% 100.0% 109.5%
    2020 36 96.3% 101.9% 113.3%
    2021 48 93.9% 98.8% 104.1%
    2022 47 100.0% 105.3% 108.3%
    2023 48 100.3% 107.7% 113.0%
    2024 42 103.6% 109.7% 113.5%

Hover over boxplot or outliers for additional information
Chart generated 03/27/2025
Charts and data secured from this U.S. Geological Survey (USGS) web page (identified as IBSP) have not received official USGS approval and as such are provisional and subject to revision. The charts and data are released on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use.


- Boron, unfltd, ICP-OES, recov -
Lab: NWQL, PCode: 01022, MCode: PLA15
Analysis Dates: 11/10/12 through 02/10/14
Open Data Set
Boxplot Description

Water Year = 2013 plotvalue = 106% pctrecov = 106% Water Year = 2013 plotvalue = 110% pctrecov = 110% Water Year = 2013 plotvalue = 70% pctrecov = 70% Water Year = 2013 plotvalue = 70% pctrecov = 70% Water Year = 2013 First Quartile = 88% Median = 91% Third Quartile = 94% Number of Observations = 42 Water Year = 2013 First Quartile = 88% Median = 91% Third Quartile = 94% Number of Observations = 42 Water Year = 2013 First Quartile = 88% Median = 91% Third Quartile = 94% Number of Observations = 42 Water Year = 2013 First Quartile = 88% Median = 91% Third Quartile = 94% Number of Observations = 42 Water Year = 2013 First Quartile = 88% Median = 91% Third Quartile = 94% Number of Observations = 42 Water Year = 2013 First Quartile = 88% Median = 91% Third Quartile = 94% Number of Observations = 42 Water Year = 2013 First Quartile = 88% Median = 91% Third Quartile = 94% Number of Observations = 42 Water Year = 2013 First Quartile = 88% Median = 91% Third Quartile = 94% Number of Observations = 42 Y = 1
The SGPlot Procedure

Percent Recovery Statistics for Boron, unfltd, ICP-OES, recov

Analyte Parm-meth Code Water Year # of
Samples		 25th Pctl 50th Pctl
(Median)		 75th Pctl
Boron, unfltd, ICP-OES, recov 01022PLA15 2013 42 88.0% 91.4% 93.8%

Hover over boxplot or outliers for additional information
Chart generated 03/27/2025
Charts and data secured from this U.S. Geological Survey (USGS) web page (identified as IBSP) have not received official USGS approval and as such are provisional and subject to revision. The charts and data are released on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use.


- Cadmium, fltd, ICP-MS -
Lab: NWQL, PCode: 01025, MCode: PLM43
Analysis Dates: 10/09/09 through 09/28/24
Open Data Set
Boxplot Description

Water Year = 2024 plotvalue = 109% pctrecov = 109% Water Year = 2022 plotvalue = 114% pctrecov = 114% Water Year = 2022 plotvalue = 115% pctrecov = 115% Water Year = 2022 plotvalue = 125% pctrecov = 125% Water Year = 2021 plotvalue = 109% pctrecov = 109% Water Year = 2021 plotvalue = 112% pctrecov = 112% Water Year = 2021 plotvalue = 112% pctrecov = 112% Water Year = 2021 plotvalue = 113% pctrecov = 113% Water Year = 2021 plotvalue = 125% pctrecov = 125% Water Year = 2021 plotvalue = 130% pctrecov = 173% Water Year = 2021 plotvalue = 130% pctrecov = 158% Water Year = 2021 plotvalue = 94% pctrecov = 94% Water Year = 2021 plotvalue = 85% pctrecov = 85% Water Year = 2020 plotvalue = 111% pctrecov = 111% Water Year = 2020 plotvalue = 112% pctrecov = 112% Water Year = 2020 plotvalue = 112% pctrecov = 112% Water Year = 2020 plotvalue = 113% pctrecov = 113% Water Year = 2020 plotvalue = 114% pctrecov = 114% Water Year = 2020 plotvalue = 115% pctrecov = 115% Water Year = 2020 plotvalue = 82% pctrecov = 82% Water Year = 2019 plotvalue = 109% pctrecov = 109% Water Year = 2019 plotvalue = 110% pctrecov = 110% Water Year = 2019 plotvalue = 111% pctrecov = 111% Water Year = 2019 plotvalue = 114% pctrecov = 114% Water Year = 2019 plotvalue = 122% pctrecov = 122% Water Year = 2019 plotvalue = 130% pctrecov = 158% Water Year = 2019 plotvalue = 92% pctrecov = 92% Water Year = 2019 plotvalue = 91% pctrecov = 91% Water Year = 2019 plotvalue = 91% pctrecov = 91% Water Year = 2019 plotvalue = 87% pctrecov = 87% Water Year = 2019 plotvalue = 70% pctrecov = 6% Water Year = 2017 plotvalue = 115% pctrecov = 115% Water Year = 2017 plotvalue = 117% pctrecov = 117% Water Year = 2017 plotvalue = 130% pctrecov = 135% Water Year = 2017 plotvalue = 130% pctrecov = 132% Water Year = 2017 plotvalue = 89% pctrecov = 89% Water Year = 2017 plotvalue = 88% pctrecov = 88% Water Year = 2017 plotvalue = 87% pctrecov = 87% Water Year = 2017 plotvalue = 84% pctrecov = 84% Water Year = 2016 plotvalue = 130% pctrecov = 150% Water Year = 2016 plotvalue = 70% pctrecov = 4% Water Year = 2016 plotvalue = 70% pctrecov = 2% Water Year = 2015 plotvalue = 70% pctrecov = 8% Water Year = 2014 plotvalue = 70% pctrecov = 7% Water Year = 2014 plotvalue = 70% pctrecov = 12% Water Year = 2013 plotvalue = 70% pctrecov = 4% Water Year = 2012 plotvalue = 88% pctrecov = 88% Water Year = 2012 plotvalue = 70% pctrecov = 0% Water Year = 2012 plotvalue = 70% pctrecov = 1% Water Year = 2012 plotvalue = 70% pctrecov = 0% Water Year = 2011 plotvalue = 117% pctrecov = 117% Water Year = 2011 plotvalue = 70% pctrecov = 2% Water Year = 2011 plotvalue = 70% pctrecov = 2% Water Year = 2010 plotvalue = 70% pctrecov = 11% Water Year = 2024 First Quartile = 98% Median = 100% Third Quartile = 102% Number of Observations = 72 Water Year = 2024 First Quartile = 98% Median = 100% Third Quartile = 102% Number of Observations = 72 Water Year = 2024 First Quartile = 98% Median = 100% Third Quartile = 102% Number of Observations = 72 Water Year = 2024 First Quartile = 98% Median = 100% Third Quartile = 102% Number of Observations = 72 Water Year = 2024 First Quartile = 98% Median = 100% Third Quartile = 102% Number of Observations = 72 Water Year = 2024 First Quartile = 98% Median = 100% Third Quartile = 102% Number of Observations = 72 Water Year = 2024 First Quartile = 98% Median = 100% Third Quartile = 102% Number of Observations = 72 Water Year = 2024 First Quartile = 98% Median = 100% Third Quartile = 102% Number of Observations = 72 Water Year = 2023 First Quartile = 97% Median = 99% Third Quartile = 102% Number of Observations = 89 Water Year = 2023 First Quartile = 97% Median = 99% Third Quartile = 102% Number of Observations = 89 Water Year = 2023 First Quartile = 97% Median = 99% Third Quartile = 102% Number of Observations = 89 Water Year = 2023 First Quartile = 97% Median = 99% Third Quartile = 102% Number of Observations = 89 Water Year = 2023 First Quartile = 97% Median = 99% Third Quartile = 102% Number of Observations = 89 Water Year = 2023 First Quartile = 97% Median = 99% Third Quartile = 102% Number of Observations = 89 Water Year = 2023 First Quartile = 97% Median = 99% Third Quartile = 102% Number of Observations = 89 Water Year = 2023 First Quartile = 97% Median = 99% Third Quartile = 102% Number of Observations = 89 Water Year = 2022 First Quartile = 98% Median = 100% Third Quartile = 102% Number of Observations = 75 Water Year = 2022 First Quartile = 98% Median = 100% Third Quartile = 102% Number of Observations = 75 Water Year = 2022 First Quartile = 98% Median = 100% Third Quartile = 102% Number of Observations = 75 Water Year = 2022 First Quartile = 98% Median = 100% Third Quartile = 102% Number of Observations = 75 Water Year = 2022 First Quartile = 98% Median = 100% Third Quartile = 102% Number of Observations = 75 Water Year = 2022 First Quartile = 98% Median = 100% Third Quartile = 102% Number of Observations = 75 Water Year = 2022 First Quartile = 98% Median = 100% Third Quartile = 102% Number of Observations = 75 Water Year = 2022 First Quartile = 98% Median = 100% Third Quartile = 102% Number of Observations = 75 Water Year = 2021 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 81 Water Year = 2021 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 81 Water Year = 2021 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 81 Water Year = 2021 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 81 Water Year = 2021 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 81 Water Year = 2021 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 81 Water Year = 2021 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 81 Water Year = 2021 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 81 Water Year = 2020 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 76 Water Year = 2020 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 76 Water Year = 2020 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 76 Water Year = 2020 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 76 Water Year = 2020 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 76 Water Year = 2020 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 76 Water Year = 2020 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 76 Water Year = 2020 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 76 Water Year = 2019 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 78 Water Year = 2019 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 78 Water Year = 2019 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 78 Water Year = 2019 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 78 Water Year = 2019 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 78 Water Year = 2019 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 78 Water Year = 2019 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 78 Water Year = 2019 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 78 Water Year = 2017 First Quartile = 100% Median = 102% Third Quartile = 106% Number of Observations = 90 Water Year = 2017 First Quartile = 100% Median = 102% Third Quartile = 106% Number of Observations = 90 Water Year = 2017 First Quartile = 100% Median = 102% Third Quartile = 106% Number of Observations = 90 Water Year = 2017 First Quartile = 100% Median = 102% Third Quartile = 106% Number of Observations = 90 Water Year = 2017 First Quartile = 100% Median = 102% Third Quartile = 106% Number of Observations = 90 Water Year = 2017 First Quartile = 100% Median = 102% Third Quartile = 106% Number of Observations = 90 Water Year = 2017 First Quartile = 100% Median = 102% Third Quartile = 106% Number of Observations = 90 Water Year = 2017 First Quartile = 100% Median = 102% Third Quartile = 106% Number of Observations = 90 Water Year = 2016 First Quartile = 100% Median = 103% Third Quartile = 109% Number of Observations = 75 Water Year = 2016 First Quartile = 100% Median = 103% Third Quartile = 109% Number of Observations = 75 Water Year = 2016 First Quartile = 100% Median = 103% Third Quartile = 109% Number of Observations = 75 Water Year = 2016 First Quartile = 100% Median = 103% Third Quartile = 109% Number of Observations = 75 Water Year = 2016 First Quartile = 100% Median = 103% Third Quartile = 109% Number of Observations = 75 Water Year = 2016 First Quartile = 100% Median = 103% Third Quartile = 109% Number of Observations = 75 Water Year = 2016 First Quartile = 100% Median = 103% Third Quartile = 109% Number of Observations = 75 Water Year = 2016 First Quartile = 100% Median = 103% Third Quartile = 109% Number of Observations = 75 Water Year = 2015 First Quartile = 104% Median = 109% Third Quartile = 114% Number of Observations = 76 Water Year = 2015 First Quartile = 104% Median = 109% Third Quartile = 114% Number of Observations = 76 Water Year = 2015 First Quartile = 104% Median = 109% Third Quartile = 114% Number of Observations = 76 Water Year = 2015 First Quartile = 104% Median = 109% Third Quartile = 114% Number of Observations = 76 Water Year = 2015 First Quartile = 104% Median = 109% Third Quartile = 114% Number of Observations = 76 Water Year = 2015 First Quartile = 104% Median = 109% Third Quartile = 114% Number of Observations = 76 Water Year = 2015 First Quartile = 104% Median = 109% Third Quartile = 114% Number of Observations = 76 Water Year = 2015 First Quartile = 104% Median = 109% Third Quartile = 114% Number of Observations = 76 Water Year = 2014 First Quartile = 99% Median = 103% Third Quartile = 106% Number of Observations = 69 Water Year = 2014 First Quartile = 99% Median = 103% Third Quartile = 106% Number of Observations = 69 Water Year = 2014 First Quartile = 99% Median = 103% Third Quartile = 106% Number of Observations = 69 Water Year = 2014 First Quartile = 99% Median = 103% Third Quartile = 106% Number of Observations = 69 Water Year = 2014 First Quartile = 99% Median = 103% Third Quartile = 106% Number of Observations = 69 Water Year = 2014 First Quartile = 99% Median = 103% Third Quartile = 106% Number of Observations = 69 Water Year = 2014 First Quartile = 99% Median = 103% Third Quartile = 106% Number of Observations = 69 Water Year = 2014 First Quartile = 99% Median = 103% Third Quartile = 106% Number of Observations = 69 Water Year = 2013 First Quartile = 102% Median = 106% Third Quartile = 109% Number of Observations = 108 Water Year = 2013 First Quartile = 102% Median = 106% Third Quartile = 109% Number of Observations = 108 Water Year = 2013 First Quartile = 102% Median = 106% Third Quartile = 109% Number of Observations = 108 Water Year = 2013 First Quartile = 102% Median = 106% Third Quartile = 109% Number of Observations = 108 Water Year = 2013 First Quartile = 102% Median = 106% Third Quartile = 109% Number of Observations = 108 Water Year = 2013 First Quartile = 102% Median = 106% Third Quartile = 109% Number of Observations = 108 Water Year = 2013 First Quartile = 102% Median = 106% Third Quartile = 109% Number of Observations = 108 Water Year = 2013 First Quartile = 102% Median = 106% Third Quartile = 109% Number of Observations = 108 Water Year = 2012 First Quartile = 105% Median = 109% Third Quartile = 112% Number of Observations = 132 Water Year = 2012 First Quartile = 105% Median = 109% Third Quartile = 112% Number of Observations = 132 Water Year = 2012 First Quartile = 105% Median = 109% Third Quartile = 112% Number of Observations = 132 Water Year = 2012 First Quartile = 105% Median = 109% Third Quartile = 112% Number of Observations = 132 Water Year = 2012 First Quartile = 105% Median = 109% Third Quartile = 112% Number of Observations = 132 Water Year = 2012 First Quartile = 105% Median = 109% Third Quartile = 112% Number of Observations = 132 Water Year = 2012 First Quartile = 105% Median = 109% Third Quartile = 112% Number of Observations = 132 Water Year = 2012 First Quartile = 105% Median = 109% Third Quartile = 112% Number of Observations = 132 Water Year = 2011 First Quartile = 99% Median = 102% Third Quartile = 106% Number of Observations = 131 Water Year = 2011 First Quartile = 99% Median = 102% Third Quartile = 106% Number of Observations = 131 Water Year = 2011 First Quartile = 99% Median = 102% Third Quartile = 106% Number of Observations = 131 Water Year = 2011 First Quartile = 99% Median = 102% Third Quartile = 106% Number of Observations = 131 Water Year = 2011 First Quartile = 99% Median = 102% Third Quartile = 106% Number of Observations = 131 Water Year = 2011 First Quartile = 99% Median = 102% Third Quartile = 106% Number of Observations = 131 Water Year = 2011 First Quartile = 99% Median = 102% Third Quartile = 106% Number of Observations = 131 Water Year = 2011 First Quartile = 99% Median = 102% Third Quartile = 106% Number of Observations = 131 Water Year = 2010 First Quartile = 104% Median = 110% Third Quartile = 116% Number of Observations = 132 Water Year = 2010 First Quartile = 104% Median = 110% Third Quartile = 116% Number of Observations = 132 Water Year = 2010 First Quartile = 104% Median = 110% Third Quartile = 116% Number of Observations = 132 Water Year = 2010 First Quartile = 104% Median = 110% Third Quartile = 116% Number of Observations = 132 Water Year = 2010 First Quartile = 104% Median = 110% Third Quartile = 116% Number of Observations = 132 Water Year = 2010 First Quartile = 104% Median = 110% Third Quartile = 116% Number of Observations = 132 Water Year = 2010 First Quartile = 104% Median = 110% Third Quartile = 116% Number of Observations = 132 Water Year = 2010 First Quartile = 104% Median = 110% Third Quartile = 116% Number of Observations = 132 Y = 1
The SGPlot Procedure

Percent Recovery Statistics for Cadmium, fltd, ICP-MS

Analyte Parm-meth Code Water Year # of
Samples		 25th Pctl 50th Pctl
(Median)		 75th Pctl
Cadmium, fltd, ICP-MS 01025PLM43 2010 132 103.9% 109.7% 115.7%
    2011 131 98.6% 101.7% 105.6%
    2012 132 105.2% 108.5% 111.9%
    2013 108 102.4% 106.1% 108.5%
    2014 69 99.3% 103.0% 106.4%
    2015 76 104.1% 109.5% 114.4%
    2016 75 99.7% 103.1% 108.9%
    2017 90 100.5% 102.2% 106.1%
    2019 78 98.8% 100.6% 102.8%
    2020 76 98.9% 101.2% 102.6%
    2021 81 99.3% 100.8% 102.6%
    2022 75 97.8% 99.7% 102.3%
    2023 89 97.1% 99.1% 101.8%
    2024 72 98.0% 100.4% 102.4%

Hover over boxplot or outliers for additional information
Chart generated 03/27/2025
Charts and data secured from this U.S. Geological Survey (USGS) web page (identified as IBSP) have not received official USGS approval and as such are provisional and subject to revision. The charts and data are released on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use.


- Cadmium, unfltd, ICP-MS, recov -
Lab: NWQL, PCode: 01027, MCode: PLM47
Analysis Dates: 10/05/09 through 04/30/15
Open Data Set
Boxplot Description

Water Year = 2014 plotvalue = 106% pctrecov = 106% Water Year = 2014 plotvalue = 130% pctrecov = 683% Water Year = 2014 plotvalue = 90% pctrecov = 90% Water Year = 2014 plotvalue = 87% pctrecov = 87% Water Year = 2013 plotvalue = 87% pctrecov = 87% Water Year = 2011 plotvalue = 113% pctrecov = 113% Water Year = 2011 plotvalue = 90% pctrecov = 90% Water Year = 2010 plotvalue = 110% pctrecov = 110% Water Year = 2010 plotvalue = 112% pctrecov = 112% Water Year = 2010 plotvalue = 113% pctrecov = 113% Water Year = 2010 plotvalue = 113% pctrecov = 113% Water Year = 2010 plotvalue = 116% pctrecov = 116% Water Year = 2010 plotvalue = 117% pctrecov = 117% Water Year = 2010 plotvalue = 118% pctrecov = 118% Water Year = 2010 plotvalue = 118% pctrecov = 118% Water Year = 2010 plotvalue = 123% pctrecov = 123% Water Year = 2010 plotvalue = 126% pctrecov = 126% Water Year = 2010 plotvalue = 126% pctrecov = 126% Water Year = 2010 plotvalue = 126% pctrecov = 126% Water Year = 2010 plotvalue = 127% pctrecov = 127% Water Year = 2010 plotvalue = 130% pctrecov = 341% Water Year = 2010 plotvalue = 130% pctrecov = 132% Water Year = 2010 plotvalue = 130% pctrecov = 175% Water Year = 2010 plotvalue = 130% pctrecov = 138% Water Year = 2015 First Quartile = 98% Median = 101% Third Quartile = 101% Number of Observations = 26 Water Year = 2015 First Quartile = 98% Median = 101% Third Quartile = 101% Number of Observations = 26 Water Year = 2015 First Quartile = 98% Median = 101% Third Quartile = 101% Number of Observations = 26 Water Year = 2015 First Quartile = 98% Median = 101% Third Quartile = 101% Number of Observations = 26 Water Year = 2015 First Quartile = 98% Median = 101% Third Quartile = 101% Number of Observations = 26 Water Year = 2015 First Quartile = 98% Median = 101% Third Quartile = 101% Number of Observations = 26 Water Year = 2015 First Quartile = 98% Median = 101% Third Quartile = 101% Number of Observations = 26 Water Year = 2015 First Quartile = 98% Median = 101% Third Quartile = 101% Number of Observations = 26 Water Year = 2014 First Quartile = 96% Median = 98% Third Quartile = 100% Number of Observations = 70 Water Year = 2014 First Quartile = 96% Median = 98% Third Quartile = 100% Number of Observations = 70 Water Year = 2014 First Quartile = 96% Median = 98% Third Quartile = 100% Number of Observations = 70 Water Year = 2014 First Quartile = 96% Median = 98% Third Quartile = 100% Number of Observations = 70 Water Year = 2014 First Quartile = 96% Median = 98% Third Quartile = 100% Number of Observations = 70 Water Year = 2014 First Quartile = 96% Median = 98% Third Quartile = 100% Number of Observations = 70 Water Year = 2014 First Quartile = 96% Median = 98% Third Quartile = 100% Number of Observations = 70 Water Year = 2014 First Quartile = 96% Median = 98% Third Quartile = 100% Number of Observations = 70 Water Year = 2013 First Quartile = 94% Median = 96% Third Quartile = 98% Number of Observations = 108 Water Year = 2013 First Quartile = 94% Median = 96% Third Quartile = 98% Number of Observations = 108 Water Year = 2013 First Quartile = 94% Median = 96% Third Quartile = 98% Number of Observations = 108 Water Year = 2013 First Quartile = 94% Median = 96% Third Quartile = 98% Number of Observations = 108 Water Year = 2013 First Quartile = 94% Median = 96% Third Quartile = 98% Number of Observations = 108 Water Year = 2013 First Quartile = 94% Median = 96% Third Quartile = 98% Number of Observations = 108 Water Year = 2013 First Quartile = 94% Median = 96% Third Quartile = 98% Number of Observations = 108 Water Year = 2013 First Quartile = 94% Median = 96% Third Quartile = 98% Number of Observations = 108 Water Year = 2012 First Quartile = 94% Median = 96% Third Quartile = 98% Number of Observations = 83 Water Year = 2012 First Quartile = 94% Median = 96% Third Quartile = 98% Number of Observations = 83 Water Year = 2012 First Quartile = 94% Median = 96% Third Quartile = 98% Number of Observations = 83 Water Year = 2012 First Quartile = 94% Median = 96% Third Quartile = 98% Number of Observations = 83 Water Year = 2012 First Quartile = 94% Median = 96% Third Quartile = 98% Number of Observations = 83 Water Year = 2012 First Quartile = 94% Median = 96% Third Quartile = 98% Number of Observations = 83 Water Year = 2012 First Quartile = 94% Median = 96% Third Quartile = 98% Number of Observations = 83 Water Year = 2012 First Quartile = 94% Median = 96% Third Quartile = 98% Number of Observations = 83 Water Year = 2011 First Quartile = 95% Median = 97% Third Quartile = 98% Number of Observations = 130 Water Year = 2011 First Quartile = 95% Median = 97% Third Quartile = 98% Number of Observations = 130 Water Year = 2011 First Quartile = 95% Median = 97% Third Quartile = 98% Number of Observations = 130 Water Year = 2011 First Quartile = 95% Median = 97% Third Quartile = 98% Number of Observations = 130 Water Year = 2011 First Quartile = 95% Median = 97% Third Quartile = 98% Number of Observations = 130 Water Year = 2011 First Quartile = 95% Median = 97% Third Quartile = 98% Number of Observations = 130 Water Year = 2011 First Quartile = 95% Median = 97% Third Quartile = 98% Number of Observations = 130 Water Year = 2011 First Quartile = 95% Median = 97% Third Quartile = 98% Number of Observations = 130 Water Year = 2010 First Quartile = 94% Median = 97% Third Quartile = 100% Number of Observations = 131 Water Year = 2010 First Quartile = 94% Median = 97% Third Quartile = 100% Number of Observations = 131 Water Year = 2010 First Quartile = 94% Median = 97% Third Quartile = 100% Number of Observations = 131 Water Year = 2010 First Quartile = 94% Median = 97% Third Quartile = 100% Number of Observations = 131 Water Year = 2010 First Quartile = 94% Median = 97% Third Quartile = 100% Number of Observations = 131 Water Year = 2010 First Quartile = 94% Median = 97% Third Quartile = 100% Number of Observations = 131 Water Year = 2010 First Quartile = 94% Median = 97% Third Quartile = 100% Number of Observations = 131 Water Year = 2010 First Quartile = 94% Median = 97% Third Quartile = 100% Number of Observations = 131 Water Year = 2009 First Quartile = 97% Median = 98% Third Quartile = 118% Number of Observations = 9 Water Year = 2009 First Quartile = 97% Median = 98% Third Quartile = 118% Number of Observations = 9 Water Year = 2009 First Quartile = 97% Median = 98% Third Quartile = 118% Number of Observations = 9 Water Year = 2009 First Quartile = 97% Median = 98% Third Quartile = 118% Number of Observations = 9 Water Year = 2009 First Quartile = 97% Median = 98% Third Quartile = 118% Number of Observations = 9 Water Year = 2009 First Quartile = 97% Median = 98% Third Quartile = 118% Number of Observations = 9 Water Year = 2009 First Quartile = 97% Median = 98% Third Quartile = 118% Number of Observations = 9 Water Year = 2009 First Quartile = 97% Median = 98% Third Quartile = 118% Number of Observations = 9 Y = 1
The SGPlot Procedure

Percent Recovery Statistics for Cadmium, unfltd, ICP-MS, recov

Analyte Parm-meth Code Water Year # of
Samples		 25th Pctl 50th Pctl
(Median)		 75th Pctl
Cadmium, unfltd, ICP-MS, recov 01027PLM47 2009 9 96.6% 97.8% 118.2%
    2010 131 94.2% 96.8% 100.0%
    2011 130 95.0% 96.8% 98.2%
    2012 83 94.4% 96.0% 97.8%
    2013 108 94.2% 96.3% 98.5%
    2014 70 95.9% 97.8% 99.8%
    2015 26 97.6% 100.6% 101.3%

Hover over boxplot or outliers for additional information
Chart generated 03/27/2025
Charts and data secured from this U.S. Geological Survey (USGS) web page (identified as IBSP) have not received official USGS approval and as such are provisional and subject to revision. The charts and data are released on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use.


- Cadmium, unfltd, ICP-MS, recov -
Lab: NWQL, PCode: 01027, MCode: PLM78
Analysis Dates: 05/12/15 through 09/25/24
Open Data Set
Boxplot Description

Water Year = 2024 plotvalue = 111% pctrecov = 111% Water Year = 2024 plotvalue = 122% pctrecov = 122% Water Year = 2023 plotvalue = 91% pctrecov = 91% Water Year = 2023 plotvalue = 88% pctrecov = 88% Water Year = 2022 plotvalue = 110% pctrecov = 110% Water Year = 2022 plotvalue = 130% pctrecov = 131% Water Year = 2022 plotvalue = 92% pctrecov = 92% Water Year = 2021 plotvalue = 109% pctrecov = 109% Water Year = 2021 plotvalue = 129% pctrecov = 129% Water Year = 2021 plotvalue = 93% pctrecov = 93% Water Year = 2020 plotvalue = 110% pctrecov = 110% Water Year = 2020 plotvalue = 111% pctrecov = 111% Water Year = 2019 plotvalue = 108% pctrecov = 108% Water Year = 2019 plotvalue = 114% pctrecov = 114% Water Year = 2019 plotvalue = 93% pctrecov = 93% Water Year = 2017 plotvalue = 117% pctrecov = 117% Water Year = 2017 plotvalue = 130% pctrecov = 147% Water Year = 2017 plotvalue = 130% pctrecov = 158% Water Year = 2017 plotvalue = 130% pctrecov = 135% Water Year = 2017 plotvalue = 130% pctrecov = 147% Water Year = 2017 plotvalue = 130% pctrecov = 158% Water Year = 2017 plotvalue = 90% pctrecov = 90% Water Year = 2016 plotvalue = 110% pctrecov = 110% Water Year = 2016 plotvalue = 112% pctrecov = 112% Water Year = 2016 plotvalue = 130% pctrecov = 150% Water Year = 2024 First Quartile = 99% Median = 102% Third Quartile = 104% Number of Observations = 42 Water Year = 2024 First Quartile = 99% Median = 102% Third Quartile = 104% Number of Observations = 42 Water Year = 2024 First Quartile = 99% Median = 102% Third Quartile = 104% Number of Observations = 42 Water Year = 2024 First Quartile = 99% Median = 102% Third Quartile = 104% Number of Observations = 42 Water Year = 2024 First Quartile = 99% Median = 102% Third Quartile = 104% Number of Observations = 42 Water Year = 2024 First Quartile = 99% Median = 102% Third Quartile = 104% Number of Observations = 42 Water Year = 2024 First Quartile = 99% Median = 102% Third Quartile = 104% Number of Observations = 42 Water Year = 2024 First Quartile = 99% Median = 102% Third Quartile = 104% Number of Observations = 42 Water Year = 2023 First Quartile = 99% Median = 100% Third Quartile = 103% Number of Observations = 48 Water Year = 2023 First Quartile = 99% Median = 100% Third Quartile = 103% Number of Observations = 48 Water Year = 2023 First Quartile = 99% Median = 100% Third Quartile = 103% Number of Observations = 48 Water Year = 2023 First Quartile = 99% Median = 100% Third Quartile = 103% Number of Observations = 48 Water Year = 2023 First Quartile = 99% Median = 100% Third Quartile = 103% Number of Observations = 48 Water Year = 2023 First Quartile = 99% Median = 100% Third Quartile = 103% Number of Observations = 48 Water Year = 2023 First Quartile = 99% Median = 100% Third Quartile = 103% Number of Observations = 48 Water Year = 2023 First Quartile = 99% Median = 100% Third Quartile = 103% Number of Observations = 48 Water Year = 2022 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 41 Water Year = 2022 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 41 Water Year = 2022 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 41 Water Year = 2022 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 41 Water Year = 2022 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 41 Water Year = 2022 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 41 Water Year = 2022 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 41 Water Year = 2022 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 41 Water Year = 2021 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 42 Water Year = 2021 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 42 Water Year = 2021 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 42 Water Year = 2021 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 42 Water Year = 2021 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 42 Water Year = 2021 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 42 Water Year = 2021 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 42 Water Year = 2021 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 42 Water Year = 2020 First Quartile = 99% Median = 101% Third Quartile = 102% Number of Observations = 39 Water Year = 2020 First Quartile = 99% Median = 101% Third Quartile = 102% Number of Observations = 39 Water Year = 2020 First Quartile = 99% Median = 101% Third Quartile = 102% Number of Observations = 39 Water Year = 2020 First Quartile = 99% Median = 101% Third Quartile = 102% Number of Observations = 39 Water Year = 2020 First Quartile = 99% Median = 101% Third Quartile = 102% Number of Observations = 39 Water Year = 2020 First Quartile = 99% Median = 101% Third Quartile = 102% Number of Observations = 39 Water Year = 2020 First Quartile = 99% Median = 101% Third Quartile = 102% Number of Observations = 39 Water Year = 2020 First Quartile = 99% Median = 101% Third Quartile = 102% Number of Observations = 39 Water Year = 2019 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 55 Water Year = 2019 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 55 Water Year = 2019 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 55 Water Year = 2019 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 55 Water Year = 2019 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 55 Water Year = 2019 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 55 Water Year = 2019 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 55 Water Year = 2019 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 55 Water Year = 2017 First Quartile = 100% Median = 103% Third Quartile = 105% Number of Observations = 66 Water Year = 2017 First Quartile = 100% Median = 103% Third Quartile = 105% Number of Observations = 66 Water Year = 2017 First Quartile = 100% Median = 103% Third Quartile = 105% Number of Observations = 66 Water Year = 2017 First Quartile = 100% Median = 103% Third Quartile = 105% Number of Observations = 66 Water Year = 2017 First Quartile = 100% Median = 103% Third Quartile = 105% Number of Observations = 66 Water Year = 2017 First Quartile = 100% Median = 103% Third Quartile = 105% Number of Observations = 66 Water Year = 2017 First Quartile = 100% Median = 103% Third Quartile = 105% Number of Observations = 66 Water Year = 2017 First Quartile = 100% Median = 103% Third Quartile = 105% Number of Observations = 66 Water Year = 2016 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 55 Water Year = 2016 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 55 Water Year = 2016 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 55 Water Year = 2016 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 55 Water Year = 2016 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 55 Water Year = 2016 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 55 Water Year = 2016 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 55 Water Year = 2016 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 55 Water Year = 2015 First Quartile = 95% Median = 99% Third Quartile = 102% Number of Observations = 30 Water Year = 2015 First Quartile = 95% Median = 99% Third Quartile = 102% Number of Observations = 30 Water Year = 2015 First Quartile = 95% Median = 99% Third Quartile = 102% Number of Observations = 30 Water Year = 2015 First Quartile = 95% Median = 99% Third Quartile = 102% Number of Observations = 30 Water Year = 2015 First Quartile = 95% Median = 99% Third Quartile = 102% Number of Observations = 30 Water Year = 2015 First Quartile = 95% Median = 99% Third Quartile = 102% Number of Observations = 30 Water Year = 2015 First Quartile = 95% Median = 99% Third Quartile = 102% Number of Observations = 30 Water Year = 2015 First Quartile = 95% Median = 99% Third Quartile = 102% Number of Observations = 30 Y = 1
The SGPlot Procedure

Percent Recovery Statistics for Cadmium, unfltd, ICP-MS, recov

Analyte Parm-meth Code Water Year # of
Samples		 25th Pctl 50th Pctl
(Median)		 75th Pctl
Cadmium, unfltd, ICP-MS, recov 01027PLM78 2015 30 94.9% 99.3% 102.1%
    2016 55 98.7% 100.6% 103.1%
    2017 66 100.5% 102.8% 105.4%
    2019 55 98.9% 101.1% 102.7%
    2020 39 99.1% 101.3% 102.5%
    2021 42 98.9% 101.0% 102.6%
    2022 41 99.2% 101.4% 103.4%
    2023 48 98.6% 100.2% 103.4%
    2024 42 99.5% 101.7% 104.0%

Hover over boxplot or outliers for additional information
Chart generated 03/27/2025
Charts and data secured from this U.S. Geological Survey (USGS) web page (identified as IBSP) have not received official USGS approval and as such are provisional and subject to revision. The charts and data are released on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use.


- Chromium, fltd, ICP-OES -
Lab: NWQL, PCode: 01030, MCode: PLA11
Analysis Dates: 10/15/09 through 07/08/14
Open Data Set
Boxplot Description

Water Year = 2010 plotvalue = 79% pctrecov = 79% Water Year = 2010 plotvalue = 78% pctrecov = 78% Water Year = 2014 First Quartile = 74% Median = 87% Third Quartile = 111% Number of Observations = 15 Water Year = 2014 First Quartile = 74% Median = 87% Third Quartile = 111% Number of Observations = 15 Water Year = 2014 First Quartile = 74% Median = 87% Third Quartile = 111% Number of Observations = 15 Water Year = 2014 First Quartile = 74% Median = 87% Third Quartile = 111% Number of Observations = 15 Water Year = 2014 First Quartile = 74% Median = 87% Third Quartile = 111% Number of Observations = 15 Water Year = 2014 First Quartile = 74% Median = 87% Third Quartile = 111% Number of Observations = 15 Water Year = 2014 First Quartile = 74% Median = 87% Third Quartile = 111% Number of Observations = 15 Water Year = 2014 First Quartile = 74% Median = 87% Third Quartile = 111% Number of Observations = 15 Water Year = 2011 First Quartile = 102% Median = 111% Third Quartile = 123% Number of Observations = 40 Water Year = 2011 First Quartile = 102% Median = 111% Third Quartile = 123% Number of Observations = 40 Water Year = 2011 First Quartile = 102% Median = 111% Third Quartile = 123% Number of Observations = 40 Water Year = 2011 First Quartile = 102% Median = 111% Third Quartile = 123% Number of Observations = 40 Water Year = 2011 First Quartile = 102% Median = 111% Third Quartile = 123% Number of Observations = 40 Water Year = 2011 First Quartile = 102% Median = 111% Third Quartile = 123% Number of Observations = 40 Water Year = 2011 First Quartile = 102% Median = 111% Third Quartile = 123% Number of Observations = 40 Water Year = 2011 First Quartile = 102% Median = 111% Third Quartile = 123% Number of Observations = 40 Water Year = 2010 First Quartile = 95% Median = 99% Third Quartile = 105% Number of Observations = 42 Water Year = 2010 First Quartile = 95% Median = 99% Third Quartile = 105% Number of Observations = 42 Water Year = 2010 First Quartile = 95% Median = 99% Third Quartile = 105% Number of Observations = 42 Water Year = 2010 First Quartile = 95% Median = 99% Third Quartile = 105% Number of Observations = 42 Water Year = 2010 First Quartile = 95% Median = 99% Third Quartile = 105% Number of Observations = 42 Water Year = 2010 First Quartile = 95% Median = 99% Third Quartile = 105% Number of Observations = 42 Water Year = 2010 First Quartile = 95% Median = 99% Third Quartile = 105% Number of Observations = 42 Water Year = 2010 First Quartile = 95% Median = 99% Third Quartile = 105% Number of Observations = 42 Y = 1
The SGPlot Procedure

Percent Recovery Statistics for Chromium, fltd, ICP-OES

Analyte Parm-meth Code Water Year # of
Samples		 25th Pctl 50th Pctl
(Median)		 75th Pctl
Chromium, fltd, ICP-OES 01030PLA11 2010 42 95.4% 99.1% 104.7%
    2011 40 102.3% 111.4% 123.2%
    2014 15 74.1% 87.0% 111.3%

Hover over boxplot or outliers for additional information
Chart generated 03/27/2025
Charts and data secured from this U.S. Geological Survey (USGS) web page (identified as IBSP) have not received official USGS approval and as such are provisional and subject to revision. The charts and data are released on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use.


- Chromium, fltd, cICP-MS -
Lab: NWQL, PCode: 01030, MCode: PLM10
Analysis Dates: 10/09/09 through 09/28/24
Open Data Set
Boxplot Description

Water Year = 2024 plotvalue = 81% pctrecov = 81% Water Year = 2024 plotvalue = 73% pctrecov = 73% Water Year = 2024 plotvalue = 70% pctrecov = 63% Water Year = 2024 plotvalue = 70% pctrecov = 68% Water Year = 2023 plotvalue = 130% pctrecov = 143% Water Year = 2021 plotvalue = 130% pctrecov = 285% Water Year = 2021 plotvalue = 130% pctrecov = 307% Water Year = 2016 plotvalue = 130% pctrecov = 249% Water Year = 2016 plotvalue = 130% pctrecov = 233% Water Year = 2016 plotvalue = 130% pctrecov = 237% Water Year = 2016 plotvalue = 130% pctrecov = 260% Water Year = 2016 plotvalue = 130% pctrecov = 188% Water Year = 2016 plotvalue = 130% pctrecov = 180% Water Year = 2016 plotvalue = 130% pctrecov = 516% Water Year = 2016 plotvalue = 130% pctrecov = 233% Water Year = 2016 plotvalue = 130% pctrecov = 155% Water Year = 2016 plotvalue = 130% pctrecov = 145% Water Year = 2016 plotvalue = 130% pctrecov = 227% Water Year = 2016 plotvalue = 130% pctrecov = 196% Water Year = 2016 plotvalue = 130% pctrecov = 195% Water Year = 2016 plotvalue = 130% pctrecov = 146% Water Year = 2016 plotvalue = 130% pctrecov = 174% Water Year = 2016 plotvalue = 70% pctrecov = 21% Water Year = 2016 plotvalue = 70% pctrecov = 19% Water Year = 2015 plotvalue = 109% pctrecov = 109% Water Year = 2015 plotvalue = 130% pctrecov = 331% Water Year = 2015 plotvalue = 130% pctrecov = 335% Water Year = 2015 plotvalue = 92% pctrecov = 92% Water Year = 2015 plotvalue = 91% pctrecov = 91% Water Year = 2015 plotvalue = 90% pctrecov = 90% Water Year = 2014 plotvalue = 70% pctrecov = 33% Water Year = 2013 plotvalue = 120% pctrecov = 120% Water Year = 2013 plotvalue = 70% pctrecov = 10% Water Year = 2012 plotvalue = 114% pctrecov = 114% Water Year = 2012 plotvalue = 114% pctrecov = 114% Water Year = 2012 plotvalue = 118% pctrecov = 118% Water Year = 2012 plotvalue = 118% pctrecov = 118% Water Year = 2012 plotvalue = 119% pctrecov = 119% Water Year = 2012 plotvalue = 130% pctrecov = 132% Water Year = 2012 plotvalue = 88% pctrecov = 88% Water Year = 2012 plotvalue = 70% pctrecov = 1% Water Year = 2011 plotvalue = 110% pctrecov = 110% Water Year = 2011 plotvalue = 113% pctrecov = 113% Water Year = 2011 plotvalue = 70% pctrecov = 6% Water Year = 2010 plotvalue = 110% pctrecov = 110% Water Year = 2010 plotvalue = 111% pctrecov = 111% Water Year = 2010 plotvalue = 111% pctrecov = 111% Water Year = 2010 plotvalue = 112% pctrecov = 112% Water Year = 2010 plotvalue = 130% pctrecov = 135% Water Year = 2024 First Quartile = 101% Median = 109% Third Quartile = 114% Number of Observations = 62 Water Year = 2024 First Quartile = 101% Median = 109% Third Quartile = 114% Number of Observations = 62 Water Year = 2024 First Quartile = 101% Median = 109% Third Quartile = 114% Number of Observations = 62 Water Year = 2024 First Quartile = 101% Median = 109% Third Quartile = 114% Number of Observations = 62 Water Year = 2024 First Quartile = 101% Median = 109% Third Quartile = 114% Number of Observations = 62 Water Year = 2024 First Quartile = 101% Median = 109% Third Quartile = 114% Number of Observations = 62 Water Year = 2024 First Quartile = 101% Median = 109% Third Quartile = 114% Number of Observations = 62 Water Year = 2024 First Quartile = 101% Median = 109% Third Quartile = 114% Number of Observations = 62 Water Year = 2023 First Quartile = 91% Median = 98% Third Quartile = 106% Number of Observations = 75 Water Year = 2023 First Quartile = 91% Median = 98% Third Quartile = 106% Number of Observations = 75 Water Year = 2023 First Quartile = 91% Median = 98% Third Quartile = 106% Number of Observations = 75 Water Year = 2023 First Quartile = 91% Median = 98% Third Quartile = 106% Number of Observations = 75 Water Year = 2023 First Quartile = 91% Median = 98% Third Quartile = 106% Number of Observations = 75 Water Year = 2023 First Quartile = 91% Median = 98% Third Quartile = 106% Number of Observations = 75 Water Year = 2023 First Quartile = 91% Median = 98% Third Quartile = 106% Number of Observations = 75 Water Year = 2023 First Quartile = 91% Median = 98% Third Quartile = 106% Number of Observations = 75 Water Year = 2022 First Quartile = 90% Median = 98% Third Quartile = 111% Number of Observations = 75 Water Year = 2022 First Quartile = 90% Median = 98% Third Quartile = 111% Number of Observations = 75 Water Year = 2022 First Quartile = 90% Median = 98% Third Quartile = 111% Number of Observations = 75 Water Year = 2022 First Quartile = 90% Median = 98% Third Quartile = 111% Number of Observations = 75 Water Year = 2022 First Quartile = 90% Median = 98% Third Quartile = 111% Number of Observations = 75 Water Year = 2022 First Quartile = 90% Median = 98% Third Quartile = 111% Number of Observations = 75 Water Year = 2022 First Quartile = 90% Median = 98% Third Quartile = 111% Number of Observations = 75 Water Year = 2022 First Quartile = 90% Median = 98% Third Quartile = 111% Number of Observations = 75 Water Year = 2021 First Quartile = 95% Median = 100% Third Quartile = 105% Number of Observations = 78 Water Year = 2021 First Quartile = 95% Median = 100% Third Quartile = 105% Number of Observations = 78 Water Year = 2021 First Quartile = 95% Median = 100% Third Quartile = 105% Number of Observations = 78 Water Year = 2021 First Quartile = 95% Median = 100% Third Quartile = 105% Number of Observations = 78 Water Year = 2021 First Quartile = 95% Median = 100% Third Quartile = 105% Number of Observations = 78 Water Year = 2021 First Quartile = 95% Median = 100% Third Quartile = 105% Number of Observations = 78 Water Year = 2021 First Quartile = 95% Median = 100% Third Quartile = 105% Number of Observations = 78 Water Year = 2021 First Quartile = 95% Median = 100% Third Quartile = 105% Number of Observations = 78 Water Year = 2020 First Quartile = 102% Median = 109% Third Quartile = 121% Number of Observations = 67 Water Year = 2020 First Quartile = 102% Median = 109% Third Quartile = 121% Number of Observations = 67 Water Year = 2020 First Quartile = 102% Median = 109% Third Quartile = 121% Number of Observations = 67 Water Year = 2020 First Quartile = 102% Median = 109% Third Quartile = 121% Number of Observations = 67 Water Year = 2020 First Quartile = 102% Median = 109% Third Quartile = 121% Number of Observations = 67 Water Year = 2020 First Quartile = 102% Median = 109% Third Quartile = 121% Number of Observations = 67 Water Year = 2020 First Quartile = 102% Median = 109% Third Quartile = 121% Number of Observations = 67 Water Year = 2020 First Quartile = 102% Median = 109% Third Quartile = 121% Number of Observations = 67 Water Year = 2019 First Quartile = 97% Median = 110% Third Quartile = 127% Number of Observations = 62 Water Year = 2019 First Quartile = 97% Median = 110% Third Quartile = 127% Number of Observations = 62 Water Year = 2019 First Quartile = 97% Median = 110% Third Quartile = 127% Number of Observations = 62 Water Year = 2019 First Quartile = 97% Median = 110% Third Quartile = 127% Number of Observations = 62 Water Year = 2019 First Quartile = 97% Median = 110% Third Quartile = 127% Number of Observations = 62 Water Year = 2019 First Quartile = 97% Median = 110% Third Quartile = 127% Number of Observations = 62 Water Year = 2019 First Quartile = 97% Median = 110% Third Quartile = 127% Number of Observations = 62 Water Year = 2019 First Quartile = 97% Median = 110% Third Quartile = 127% Number of Observations = 62 Water Year = 2017 First Quartile = 108% Median = 113% Third Quartile = 129% Number of Observations = 86 Water Year = 2017 First Quartile = 108% Median = 113% Third Quartile = 129% Number of Observations = 86 Water Year = 2017 First Quartile = 108% Median = 113% Third Quartile = 129% Number of Observations = 86 Water Year = 2017 First Quartile = 108% Median = 113% Third Quartile = 129% Number of Observations = 86 Water Year = 2017 First Quartile = 108% Median = 113% Third Quartile = 129% Number of Observations = 86 Water Year = 2017 First Quartile = 108% Median = 113% Third Quartile = 129% Number of Observations = 86 Water Year = 2017 First Quartile = 108% Median = 113% Third Quartile = 129% Number of Observations = 86 Water Year = 2017 First Quartile = 108% Median = 113% Third Quartile = 129% Number of Observations = 86 Water Year = 2016 First Quartile = 99% Median = 102% Third Quartile = 110% Number of Observations = 76 Water Year = 2016 First Quartile = 99% Median = 102% Third Quartile = 110% Number of Observations = 76 Water Year = 2016 First Quartile = 99% Median = 102% Third Quartile = 110% Number of Observations = 76 Water Year = 2016 First Quartile = 99% Median = 102% Third Quartile = 110% Number of Observations = 76 Water Year = 2016 First Quartile = 99% Median = 102% Third Quartile = 110% Number of Observations = 76 Water Year = 2016 First Quartile = 99% Median = 102% Third Quartile = 110% Number of Observations = 76 Water Year = 2016 First Quartile = 99% Median = 102% Third Quartile = 110% Number of Observations = 76 Water Year = 2016 First Quartile = 99% Median = 102% Third Quartile = 110% Number of Observations = 76 Water Year = 2015 First Quartile = 98% Median = 100% Third Quartile = 102% Number of Observations = 77 Water Year = 2015 First Quartile = 98% Median = 100% Third Quartile = 102% Number of Observations = 77 Water Year = 2015 First Quartile = 98% Median = 100% Third Quartile = 102% Number of Observations = 77 Water Year = 2015 First Quartile = 98% Median = 100% Third Quartile = 102% Number of Observations = 77 Water Year = 2015 First Quartile = 98% Median = 100% Third Quartile = 102% Number of Observations = 77 Water Year = 2015 First Quartile = 98% Median = 100% Third Quartile = 102% Number of Observations = 77 Water Year = 2015 First Quartile = 98% Median = 100% Third Quartile = 102% Number of Observations = 77 Water Year = 2015 First Quartile = 98% Median = 100% Third Quartile = 102% Number of Observations = 77 Water Year = 2014 First Quartile = 103% Median = 108% Third Quartile = 116% Number of Observations = 60 Water Year = 2014 First Quartile = 103% Median = 108% Third Quartile = 116% Number of Observations = 60 Water Year = 2014 First Quartile = 103% Median = 108% Third Quartile = 116% Number of Observations = 60 Water Year = 2014 First Quartile = 103% Median = 108% Third Quartile = 116% Number of Observations = 60 Water Year = 2014 First Quartile = 103% Median = 108% Third Quartile = 116% Number of Observations = 60 Water Year = 2014 First Quartile = 103% Median = 108% Third Quartile = 116% Number of Observations = 60 Water Year = 2014 First Quartile = 103% Median = 108% Third Quartile = 116% Number of Observations = 60 Water Year = 2014 First Quartile = 103% Median = 108% Third Quartile = 116% Number of Observations = 60 Water Year = 2013 First Quartile = 100% Median = 102% Third Quartile = 107% Number of Observations = 108 Water Year = 2013 First Quartile = 100% Median = 102% Third Quartile = 107% Number of Observations = 108 Water Year = 2013 First Quartile = 100% Median = 102% Third Quartile = 107% Number of Observations = 108 Water Year = 2013 First Quartile = 100% Median = 102% Third Quartile = 107% Number of Observations = 108 Water Year = 2013 First Quartile = 100% Median = 102% Third Quartile = 107% Number of Observations = 108 Water Year = 2013 First Quartile = 100% Median = 102% Third Quartile = 107% Number of Observations = 108 Water Year = 2013 First Quartile = 100% Median = 102% Third Quartile = 107% Number of Observations = 108 Water Year = 2013 First Quartile = 100% Median = 102% Third Quartile = 107% Number of Observations = 108 Water Year = 2012 First Quartile = 98% Median = 101% Third Quartile = 104% Number of Observations = 132 Water Year = 2012 First Quartile = 98% Median = 101% Third Quartile = 104% Number of Observations = 132 Water Year = 2012 First Quartile = 98% Median = 101% Third Quartile = 104% Number of Observations = 132 Water Year = 2012 First Quartile = 98% Median = 101% Third Quartile = 104% Number of Observations = 132 Water Year = 2012 First Quartile = 98% Median = 101% Third Quartile = 104% Number of Observations = 132 Water Year = 2012 First Quartile = 98% Median = 101% Third Quartile = 104% Number of Observations = 132 Water Year = 2012 First Quartile = 98% Median = 101% Third Quartile = 104% Number of Observations = 132 Water Year = 2012 First Quartile = 98% Median = 101% Third Quartile = 104% Number of Observations = 132 Water Year = 2011 First Quartile = 94% Median = 97% Third Quartile = 100% Number of Observations = 131 Water Year = 2011 First Quartile = 94% Median = 97% Third Quartile = 100% Number of Observations = 131 Water Year = 2011 First Quartile = 94% Median = 97% Third Quartile = 100% Number of Observations = 131 Water Year = 2011 First Quartile = 94% Median = 97% Third Quartile = 100% Number of Observations = 131 Water Year = 2011 First Quartile = 94% Median = 97% Third Quartile = 100% Number of Observations = 131 Water Year = 2011 First Quartile = 94% Median = 97% Third Quartile = 100% Number of Observations = 131 Water Year = 2011 First Quartile = 94% Median = 97% Third Quartile = 100% Number of Observations = 131 Water Year = 2011 First Quartile = 94% Median = 97% Third Quartile = 100% Number of Observations = 131 Water Year = 2010 First Quartile = 96% Median = 98% Third Quartile = 101% Number of Observations = 132 Water Year = 2010 First Quartile = 96% Median = 98% Third Quartile = 101% Number of Observations = 132 Water Year = 2010 First Quartile = 96% Median = 98% Third Quartile = 101% Number of Observations = 132 Water Year = 2010 First Quartile = 96% Median = 98% Third Quartile = 101% Number of Observations = 132 Water Year = 2010 First Quartile = 96% Median = 98% Third Quartile = 101% Number of Observations = 132 Water Year = 2010 First Quartile = 96% Median = 98% Third Quartile = 101% Number of Observations = 132 Water Year = 2010 First Quartile = 96% Median = 98% Third Quartile = 101% Number of Observations = 132 Water Year = 2010 First Quartile = 96% Median = 98% Third Quartile = 101% Number of Observations = 132 Y = 1
The SGPlot Procedure

Percent Recovery Statistics for Chromium, fltd, cICP-MS

Analyte Parm-meth Code Water Year # of
Samples		 25th Pctl 50th Pctl
(Median)		 75th Pctl
Chromium, fltd, cICP-MS 01030PLM10 2010 132 95.8% 98.0% 101.5%
    2011 131 93.9% 97.0% 100.2%
    2012 132 98.2% 101.2% 104.2%
    2013 108 99.6% 102.1% 107.0%
    2014 60 103.3% 107.9% 115.5%
    2015 77 97.8% 99.7% 101.8%
    2016 76 98.7% 102.0% 110.4%
    2017 86 108.0% 113.5% 129.4%
    2019 62 97.0% 109.6% 126.6%
    2020 67 101.7% 108.8% 120.8%
    2021 78 94.7% 100.1% 105.0%
    2022 75 90.0% 98.3% 110.8%
    2023 75 90.9% 98.2% 105.6%
    2024 62 101.0% 108.6% 113.6%

Hover over boxplot or outliers for additional information
Chart generated 03/27/2025
Charts and data secured from this U.S. Geological Survey (USGS) web page (identified as IBSP) have not received official USGS approval and as such are provisional and subject to revision. The charts and data are released on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use.


- Chromium, unfltd, ICP-OES, recov -
Lab: NWQL, PCode: 01034, MCode: PLA15
Analysis Dates: 10/07/09 through 07/29/14
Open Data Set
Boxplot Description

Water Year = 2014 First Quartile = 74% Median = 87% Third Quartile = 110% Number of Observations = 14 Water Year = 2014 First Quartile = 74% Median = 87% Third Quartile = 110% Number of Observations = 14 Water Year = 2014 First Quartile = 74% Median = 87% Third Quartile = 110% Number of Observations = 14 Water Year = 2014 First Quartile = 74% Median = 87% Third Quartile = 110% Number of Observations = 14 Water Year = 2014 First Quartile = 74% Median = 87% Third Quartile = 110% Number of Observations = 14 Water Year = 2014 First Quartile = 74% Median = 87% Third Quartile = 110% Number of Observations = 14 Water Year = 2014 First Quartile = 74% Median = 87% Third Quartile = 110% Number of Observations = 14 Water Year = 2014 First Quartile = 74% Median = 87% Third Quartile = 110% Number of Observations = 14 Water Year = 2011 First Quartile = 96% Median = 109% Third Quartile = 127% Number of Observations = 40 Water Year = 2011 First Quartile = 96% Median = 109% Third Quartile = 127% Number of Observations = 40 Water Year = 2011 First Quartile = 96% Median = 109% Third Quartile = 127% Number of Observations = 40 Water Year = 2011 First Quartile = 96% Median = 109% Third Quartile = 127% Number of Observations = 40 Water Year = 2011 First Quartile = 96% Median = 109% Third Quartile = 127% Number of Observations = 40 Water Year = 2011 First Quartile = 96% Median = 109% Third Quartile = 127% Number of Observations = 40 Water Year = 2011 First Quartile = 96% Median = 109% Third Quartile = 127% Number of Observations = 40 Water Year = 2011 First Quartile = 96% Median = 109% Third Quartile = 127% Number of Observations = 40 Water Year = 2010 First Quartile = 86% Median = 91% Third Quartile = 97% Number of Observations = 42 Water Year = 2010 First Quartile = 86% Median = 91% Third Quartile = 97% Number of Observations = 42 Water Year = 2010 First Quartile = 86% Median = 91% Third Quartile = 97% Number of Observations = 42 Water Year = 2010 First Quartile = 86% Median = 91% Third Quartile = 97% Number of Observations = 42 Water Year = 2010 First Quartile = 86% Median = 91% Third Quartile = 97% Number of Observations = 42 Water Year = 2010 First Quartile = 86% Median = 91% Third Quartile = 97% Number of Observations = 42 Water Year = 2010 First Quartile = 86% Median = 91% Third Quartile = 97% Number of Observations = 42 Water Year = 2010 First Quartile = 86% Median = 91% Third Quartile = 97% Number of Observations = 42 Water Year = 2009 First Quartile = 84% Median = 93% Third Quartile = 96% Number of Observations = 3 Water Year = 2009 First Quartile = 84% Median = 93% Third Quartile = 96% Number of Observations = 3 Water Year = 2009 First Quartile = 84% Median = 93% Third Quartile = 96% Number of Observations = 3 Water Year = 2009 First Quartile = 84% Median = 93% Third Quartile = 96% Number of Observations = 3 Water Year = 2009 First Quartile = 84% Median = 93% Third Quartile = 96% Number of Observations = 3 Water Year = 2009 First Quartile = 84% Median = 93% Third Quartile = 96% Number of Observations = 3 Water Year = 2009 First Quartile = 84% Median = 93% Third Quartile = 96% Number of Observations = 3 Water Year = 2009 First Quartile = 84% Median = 93% Third Quartile = 96% Number of Observations = 3 Y = 1
The SGPlot Procedure

Percent Recovery Statistics for Chromium, unfltd, ICP-OES, recov

Analyte Parm-meth Code Water Year # of
Samples		 25th Pctl 50th Pctl
(Median)		 75th Pctl
Chromium, unfltd, ICP-OES, recov 01034PLA15 2009 3 83.8% 93.3% 96.4%
    2010 42 86.5% 91.1% 96.7%
    2011 40 96.1% 109.5% 127.8%
    2014 14 74.1% 87.3% 110.0%

Hover over boxplot or outliers for additional information
Chart generated 03/27/2025
Charts and data secured from this U.S. Geological Survey (USGS) web page (identified as IBSP) have not received official USGS approval and as such are provisional and subject to revision. The charts and data are released on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use.


- Chromium, unfltd, ICP-OES, recov -
Lab: NWQL, PCode: 01034, MCode: PLO07
Analysis Dates: 11/08/19 through 09/21/24
Open Data Set
Boxplot Description

Water Year = 2023 plotvalue = 123% pctrecov = 123% Water Year = 2023 plotvalue = 70% pctrecov = 70% Water Year = 2020 plotvalue = 130% pctrecov = 262% Water Year = 2020 plotvalue = 70% pctrecov = 60% Water Year = 2024 First Quartile = 97% Median = 101% Third Quartile = 115% Number of Observations = 13 Water Year = 2024 First Quartile = 97% Median = 101% Third Quartile = 115% Number of Observations = 13 Water Year = 2024 First Quartile = 97% Median = 101% Third Quartile = 115% Number of Observations = 13 Water Year = 2024 First Quartile = 97% Median = 101% Third Quartile = 115% Number of Observations = 13 Water Year = 2024 First Quartile = 97% Median = 101% Third Quartile = 115% Number of Observations = 13 Water Year = 2024 First Quartile = 97% Median = 101% Third Quartile = 115% Number of Observations = 13 Water Year = 2024 First Quartile = 97% Median = 101% Third Quartile = 115% Number of Observations = 13 Water Year = 2024 First Quartile = 97% Median = 101% Third Quartile = 115% Number of Observations = 13 Water Year = 2023 First Quartile = 90% Median = 97% Third Quartile = 103% Number of Observations = 16 Water Year = 2023 First Quartile = 90% Median = 97% Third Quartile = 103% Number of Observations = 16 Water Year = 2023 First Quartile = 90% Median = 97% Third Quartile = 103% Number of Observations = 16 Water Year = 2023 First Quartile = 90% Median = 97% Third Quartile = 103% Number of Observations = 16 Water Year = 2023 First Quartile = 90% Median = 97% Third Quartile = 103% Number of Observations = 16 Water Year = 2023 First Quartile = 90% Median = 97% Third Quartile = 103% Number of Observations = 16 Water Year = 2023 First Quartile = 90% Median = 97% Third Quartile = 103% Number of Observations = 16 Water Year = 2023 First Quartile = 90% Median = 97% Third Quartile = 103% Number of Observations = 16 Water Year = 2022 First Quartile = 84% Median = 101% Third Quartile = 107% Number of Observations = 18 Water Year = 2022 First Quartile = 84% Median = 101% Third Quartile = 107% Number of Observations = 18 Water Year = 2022 First Quartile = 84% Median = 101% Third Quartile = 107% Number of Observations = 18 Water Year = 2022 First Quartile = 84% Median = 101% Third Quartile = 107% Number of Observations = 18 Water Year = 2022 First Quartile = 84% Median = 101% Third Quartile = 107% Number of Observations = 18 Water Year = 2022 First Quartile = 84% Median = 101% Third Quartile = 107% Number of Observations = 18 Water Year = 2022 First Quartile = 84% Median = 101% Third Quartile = 107% Number of Observations = 18 Water Year = 2022 First Quartile = 84% Median = 101% Third Quartile = 107% Number of Observations = 18 Water Year = 2021 First Quartile = 88% Median = 92% Third Quartile = 102% Number of Observations = 20 Water Year = 2021 First Quartile = 88% Median = 92% Third Quartile = 102% Number of Observations = 20 Water Year = 2021 First Quartile = 88% Median = 92% Third Quartile = 102% Number of Observations = 20 Water Year = 2021 First Quartile = 88% Median = 92% Third Quartile = 102% Number of Observations = 20 Water Year = 2021 First Quartile = 88% Median = 92% Third Quartile = 102% Number of Observations = 20 Water Year = 2021 First Quartile = 88% Median = 92% Third Quartile = 102% Number of Observations = 20 Water Year = 2021 First Quartile = 88% Median = 92% Third Quartile = 102% Number of Observations = 20 Water Year = 2021 First Quartile = 88% Median = 92% Third Quartile = 102% Number of Observations = 20 Water Year = 2020 First Quartile = 85% Median = 90% Third Quartile = 94% Number of Observations = 17 Water Year = 2020 First Quartile = 85% Median = 90% Third Quartile = 94% Number of Observations = 17 Water Year = 2020 First Quartile = 85% Median = 90% Third Quartile = 94% Number of Observations = 17 Water Year = 2020 First Quartile = 85% Median = 90% Third Quartile = 94% Number of Observations = 17 Water Year = 2020 First Quartile = 85% Median = 90% Third Quartile = 94% Number of Observations = 17 Water Year = 2020 First Quartile = 85% Median = 90% Third Quartile = 94% Number of Observations = 17 Water Year = 2020 First Quartile = 85% Median = 90% Third Quartile = 94% Number of Observations = 17 Water Year = 2020 First Quartile = 85% Median = 90% Third Quartile = 94% Number of Observations = 17 Y = 1
The SGPlot Procedure

Percent Recovery Statistics for Chromium, unfltd, ICP-OES, recov

Analyte Parm-meth Code Water Year # of
Samples		 25th Pctl 50th Pctl
(Median)		 75th Pctl
Chromium, unfltd, ICP-OES, recov 01034PLO07 2020 17 85.5% 89.7% 94.0%
    2021 20 88.3% 92.4% 102.1%
    2022 18 84.2% 100.9% 106.7%
    2023 16 89.6% 96.7% 102.6%
    2024 13 97.3% 100.8% 114.7%

Hover over boxplot or outliers for additional information
Chart generated 03/27/2025
Charts and data secured from this U.S. Geological Survey (USGS) web page (identified as IBSP) have not received official USGS approval and as such are provisional and subject to revision. The charts and data are released on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use.


- Chromium, unfltd, cICP-MS, recov -
Lab: NWQL, PCode: 01034, MCode: PLM11
Analysis Dates: 10/05/09 through 04/22/15
Open Data Set
Boxplot Description

Water Year = 2015 plotvalue = 128% pctrecov = 128% Water Year = 2014 plotvalue = 96% pctrecov = 96% Water Year = 2013 plotvalue = 116% pctrecov = 116% Water Year = 2013 plotvalue = 117% pctrecov = 117% Water Year = 2013 plotvalue = 117% pctrecov = 117% Water Year = 2013 plotvalue = 118% pctrecov = 118% Water Year = 2013 plotvalue = 130% pctrecov = 275% Water Year = 2013 plotvalue = 87% pctrecov = 87% Water Year = 2012 plotvalue = 120% pctrecov = 120% Water Year = 2012 plotvalue = 122% pctrecov = 122% Water Year = 2012 plotvalue = 130% pctrecov = 225% Water Year = 2012 plotvalue = 130% pctrecov = 769% Water Year = 2012 plotvalue = 130% pctrecov = 308% Water Year = 2011 plotvalue = 130% pctrecov = 136% Water Year = 2011 plotvalue = 130% pctrecov = 166% Water Year = 2011 plotvalue = 130% pctrecov = 155% Water Year = 2011 plotvalue = 130% pctrecov = 130% Water Year = 2011 plotvalue = 79% pctrecov = 79% Water Year = 2010 plotvalue = 130% pctrecov = 436% Water Year = 2010 plotvalue = 88% pctrecov = 88% Water Year = 2009 plotvalue = 105% pctrecov = 105% Water Year = 2015 First Quartile = 99% Median = 102% Third Quartile = 109% Number of Observations = 21 Water Year = 2015 First Quartile = 99% Median = 102% Third Quartile = 109% Number of Observations = 21 Water Year = 2015 First Quartile = 99% Median = 102% Third Quartile = 109% Number of Observations = 21 Water Year = 2015 First Quartile = 99% Median = 102% Third Quartile = 109% Number of Observations = 21 Water Year = 2015 First Quartile = 99% Median = 102% Third Quartile = 109% Number of Observations = 21 Water Year = 2015 First Quartile = 99% Median = 102% Third Quartile = 109% Number of Observations = 21 Water Year = 2015 First Quartile = 99% Median = 102% Third Quartile = 109% Number of Observations = 21 Water Year = 2015 First Quartile = 99% Median = 102% Third Quartile = 109% Number of Observations = 21 Water Year = 2014 First Quartile = 112% Median = 115% Third Quartile = 122% Number of Observations = 33 Water Year = 2014 First Quartile = 112% Median = 115% Third Quartile = 122% Number of Observations = 33 Water Year = 2014 First Quartile = 112% Median = 115% Third Quartile = 122% Number of Observations = 33 Water Year = 2014 First Quartile = 112% Median = 115% Third Quartile = 122% Number of Observations = 33 Water Year = 2014 First Quartile = 112% Median = 115% Third Quartile = 122% Number of Observations = 33 Water Year = 2014 First Quartile = 112% Median = 115% Third Quartile = 122% Number of Observations = 33 Water Year = 2014 First Quartile = 112% Median = 115% Third Quartile = 122% Number of Observations = 33 Water Year = 2014 First Quartile = 112% Median = 115% Third Quartile = 122% Number of Observations = 33 Water Year = 2013 First Quartile = 101% Median = 103% Third Quartile = 107% Number of Observations = 48 Water Year = 2013 First Quartile = 101% Median = 103% Third Quartile = 107% Number of Observations = 48 Water Year = 2013 First Quartile = 101% Median = 103% Third Quartile = 107% Number of Observations = 48 Water Year = 2013 First Quartile = 101% Median = 103% Third Quartile = 107% Number of Observations = 48 Water Year = 2013 First Quartile = 101% Median = 103% Third Quartile = 107% Number of Observations = 48 Water Year = 2013 First Quartile = 101% Median = 103% Third Quartile = 107% Number of Observations = 48 Water Year = 2013 First Quartile = 101% Median = 103% Third Quartile = 107% Number of Observations = 48 Water Year = 2013 First Quartile = 101% Median = 103% Third Quartile = 107% Number of Observations = 48 Water Year = 2012 First Quartile = 102% Median = 104% Third Quartile = 109% Number of Observations = 82 Water Year = 2012 First Quartile = 102% Median = 104% Third Quartile = 109% Number of Observations = 82 Water Year = 2012 First Quartile = 102% Median = 104% Third Quartile = 109% Number of Observations = 82 Water Year = 2012 First Quartile = 102% Median = 104% Third Quartile = 109% Number of Observations = 82 Water Year = 2012 First Quartile = 102% Median = 104% Third Quartile = 109% Number of Observations = 82 Water Year = 2012 First Quartile = 102% Median = 104% Third Quartile = 109% Number of Observations = 82 Water Year = 2012 First Quartile = 102% Median = 104% Third Quartile = 109% Number of Observations = 82 Water Year = 2012 First Quartile = 102% Median = 104% Third Quartile = 109% Number of Observations = 82 Water Year = 2011 First Quartile = 100% Median = 105% Third Quartile = 109% Number of Observations = 83 Water Year = 2011 First Quartile = 100% Median = 105% Third Quartile = 109% Number of Observations = 83 Water Year = 2011 First Quartile = 100% Median = 105% Third Quartile = 109% Number of Observations = 83 Water Year = 2011 First Quartile = 100% Median = 105% Third Quartile = 109% Number of Observations = 83 Water Year = 2011 First Quartile = 100% Median = 105% Third Quartile = 109% Number of Observations = 83 Water Year = 2011 First Quartile = 100% Median = 105% Third Quartile = 109% Number of Observations = 83 Water Year = 2011 First Quartile = 100% Median = 105% Third Quartile = 109% Number of Observations = 83 Water Year = 2011 First Quartile = 100% Median = 105% Third Quartile = 109% Number of Observations = 83 Water Year = 2010 First Quartile = 100% Median = 103% Third Quartile = 105% Number of Observations = 84 Water Year = 2010 First Quartile = 100% Median = 103% Third Quartile = 105% Number of Observations = 84 Water Year = 2010 First Quartile = 100% Median = 103% Third Quartile = 105% Number of Observations = 84 Water Year = 2010 First Quartile = 100% Median = 103% Third Quartile = 105% Number of Observations = 84 Water Year = 2010 First Quartile = 100% Median = 103% Third Quartile = 105% Number of Observations = 84 Water Year = 2010 First Quartile = 100% Median = 103% Third Quartile = 105% Number of Observations = 84 Water Year = 2010 First Quartile = 100% Median = 103% Third Quartile = 105% Number of Observations = 84 Water Year = 2010 First Quartile = 100% Median = 103% Third Quartile = 105% Number of Observations = 84 Water Year = 2009 First Quartile = 97% Median = 99% Third Quartile = 100% Number of Observations = 9 Water Year = 2009 First Quartile = 97% Median = 99% Third Quartile = 100% Number of Observations = 9 Water Year = 2009 First Quartile = 97% Median = 99% Third Quartile = 100% Number of Observations = 9 Water Year = 2009 First Quartile = 97% Median = 99% Third Quartile = 100% Number of Observations = 9 Water Year = 2009 First Quartile = 97% Median = 99% Third Quartile = 100% Number of Observations = 9 Water Year = 2009 First Quartile = 97% Median = 99% Third Quartile = 100% Number of Observations = 9 Water Year = 2009 First Quartile = 97% Median = 99% Third Quartile = 100% Number of Observations = 9 Water Year = 2009 First Quartile = 97% Median = 99% Third Quartile = 100% Number of Observations = 9 Y = 1
The SGPlot Procedure

Percent Recovery Statistics for Chromium, unfltd, cICP-MS, recov

Analyte Parm-meth Code Water Year # of
Samples		 25th Pctl 50th Pctl
(Median)		 75th Pctl
Chromium, unfltd, cICP-MS, recov 01034PLM11 2009 9 96.8% 98.8% 99.7%
    2010 84 100.3% 102.7% 105.0%
    2011 83 100.1% 104.5% 109.0%
    2012 82 101.6% 104.2% 108.5%
    2013 48 100.9% 103.0% 106.8%
    2014 33 111.8% 115.4% 121.6%
    2015 21 99.2% 101.6% 108.9%

Hover over boxplot or outliers for additional information
Chart generated 03/27/2025
Charts and data secured from this U.S. Geological Survey (USGS) web page (identified as IBSP) have not received official USGS approval and as such are provisional and subject to revision. The charts and data are released on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use.


- Chromium, unfltd, cICP-MS, recov -
Lab: NWQL, PCode: 01034, MCode: PLM77
Analysis Dates: 05/12/15 through 09/25/24
Open Data Set
Boxplot Description

Water Year = 2024 plotvalue = 130% pctrecov = 138% Water Year = 2023 plotvalue = 119% pctrecov = 119% Water Year = 2022 plotvalue = 129% pctrecov = 129% Water Year = 2021 plotvalue = 115% pctrecov = 115% Water Year = 2021 plotvalue = 130% pctrecov = 329% Water Year = 2021 plotvalue = 130% pctrecov = 189% Water Year = 2021 plotvalue = 83% pctrecov = 83% Water Year = 2021 plotvalue = 82% pctrecov = 82% Water Year = 2021 plotvalue = 81% pctrecov = 81% Water Year = 2021 plotvalue = 81% pctrecov = 81% Water Year = 2021 plotvalue = 77% pctrecov = 77% Water Year = 2020 plotvalue = 116% pctrecov = 116% Water Year = 2016 plotvalue = 130% pctrecov = 258% Water Year = 2016 plotvalue = 130% pctrecov = 155% Water Year = 2016 plotvalue = 130% pctrecov = 163% Water Year = 2016 plotvalue = 130% pctrecov = 150% Water Year = 2016 plotvalue = 130% pctrecov = 158% Water Year = 2016 plotvalue = 130% pctrecov = 185% Water Year = 2015 plotvalue = 116% pctrecov = 116% Water Year = 2015 plotvalue = 117% pctrecov = 117% Water Year = 2015 plotvalue = 92% pctrecov = 92% Water Year = 2015 plotvalue = 91% pctrecov = 91% Water Year = 2015 plotvalue = 87% pctrecov = 87% Water Year = 2024 First Quartile = 92% Median = 100% Third Quartile = 106% Number of Observations = 34 Water Year = 2024 First Quartile = 92% Median = 100% Third Quartile = 106% Number of Observations = 34 Water Year = 2024 First Quartile = 92% Median = 100% Third Quartile = 106% Number of Observations = 34 Water Year = 2024 First Quartile = 92% Median = 100% Third Quartile = 106% Number of Observations = 34 Water Year = 2024 First Quartile = 92% Median = 100% Third Quartile = 106% Number of Observations = 34 Water Year = 2024 First Quartile = 92% Median = 100% Third Quartile = 106% Number of Observations = 34 Water Year = 2024 First Quartile = 92% Median = 100% Third Quartile = 106% Number of Observations = 34 Water Year = 2024 First Quartile = 92% Median = 100% Third Quartile = 106% Number of Observations = 34 Water Year = 2023 First Quartile = 92% Median = 97% Third Quartile = 102% Number of Observations = 40 Water Year = 2023 First Quartile = 92% Median = 97% Third Quartile = 102% Number of Observations = 40 Water Year = 2023 First Quartile = 92% Median = 97% Third Quartile = 102% Number of Observations = 40 Water Year = 2023 First Quartile = 92% Median = 97% Third Quartile = 102% Number of Observations = 40 Water Year = 2023 First Quartile = 92% Median = 97% Third Quartile = 102% Number of Observations = 40 Water Year = 2023 First Quartile = 92% Median = 97% Third Quartile = 102% Number of Observations = 40 Water Year = 2023 First Quartile = 92% Median = 97% Third Quartile = 102% Number of Observations = 40 Water Year = 2023 First Quartile = 92% Median = 97% Third Quartile = 102% Number of Observations = 40 Water Year = 2022 First Quartile = 95% Median = 100% Third Quartile = 105% Number of Observations = 39 Water Year = 2022 First Quartile = 95% Median = 100% Third Quartile = 105% Number of Observations = 39 Water Year = 2022 First Quartile = 95% Median = 100% Third Quartile = 105% Number of Observations = 39 Water Year = 2022 First Quartile = 95% Median = 100% Third Quartile = 105% Number of Observations = 39 Water Year = 2022 First Quartile = 95% Median = 100% Third Quartile = 105% Number of Observations = 39 Water Year = 2022 First Quartile = 95% Median = 100% Third Quartile = 105% Number of Observations = 39 Water Year = 2022 First Quartile = 95% Median = 100% Third Quartile = 105% Number of Observations = 39 Water Year = 2022 First Quartile = 95% Median = 100% Third Quartile = 105% Number of Observations = 39 Water Year = 2021 First Quartile = 94% Median = 98% Third Quartile = 100% Number of Observations = 42 Water Year = 2021 First Quartile = 94% Median = 98% Third Quartile = 100% Number of Observations = 42 Water Year = 2021 First Quartile = 94% Median = 98% Third Quartile = 100% Number of Observations = 42 Water Year = 2021 First Quartile = 94% Median = 98% Third Quartile = 100% Number of Observations = 42 Water Year = 2021 First Quartile = 94% Median = 98% Third Quartile = 100% Number of Observations = 42 Water Year = 2021 First Quartile = 94% Median = 98% Third Quartile = 100% Number of Observations = 42 Water Year = 2021 First Quartile = 94% Median = 98% Third Quartile = 100% Number of Observations = 42 Water Year = 2021 First Quartile = 94% Median = 98% Third Quartile = 100% Number of Observations = 42 Water Year = 2020 First Quartile = 94% Median = 96% Third Quartile = 101% Number of Observations = 30 Water Year = 2020 First Quartile = 94% Median = 96% Third Quartile = 101% Number of Observations = 30 Water Year = 2020 First Quartile = 94% Median = 96% Third Quartile = 101% Number of Observations = 30 Water Year = 2020 First Quartile = 94% Median = 96% Third Quartile = 101% Number of Observations = 30 Water Year = 2020 First Quartile = 94% Median = 96% Third Quartile = 101% Number of Observations = 30 Water Year = 2020 First Quartile = 94% Median = 96% Third Quartile = 101% Number of Observations = 30 Water Year = 2020 First Quartile = 94% Median = 96% Third Quartile = 101% Number of Observations = 30 Water Year = 2020 First Quartile = 94% Median = 96% Third Quartile = 101% Number of Observations = 30 Water Year = 2019 First Quartile = 105% Median = 130% Third Quartile = 130% Number of Observations = 31 Water Year = 2019 First Quartile = 105% Median = 130% Third Quartile = 130% Number of Observations = 31 Water Year = 2019 First Quartile = 105% Median = 130% Third Quartile = 130% Number of Observations = 31 Water Year = 2019 First Quartile = 105% Median = 130% Third Quartile = 130% Number of Observations = 31 Water Year = 2019 First Quartile = 105% Median = 130% Third Quartile = 130% Number of Observations = 31 Water Year = 2019 First Quartile = 105% Median = 130% Third Quartile = 130% Number of Observations = 31 Water Year = 2019 First Quartile = 105% Median = 130% Third Quartile = 130% Number of Observations = 31 Water Year = 2019 First Quartile = 105% Median = 130% Third Quartile = 130% Number of Observations = 31 Water Year = 2017 First Quartile = 102% Median = 108% Third Quartile = 120% Number of Observations = 45 Water Year = 2017 First Quartile = 102% Median = 108% Third Quartile = 120% Number of Observations = 45 Water Year = 2017 First Quartile = 102% Median = 108% Third Quartile = 120% Number of Observations = 45 Water Year = 2017 First Quartile = 102% Median = 108% Third Quartile = 120% Number of Observations = 45 Water Year = 2017 First Quartile = 102% Median = 108% Third Quartile = 120% Number of Observations = 45 Water Year = 2017 First Quartile = 102% Median = 108% Third Quartile = 120% Number of Observations = 45 Water Year = 2017 First Quartile = 102% Median = 108% Third Quartile = 120% Number of Observations = 45 Water Year = 2017 First Quartile = 102% Median = 108% Third Quartile = 120% Number of Observations = 45 Water Year = 2016 First Quartile = 102% Median = 105% Third Quartile = 111% Number of Observations = 38 Water Year = 2016 First Quartile = 102% Median = 105% Third Quartile = 111% Number of Observations = 38 Water Year = 2016 First Quartile = 102% Median = 105% Third Quartile = 111% Number of Observations = 38 Water Year = 2016 First Quartile = 102% Median = 105% Third Quartile = 111% Number of Observations = 38 Water Year = 2016 First Quartile = 102% Median = 105% Third Quartile = 111% Number of Observations = 38 Water Year = 2016 First Quartile = 102% Median = 105% Third Quartile = 111% Number of Observations = 38 Water Year = 2016 First Quartile = 102% Median = 105% Third Quartile = 111% Number of Observations = 38 Water Year = 2016 First Quartile = 102% Median = 105% Third Quartile = 111% Number of Observations = 38 Water Year = 2015 First Quartile = 99% Median = 101% Third Quartile = 104% Number of Observations = 21 Water Year = 2015 First Quartile = 99% Median = 101% Third Quartile = 104% Number of Observations = 21 Water Year = 2015 First Quartile = 99% Median = 101% Third Quartile = 104% Number of Observations = 21 Water Year = 2015 First Quartile = 99% Median = 101% Third Quartile = 104% Number of Observations = 21 Water Year = 2015 First Quartile = 99% Median = 101% Third Quartile = 104% Number of Observations = 21 Water Year = 2015 First Quartile = 99% Median = 101% Third Quartile = 104% Number of Observations = 21 Water Year = 2015 First Quartile = 99% Median = 101% Third Quartile = 104% Number of Observations = 21 Water Year = 2015 First Quartile = 99% Median = 101% Third Quartile = 104% Number of Observations = 21 Y = 1
The SGPlot Procedure

Percent Recovery Statistics for Chromium, unfltd, cICP-MS, recov

Analyte Parm-meth Code Water Year # of
Samples		 25th Pctl 50th Pctl
(Median)		 75th Pctl
Chromium, unfltd, cICP-MS, recov 01034PLM77 2015 21 99.5% 100.9% 104.3%
    2016 38 102.4% 105.2% 110.8%
    2017 45 102.1% 108.1% 120.2%
    2019 31 105.5% 136.4% 160.9%
    2020 30 93.6% 96.1% 100.8%
    2021 42 93.6% 97.6% 100.3%
    2022 39 95.1% 99.7% 104.7%
    2023 40 91.5% 97.2% 101.7%
    2024 34 92.0% 99.6% 106.2%

Hover over boxplot or outliers for additional information
Chart generated 03/27/2025
Charts and data secured from this U.S. Geological Survey (USGS) web page (identified as IBSP) have not received official USGS approval and as such are provisional and subject to revision. The charts and data are released on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use.


- Cobalt, fltd, cICP-MS -
Lab: NWQL, PCode: 01035, MCode: PLM10
Analysis Dates: 10/09/09 through 09/28/24
Open Data Set
Boxplot Description

Water Year = 2024 plotvalue = 92% pctrecov = 92% Water Year = 2024 plotvalue = 82% pctrecov = 82% Water Year = 2023 plotvalue = 109% pctrecov = 109% Water Year = 2023 plotvalue = 110% pctrecov = 110% Water Year = 2023 plotvalue = 113% pctrecov = 113% Water Year = 2023 plotvalue = 116% pctrecov = 116% Water Year = 2023 plotvalue = 95% pctrecov = 95% Water Year = 2023 plotvalue = 95% pctrecov = 95% Water Year = 2022 plotvalue = 93% pctrecov = 93% Water Year = 2022 plotvalue = 92% pctrecov = 92% Water Year = 2022 plotvalue = 91% pctrecov = 91% Water Year = 2021 plotvalue = 115% pctrecov = 115% Water Year = 2021 plotvalue = 116% pctrecov = 116% Water Year = 2017 plotvalue = 117% pctrecov = 117% Water Year = 2017 plotvalue = 120% pctrecov = 120% Water Year = 2017 plotvalue = 130% pctrecov = 184% Water Year = 2017 plotvalue = 94% pctrecov = 94% Water Year = 2016 plotvalue = 109% pctrecov = 109% Water Year = 2016 plotvalue = 82% pctrecov = 82% Water Year = 2016 plotvalue = 82% pctrecov = 82% Water Year = 2016 plotvalue = 81% pctrecov = 81% Water Year = 2016 plotvalue = 70% pctrecov = 19% Water Year = 2016 plotvalue = 70% pctrecov = 1% Water Year = 2016 plotvalue = 70% pctrecov = 57% Water Year = 2015 plotvalue = 111% pctrecov = 111% Water Year = 2015 plotvalue = 112% pctrecov = 112% Water Year = 2015 plotvalue = 113% pctrecov = 113% Water Year = 2015 plotvalue = 114% pctrecov = 114% Water Year = 2015 plotvalue = 130% pctrecov = 137% Water Year = 2015 plotvalue = 76% pctrecov = 76% Water Year = 2015 plotvalue = 70% pctrecov = 17% Water Year = 2014 plotvalue = 104% pctrecov = 104% Water Year = 2014 plotvalue = 104% pctrecov = 104% Water Year = 2014 plotvalue = 104% pctrecov = 104% Water Year = 2014 plotvalue = 76% pctrecov = 76% Water Year = 2014 plotvalue = 76% pctrecov = 76% Water Year = 2014 plotvalue = 70% pctrecov = 9% Water Year = 2014 plotvalue = 70% pctrecov = 49% Water Year = 2013 plotvalue = 70% pctrecov = 18% Water Year = 2012 plotvalue = 112% pctrecov = 112% Water Year = 2012 plotvalue = 114% pctrecov = 114% Water Year = 2012 plotvalue = 115% pctrecov = 115% Water Year = 2012 plotvalue = 118% pctrecov = 118% Water Year = 2012 plotvalue = 87% pctrecov = 87% Water Year = 2012 plotvalue = 70% pctrecov = 1% Water Year = 2012 plotvalue = 70% pctrecov = 27% Water Year = 2012 plotvalue = 70% pctrecov = 4% Water Year = 2011 plotvalue = 81% pctrecov = 81% Water Year = 2011 plotvalue = 79% pctrecov = 79% Water Year = 2011 plotvalue = 78% pctrecov = 78% Water Year = 2011 plotvalue = 70% pctrecov = 7% Water Year = 2010 plotvalue = 112% pctrecov = 112% Water Year = 2010 plotvalue = 117% pctrecov = 117% Water Year = 2010 plotvalue = 83% pctrecov = 83% Water Year = 2010 plotvalue = 80% pctrecov = 80% Water Year = 2024 First Quartile = 101% Median = 104% Third Quartile = 107% Number of Observations = 73 Water Year = 2024 First Quartile = 101% Median = 104% Third Quartile = 107% Number of Observations = 73 Water Year = 2024 First Quartile = 101% Median = 104% Third Quartile = 107% Number of Observations = 73 Water Year = 2024 First Quartile = 101% Median = 104% Third Quartile = 107% Number of Observations = 73 Water Year = 2024 First Quartile = 101% Median = 104% Third Quartile = 107% Number of Observations = 73 Water Year = 2024 First Quartile = 101% Median = 104% Third Quartile = 107% Number of Observations = 73 Water Year = 2024 First Quartile = 101% Median = 104% Third Quartile = 107% Number of Observations = 73 Water Year = 2024 First Quartile = 101% Median = 104% Third Quartile = 107% Number of Observations = 73 Water Year = 2023 First Quartile = 100% Median = 102% Third Quartile = 103% Number of Observations = 89 Water Year = 2023 First Quartile = 100% Median = 102% Third Quartile = 103% Number of Observations = 89 Water Year = 2023 First Quartile = 100% Median = 102% Third Quartile = 103% Number of Observations = 89 Water Year = 2023 First Quartile = 100% Median = 102% Third Quartile = 103% Number of Observations = 89 Water Year = 2023 First Quartile = 100% Median = 102% Third Quartile = 103% Number of Observations = 89 Water Year = 2023 First Quartile = 100% Median = 102% Third Quartile = 103% Number of Observations = 89 Water Year = 2023 First Quartile = 100% Median = 102% Third Quartile = 103% Number of Observations = 89 Water Year = 2023 First Quartile = 100% Median = 102% Third Quartile = 103% Number of Observations = 89 Water Year = 2022 First Quartile = 100% Median = 102% Third Quartile = 104% Number of Observations = 89 Water Year = 2022 First Quartile = 100% Median = 102% Third Quartile = 104% Number of Observations = 89 Water Year = 2022 First Quartile = 100% Median = 102% Third Quartile = 104% Number of Observations = 89 Water Year = 2022 First Quartile = 100% Median = 102% Third Quartile = 104% Number of Observations = 89 Water Year = 2022 First Quartile = 100% Median = 102% Third Quartile = 104% Number of Observations = 89 Water Year = 2022 First Quartile = 100% Median = 102% Third Quartile = 104% Number of Observations = 89 Water Year = 2022 First Quartile = 100% Median = 102% Third Quartile = 104% Number of Observations = 89 Water Year = 2022 First Quartile = 100% Median = 102% Third Quartile = 104% Number of Observations = 89 Water Year = 2021 First Quartile = 99% Median = 102% Third Quartile = 105% Number of Observations = 90 Water Year = 2021 First Quartile = 99% Median = 102% Third Quartile = 105% Number of Observations = 90 Water Year = 2021 First Quartile = 99% Median = 102% Third Quartile = 105% Number of Observations = 90 Water Year = 2021 First Quartile = 99% Median = 102% Third Quartile = 105% Number of Observations = 90 Water Year = 2021 First Quartile = 99% Median = 102% Third Quartile = 105% Number of Observations = 90 Water Year = 2021 First Quartile = 99% Median = 102% Third Quartile = 105% Number of Observations = 90 Water Year = 2021 First Quartile = 99% Median = 102% Third Quartile = 105% Number of Observations = 90 Water Year = 2021 First Quartile = 99% Median = 102% Third Quartile = 105% Number of Observations = 90 Water Year = 2020 First Quartile = 93% Median = 98% Third Quartile = 103% Number of Observations = 86 Water Year = 2020 First Quartile = 93% Median = 98% Third Quartile = 103% Number of Observations = 86 Water Year = 2020 First Quartile = 93% Median = 98% Third Quartile = 103% Number of Observations = 86 Water Year = 2020 First Quartile = 93% Median = 98% Third Quartile = 103% Number of Observations = 86 Water Year = 2020 First Quartile = 93% Median = 98% Third Quartile = 103% Number of Observations = 86 Water Year = 2020 First Quartile = 93% Median = 98% Third Quartile = 103% Number of Observations = 86 Water Year = 2020 First Quartile = 93% Median = 98% Third Quartile = 103% Number of Observations = 86 Water Year = 2020 First Quartile = 93% Median = 98% Third Quartile = 103% Number of Observations = 86 Water Year = 2019 First Quartile = 94% Median = 98% Third Quartile = 101% Number of Observations = 78 Water Year = 2019 First Quartile = 94% Median = 98% Third Quartile = 101% Number of Observations = 78 Water Year = 2019 First Quartile = 94% Median = 98% Third Quartile = 101% Number of Observations = 78 Water Year = 2019 First Quartile = 94% Median = 98% Third Quartile = 101% Number of Observations = 78 Water Year = 2019 First Quartile = 94% Median = 98% Third Quartile = 101% Number of Observations = 78 Water Year = 2019 First Quartile = 94% Median = 98% Third Quartile = 101% Number of Observations = 78 Water Year = 2019 First Quartile = 94% Median = 98% Third Quartile = 101% Number of Observations = 78 Water Year = 2019 First Quartile = 94% Median = 98% Third Quartile = 101% Number of Observations = 78 Water Year = 2017 First Quartile = 103% Median = 105% Third Quartile = 107% Number of Observations = 90 Water Year = 2017 First Quartile = 103% Median = 105% Third Quartile = 107% Number of Observations = 90 Water Year = 2017 First Quartile = 103% Median = 105% Third Quartile = 107% Number of Observations = 90 Water Year = 2017 First Quartile = 103% Median = 105% Third Quartile = 107% Number of Observations = 90 Water Year = 2017 First Quartile = 103% Median = 105% Third Quartile = 107% Number of Observations = 90 Water Year = 2017 First Quartile = 103% Median = 105% Third Quartile = 107% Number of Observations = 90 Water Year = 2017 First Quartile = 103% Median = 105% Third Quartile = 107% Number of Observations = 90 Water Year = 2017 First Quartile = 103% Median = 105% Third Quartile = 107% Number of Observations = 90 Water Year = 2016 First Quartile = 94% Median = 97% Third Quartile = 100% Number of Observations = 90 Water Year = 2016 First Quartile = 94% Median = 97% Third Quartile = 100% Number of Observations = 90 Water Year = 2016 First Quartile = 94% Median = 97% Third Quartile = 100% Number of Observations = 90 Water Year = 2016 First Quartile = 94% Median = 97% Third Quartile = 100% Number of Observations = 90 Water Year = 2016 First Quartile = 94% Median = 97% Third Quartile = 100% Number of Observations = 90 Water Year = 2016 First Quartile = 94% Median = 97% Third Quartile = 100% Number of Observations = 90 Water Year = 2016 First Quartile = 94% Median = 97% Third Quartile = 100% Number of Observations = 90 Water Year = 2016 First Quartile = 94% Median = 97% Third Quartile = 100% Number of Observations = 90 Water Year = 2015 First Quartile = 97% Median = 99% Third Quartile = 102% Number of Observations = 90 Water Year = 2015 First Quartile = 97% Median = 99% Third Quartile = 102% Number of Observations = 90 Water Year = 2015 First Quartile = 97% Median = 99% Third Quartile = 102% Number of Observations = 90 Water Year = 2015 First Quartile = 97% Median = 99% Third Quartile = 102% Number of Observations = 90 Water Year = 2015 First Quartile = 97% Median = 99% Third Quartile = 102% Number of Observations = 90 Water Year = 2015 First Quartile = 97% Median = 99% Third Quartile = 102% Number of Observations = 90 Water Year = 2015 First Quartile = 97% Median = 99% Third Quartile = 102% Number of Observations = 90 Water Year = 2015 First Quartile = 97% Median = 99% Third Quartile = 102% Number of Observations = 90 Water Year = 2014 First Quartile = 94% Median = 95% Third Quartile = 97% Number of Observations = 83 Water Year = 2014 First Quartile = 94% Median = 95% Third Quartile = 97% Number of Observations = 83 Water Year = 2014 First Quartile = 94% Median = 95% Third Quartile = 97% Number of Observations = 83 Water Year = 2014 First Quartile = 94% Median = 95% Third Quartile = 97% Number of Observations = 83 Water Year = 2014 First Quartile = 94% Median = 95% Third Quartile = 97% Number of Observations = 83 Water Year = 2014 First Quartile = 94% Median = 95% Third Quartile = 97% Number of Observations = 83 Water Year = 2014 First Quartile = 94% Median = 95% Third Quartile = 97% Number of Observations = 83 Water Year = 2014 First Quartile = 94% Median = 95% Third Quartile = 97% Number of Observations = 83 Water Year = 2013 First Quartile = 96% Median = 100% Third Quartile = 102% Number of Observations = 108 Water Year = 2013 First Quartile = 96% Median = 100% Third Quartile = 102% Number of Observations = 108 Water Year = 2013 First Quartile = 96% Median = 100% Third Quartile = 102% Number of Observations = 108 Water Year = 2013 First Quartile = 96% Median = 100% Third Quartile = 102% Number of Observations = 108 Water Year = 2013 First Quartile = 96% Median = 100% Third Quartile = 102% Number of Observations = 108 Water Year = 2013 First Quartile = 96% Median = 100% Third Quartile = 102% Number of Observations = 108 Water Year = 2013 First Quartile = 96% Median = 100% Third Quartile = 102% Number of Observations = 108 Water Year = 2013 First Quartile = 96% Median = 100% Third Quartile = 102% Number of Observations = 108 Water Year = 2012 First Quartile = 97% Median = 100% Third Quartile = 103% Number of Observations = 132 Water Year = 2012 First Quartile = 97% Median = 100% Third Quartile = 103% Number of Observations = 132 Water Year = 2012 First Quartile = 97% Median = 100% Third Quartile = 103% Number of Observations = 132 Water Year = 2012 First Quartile = 97% Median = 100% Third Quartile = 103% Number of Observations = 132 Water Year = 2012 First Quartile = 97% Median = 100% Third Quartile = 103% Number of Observations = 132 Water Year = 2012 First Quartile = 97% Median = 100% Third Quartile = 103% Number of Observations = 132 Water Year = 2012 First Quartile = 97% Median = 100% Third Quartile = 103% Number of Observations = 132 Water Year = 2012 First Quartile = 97% Median = 100% Third Quartile = 103% Number of Observations = 132 Water Year = 2011 First Quartile = 92% Median = 95% Third Quartile = 98% Number of Observations = 131 Water Year = 2011 First Quartile = 92% Median = 95% Third Quartile = 98% Number of Observations = 131 Water Year = 2011 First Quartile = 92% Median = 95% Third Quartile = 98% Number of Observations = 131 Water Year = 2011 First Quartile = 92% Median = 95% Third Quartile = 98% Number of Observations = 131 Water Year = 2011 First Quartile = 92% Median = 95% Third Quartile = 98% Number of Observations = 131 Water Year = 2011 First Quartile = 92% Median = 95% Third Quartile = 98% Number of Observations = 131 Water Year = 2011 First Quartile = 92% Median = 95% Third Quartile = 98% Number of Observations = 131 Water Year = 2011 First Quartile = 92% Median = 95% Third Quartile = 98% Number of Observations = 131 Water Year = 2010 First Quartile = 96% Median = 99% Third Quartile = 102% Number of Observations = 132 Water Year = 2010 First Quartile = 96% Median = 99% Third Quartile = 102% Number of Observations = 132 Water Year = 2010 First Quartile = 96% Median = 99% Third Quartile = 102% Number of Observations = 132 Water Year = 2010 First Quartile = 96% Median = 99% Third Quartile = 102% Number of Observations = 132 Water Year = 2010 First Quartile = 96% Median = 99% Third Quartile = 102% Number of Observations = 132 Water Year = 2010 First Quartile = 96% Median = 99% Third Quartile = 102% Number of Observations = 132 Water Year = 2010 First Quartile = 96% Median = 99% Third Quartile = 102% Number of Observations = 132 Water Year = 2010 First Quartile = 96% Median = 99% Third Quartile = 102% Number of Observations = 132 Y = 1
The SGPlot Procedure

Percent Recovery Statistics for Cobalt, fltd, cICP-MS

Analyte Parm-meth Code Water Year # of
Samples		 25th Pctl 50th Pctl
(Median)		 75th Pctl
Cobalt, fltd, cICP-MS 01035PLM10 2010 132 96.4% 98.8% 101.9%
    2011 131 92.0% 95.0% 98.3%
    2012 132 97.4% 99.9% 102.7%
    2013 108 95.8% 99.6% 102.4%
    2014 83 93.7% 95.3% 97.3%
    2015 90 97.3% 99.4% 102.3%
    2016 90 93.9% 96.5% 100.0%
    2017 90 103.0% 104.9% 107.3%
    2019 78 93.6% 97.6% 100.6%
    2020 86 92.5% 97.8% 102.7%
    2021 90 99.3% 101.9% 105.4%
    2022 89 100.2% 102.3% 104.3%
    2023 89 100.2% 102.0% 103.4%
    2024 73 101.2% 103.6% 106.9%

Hover over boxplot or outliers for additional information
Chart generated 03/27/2025
Charts and data secured from this U.S. Geological Survey (USGS) web page (identified as IBSP) have not received official USGS approval and as such are provisional and subject to revision. The charts and data are released on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use.


- Cobalt, unfltd, cICP-MS, recov -
Lab: NWQL, PCode: 01037, MCode: PLM11
Analysis Dates: 10/06/09 through 04/30/15
Open Data Set
Boxplot Description

Water Year = 2015 plotvalue = 76% pctrecov = 76% Water Year = 2015 plotvalue = 76% pctrecov = 76% Water Year = 2015 plotvalue = 76% pctrecov = 76% Water Year = 2015 plotvalue = 76% pctrecov = 76% Water Year = 2013 plotvalue = 109% pctrecov = 109% Water Year = 2013 plotvalue = 112% pctrecov = 112% Water Year = 2012 plotvalue = 119% pctrecov = 119% Water Year = 2012 plotvalue = 88% pctrecov = 88% Water Year = 2012 plotvalue = 87% pctrecov = 87% Water Year = 2015 First Quartile = 90% Median = 93% Third Quartile = 96% Number of Observations = 27 Water Year = 2015 First Quartile = 90% Median = 93% Third Quartile = 96% Number of Observations = 27 Water Year = 2015 First Quartile = 90% Median = 93% Third Quartile = 96% Number of Observations = 27 Water Year = 2015 First Quartile = 90% Median = 93% Third Quartile = 96% Number of Observations = 27 Water Year = 2015 First Quartile = 90% Median = 93% Third Quartile = 96% Number of Observations = 27 Water Year = 2015 First Quartile = 90% Median = 93% Third Quartile = 96% Number of Observations = 27 Water Year = 2015 First Quartile = 90% Median = 93% Third Quartile = 96% Number of Observations = 27 Water Year = 2015 First Quartile = 90% Median = 93% Third Quartile = 96% Number of Observations = 27 Water Year = 2014 First Quartile = 86% Median = 92% Third Quartile = 94% Number of Observations = 45 Water Year = 2014 First Quartile = 86% Median = 92% Third Quartile = 94% Number of Observations = 45 Water Year = 2014 First Quartile = 86% Median = 92% Third Quartile = 94% Number of Observations = 45 Water Year = 2014 First Quartile = 86% Median = 92% Third Quartile = 94% Number of Observations = 45 Water Year = 2014 First Quartile = 86% Median = 92% Third Quartile = 94% Number of Observations = 45 Water Year = 2014 First Quartile = 86% Median = 92% Third Quartile = 94% Number of Observations = 45 Water Year = 2014 First Quartile = 86% Median = 92% Third Quartile = 94% Number of Observations = 45 Water Year = 2014 First Quartile = 86% Median = 92% Third Quartile = 94% Number of Observations = 45 Water Year = 2013 First Quartile = 93% Median = 97% Third Quartile = 99% Number of Observations = 48 Water Year = 2013 First Quartile = 93% Median = 97% Third Quartile = 99% Number of Observations = 48 Water Year = 2013 First Quartile = 93% Median = 97% Third Quartile = 99% Number of Observations = 48 Water Year = 2013 First Quartile = 93% Median = 97% Third Quartile = 99% Number of Observations = 48 Water Year = 2013 First Quartile = 93% Median = 97% Third Quartile = 99% Number of Observations = 48 Water Year = 2013 First Quartile = 93% Median = 97% Third Quartile = 99% Number of Observations = 48 Water Year = 2013 First Quartile = 93% Median = 97% Third Quartile = 99% Number of Observations = 48 Water Year = 2013 First Quartile = 93% Median = 97% Third Quartile = 99% Number of Observations = 48 Water Year = 2012 First Quartile = 97% Median = 99% Third Quartile = 102% Number of Observations = 48 Water Year = 2012 First Quartile = 97% Median = 99% Third Quartile = 102% Number of Observations = 48 Water Year = 2012 First Quartile = 97% Median = 99% Third Quartile = 102% Number of Observations = 48 Water Year = 2012 First Quartile = 97% Median = 99% Third Quartile = 102% Number of Observations = 48 Water Year = 2012 First Quartile = 97% Median = 99% Third Quartile = 102% Number of Observations = 48 Water Year = 2012 First Quartile = 97% Median = 99% Third Quartile = 102% Number of Observations = 48 Water Year = 2012 First Quartile = 97% Median = 99% Third Quartile = 102% Number of Observations = 48 Water Year = 2012 First Quartile = 97% Median = 99% Third Quartile = 102% Number of Observations = 48 Water Year = 2011 First Quartile = 96% Median = 98% Third Quartile = 101% Number of Observations = 48 Water Year = 2011 First Quartile = 96% Median = 98% Third Quartile = 101% Number of Observations = 48 Water Year = 2011 First Quartile = 96% Median = 98% Third Quartile = 101% Number of Observations = 48 Water Year = 2011 First Quartile = 96% Median = 98% Third Quartile = 101% Number of Observations = 48 Water Year = 2011 First Quartile = 96% Median = 98% Third Quartile = 101% Number of Observations = 48 Water Year = 2011 First Quartile = 96% Median = 98% Third Quartile = 101% Number of Observations = 48 Water Year = 2011 First Quartile = 96% Median = 98% Third Quartile = 101% Number of Observations = 48 Water Year = 2011 First Quartile = 96% Median = 98% Third Quartile = 101% Number of Observations = 48 Water Year = 2010 First Quartile = 96% Median = 98% Third Quartile = 101% Number of Observations = 48 Water Year = 2010 First Quartile = 96% Median = 98% Third Quartile = 101% Number of Observations = 48 Water Year = 2010 First Quartile = 96% Median = 98% Third Quartile = 101% Number of Observations = 48 Water Year = 2010 First Quartile = 96% Median = 98% Third Quartile = 101% Number of Observations = 48 Water Year = 2010 First Quartile = 96% Median = 98% Third Quartile = 101% Number of Observations = 48 Water Year = 2010 First Quartile = 96% Median = 98% Third Quartile = 101% Number of Observations = 48 Water Year = 2010 First Quartile = 96% Median = 98% Third Quartile = 101% Number of Observations = 48 Water Year = 2010 First Quartile = 96% Median = 98% Third Quartile = 101% Number of Observations = 48 Water Year = 2009 First Quartile = 94% Median = 96% Third Quartile = 99% Number of Observations = 4 Water Year = 2009 First Quartile = 94% Median = 96% Third Quartile = 99% Number of Observations = 4 Water Year = 2009 First Quartile = 94% Median = 96% Third Quartile = 99% Number of Observations = 4 Water Year = 2009 First Quartile = 94% Median = 96% Third Quartile = 99% Number of Observations = 4 Water Year = 2009 First Quartile = 94% Median = 96% Third Quartile = 99% Number of Observations = 4 Water Year = 2009 First Quartile = 94% Median = 96% Third Quartile = 99% Number of Observations = 4 Water Year = 2009 First Quartile = 94% Median = 96% Third Quartile = 99% Number of Observations = 4 Water Year = 2009 First Quartile = 94% Median = 96% Third Quartile = 99% Number of Observations = 4 Y = 1
The SGPlot Procedure

Percent Recovery Statistics for Cobalt, unfltd, cICP-MS, recov

Analyte Parm-meth Code Water Year # of
Samples		 25th Pctl 50th Pctl
(Median)		 75th Pctl
Cobalt, unfltd, cICP-MS, recov 01037PLM11 2009 4 94.3% 96.2% 98.8%
    2010 48 96.4% 98.5% 101.1%
    2011 48 95.8% 98.1% 101.3%
    2012 48 97.1% 99.5% 102.1%
    2013 48 93.2% 97.2% 98.9%
    2014 45 86.0% 92.0% 94.3%
    2015 27 90.2% 92.9% 96.5%

Hover over boxplot or outliers for additional information
Chart generated 03/27/2025
Charts and data secured from this U.S. Geological Survey (USGS) web page (identified as IBSP) have not received official USGS approval and as such are provisional and subject to revision. The charts and data are released on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use.


- Cobalt, unfltd, cICP-MS, recov -
Lab: NWQL, PCode: 01037, MCode: PLM77
Analysis Dates: 05/12/15 through 09/25/24
Open Data Set
Boxplot Description

Water Year = 2024 plotvalue = 120% pctrecov = 120% Water Year = 2023 plotvalue = 94% pctrecov = 94% Water Year = 2022 plotvalue = 113% pctrecov = 113% Water Year = 2016 plotvalue = 114% pctrecov = 114% Water Year = 2016 plotvalue = 76% pctrecov = 76% Water Year = 2016 plotvalue = 73% pctrecov = 73% Water Year = 2016 plotvalue = 70% pctrecov = 64% Water Year = 2015 plotvalue = 106% pctrecov = 106% Water Year = 2015 plotvalue = 107% pctrecov = 107% Water Year = 2024 First Quartile = 99% Median = 102% Third Quartile = 106% Number of Observations = 42 Water Year = 2024 First Quartile = 99% Median = 102% Third Quartile = 106% Number of Observations = 42 Water Year = 2024 First Quartile = 99% Median = 102% Third Quartile = 106% Number of Observations = 42 Water Year = 2024 First Quartile = 99% Median = 102% Third Quartile = 106% Number of Observations = 42 Water Year = 2024 First Quartile = 99% Median = 102% Third Quartile = 106% Number of Observations = 42 Water Year = 2024 First Quartile = 99% Median = 102% Third Quartile = 106% Number of Observations = 42 Water Year = 2024 First Quartile = 99% Median = 102% Third Quartile = 106% Number of Observations = 42 Water Year = 2024 First Quartile = 99% Median = 102% Third Quartile = 106% Number of Observations = 42 Water Year = 2023 First Quartile = 101% Median = 102% Third Quartile = 105% Number of Observations = 48 Water Year = 2023 First Quartile = 101% Median = 102% Third Quartile = 105% Number of Observations = 48 Water Year = 2023 First Quartile = 101% Median = 102% Third Quartile = 105% Number of Observations = 48 Water Year = 2023 First Quartile = 101% Median = 102% Third Quartile = 105% Number of Observations = 48 Water Year = 2023 First Quartile = 101% Median = 102% Third Quartile = 105% Number of Observations = 48 Water Year = 2023 First Quartile = 101% Median = 102% Third Quartile = 105% Number of Observations = 48 Water Year = 2023 First Quartile = 101% Median = 102% Third Quartile = 105% Number of Observations = 48 Water Year = 2023 First Quartile = 101% Median = 102% Third Quartile = 105% Number of Observations = 48 Water Year = 2022 First Quartile = 100% Median = 101% Third Quartile = 105% Number of Observations = 47 Water Year = 2022 First Quartile = 100% Median = 101% Third Quartile = 105% Number of Observations = 47 Water Year = 2022 First Quartile = 100% Median = 101% Third Quartile = 105% Number of Observations = 47 Water Year = 2022 First Quartile = 100% Median = 101% Third Quartile = 105% Number of Observations = 47 Water Year = 2022 First Quartile = 100% Median = 101% Third Quartile = 105% Number of Observations = 47 Water Year = 2022 First Quartile = 100% Median = 101% Third Quartile = 105% Number of Observations = 47 Water Year = 2022 First Quartile = 100% Median = 101% Third Quartile = 105% Number of Observations = 47 Water Year = 2022 First Quartile = 100% Median = 101% Third Quartile = 105% Number of Observations = 47 Water Year = 2021 First Quartile = 97% Median = 100% Third Quartile = 104% Number of Observations = 48 Water Year = 2021 First Quartile = 97% Median = 100% Third Quartile = 104% Number of Observations = 48 Water Year = 2021 First Quartile = 97% Median = 100% Third Quartile = 104% Number of Observations = 48 Water Year = 2021 First Quartile = 97% Median = 100% Third Quartile = 104% Number of Observations = 48 Water Year = 2021 First Quartile = 97% Median = 100% Third Quartile = 104% Number of Observations = 48 Water Year = 2021 First Quartile = 97% Median = 100% Third Quartile = 104% Number of Observations = 48 Water Year = 2021 First Quartile = 97% Median = 100% Third Quartile = 104% Number of Observations = 48 Water Year = 2021 First Quartile = 97% Median = 100% Third Quartile = 104% Number of Observations = 48 Water Year = 2020 First Quartile = 95% Median = 99% Third Quartile = 105% Number of Observations = 44 Water Year = 2020 First Quartile = 95% Median = 99% Third Quartile = 105% Number of Observations = 44 Water Year = 2020 First Quartile = 95% Median = 99% Third Quartile = 105% Number of Observations = 44 Water Year = 2020 First Quartile = 95% Median = 99% Third Quartile = 105% Number of Observations = 44 Water Year = 2020 First Quartile = 95% Median = 99% Third Quartile = 105% Number of Observations = 44 Water Year = 2020 First Quartile = 95% Median = 99% Third Quartile = 105% Number of Observations = 44 Water Year = 2020 First Quartile = 95% Median = 99% Third Quartile = 105% Number of Observations = 44 Water Year = 2020 First Quartile = 95% Median = 99% Third Quartile = 105% Number of Observations = 44 Water Year = 2019 First Quartile = 97% Median = 100% Third Quartile = 103% Number of Observations = 40 Water Year = 2019 First Quartile = 97% Median = 100% Third Quartile = 103% Number of Observations = 40 Water Year = 2019 First Quartile = 97% Median = 100% Third Quartile = 103% Number of Observations = 40 Water Year = 2019 First Quartile = 97% Median = 100% Third Quartile = 103% Number of Observations = 40 Water Year = 2019 First Quartile = 97% Median = 100% Third Quartile = 103% Number of Observations = 40 Water Year = 2019 First Quartile = 97% Median = 100% Third Quartile = 103% Number of Observations = 40 Water Year = 2019 First Quartile = 97% Median = 100% Third Quartile = 103% Number of Observations = 40 Water Year = 2019 First Quartile = 97% Median = 100% Third Quartile = 103% Number of Observations = 40 Water Year = 2017 First Quartile = 96% Median = 99% Third Quartile = 102% Number of Observations = 48 Water Year = 2017 First Quartile = 96% Median = 99% Third Quartile = 102% Number of Observations = 48 Water Year = 2017 First Quartile = 96% Median = 99% Third Quartile = 102% Number of Observations = 48 Water Year = 2017 First Quartile = 96% Median = 99% Third Quartile = 102% Number of Observations = 48 Water Year = 2017 First Quartile = 96% Median = 99% Third Quartile = 102% Number of Observations = 48 Water Year = 2017 First Quartile = 96% Median = 99% Third Quartile = 102% Number of Observations = 48 Water Year = 2017 First Quartile = 96% Median = 99% Third Quartile = 102% Number of Observations = 48 Water Year = 2017 First Quartile = 96% Median = 99% Third Quartile = 102% Number of Observations = 48 Water Year = 2016 First Quartile = 94% Median = 98% Third Quartile = 101% Number of Observations = 48 Water Year = 2016 First Quartile = 94% Median = 98% Third Quartile = 101% Number of Observations = 48 Water Year = 2016 First Quartile = 94% Median = 98% Third Quartile = 101% Number of Observations = 48 Water Year = 2016 First Quartile = 94% Median = 98% Third Quartile = 101% Number of Observations = 48 Water Year = 2016 First Quartile = 94% Median = 98% Third Quartile = 101% Number of Observations = 48 Water Year = 2016 First Quartile = 94% Median = 98% Third Quartile = 101% Number of Observations = 48 Water Year = 2016 First Quartile = 94% Median = 98% Third Quartile = 101% Number of Observations = 48 Water Year = 2016 First Quartile = 94% Median = 98% Third Quartile = 101% Number of Observations = 48 Water Year = 2015 First Quartile = 92% Median = 94% Third Quartile = 97% Number of Observations = 21 Water Year = 2015 First Quartile = 92% Median = 94% Third Quartile = 97% Number of Observations = 21 Water Year = 2015 First Quartile = 92% Median = 94% Third Quartile = 97% Number of Observations = 21 Water Year = 2015 First Quartile = 92% Median = 94% Third Quartile = 97% Number of Observations = 21 Water Year = 2015 First Quartile = 92% Median = 94% Third Quartile = 97% Number of Observations = 21 Water Year = 2015 First Quartile = 92% Median = 94% Third Quartile = 97% Number of Observations = 21 Water Year = 2015 First Quartile = 92% Median = 94% Third Quartile = 97% Number of Observations = 21 Water Year = 2015 First Quartile = 92% Median = 94% Third Quartile = 97% Number of Observations = 21 Y = 1
The SGPlot Procedure

Percent Recovery Statistics for Cobalt, unfltd, cICP-MS, recov

Analyte Parm-meth Code Water Year # of
Samples		 25th Pctl 50th Pctl
(Median)		 75th Pctl
Cobalt, unfltd, cICP-MS, recov 01037PLM77 2015 21 91.7% 94.4% 97.3%
    2016 48 93.5% 97.8% 101.4%
    2017 48 96.4% 99.1% 102.1%
    2019 40 96.9% 100.5% 103.3%
    2020 44 95.3% 99.4% 105.1%
    2021 48 97.4% 100.3% 104.4%
    2022 47 100.0% 101.2% 104.8%
    2023 48 100.5% 102.2% 104.8%
    2024 42 99.0% 102.3% 105.6%

Hover over boxplot or outliers for additional information
Chart generated 03/27/2025
Charts and data secured from this U.S. Geological Survey (USGS) web page (identified as IBSP) have not received official USGS approval and as such are provisional and subject to revision. The charts and data are released on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use.


- Copper, fltd, cICP-MS -
Lab: NWQL, PCode: 01040, MCode: PLM10
Analysis Dates: 10/09/09 through 09/28/24
Open Data Set
Boxplot Description

Water Year = 2024 plotvalue = 115% pctrecov = 115% Water Year = 2024 plotvalue = 117% pctrecov = 117% Water Year = 2024 plotvalue = 119% pctrecov = 119% Water Year = 2024 plotvalue = 121% pctrecov = 121% Water Year = 2024 plotvalue = 93% pctrecov = 93% Water Year = 2023 plotvalue = 113% pctrecov = 113% Water Year = 2023 plotvalue = 115% pctrecov = 115% Water Year = 2023 plotvalue = 130% pctrecov = 140% Water Year = 2022 plotvalue = 92% pctrecov = 92% Water Year = 2021 plotvalue = 79% pctrecov = 79% Water Year = 2019 plotvalue = 129% pctrecov = 129% Water Year = 2019 plotvalue = 130% pctrecov = 231% Water Year = 2019 plotvalue = 130% pctrecov = 344% Water Year = 2019 plotvalue = 130% pctrecov = 131% Water Year = 2019 plotvalue = 130% pctrecov = 143% Water Year = 2019 plotvalue = 130% pctrecov = 353% Water Year = 2019 plotvalue = 70% pctrecov = 13% Water Year = 2017 plotvalue = 130% pctrecov = 130% Water Year = 2017 plotvalue = 130% pctrecov = 197% Water Year = 2017 plotvalue = 130% pctrecov = 146% Water Year = 2017 plotvalue = 130% pctrecov = 218% Water Year = 2017 plotvalue = 130% pctrecov = 133% Water Year = 2017 plotvalue = 130% pctrecov = 139% Water Year = 2017 plotvalue = 130% pctrecov = 136% Water Year = 2017 plotvalue = 130% pctrecov = 136% Water Year = 2016 plotvalue = 70% pctrecov = 16% Water Year = 2016 plotvalue = 70% pctrecov = 20% Water Year = 2016 plotvalue = 70% pctrecov = 50% Water Year = 2015 plotvalue = 110% pctrecov = 110% Water Year = 2015 plotvalue = 111% pctrecov = 111% Water Year = 2015 plotvalue = 130% pctrecov = 162% Water Year = 2015 plotvalue = 130% pctrecov = 263% Water Year = 2015 plotvalue = 70% pctrecov = 67% Water Year = 2014 plotvalue = 110% pctrecov = 110% Water Year = 2014 plotvalue = 110% pctrecov = 110% Water Year = 2014 plotvalue = 111% pctrecov = 111% Water Year = 2014 plotvalue = 112% pctrecov = 112% Water Year = 2014 plotvalue = 113% pctrecov = 113% Water Year = 2014 plotvalue = 113% pctrecov = 113% Water Year = 2014 plotvalue = 127% pctrecov = 127% Water Year = 2014 plotvalue = 130% pctrecov = 161% Water Year = 2014 plotvalue = 130% pctrecov = 135% Water Year = 2014 plotvalue = 77% pctrecov = 77% Water Year = 2014 plotvalue = 77% pctrecov = 77% Water Year = 2014 plotvalue = 70% pctrecov = 51% Water Year = 2014 plotvalue = 70% pctrecov = 67% Water Year = 2014 plotvalue = 70% pctrecov = 67% Water Year = 2014 plotvalue = 70% pctrecov = 17% Water Year = 2013 plotvalue = 120% pctrecov = 120% Water Year = 2013 plotvalue = 125% pctrecov = 125% Water Year = 2013 plotvalue = 127% pctrecov = 127% Water Year = 2012 plotvalue = 110% pctrecov = 110% Water Year = 2012 plotvalue = 112% pctrecov = 112% Water Year = 2012 plotvalue = 116% pctrecov = 116% Water Year = 2012 plotvalue = 84% pctrecov = 84% Water Year = 2012 plotvalue = 70% pctrecov = 16% Water Year = 2012 plotvalue = 70% pctrecov = 6% Water Year = 2012 plotvalue = 70% pctrecov = 5% Water Year = 2011 plotvalue = 117% pctrecov = 117% Water Year = 2011 plotvalue = 120% pctrecov = 120% Water Year = 2011 plotvalue = 130% pctrecov = 144% Water Year = 2011 plotvalue = 82% pctrecov = 82% Water Year = 2011 plotvalue = 81% pctrecov = 81% Water Year = 2011 plotvalue = 74% pctrecov = 74% Water Year = 2011 plotvalue = 70% pctrecov = 16% Water Year = 2010 plotvalue = 118% pctrecov = 118% Water Year = 2010 plotvalue = 119% pctrecov = 119% Water Year = 2010 plotvalue = 123% pctrecov = 123% Water Year = 2010 plotvalue = 126% pctrecov = 126% Water Year = 2010 plotvalue = 130% pctrecov = 148% Water Year = 2010 plotvalue = 130% pctrecov = 150% Water Year = 2010 plotvalue = 130% pctrecov = 177% Water Year = 2010 plotvalue = 130% pctrecov = 187% Water Year = 2010 plotvalue = 75% pctrecov = 75% Water Year = 2010 plotvalue = 70% pctrecov = 61% Water Year = 2024 First Quartile = 101% Median = 104% Third Quartile = 106% Number of Observations = 73 Water Year = 2024 First Quartile = 101% Median = 104% Third Quartile = 106% Number of Observations = 73 Water Year = 2024 First Quartile = 101% Median = 104% Third Quartile = 106% Number of Observations = 73 Water Year = 2024 First Quartile = 101% Median = 104% Third Quartile = 106% Number of Observations = 73 Water Year = 2024 First Quartile = 101% Median = 104% Third Quartile = 106% Number of Observations = 73 Water Year = 2024 First Quartile = 101% Median = 104% Third Quartile = 106% Number of Observations = 73 Water Year = 2024 First Quartile = 101% Median = 104% Third Quartile = 106% Number of Observations = 73 Water Year = 2024 First Quartile = 101% Median = 104% Third Quartile = 106% Number of Observations = 73 Water Year = 2023 First Quartile = 100% Median = 102% Third Quartile = 104% Number of Observations = 89 Water Year = 2023 First Quartile = 100% Median = 102% Third Quartile = 104% Number of Observations = 89 Water Year = 2023 First Quartile = 100% Median = 102% Third Quartile = 104% Number of Observations = 89 Water Year = 2023 First Quartile = 100% Median = 102% Third Quartile = 104% Number of Observations = 89 Water Year = 2023 First Quartile = 100% Median = 102% Third Quartile = 104% Number of Observations = 89 Water Year = 2023 First Quartile = 100% Median = 102% Third Quartile = 104% Number of Observations = 89 Water Year = 2023 First Quartile = 100% Median = 102% Third Quartile = 104% Number of Observations = 89 Water Year = 2023 First Quartile = 100% Median = 102% Third Quartile = 104% Number of Observations = 89 Water Year = 2022 First Quartile = 99% Median = 102% Third Quartile = 104% Number of Observations = 89 Water Year = 2022 First Quartile = 99% Median = 102% Third Quartile = 104% Number of Observations = 89 Water Year = 2022 First Quartile = 99% Median = 102% Third Quartile = 104% Number of Observations = 89 Water Year = 2022 First Quartile = 99% Median = 102% Third Quartile = 104% Number of Observations = 89 Water Year = 2022 First Quartile = 99% Median = 102% Third Quartile = 104% Number of Observations = 89 Water Year = 2022 First Quartile = 99% Median = 102% Third Quartile = 104% Number of Observations = 89 Water Year = 2022 First Quartile = 99% Median = 102% Third Quartile = 104% Number of Observations = 89 Water Year = 2022 First Quartile = 99% Median = 102% Third Quartile = 104% Number of Observations = 89 Water Year = 2021 First Quartile = 95% Median = 100% Third Quartile = 103% Number of Observations = 90 Water Year = 2021 First Quartile = 95% Median = 100% Third Quartile = 103% Number of Observations = 90 Water Year = 2021 First Quartile = 95% Median = 100% Third Quartile = 103% Number of Observations = 90 Water Year = 2021 First Quartile = 95% Median = 100% Third Quartile = 103% Number of Observations = 90 Water Year = 2021 First Quartile = 95% Median = 100% Third Quartile = 103% Number of Observations = 90 Water Year = 2021 First Quartile = 95% Median = 100% Third Quartile = 103% Number of Observations = 90 Water Year = 2021 First Quartile = 95% Median = 100% Third Quartile = 103% Number of Observations = 90 Water Year = 2021 First Quartile = 95% Median = 100% Third Quartile = 103% Number of Observations = 90 Water Year = 2020 First Quartile = 94% Median = 100% Third Quartile = 105% Number of Observations = 86 Water Year = 2020 First Quartile = 94% Median = 100% Third Quartile = 105% Number of Observations = 86 Water Year = 2020 First Quartile = 94% Median = 100% Third Quartile = 105% Number of Observations = 86 Water Year = 2020 First Quartile = 94% Median = 100% Third Quartile = 105% Number of Observations = 86 Water Year = 2020 First Quartile = 94% Median = 100% Third Quartile = 105% Number of Observations = 86 Water Year = 2020 First Quartile = 94% Median = 100% Third Quartile = 105% Number of Observations = 86 Water Year = 2020 First Quartile = 94% Median = 100% Third Quartile = 105% Number of Observations = 86 Water Year = 2020 First Quartile = 94% Median = 100% Third Quartile = 105% Number of Observations = 86 Water Year = 2019 First Quartile = 97% Median = 101% Third Quartile = 107% Number of Observations = 78 Water Year = 2019 First Quartile = 97% Median = 101% Third Quartile = 107% Number of Observations = 78 Water Year = 2019 First Quartile = 97% Median = 101% Third Quartile = 107% Number of Observations = 78 Water Year = 2019 First Quartile = 97% Median = 101% Third Quartile = 107% Number of Observations = 78 Water Year = 2019 First Quartile = 97% Median = 101% Third Quartile = 107% Number of Observations = 78 Water Year = 2019 First Quartile = 97% Median = 101% Third Quartile = 107% Number of Observations = 78 Water Year = 2019 First Quartile = 97% Median = 101% Third Quartile = 107% Number of Observations = 78 Water Year = 2019 First Quartile = 97% Median = 101% Third Quartile = 107% Number of Observations = 78 Water Year = 2017 First Quartile = 105% Median = 109% Third Quartile = 115% Number of Observations = 90 Water Year = 2017 First Quartile = 105% Median = 109% Third Quartile = 115% Number of Observations = 90 Water Year = 2017 First Quartile = 105% Median = 109% Third Quartile = 115% Number of Observations = 90 Water Year = 2017 First Quartile = 105% Median = 109% Third Quartile = 115% Number of Observations = 90 Water Year = 2017 First Quartile = 105% Median = 109% Third Quartile = 115% Number of Observations = 90 Water Year = 2017 First Quartile = 105% Median = 109% Third Quartile = 115% Number of Observations = 90 Water Year = 2017 First Quartile = 105% Median = 109% Third Quartile = 115% Number of Observations = 90 Water Year = 2017 First Quartile = 105% Median = 109% Third Quartile = 115% Number of Observations = 90 Water Year = 2016 First Quartile = 96% Median = 101% Third Quartile = 112% Number of Observations = 84 Water Year = 2016 First Quartile = 96% Median = 101% Third Quartile = 112% Number of Observations = 84 Water Year = 2016 First Quartile = 96% Median = 101% Third Quartile = 112% Number of Observations = 84 Water Year = 2016 First Quartile = 96% Median = 101% Third Quartile = 112% Number of Observations = 84 Water Year = 2016 First Quartile = 96% Median = 101% Third Quartile = 112% Number of Observations = 84 Water Year = 2016 First Quartile = 96% Median = 101% Third Quartile = 112% Number of Observations = 84 Water Year = 2016 First Quartile = 96% Median = 101% Third Quartile = 112% Number of Observations = 84 Water Year = 2016 First Quartile = 96% Median = 101% Third Quartile = 112% Number of Observations = 84 Water Year = 2015 First Quartile = 92% Median = 95% Third Quartile = 98% Number of Observations = 90 Water Year = 2015 First Quartile = 92% Median = 95% Third Quartile = 98% Number of Observations = 90 Water Year = 2015 First Quartile = 92% Median = 95% Third Quartile = 98% Number of Observations = 90 Water Year = 2015 First Quartile = 92% Median = 95% Third Quartile = 98% Number of Observations = 90 Water Year = 2015 First Quartile = 92% Median = 95% Third Quartile = 98% Number of Observations = 90 Water Year = 2015 First Quartile = 92% Median = 95% Third Quartile = 98% Number of Observations = 90 Water Year = 2015 First Quartile = 92% Median = 95% Third Quartile = 98% Number of Observations = 90 Water Year = 2015 First Quartile = 92% Median = 95% Third Quartile = 98% Number of Observations = 90 Water Year = 2014 First Quartile = 93% Median = 96% Third Quartile = 100% Number of Observations = 83 Water Year = 2014 First Quartile = 93% Median = 96% Third Quartile = 100% Number of Observations = 83 Water Year = 2014 First Quartile = 93% Median = 96% Third Quartile = 100% Number of Observations = 83 Water Year = 2014 First Quartile = 93% Median = 96% Third Quartile = 100% Number of Observations = 83 Water Year = 2014 First Quartile = 93% Median = 96% Third Quartile = 100% Number of Observations = 83 Water Year = 2014 First Quartile = 93% Median = 96% Third Quartile = 100% Number of Observations = 83 Water Year = 2014 First Quartile = 93% Median = 96% Third Quartile = 100% Number of Observations = 83 Water Year = 2014 First Quartile = 93% Median = 96% Third Quartile = 100% Number of Observations = 83 Water Year = 2013 First Quartile = 95% Median = 100% Third Quartile = 104% Number of Observations = 108 Water Year = 2013 First Quartile = 95% Median = 100% Third Quartile = 104% Number of Observations = 108 Water Year = 2013 First Quartile = 95% Median = 100% Third Quartile = 104% Number of Observations = 108 Water Year = 2013 First Quartile = 95% Median = 100% Third Quartile = 104% Number of Observations = 108 Water Year = 2013 First Quartile = 95% Median = 100% Third Quartile = 104% Number of Observations = 108 Water Year = 2013 First Quartile = 95% Median = 100% Third Quartile = 104% Number of Observations = 108 Water Year = 2013 First Quartile = 95% Median = 100% Third Quartile = 104% Number of Observations = 108 Water Year = 2013 First Quartile = 95% Median = 100% Third Quartile = 104% Number of Observations = 108 Water Year = 2012 First Quartile = 95% Median = 98% Third Quartile = 101% Number of Observations = 132 Water Year = 2012 First Quartile = 95% Median = 98% Third Quartile = 101% Number of Observations = 132 Water Year = 2012 First Quartile = 95% Median = 98% Third Quartile = 101% Number of Observations = 132 Water Year = 2012 First Quartile = 95% Median = 98% Third Quartile = 101% Number of Observations = 132 Water Year = 2012 First Quartile = 95% Median = 98% Third Quartile = 101% Number of Observations = 132 Water Year = 2012 First Quartile = 95% Median = 98% Third Quartile = 101% Number of Observations = 132 Water Year = 2012 First Quartile = 95% Median = 98% Third Quartile = 101% Number of Observations = 132 Water Year = 2012 First Quartile = 95% Median = 98% Third Quartile = 101% Number of Observations = 132 Water Year = 2011 First Quartile = 93% Median = 96% Third Quartile = 100% Number of Observations = 131 Water Year = 2011 First Quartile = 93% Median = 96% Third Quartile = 100% Number of Observations = 131 Water Year = 2011 First Quartile = 93% Median = 96% Third Quartile = 100% Number of Observations = 131 Water Year = 2011 First Quartile = 93% Median = 96% Third Quartile = 100% Number of Observations = 131 Water Year = 2011 First Quartile = 93% Median = 96% Third Quartile = 100% Number of Observations = 131 Water Year = 2011 First Quartile = 93% Median = 96% Third Quartile = 100% Number of Observations = 131 Water Year = 2011 First Quartile = 93% Median = 96% Third Quartile = 100% Number of Observations = 131 Water Year = 2011 First Quartile = 93% Median = 96% Third Quartile = 100% Number of Observations = 131 Water Year = 2010 First Quartile = 93% Median = 96% Third Quartile = 102% Number of Observations = 132 Water Year = 2010 First Quartile = 93% Median = 96% Third Quartile = 102% Number of Observations = 132 Water Year = 2010 First Quartile = 93% Median = 96% Third Quartile = 102% Number of Observations = 132 Water Year = 2010 First Quartile = 93% Median = 96% Third Quartile = 102% Number of Observations = 132 Water Year = 2010 First Quartile = 93% Median = 96% Third Quartile = 102% Number of Observations = 132 Water Year = 2010 First Quartile = 93% Median = 96% Third Quartile = 102% Number of Observations = 132 Water Year = 2010 First Quartile = 93% Median = 96% Third Quartile = 102% Number of Observations = 132 Water Year = 2010 First Quartile = 93% Median = 96% Third Quartile = 102% Number of Observations = 132 Y = 1
The SGPlot Procedure

Percent Recovery Statistics for Copper, fltd, cICP-MS

Analyte Parm-meth Code Water Year # of
Samples		 25th Pctl 50th Pctl
(Median)		 75th Pctl
Copper, fltd, cICP-MS 01040PLM10 2010 132 92.6% 96.2% 102.0%
    2011 131 93.0% 95.7% 99.9%
    2012 132 94.8% 97.9% 100.7%
    2013 108 94.9% 99.9% 103.7%
    2014 83 92.8% 95.7% 99.5%
    2015 90 91.8% 95.1% 98.3%
    2016 84 96.4% 100.6% 112.5%
    2017 90 105.1% 108.5% 115.0%
    2019 78 97.2% 100.5% 107.0%
    2020 86 94.5% 100.1% 105.3%
    2021 90 94.6% 99.6% 103.2%
    2022 89 99.2% 102.1% 104.3%
    2023 89 100.5% 101.8% 104.4%
    2024 73 101.0% 103.5% 105.9%

Hover over boxplot or outliers for additional information
Chart generated 03/27/2025
Charts and data secured from this U.S. Geological Survey (USGS) web page (identified as IBSP) have not received official USGS approval and as such are provisional and subject to revision. The charts and data are released on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use.


- Copper, unfltd, cICP-MS, recov -
Lab: NWQL, PCode: 01042, MCode: PLM11
Analysis Dates: 10/07/09 through 04/30/15
Open Data Set
Boxplot Description

Water Year = 2015 plotvalue = 116% pctrecov = 116% Water Year = 2015 plotvalue = 70% pctrecov = 61% Water Year = 2015 plotvalue = 70% pctrecov = 57% Water Year = 2014 plotvalue = 111% pctrecov = 111% Water Year = 2014 plotvalue = 111% pctrecov = 111% Water Year = 2014 plotvalue = 114% pctrecov = 114% Water Year = 2014 plotvalue = 130% pctrecov = 132% Water Year = 2014 plotvalue = 70% pctrecov = 67% Water Year = 2013 plotvalue = 111% pctrecov = 111% Water Year = 2013 plotvalue = 113% pctrecov = 113% Water Year = 2013 plotvalue = 120% pctrecov = 120% Water Year = 2013 plotvalue = 130% pctrecov = 203% Water Year = 2013 plotvalue = 130% pctrecov = 236% Water Year = 2013 plotvalue = 130% pctrecov = 162% Water Year = 2013 plotvalue = 130% pctrecov = 151% Water Year = 2013 plotvalue = 82% pctrecov = 82% Water Year = 2013 plotvalue = 81% pctrecov = 81% Water Year = 2013 plotvalue = 79% pctrecov = 79% Water Year = 2013 plotvalue = 71% pctrecov = 71% Water Year = 2012 plotvalue = 107% pctrecov = 107% Water Year = 2012 plotvalue = 108% pctrecov = 108% Water Year = 2012 plotvalue = 109% pctrecov = 109% Water Year = 2012 plotvalue = 122% pctrecov = 122% Water Year = 2012 plotvalue = 88% pctrecov = 88% Water Year = 2012 plotvalue = 84% pctrecov = 84% Water Year = 2012 plotvalue = 83% pctrecov = 83% Water Year = 2011 plotvalue = 111% pctrecov = 111% Water Year = 2011 plotvalue = 117% pctrecov = 117% Water Year = 2011 plotvalue = 73% pctrecov = 73% Water Year = 2011 plotvalue = 70% pctrecov = 67% Water Year = 2010 plotvalue = 111% pctrecov = 111% Water Year = 2010 plotvalue = 112% pctrecov = 112% Water Year = 2010 plotvalue = 112% pctrecov = 112% Water Year = 2010 plotvalue = 114% pctrecov = 114% Water Year = 2010 plotvalue = 114% pctrecov = 114% Water Year = 2010 plotvalue = 114% pctrecov = 114% Water Year = 2010 plotvalue = 117% pctrecov = 117% Water Year = 2010 plotvalue = 130% pctrecov = 135% Water Year = 2010 plotvalue = 130% pctrecov = 164% Water Year = 2010 plotvalue = 130% pctrecov = 202% Water Year = 2010 plotvalue = 130% pctrecov = 135% Water Year = 2010 plotvalue = 130% pctrecov = 187% Water Year = 2010 plotvalue = 130% pctrecov = 165% Water Year = 2010 plotvalue = 73% pctrecov = 73% Water Year = 2015 First Quartile = 87% Median = 92% Third Quartile = 96% Number of Observations = 34 Water Year = 2015 First Quartile = 87% Median = 92% Third Quartile = 96% Number of Observations = 34 Water Year = 2015 First Quartile = 87% Median = 92% Third Quartile = 96% Number of Observations = 34 Water Year = 2015 First Quartile = 87% Median = 92% Third Quartile = 96% Number of Observations = 34 Water Year = 2015 First Quartile = 87% Median = 92% Third Quartile = 96% Number of Observations = 34 Water Year = 2015 First Quartile = 87% Median = 92% Third Quartile = 96% Number of Observations = 34 Water Year = 2015 First Quartile = 87% Median = 92% Third Quartile = 96% Number of Observations = 34 Water Year = 2015 First Quartile = 87% Median = 92% Third Quartile = 96% Number of Observations = 34 Water Year = 2014 First Quartile = 91% Median = 96% Third Quartile = 99% Number of Observations = 83 Water Year = 2014 First Quartile = 91% Median = 96% Third Quartile = 99% Number of Observations = 83 Water Year = 2014 First Quartile = 91% Median = 96% Third Quartile = 99% Number of Observations = 83 Water Year = 2014 First Quartile = 91% Median = 96% Third Quartile = 99% Number of Observations = 83 Water Year = 2014 First Quartile = 91% Median = 96% Third Quartile = 99% Number of Observations = 83 Water Year = 2014 First Quartile = 91% Median = 96% Third Quartile = 99% Number of Observations = 83 Water Year = 2014 First Quartile = 91% Median = 96% Third Quartile = 99% Number of Observations = 83 Water Year = 2014 First Quartile = 91% Median = 96% Third Quartile = 99% Number of Observations = 83 Water Year = 2013 First Quartile = 94% Median = 97% Third Quartile = 101% Number of Observations = 108 Water Year = 2013 First Quartile = 94% Median = 97% Third Quartile = 101% Number of Observations = 108 Water Year = 2013 First Quartile = 94% Median = 97% Third Quartile = 101% Number of Observations = 108 Water Year = 2013 First Quartile = 94% Median = 97% Third Quartile = 101% Number of Observations = 108 Water Year = 2013 First Quartile = 94% Median = 97% Third Quartile = 101% Number of Observations = 108 Water Year = 2013 First Quartile = 94% Median = 97% Third Quartile = 101% Number of Observations = 108 Water Year = 2013 First Quartile = 94% Median = 97% Third Quartile = 101% Number of Observations = 108 Water Year = 2013 First Quartile = 94% Median = 97% Third Quartile = 101% Number of Observations = 108 Water Year = 2012 First Quartile = 96% Median = 98% Third Quartile = 100% Number of Observations = 83 Water Year = 2012 First Quartile = 96% Median = 98% Third Quartile = 100% Number of Observations = 83 Water Year = 2012 First Quartile = 96% Median = 98% Third Quartile = 100% Number of Observations = 83 Water Year = 2012 First Quartile = 96% Median = 98% Third Quartile = 100% Number of Observations = 83 Water Year = 2012 First Quartile = 96% Median = 98% Third Quartile = 100% Number of Observations = 83 Water Year = 2012 First Quartile = 96% Median = 98% Third Quartile = 100% Number of Observations = 83 Water Year = 2012 First Quartile = 96% Median = 98% Third Quartile = 100% Number of Observations = 83 Water Year = 2012 First Quartile = 96% Median = 98% Third Quartile = 100% Number of Observations = 83 Water Year = 2011 First Quartile = 92% Median = 96% Third Quartile = 99% Number of Observations = 130 Water Year = 2011 First Quartile = 92% Median = 96% Third Quartile = 99% Number of Observations = 130 Water Year = 2011 First Quartile = 92% Median = 96% Third Quartile = 99% Number of Observations = 130 Water Year = 2011 First Quartile = 92% Median = 96% Third Quartile = 99% Number of Observations = 130 Water Year = 2011 First Quartile = 92% Median = 96% Third Quartile = 99% Number of Observations = 130 Water Year = 2011 First Quartile = 92% Median = 96% Third Quartile = 99% Number of Observations = 130 Water Year = 2011 First Quartile = 92% Median = 96% Third Quartile = 99% Number of Observations = 130 Water Year = 2011 First Quartile = 92% Median = 96% Third Quartile = 99% Number of Observations = 130 Water Year = 2010 First Quartile = 91% Median = 96% Third Quartile = 99% Number of Observations = 131 Water Year = 2010 First Quartile = 91% Median = 96% Third Quartile = 99% Number of Observations = 131 Water Year = 2010 First Quartile = 91% Median = 96% Third Quartile = 99% Number of Observations = 131 Water Year = 2010 First Quartile = 91% Median = 96% Third Quartile = 99% Number of Observations = 131 Water Year = 2010 First Quartile = 91% Median = 96% Third Quartile = 99% Number of Observations = 131 Water Year = 2010 First Quartile = 91% Median = 96% Third Quartile = 99% Number of Observations = 131 Water Year = 2010 First Quartile = 91% Median = 96% Third Quartile = 99% Number of Observations = 131 Water Year = 2010 First Quartile = 91% Median = 96% Third Quartile = 99% Number of Observations = 131 Water Year = 2009 First Quartile = 98% Median = 99% Third Quartile = 115% Number of Observations = 4 Water Year = 2009 First Quartile = 98% Median = 99% Third Quartile = 115% Number of Observations = 4 Water Year = 2009 First Quartile = 98% Median = 99% Third Quartile = 115% Number of Observations = 4 Water Year = 2009 First Quartile = 98% Median = 99% Third Quartile = 115% Number of Observations = 4 Water Year = 2009 First Quartile = 98% Median = 99% Third Quartile = 115% Number of Observations = 4 Water Year = 2009 First Quartile = 98% Median = 99% Third Quartile = 115% Number of Observations = 4 Water Year = 2009 First Quartile = 98% Median = 99% Third Quartile = 115% Number of Observations = 4 Water Year = 2009 First Quartile = 98% Median = 99% Third Quartile = 115% Number of Observations = 4 Y = 1
The SGPlot Procedure

Percent Recovery Statistics for Copper, unfltd, cICP-MS, recov

Analyte Parm-meth Code Water Year # of
Samples		 25th Pctl 50th Pctl
(Median)		 75th Pctl
Copper, unfltd, cICP-MS, recov 01042PLM11 2009 4 97.6% 98.8% 116.5%
    2010 131 91.1% 96.1% 99.0%
    2011 130 92.1% 96.1% 99.1%
    2012 83 95.7% 98.4% 99.7%
    2013 108 94.1% 97.1% 100.6%
    2014 83 91.0% 96.0% 98.7%
    2015 34 86.5% 91.9% 95.6%

Hover over boxplot or outliers for additional information
Chart generated 03/27/2025
Charts and data secured from this U.S. Geological Survey (USGS) web page (identified as IBSP) have not received official USGS approval and as such are provisional and subject to revision. The charts and data are released on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use.


- Copper, unfltd, cICP-MS, recov -
Lab: NWQL, PCode: 01042, MCode: PLM77
Analysis Dates: 05/12/15 through 09/25/24
Open Data Set
Boxplot Description

Water Year = 2024 plotvalue = 120% pctrecov = 120% Water Year = 2024 plotvalue = 121% pctrecov = 121% Water Year = 2024 plotvalue = 130% pctrecov = 262% Water Year = 2024 plotvalue = 130% pctrecov = 152% Water Year = 2024 plotvalue = 130% pctrecov = 138% Water Year = 2023 plotvalue = 130% pctrecov = 134% Water Year = 2023 plotvalue = 130% pctrecov = 143% Water Year = 2023 plotvalue = 94% pctrecov = 94% Water Year = 2023 plotvalue = 94% pctrecov = 94% Water Year = 2022 plotvalue = 110% pctrecov = 110% Water Year = 2021 plotvalue = 88% pctrecov = 88% Water Year = 2020 plotvalue = 118% pctrecov = 118% Water Year = 2020 plotvalue = 87% pctrecov = 87% Water Year = 2020 plotvalue = 86% pctrecov = 86% Water Year = 2019 plotvalue = 121% pctrecov = 121% Water Year = 2019 plotvalue = 130% pctrecov = 7703% Water Year = 2019 plotvalue = 130% pctrecov = 132% Water Year = 2019 plotvalue = 130% pctrecov = 285% Water Year = 2019 plotvalue = 130% pctrecov = 155% Water Year = 2019 plotvalue = 130% pctrecov = 130% Water Year = 2017 plotvalue = 130% pctrecov = 439% Water Year = 2017 plotvalue = 130% pctrecov = 182% Water Year = 2017 plotvalue = 130% pctrecov = 142% Water Year = 2017 plotvalue = 130% pctrecov = 200% Water Year = 2017 plotvalue = 130% pctrecov = 158% Water Year = 2017 plotvalue = 130% pctrecov = 196% Water Year = 2015 plotvalue = 128% pctrecov = 128% Water Year = 2015 plotvalue = 70% pctrecov = 53% Water Year = 2024 First Quartile = 102% Median = 105% Third Quartile = 108% Number of Observations = 42 Water Year = 2024 First Quartile = 102% Median = 105% Third Quartile = 108% Number of Observations = 42 Water Year = 2024 First Quartile = 102% Median = 105% Third Quartile = 108% Number of Observations = 42 Water Year = 2024 First Quartile = 102% Median = 105% Third Quartile = 108% Number of Observations = 42 Water Year = 2024 First Quartile = 102% Median = 105% Third Quartile = 108% Number of Observations = 42 Water Year = 2024 First Quartile = 102% Median = 105% Third Quartile = 108% Number of Observations = 42 Water Year = 2024 First Quartile = 102% Median = 105% Third Quartile = 108% Number of Observations = 42 Water Year = 2024 First Quartile = 102% Median = 105% Third Quartile = 108% Number of Observations = 42 Water Year = 2023 First Quartile = 102% Median = 104% Third Quartile = 106% Number of Observations = 48 Water Year = 2023 First Quartile = 102% Median = 104% Third Quartile = 106% Number of Observations = 48 Water Year = 2023 First Quartile = 102% Median = 104% Third Quartile = 106% Number of Observations = 48 Water Year = 2023 First Quartile = 102% Median = 104% Third Quartile = 106% Number of Observations = 48 Water Year = 2023 First Quartile = 102% Median = 104% Third Quartile = 106% Number of Observations = 48 Water Year = 2023 First Quartile = 102% Median = 104% Third Quartile = 106% Number of Observations = 48 Water Year = 2023 First Quartile = 102% Median = 104% Third Quartile = 106% Number of Observations = 48 Water Year = 2023 First Quartile = 102% Median = 104% Third Quartile = 106% Number of Observations = 48 Water Year = 2022 First Quartile = 99% Median = 102% Third Quartile = 103% Number of Observations = 47 Water Year = 2022 First Quartile = 99% Median = 102% Third Quartile = 103% Number of Observations = 47 Water Year = 2022 First Quartile = 99% Median = 102% Third Quartile = 103% Number of Observations = 47 Water Year = 2022 First Quartile = 99% Median = 102% Third Quartile = 103% Number of Observations = 47 Water Year = 2022 First Quartile = 99% Median = 102% Third Quartile = 103% Number of Observations = 47 Water Year = 2022 First Quartile = 99% Median = 102% Third Quartile = 103% Number of Observations = 47 Water Year = 2022 First Quartile = 99% Median = 102% Third Quartile = 103% Number of Observations = 47 Water Year = 2022 First Quartile = 99% Median = 102% Third Quartile = 103% Number of Observations = 47 Water Year = 2021 First Quartile = 99% Median = 101% Third Quartile = 104% Number of Observations = 48 Water Year = 2021 First Quartile = 99% Median = 101% Third Quartile = 104% Number of Observations = 48 Water Year = 2021 First Quartile = 99% Median = 101% Third Quartile = 104% Number of Observations = 48 Water Year = 2021 First Quartile = 99% Median = 101% Third Quartile = 104% Number of Observations = 48 Water Year = 2021 First Quartile = 99% Median = 101% Third Quartile = 104% Number of Observations = 48 Water Year = 2021 First Quartile = 99% Median = 101% Third Quartile = 104% Number of Observations = 48 Water Year = 2021 First Quartile = 99% Median = 101% Third Quartile = 104% Number of Observations = 48 Water Year = 2021 First Quartile = 99% Median = 101% Third Quartile = 104% Number of Observations = 48 Water Year = 2020 First Quartile = 98% Median = 100% Third Quartile = 104% Number of Observations = 44 Water Year = 2020 First Quartile = 98% Median = 100% Third Quartile = 104% Number of Observations = 44 Water Year = 2020 First Quartile = 98% Median = 100% Third Quartile = 104% Number of Observations = 44 Water Year = 2020 First Quartile = 98% Median = 100% Third Quartile = 104% Number of Observations = 44 Water Year = 2020 First Quartile = 98% Median = 100% Third Quartile = 104% Number of Observations = 44 Water Year = 2020 First Quartile = 98% Median = 100% Third Quartile = 104% Number of Observations = 44 Water Year = 2020 First Quartile = 98% Median = 100% Third Quartile = 104% Number of Observations = 44 Water Year = 2020 First Quartile = 98% Median = 100% Third Quartile = 104% Number of Observations = 44 Water Year = 2019 First Quartile = 101% Median = 103% Third Quartile = 108% Number of Observations = 55 Water Year = 2019 First Quartile = 101% Median = 103% Third Quartile = 108% Number of Observations = 55 Water Year = 2019 First Quartile = 101% Median = 103% Third Quartile = 108% Number of Observations = 55 Water Year = 2019 First Quartile = 101% Median = 103% Third Quartile = 108% Number of Observations = 55 Water Year = 2019 First Quartile = 101% Median = 103% Third Quartile = 108% Number of Observations = 55 Water Year = 2019 First Quartile = 101% Median = 103% Third Quartile = 108% Number of Observations = 55 Water Year = 2019 First Quartile = 101% Median = 103% Third Quartile = 108% Number of Observations = 55 Water Year = 2019 First Quartile = 101% Median = 103% Third Quartile = 108% Number of Observations = 55 Water Year = 2017 First Quartile = 101% Median = 104% Third Quartile = 112% Number of Observations = 66 Water Year = 2017 First Quartile = 101% Median = 104% Third Quartile = 112% Number of Observations = 66 Water Year = 2017 First Quartile = 101% Median = 104% Third Quartile = 112% Number of Observations = 66 Water Year = 2017 First Quartile = 101% Median = 104% Third Quartile = 112% Number of Observations = 66 Water Year = 2017 First Quartile = 101% Median = 104% Third Quartile = 112% Number of Observations = 66 Water Year = 2017 First Quartile = 101% Median = 104% Third Quartile = 112% Number of Observations = 66 Water Year = 2017 First Quartile = 101% Median = 104% Third Quartile = 112% Number of Observations = 66 Water Year = 2017 First Quartile = 101% Median = 104% Third Quartile = 112% Number of Observations = 66 Water Year = 2016 First Quartile = 98% Median = 103% Third Quartile = 114% Number of Observations = 63 Water Year = 2016 First Quartile = 98% Median = 103% Third Quartile = 114% Number of Observations = 63 Water Year = 2016 First Quartile = 98% Median = 103% Third Quartile = 114% Number of Observations = 63 Water Year = 2016 First Quartile = 98% Median = 103% Third Quartile = 114% Number of Observations = 63 Water Year = 2016 First Quartile = 98% Median = 103% Third Quartile = 114% Number of Observations = 63 Water Year = 2016 First Quartile = 98% Median = 103% Third Quartile = 114% Number of Observations = 63 Water Year = 2016 First Quartile = 98% Median = 103% Third Quartile = 114% Number of Observations = 63 Water Year = 2016 First Quartile = 98% Median = 103% Third Quartile = 114% Number of Observations = 63 Water Year = 2015 First Quartile = 89% Median = 94% Third Quartile = 101% Number of Observations = 32 Water Year = 2015 First Quartile = 89% Median = 94% Third Quartile = 101% Number of Observations = 32 Water Year = 2015 First Quartile = 89% Median = 94% Third Quartile = 101% Number of Observations = 32 Water Year = 2015 First Quartile = 89% Median = 94% Third Quartile = 101% Number of Observations = 32 Water Year = 2015 First Quartile = 89% Median = 94% Third Quartile = 101% Number of Observations = 32 Water Year = 2015 First Quartile = 89% Median = 94% Third Quartile = 101% Number of Observations = 32 Water Year = 2015 First Quartile = 89% Median = 94% Third Quartile = 101% Number of Observations = 32 Water Year = 2015 First Quartile = 89% Median = 94% Third Quartile = 101% Number of Observations = 32 Y = 1
The SGPlot Procedure

Percent Recovery Statistics for Copper, unfltd, cICP-MS, recov

Analyte Parm-meth Code Water Year # of
Samples		 25th Pctl 50th Pctl
(Median)		 75th Pctl
Copper, unfltd, cICP-MS, recov 01042PLM77 2015 32 89.3% 94.4% 101.1%
    2016 63 97.9% 103.4% 113.9%
    2017 66 100.5% 103.8% 112.0%
    2019 55 100.6% 103.4% 108.0%
    2020 44 97.8% 99.8% 104.1%
    2021 48 98.7% 101.4% 104.0%
    2022 47 99.5% 102.2% 103.4%
    2023 48 101.7% 104.3% 106.5%
    2024 42 101.9% 105.0% 108.5%

Hover over boxplot or outliers for additional information
Chart generated 03/27/2025
Charts and data secured from this U.S. Geological Survey (USGS) web page (identified as IBSP) have not received official USGS approval and as such are provisional and subject to revision. The charts and data are released on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use.


- Iron, fltd, ICP-OES -
Lab: NWQL, PCode: 01046, MCode: PLA11
Analysis Dates: 10/14/09 through 09/25/24
Open Data Set
Boxplot Description

Water Year = 2024 plotvalue = 107% pctrecov = 107% Water Year = 2024 plotvalue = 95% pctrecov = 95% Water Year = 2024 plotvalue = 95% pctrecov = 95% Water Year = 2022 plotvalue = 96% pctrecov = 96% Water Year = 2022 plotvalue = 95% pctrecov = 95% Water Year = 2022 plotvalue = 94% pctrecov = 94% Water Year = 2022 plotvalue = 90% pctrecov = 90% Water Year = 2021 plotvalue = 91% pctrecov = 91% Water Year = 2021 plotvalue = 90% pctrecov = 90% Water Year = 2021 plotvalue = 90% pctrecov = 90% Water Year = 2021 plotvalue = 70% pctrecov = 1% Water Year = 2020 plotvalue = 106% pctrecov = 106% Water Year = 2020 plotvalue = 114% pctrecov = 114% Water Year = 2020 plotvalue = 96% pctrecov = 96% Water Year = 2020 plotvalue = 95% pctrecov = 95% Water Year = 2019 plotvalue = 106% pctrecov = 106% Water Year = 2019 plotvalue = 107% pctrecov = 107% Water Year = 2019 plotvalue = 130% pctrecov = 139% Water Year = 2019 plotvalue = 130% pctrecov = 140% Water Year = 2019 plotvalue = 130% pctrecov = 139% Water Year = 2019 plotvalue = 97% pctrecov = 97% Water Year = 2019 plotvalue = 95% pctrecov = 95% Water Year = 2017 plotvalue = 117% pctrecov = 117% Water Year = 2016 plotvalue = 121% pctrecov = 121% Water Year = 2016 plotvalue = 122% pctrecov = 122% Water Year = 2016 plotvalue = 123% pctrecov = 123% Water Year = 2016 plotvalue = 130% pctrecov = 131% Water Year = 2015 plotvalue = 86% pctrecov = 86% Water Year = 2014 plotvalue = 109% pctrecov = 109% Water Year = 2014 plotvalue = 111% pctrecov = 111% Water Year = 2014 plotvalue = 93% pctrecov = 93% Water Year = 2013 plotvalue = 109% pctrecov = 109% Water Year = 2013 plotvalue = 111% pctrecov = 111% Water Year = 2013 plotvalue = 118% pctrecov = 118% Water Year = 2013 plotvalue = 91% pctrecov = 91% Water Year = 2012 plotvalue = 108% pctrecov = 108% Water Year = 2012 plotvalue = 108% pctrecov = 108% Water Year = 2012 plotvalue = 110% pctrecov = 110% Water Year = 2012 plotvalue = 95% pctrecov = 95% Water Year = 2012 plotvalue = 70% pctrecov = 1% Water Year = 2011 plotvalue = 91% pctrecov = 91% Water Year = 2010 plotvalue = 109% pctrecov = 109% Water Year = 2010 plotvalue = 115% pctrecov = 115% Water Year = 2010 plotvalue = 84% pctrecov = 84% Water Year = 2010 plotvalue = 81% pctrecov = 81% Water Year = 2010 plotvalue = 75% pctrecov = 75% Water Year = 2024 First Quartile = 99% Median = 100% Third Quartile = 102% Number of Observations = 93 Water Year = 2024 First Quartile = 99% Median = 100% Third Quartile = 102% Number of Observations = 93 Water Year = 2024 First Quartile = 99% Median = 100% Third Quartile = 102% Number of Observations = 93 Water Year = 2024 First Quartile = 99% Median = 100% Third Quartile = 102% Number of Observations = 93 Water Year = 2024 First Quartile = 99% Median = 100% Third Quartile = 102% Number of Observations = 93 Water Year = 2024 First Quartile = 99% Median = 100% Third Quartile = 102% Number of Observations = 93 Water Year = 2024 First Quartile = 99% Median = 100% Third Quartile = 102% Number of Observations = 93 Water Year = 2024 First Quartile = 99% Median = 100% Third Quartile = 102% Number of Observations = 93 Water Year = 2023 First Quartile = 98% Median = 100% Third Quartile = 102% Number of Observations = 108 Water Year = 2023 First Quartile = 98% Median = 100% Third Quartile = 102% Number of Observations = 108 Water Year = 2023 First Quartile = 98% Median = 100% Third Quartile = 102% Number of Observations = 108 Water Year = 2023 First Quartile = 98% Median = 100% Third Quartile = 102% Number of Observations = 108 Water Year = 2023 First Quartile = 98% Median = 100% Third Quartile = 102% Number of Observations = 108 Water Year = 2023 First Quartile = 98% Median = 100% Third Quartile = 102% Number of Observations = 108 Water Year = 2023 First Quartile = 98% Median = 100% Third Quartile = 102% Number of Observations = 108 Water Year = 2023 First Quartile = 98% Median = 100% Third Quartile = 102% Number of Observations = 108 Water Year = 2022 First Quartile = 100% Median = 101% Third Quartile = 103% Number of Observations = 108 Water Year = 2022 First Quartile = 100% Median = 101% Third Quartile = 103% Number of Observations = 108 Water Year = 2022 First Quartile = 100% Median = 101% Third Quartile = 103% Number of Observations = 108 Water Year = 2022 First Quartile = 100% Median = 101% Third Quartile = 103% Number of Observations = 108 Water Year = 2022 First Quartile = 100% Median = 101% Third Quartile = 103% Number of Observations = 108 Water Year = 2022 First Quartile = 100% Median = 101% Third Quartile = 103% Number of Observations = 108 Water Year = 2022 First Quartile = 100% Median = 101% Third Quartile = 103% Number of Observations = 108 Water Year = 2022 First Quartile = 100% Median = 101% Third Quartile = 103% Number of Observations = 108 Water Year = 2021 First Quartile = 97% Median = 100% Third Quartile = 101% Number of Observations = 107 Water Year = 2021 First Quartile = 97% Median = 100% Third Quartile = 101% Number of Observations = 107 Water Year = 2021 First Quartile = 97% Median = 100% Third Quartile = 101% Number of Observations = 107 Water Year = 2021 First Quartile = 97% Median = 100% Third Quartile = 101% Number of Observations = 107 Water Year = 2021 First Quartile = 97% Median = 100% Third Quartile = 101% Number of Observations = 107 Water Year = 2021 First Quartile = 97% Median = 100% Third Quartile = 101% Number of Observations = 107 Water Year = 2021 First Quartile = 97% Median = 100% Third Quartile = 101% Number of Observations = 107 Water Year = 2021 First Quartile = 97% Median = 100% Third Quartile = 101% Number of Observations = 107 Water Year = 2020 First Quartile = 100% Median = 101% Third Quartile = 102% Number of Observations = 101 Water Year = 2020 First Quartile = 100% Median = 101% Third Quartile = 102% Number of Observations = 101 Water Year = 2020 First Quartile = 100% Median = 101% Third Quartile = 102% Number of Observations = 101 Water Year = 2020 First Quartile = 100% Median = 101% Third Quartile = 102% Number of Observations = 101 Water Year = 2020 First Quartile = 100% Median = 101% Third Quartile = 102% Number of Observations = 101 Water Year = 2020 First Quartile = 100% Median = 101% Third Quartile = 102% Number of Observations = 101 Water Year = 2020 First Quartile = 100% Median = 101% Third Quartile = 102% Number of Observations = 101 Water Year = 2020 First Quartile = 100% Median = 101% Third Quartile = 102% Number of Observations = 101 Water Year = 2019 First Quartile = 100% Median = 101% Third Quartile = 102% Number of Observations = 95 Water Year = 2019 First Quartile = 100% Median = 101% Third Quartile = 102% Number of Observations = 95 Water Year = 2019 First Quartile = 100% Median = 101% Third Quartile = 102% Number of Observations = 95 Water Year = 2019 First Quartile = 100% Median = 101% Third Quartile = 102% Number of Observations = 95 Water Year = 2019 First Quartile = 100% Median = 101% Third Quartile = 102% Number of Observations = 95 Water Year = 2019 First Quartile = 100% Median = 101% Third Quartile = 102% Number of Observations = 95 Water Year = 2019 First Quartile = 100% Median = 101% Third Quartile = 102% Number of Observations = 95 Water Year = 2019 First Quartile = 100% Median = 101% Third Quartile = 102% Number of Observations = 95 Water Year = 2017 First Quartile = 100% Median = 102% Third Quartile = 105% Number of Observations = 108 Water Year = 2017 First Quartile = 100% Median = 102% Third Quartile = 105% Number of Observations = 108 Water Year = 2017 First Quartile = 100% Median = 102% Third Quartile = 105% Number of Observations = 108 Water Year = 2017 First Quartile = 100% Median = 102% Third Quartile = 105% Number of Observations = 108 Water Year = 2017 First Quartile = 100% Median = 102% Third Quartile = 105% Number of Observations = 108 Water Year = 2017 First Quartile = 100% Median = 102% Third Quartile = 105% Number of Observations = 108 Water Year = 2017 First Quartile = 100% Median = 102% Third Quartile = 105% Number of Observations = 108 Water Year = 2017 First Quartile = 100% Median = 102% Third Quartile = 105% Number of Observations = 108 Water Year = 2016 First Quartile = 102% Median = 105% Third Quartile = 107% Number of Observations = 112 Water Year = 2016 First Quartile = 102% Median = 105% Third Quartile = 107% Number of Observations = 112 Water Year = 2016 First Quartile = 102% Median = 105% Third Quartile = 107% Number of Observations = 112 Water Year = 2016 First Quartile = 102% Median = 105% Third Quartile = 107% Number of Observations = 112 Water Year = 2016 First Quartile = 102% Median = 105% Third Quartile = 107% Number of Observations = 112 Water Year = 2016 First Quartile = 102% Median = 105% Third Quartile = 107% Number of Observations = 112 Water Year = 2016 First Quartile = 102% Median = 105% Third Quartile = 107% Number of Observations = 112 Water Year = 2016 First Quartile = 102% Median = 105% Third Quartile = 107% Number of Observations = 112 Water Year = 2015 First Quartile = 101% Median = 103% Third Quartile = 106% Number of Observations = 114 Water Year = 2015 First Quartile = 101% Median = 103% Third Quartile = 106% Number of Observations = 114 Water Year = 2015 First Quartile = 101% Median = 103% Third Quartile = 106% Number of Observations = 114 Water Year = 2015 First Quartile = 101% Median = 103% Third Quartile = 106% Number of Observations = 114 Water Year = 2015 First Quartile = 101% Median = 103% Third Quartile = 106% Number of Observations = 114 Water Year = 2015 First Quartile = 101% Median = 103% Third Quartile = 106% Number of Observations = 114 Water Year = 2015 First Quartile = 101% Median = 103% Third Quartile = 106% Number of Observations = 114 Water Year = 2015 First Quartile = 101% Median = 103% Third Quartile = 106% Number of Observations = 114 Water Year = 2014 First Quartile = 99% Median = 100% Third Quartile = 102% Number of Observations = 107 Water Year = 2014 First Quartile = 99% Median = 100% Third Quartile = 102% Number of Observations = 107 Water Year = 2014 First Quartile = 99% Median = 100% Third Quartile = 102% Number of Observations = 107 Water Year = 2014 First Quartile = 99% Median = 100% Third Quartile = 102% Number of Observations = 107 Water Year = 2014 First Quartile = 99% Median = 100% Third Quartile = 102% Number of Observations = 107 Water Year = 2014 First Quartile = 99% Median = 100% Third Quartile = 102% Number of Observations = 107 Water Year = 2014 First Quartile = 99% Median = 100% Third Quartile = 102% Number of Observations = 107 Water Year = 2014 First Quartile = 99% Median = 100% Third Quartile = 102% Number of Observations = 107 Water Year = 2013 First Quartile = 99% Median = 100% Third Quartile = 103% Number of Observations = 121 Water Year = 2013 First Quartile = 99% Median = 100% Third Quartile = 103% Number of Observations = 121 Water Year = 2013 First Quartile = 99% Median = 100% Third Quartile = 103% Number of Observations = 121 Water Year = 2013 First Quartile = 99% Median = 100% Third Quartile = 103% Number of Observations = 121 Water Year = 2013 First Quartile = 99% Median = 100% Third Quartile = 103% Number of Observations = 121 Water Year = 2013 First Quartile = 99% Median = 100% Third Quartile = 103% Number of Observations = 121 Water Year = 2013 First Quartile = 99% Median = 100% Third Quartile = 103% Number of Observations = 121 Water Year = 2013 First Quartile = 99% Median = 100% Third Quartile = 103% Number of Observations = 121 Water Year = 2012 First Quartile = 101% Median = 102% Third Quartile = 103% Number of Observations = 140 Water Year = 2012 First Quartile = 101% Median = 102% Third Quartile = 103% Number of Observations = 140 Water Year = 2012 First Quartile = 101% Median = 102% Third Quartile = 103% Number of Observations = 140 Water Year = 2012 First Quartile = 101% Median = 102% Third Quartile = 103% Number of Observations = 140 Water Year = 2012 First Quartile = 101% Median = 102% Third Quartile = 103% Number of Observations = 140 Water Year = 2012 First Quartile = 101% Median = 102% Third Quartile = 103% Number of Observations = 140 Water Year = 2012 First Quartile = 101% Median = 102% Third Quartile = 103% Number of Observations = 140 Water Year = 2012 First Quartile = 101% Median = 102% Third Quartile = 103% Number of Observations = 140 Water Year = 2011 First Quartile = 97% Median = 100% Third Quartile = 102% Number of Observations = 143 Water Year = 2011 First Quartile = 97% Median = 100% Third Quartile = 102% Number of Observations = 143 Water Year = 2011 First Quartile = 97% Median = 100% Third Quartile = 102% Number of Observations = 143 Water Year = 2011 First Quartile = 97% Median = 100% Third Quartile = 102% Number of Observations = 143 Water Year = 2011 First Quartile = 97% Median = 100% Third Quartile = 102% Number of Observations = 143 Water Year = 2011 First Quartile = 97% Median = 100% Third Quartile = 102% Number of Observations = 143 Water Year = 2011 First Quartile = 97% Median = 100% Third Quartile = 102% Number of Observations = 143 Water Year = 2011 First Quartile = 97% Median = 100% Third Quartile = 102% Number of Observations = 143 Water Year = 2010 First Quartile = 93% Median = 96% Third Quartile = 99% Number of Observations = 144 Water Year = 2010 First Quartile = 93% Median = 96% Third Quartile = 99% Number of Observations = 144 Water Year = 2010 First Quartile = 93% Median = 96% Third Quartile = 99% Number of Observations = 144 Water Year = 2010 First Quartile = 93% Median = 96% Third Quartile = 99% Number of Observations = 144 Water Year = 2010 First Quartile = 93% Median = 96% Third Quartile = 99% Number of Observations = 144 Water Year = 2010 First Quartile = 93% Median = 96% Third Quartile = 99% Number of Observations = 144 Water Year = 2010 First Quartile = 93% Median = 96% Third Quartile = 99% Number of Observations = 144 Water Year = 2010 First Quartile = 93% Median = 96% Third Quartile = 99% Number of Observations = 144 Y = 1
The SGPlot Procedure

Percent Recovery Statistics for Iron, fltd, ICP-OES

Analyte Parm-meth Code Water Year # of
Samples		 25th Pctl 50th Pctl
(Median)		 75th Pctl
Iron, fltd, ICP-OES 01046PLA11 2010 144 93.1% 96.2% 98.8%
    2011 143 97.4% 99.7% 101.5%
    2012 140 100.6% 101.9% 103.3%
    2013 121 98.6% 100.5% 102.8%
    2014 107 98.7% 100.3% 102.2%
    2015 114 100.7% 102.8% 106.0%
    2016 112 102.2% 104.6% 107.5%
    2017 108 99.9% 101.7% 104.8%
    2019 95 100.1% 101.1% 102.0%
    2020 101 99.9% 100.8% 102.1%
    2021 107 97.1% 100.1% 101.3%
    2022 108 100.1% 101.5% 103.0%
    2023 108 97.9% 100.4% 102.2%
    2024 93 99.2% 100.3% 102.0%

Hover over boxplot or outliers for additional information
Chart generated 03/27/2025
Charts and data secured from this U.S. Geological Survey (USGS) web page (identified as IBSP) have not received official USGS approval and as such are provisional and subject to revision. The charts and data are released on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use.


- Iron, unfltd, ICP-OES, recov -
Lab: NWQL, PCode: 01045, MCode: PLA15
Analysis Dates: 11/12/09 through 03/24/15
Open Data Set
Boxplot Description

Water Year = 2015 plotvalue = 116% pctrecov = 116% Water Year = 2013 plotvalue = 114% pctrecov = 114% Water Year = 2012 plotvalue = 103% pctrecov = 103% Water Year = 2012 plotvalue = 104% pctrecov = 104% Water Year = 2012 plotvalue = 107% pctrecov = 107% Water Year = 2011 plotvalue = 107% pctrecov = 107% Water Year = 2010 plotvalue = 130% pctrecov = 289% Water Year = 2010 plotvalue = 130% pctrecov = 136% Water Year = 2010 plotvalue = 130% pctrecov = 164% Water Year = 2015 First Quartile = 99% Median = 101% Third Quartile = 102% Number of Observations = 39 Water Year = 2015 First Quartile = 99% Median = 101% Third Quartile = 102% Number of Observations = 39 Water Year = 2015 First Quartile = 99% Median = 101% Third Quartile = 102% Number of Observations = 39 Water Year = 2015 First Quartile = 99% Median = 101% Third Quartile = 102% Number of Observations = 39 Water Year = 2015 First Quartile = 99% Median = 101% Third Quartile = 102% Number of Observations = 39 Water Year = 2015 First Quartile = 99% Median = 101% Third Quartile = 102% Number of Observations = 39 Water Year = 2015 First Quartile = 99% Median = 101% Third Quartile = 102% Number of Observations = 39 Water Year = 2015 First Quartile = 99% Median = 101% Third Quartile = 102% Number of Observations = 39 Water Year = 2014 First Quartile = 98% Median = 100% Third Quartile = 102% Number of Observations = 85 Water Year = 2014 First Quartile = 98% Median = 100% Third Quartile = 102% Number of Observations = 85 Water Year = 2014 First Quartile = 98% Median = 100% Third Quartile = 102% Number of Observations = 85 Water Year = 2014 First Quartile = 98% Median = 100% Third Quartile = 102% Number of Observations = 85 Water Year = 2014 First Quartile = 98% Median = 100% Third Quartile = 102% Number of Observations = 85 Water Year = 2014 First Quartile = 98% Median = 100% Third Quartile = 102% Number of Observations = 85 Water Year = 2014 First Quartile = 98% Median = 100% Third Quartile = 102% Number of Observations = 85 Water Year = 2014 First Quartile = 98% Median = 100% Third Quartile = 102% Number of Observations = 85 Water Year = 2013 First Quartile = 96% Median = 98% Third Quartile = 101% Number of Observations = 85 Water Year = 2013 First Quartile = 96% Median = 98% Third Quartile = 101% Number of Observations = 85 Water Year = 2013 First Quartile = 96% Median = 98% Third Quartile = 101% Number of Observations = 85 Water Year = 2013 First Quartile = 96% Median = 98% Third Quartile = 101% Number of Observations = 85 Water Year = 2013 First Quartile = 96% Median = 98% Third Quartile = 101% Number of Observations = 85 Water Year = 2013 First Quartile = 96% Median = 98% Third Quartile = 101% Number of Observations = 85 Water Year = 2013 First Quartile = 96% Median = 98% Third Quartile = 101% Number of Observations = 85 Water Year = 2013 First Quartile = 96% Median = 98% Third Quartile = 101% Number of Observations = 85 Water Year = 2012 First Quartile = 97% Median = 98% Third Quartile = 100% Number of Observations = 110 Water Year = 2012 First Quartile = 97% Median = 98% Third Quartile = 100% Number of Observations = 110 Water Year = 2012 First Quartile = 97% Median = 98% Third Quartile = 100% Number of Observations = 110 Water Year = 2012 First Quartile = 97% Median = 98% Third Quartile = 100% Number of Observations = 110 Water Year = 2012 First Quartile = 97% Median = 98% Third Quartile = 100% Number of Observations = 110 Water Year = 2012 First Quartile = 97% Median = 98% Third Quartile = 100% Number of Observations = 110 Water Year = 2012 First Quartile = 97% Median = 98% Third Quartile = 100% Number of Observations = 110 Water Year = 2012 First Quartile = 97% Median = 98% Third Quartile = 100% Number of Observations = 110 Water Year = 2011 First Quartile = 99% Median = 100% Third Quartile = 102% Number of Observations = 95 Water Year = 2011 First Quartile = 99% Median = 100% Third Quartile = 102% Number of Observations = 95 Water Year = 2011 First Quartile = 99% Median = 100% Third Quartile = 102% Number of Observations = 95 Water Year = 2011 First Quartile = 99% Median = 100% Third Quartile = 102% Number of Observations = 95 Water Year = 2011 First Quartile = 99% Median = 100% Third Quartile = 102% Number of Observations = 95 Water Year = 2011 First Quartile = 99% Median = 100% Third Quartile = 102% Number of Observations = 95 Water Year = 2011 First Quartile = 99% Median = 100% Third Quartile = 102% Number of Observations = 95 Water Year = 2011 First Quartile = 99% Median = 100% Third Quartile = 102% Number of Observations = 95 Water Year = 2010 First Quartile = 98% Median = 100% Third Quartile = 103% Number of Observations = 96 Water Year = 2010 First Quartile = 98% Median = 100% Third Quartile = 103% Number of Observations = 96 Water Year = 2010 First Quartile = 98% Median = 100% Third Quartile = 103% Number of Observations = 96 Water Year = 2010 First Quartile = 98% Median = 100% Third Quartile = 103% Number of Observations = 96 Water Year = 2010 First Quartile = 98% Median = 100% Third Quartile = 103% Number of Observations = 96 Water Year = 2010 First Quartile = 98% Median = 100% Third Quartile = 103% Number of Observations = 96 Water Year = 2010 First Quartile = 98% Median = 100% Third Quartile = 103% Number of Observations = 96 Water Year = 2010 First Quartile = 98% Median = 100% Third Quartile = 103% Number of Observations = 96 Y = 1
The SGPlot Procedure

Percent Recovery Statistics for Iron, unfltd, ICP-OES, recov

Analyte Parm-meth Code Water Year # of
Samples		 25th Pctl 50th Pctl
(Median)		 75th Pctl
Iron, unfltd, ICP-OES, recov 01045PLA15 2010 96 97.7% 100.1% 103.3%
    2011 95 98.9% 100.2% 102.0%
    2012 110 97.1% 98.3% 99.5%
    2013 85 96.3% 97.8% 100.8%
    2014 85 98.1% 99.7% 101.5%
    2015 39 99.5% 101.3% 102.3%

Hover over boxplot or outliers for additional information
Chart generated 03/27/2025
Charts and data secured from this U.S. Geological Survey (USGS) web page (identified as IBSP) have not received official USGS approval and as such are provisional and subject to revision. The charts and data are released on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use.


- Iron, unfltd, ICP-OES, recov -
Lab: NWQL, PCode: 01045, MCode: PLO07
Analysis Dates: 05/28/15 through 09/21/24
Open Data Set
Boxplot Description

Water Year = 2024 plotvalue = 108% pctrecov = 108% Water Year = 2024 plotvalue = 92% pctrecov = 92% Water Year = 2022 plotvalue = 130% pctrecov = 645% Water Year = 2022 plotvalue = 95% pctrecov = 95% Water Year = 2022 plotvalue = 95% pctrecov = 95% Water Year = 2022 plotvalue = 95% pctrecov = 95% Water Year = 2021 plotvalue = 114% pctrecov = 114% Water Year = 2021 plotvalue = 89% pctrecov = 89% Water Year = 2021 plotvalue = 87% pctrecov = 87% Water Year = 2021 plotvalue = 86% pctrecov = 86% Water Year = 2020 plotvalue = 110% pctrecov = 110% Water Year = 2020 plotvalue = 122% pctrecov = 122% Water Year = 2019 plotvalue = 108% pctrecov = 108% Water Year = 2016 plotvalue = 115% pctrecov = 115% Water Year = 2016 plotvalue = 123% pctrecov = 123% Water Year = 2015 plotvalue = 116% pctrecov = 116% Water Year = 2024 First Quartile = 99% Median = 101% Third Quartile = 102% Number of Observations = 37 Water Year = 2024 First Quartile = 99% Median = 101% Third Quartile = 102% Number of Observations = 37 Water Year = 2024 First Quartile = 99% Median = 101% Third Quartile = 102% Number of Observations = 37 Water Year = 2024 First Quartile = 99% Median = 101% Third Quartile = 102% Number of Observations = 37 Water Year = 2024 First Quartile = 99% Median = 101% Third Quartile = 102% Number of Observations = 37 Water Year = 2024 First Quartile = 99% Median = 101% Third Quartile = 102% Number of Observations = 37 Water Year = 2024 First Quartile = 99% Median = 101% Third Quartile = 102% Number of Observations = 37 Water Year = 2024 First Quartile = 99% Median = 101% Third Quartile = 102% Number of Observations = 37 Water Year = 2023 First Quartile = 99% Median = 101% Third Quartile = 102% Number of Observations = 42 Water Year = 2023 First Quartile = 99% Median = 101% Third Quartile = 102% Number of Observations = 42 Water Year = 2023 First Quartile = 99% Median = 101% Third Quartile = 102% Number of Observations = 42 Water Year = 2023 First Quartile = 99% Median = 101% Third Quartile = 102% Number of Observations = 42 Water Year = 2023 First Quartile = 99% Median = 101% Third Quartile = 102% Number of Observations = 42 Water Year = 2023 First Quartile = 99% Median = 101% Third Quartile = 102% Number of Observations = 42 Water Year = 2023 First Quartile = 99% Median = 101% Third Quartile = 102% Number of Observations = 42 Water Year = 2023 First Quartile = 99% Median = 101% Third Quartile = 102% Number of Observations = 42 Water Year = 2022 First Quartile = 100% Median = 102% Third Quartile = 103% Number of Observations = 42 Water Year = 2022 First Quartile = 100% Median = 102% Third Quartile = 103% Number of Observations = 42 Water Year = 2022 First Quartile = 100% Median = 102% Third Quartile = 103% Number of Observations = 42 Water Year = 2022 First Quartile = 100% Median = 102% Third Quartile = 103% Number of Observations = 42 Water Year = 2022 First Quartile = 100% Median = 102% Third Quartile = 103% Number of Observations = 42 Water Year = 2022 First Quartile = 100% Median = 102% Third Quartile = 103% Number of Observations = 42 Water Year = 2022 First Quartile = 100% Median = 102% Third Quartile = 103% Number of Observations = 42 Water Year = 2022 First Quartile = 100% Median = 102% Third Quartile = 103% Number of Observations = 42 Water Year = 2021 First Quartile = 96% Median = 99% Third Quartile = 101% Number of Observations = 42 Water Year = 2021 First Quartile = 96% Median = 99% Third Quartile = 101% Number of Observations = 42 Water Year = 2021 First Quartile = 96% Median = 99% Third Quartile = 101% Number of Observations = 42 Water Year = 2021 First Quartile = 96% Median = 99% Third Quartile = 101% Number of Observations = 42 Water Year = 2021 First Quartile = 96% Median = 99% Third Quartile = 101% Number of Observations = 42 Water Year = 2021 First Quartile = 96% Median = 99% Third Quartile = 101% Number of Observations = 42 Water Year = 2021 First Quartile = 96% Median = 99% Third Quartile = 101% Number of Observations = 42 Water Year = 2021 First Quartile = 96% Median = 99% Third Quartile = 101% Number of Observations = 42 Water Year = 2020 First Quartile = 99% Median = 101% Third Quartile = 102% Number of Observations = 39 Water Year = 2020 First Quartile = 99% Median = 101% Third Quartile = 102% Number of Observations = 39 Water Year = 2020 First Quartile = 99% Median = 101% Third Quartile = 102% Number of Observations = 39 Water Year = 2020 First Quartile = 99% Median = 101% Third Quartile = 102% Number of Observations = 39 Water Year = 2020 First Quartile = 99% Median = 101% Third Quartile = 102% Number of Observations = 39 Water Year = 2020 First Quartile = 99% Median = 101% Third Quartile = 102% Number of Observations = 39 Water Year = 2020 First Quartile = 99% Median = 101% Third Quartile = 102% Number of Observations = 39 Water Year = 2020 First Quartile = 99% Median = 101% Third Quartile = 102% Number of Observations = 39 Water Year = 2019 First Quartile = 100% Median = 101% Third Quartile = 102% Number of Observations = 38 Water Year = 2019 First Quartile = 100% Median = 101% Third Quartile = 102% Number of Observations = 38 Water Year = 2019 First Quartile = 100% Median = 101% Third Quartile = 102% Number of Observations = 38 Water Year = 2019 First Quartile = 100% Median = 101% Third Quartile = 102% Number of Observations = 38 Water Year = 2019 First Quartile = 100% Median = 101% Third Quartile = 102% Number of Observations = 38 Water Year = 2019 First Quartile = 100% Median = 101% Third Quartile = 102% Number of Observations = 38 Water Year = 2019 First Quartile = 100% Median = 101% Third Quartile = 102% Number of Observations = 38 Water Year = 2019 First Quartile = 100% Median = 101% Third Quartile = 102% Number of Observations = 38 Water Year = 2017 First Quartile = 97% Median = 101% Third Quartile = 103% Number of Observations = 42 Water Year = 2017 First Quartile = 97% Median = 101% Third Quartile = 103% Number of Observations = 42 Water Year = 2017 First Quartile = 97% Median = 101% Third Quartile = 103% Number of Observations = 42 Water Year = 2017 First Quartile = 97% Median = 101% Third Quartile = 103% Number of Observations = 42 Water Year = 2017 First Quartile = 97% Median = 101% Third Quartile = 103% Number of Observations = 42 Water Year = 2017 First Quartile = 97% Median = 101% Third Quartile = 103% Number of Observations = 42 Water Year = 2017 First Quartile = 97% Median = 101% Third Quartile = 103% Number of Observations = 42 Water Year = 2017 First Quartile = 97% Median = 101% Third Quartile = 103% Number of Observations = 42 Water Year = 2016 First Quartile = 102% Median = 104% Third Quartile = 107% Number of Observations = 42 Water Year = 2016 First Quartile = 102% Median = 104% Third Quartile = 107% Number of Observations = 42 Water Year = 2016 First Quartile = 102% Median = 104% Third Quartile = 107% Number of Observations = 42 Water Year = 2016 First Quartile = 102% Median = 104% Third Quartile = 107% Number of Observations = 42 Water Year = 2016 First Quartile = 102% Median = 104% Third Quartile = 107% Number of Observations = 42 Water Year = 2016 First Quartile = 102% Median = 104% Third Quartile = 107% Number of Observations = 42 Water Year = 2016 First Quartile = 102% Median = 104% Third Quartile = 107% Number of Observations = 42 Water Year = 2016 First Quartile = 102% Median = 104% Third Quartile = 107% Number of Observations = 42 Water Year = 2015 First Quartile = 102% Median = 103% Third Quartile = 105% Number of Observations = 51 Water Year = 2015 First Quartile = 102% Median = 103% Third Quartile = 105% Number of Observations = 51 Water Year = 2015 First Quartile = 102% Median = 103% Third Quartile = 105% Number of Observations = 51 Water Year = 2015 First Quartile = 102% Median = 103% Third Quartile = 105% Number of Observations = 51 Water Year = 2015 First Quartile = 102% Median = 103% Third Quartile = 105% Number of Observations = 51 Water Year = 2015 First Quartile = 102% Median = 103% Third Quartile = 105% Number of Observations = 51 Water Year = 2015 First Quartile = 102% Median = 103% Third Quartile = 105% Number of Observations = 51 Water Year = 2015 First Quartile = 102% Median = 103% Third Quartile = 105% Number of Observations = 51 Y = 1
The SGPlot Procedure

Percent Recovery Statistics for Iron, unfltd, ICP-OES, recov

Analyte Parm-meth Code Water Year # of
Samples		 25th Pctl 50th Pctl
(Median)		 75th Pctl
Iron, unfltd, ICP-OES, recov 01045PLO07 2015 51 102.1% 103.1% 104.7%
    2016 42 102.0% 104.0% 107.2%
    2017 42 97.0% 100.7% 103.1%
    2019 38 99.9% 101.1% 102.0%
    2020 39 99.1% 100.8% 101.9%
    2021 42 96.5% 99.1% 100.8%
    2022 42 100.2% 101.7% 103.4%
    2023 42 98.6% 100.5% 102.1%
    2024 37 99.0% 100.7% 102.4%

Hover over boxplot or outliers for additional information
Chart generated 03/27/2025
Charts and data secured from this U.S. Geological Survey (USGS) web page (identified as IBSP) have not received official USGS approval and as such are provisional and subject to revision. The charts and data are released on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use.


- Lead, fltd, ICP-MS -
Lab: NWQL, PCode: 01049, MCode: PLM43
Analysis Dates: 10/09/09 through 09/28/24
Open Data Set
Boxplot Description

Water Year = 2024 plotvalue = 105% pctrecov = 105% Water Year = 2024 plotvalue = 107% pctrecov = 107% Water Year = 2024 plotvalue = 111% pctrecov = 111% Water Year = 2024 plotvalue = 89% pctrecov = 89% Water Year = 2023 plotvalue = 106% pctrecov = 106% Water Year = 2023 plotvalue = 108% pctrecov = 108% Water Year = 2023 plotvalue = 86% pctrecov = 86% Water Year = 2023 plotvalue = 82% pctrecov = 82% Water Year = 2020 plotvalue = 108% pctrecov = 108% Water Year = 2020 plotvalue = 108% pctrecov = 108% Water Year = 2020 plotvalue = 108% pctrecov = 108% Water Year = 2020 plotvalue = 108% pctrecov = 108% Water Year = 2020 plotvalue = 109% pctrecov = 109% Water Year = 2020 plotvalue = 109% pctrecov = 109% Water Year = 2020 plotvalue = 94% pctrecov = 94% Water Year = 2020 plotvalue = 86% pctrecov = 86% Water Year = 2019 plotvalue = 70% pctrecov = 2% Water Year = 2017 plotvalue = 85% pctrecov = 85% Water Year = 2016 plotvalue = 107% pctrecov = 107% Water Year = 2016 plotvalue = 87% pctrecov = 87% Water Year = 2016 plotvalue = 87% pctrecov = 87% Water Year = 2016 plotvalue = 70% pctrecov = 16% Water Year = 2016 plotvalue = 70% pctrecov = 15% Water Year = 2016 plotvalue = 70% pctrecov = 1% Water Year = 2015 plotvalue = 70% pctrecov = 20% Water Year = 2015 plotvalue = 70% pctrecov = 14% Water Year = 2014 plotvalue = 107% pctrecov = 107% Water Year = 2014 plotvalue = 109% pctrecov = 109% Water Year = 2014 plotvalue = 70% pctrecov = 1% Water Year = 2014 plotvalue = 70% pctrecov = 14% Water Year = 2014 plotvalue = 70% pctrecov = 2% Water Year = 2013 plotvalue = 89% pctrecov = 89% Water Year = 2013 plotvalue = 87% pctrecov = 87% Water Year = 2013 plotvalue = 70% pctrecov = 2% Water Year = 2012 plotvalue = 120% pctrecov = 120% Water Year = 2012 plotvalue = 93% pctrecov = 93% Water Year = 2012 plotvalue = 91% pctrecov = 91% Water Year = 2012 plotvalue = 87% pctrecov = 87% Water Year = 2012 plotvalue = 70% pctrecov = 0% Water Year = 2012 plotvalue = 70% pctrecov = 1% Water Year = 2012 plotvalue = 70% pctrecov = 0% Water Year = 2011 plotvalue = 107% pctrecov = 107% Water Year = 2011 plotvalue = 108% pctrecov = 108% Water Year = 2011 plotvalue = 108% pctrecov = 108% Water Year = 2011 plotvalue = 109% pctrecov = 109% Water Year = 2011 plotvalue = 109% pctrecov = 109% Water Year = 2011 plotvalue = 110% pctrecov = 110% Water Year = 2011 plotvalue = 110% pctrecov = 110% Water Year = 2011 plotvalue = 111% pctrecov = 111% Water Year = 2011 plotvalue = 70% pctrecov = 20% Water Year = 2011 plotvalue = 70% pctrecov = 0% Water Year = 2010 plotvalue = 89% pctrecov = 89% Water Year = 2024 First Quartile = 96% Median = 97% Third Quartile = 99% Number of Observations = 73 Water Year = 2024 First Quartile = 96% Median = 97% Third Quartile = 99% Number of Observations = 73 Water Year = 2024 First Quartile = 96% Median = 97% Third Quartile = 99% Number of Observations = 73 Water Year = 2024 First Quartile = 96% Median = 97% Third Quartile = 99% Number of Observations = 73 Water Year = 2024 First Quartile = 96% Median = 97% Third Quartile = 99% Number of Observations = 73 Water Year = 2024 First Quartile = 96% Median = 97% Third Quartile = 99% Number of Observations = 73 Water Year = 2024 First Quartile = 96% Median = 97% Third Quartile = 99% Number of Observations = 73 Water Year = 2024 First Quartile = 96% Median = 97% Third Quartile = 99% Number of Observations = 73 Water Year = 2023 First Quartile = 94% Median = 97% Third Quartile = 99% Number of Observations = 89 Water Year = 2023 First Quartile = 94% Median = 97% Third Quartile = 99% Number of Observations = 89 Water Year = 2023 First Quartile = 94% Median = 97% Third Quartile = 99% Number of Observations = 89 Water Year = 2023 First Quartile = 94% Median = 97% Third Quartile = 99% Number of Observations = 89 Water Year = 2023 First Quartile = 94% Median = 97% Third Quartile = 99% Number of Observations = 89 Water Year = 2023 First Quartile = 94% Median = 97% Third Quartile = 99% Number of Observations = 89 Water Year = 2023 First Quartile = 94% Median = 97% Third Quartile = 99% Number of Observations = 89 Water Year = 2023 First Quartile = 94% Median = 97% Third Quartile = 99% Number of Observations = 89 Water Year = 2022 First Quartile = 96% Median = 101% Third Quartile = 104% Number of Observations = 89 Water Year = 2022 First Quartile = 96% Median = 101% Third Quartile = 104% Number of Observations = 89 Water Year = 2022 First Quartile = 96% Median = 101% Third Quartile = 104% Number of Observations = 89 Water Year = 2022 First Quartile = 96% Median = 101% Third Quartile = 104% Number of Observations = 89 Water Year = 2022 First Quartile = 96% Median = 101% Third Quartile = 104% Number of Observations = 89 Water Year = 2022 First Quartile = 96% Median = 101% Third Quartile = 104% Number of Observations = 89 Water Year = 2022 First Quartile = 96% Median = 101% Third Quartile = 104% Number of Observations = 89 Water Year = 2022 First Quartile = 96% Median = 101% Third Quartile = 104% Number of Observations = 89 Water Year = 2021 First Quartile = 98% Median = 100% Third Quartile = 102% Number of Observations = 90 Water Year = 2021 First Quartile = 98% Median = 100% Third Quartile = 102% Number of Observations = 90 Water Year = 2021 First Quartile = 98% Median = 100% Third Quartile = 102% Number of Observations = 90 Water Year = 2021 First Quartile = 98% Median = 100% Third Quartile = 102% Number of Observations = 90 Water Year = 2021 First Quartile = 98% Median = 100% Third Quartile = 102% Number of Observations = 90 Water Year = 2021 First Quartile = 98% Median = 100% Third Quartile = 102% Number of Observations = 90 Water Year = 2021 First Quartile = 98% Median = 100% Third Quartile = 102% Number of Observations = 90 Water Year = 2021 First Quartile = 98% Median = 100% Third Quartile = 102% Number of Observations = 90 Water Year = 2020 First Quartile = 99% Median = 100% Third Quartile = 102% Number of Observations = 86 Water Year = 2020 First Quartile = 99% Median = 100% Third Quartile = 102% Number of Observations = 86 Water Year = 2020 First Quartile = 99% Median = 100% Third Quartile = 102% Number of Observations = 86 Water Year = 2020 First Quartile = 99% Median = 100% Third Quartile = 102% Number of Observations = 86 Water Year = 2020 First Quartile = 99% Median = 100% Third Quartile = 102% Number of Observations = 86 Water Year = 2020 First Quartile = 99% Median = 100% Third Quartile = 102% Number of Observations = 86 Water Year = 2020 First Quartile = 99% Median = 100% Third Quartile = 102% Number of Observations = 86 Water Year = 2020 First Quartile = 99% Median = 100% Third Quartile = 102% Number of Observations = 86 Water Year = 2019 First Quartile = 91% Median = 96% Third Quartile = 100% Number of Observations = 78 Water Year = 2019 First Quartile = 91% Median = 96% Third Quartile = 100% Number of Observations = 78 Water Year = 2019 First Quartile = 91% Median = 96% Third Quartile = 100% Number of Observations = 78 Water Year = 2019 First Quartile = 91% Median = 96% Third Quartile = 100% Number of Observations = 78 Water Year = 2019 First Quartile = 91% Median = 96% Third Quartile = 100% Number of Observations = 78 Water Year = 2019 First Quartile = 91% Median = 96% Third Quartile = 100% Number of Observations = 78 Water Year = 2019 First Quartile = 91% Median = 96% Third Quartile = 100% Number of Observations = 78 Water Year = 2019 First Quartile = 91% Median = 96% Third Quartile = 100% Number of Observations = 78 Water Year = 2017 First Quartile = 95% Median = 99% Third Quartile = 102% Number of Observations = 90 Water Year = 2017 First Quartile = 95% Median = 99% Third Quartile = 102% Number of Observations = 90 Water Year = 2017 First Quartile = 95% Median = 99% Third Quartile = 102% Number of Observations = 90 Water Year = 2017 First Quartile = 95% Median = 99% Third Quartile = 102% Number of Observations = 90 Water Year = 2017 First Quartile = 95% Median = 99% Third Quartile = 102% Number of Observations = 90 Water Year = 2017 First Quartile = 95% Median = 99% Third Quartile = 102% Number of Observations = 90 Water Year = 2017 First Quartile = 95% Median = 99% Third Quartile = 102% Number of Observations = 90 Water Year = 2017 First Quartile = 95% Median = 99% Third Quartile = 102% Number of Observations = 90 Water Year = 2016 First Quartile = 95% Median = 97% Third Quartile = 100% Number of Observations = 90 Water Year = 2016 First Quartile = 95% Median = 97% Third Quartile = 100% Number of Observations = 90 Water Year = 2016 First Quartile = 95% Median = 97% Third Quartile = 100% Number of Observations = 90 Water Year = 2016 First Quartile = 95% Median = 97% Third Quartile = 100% Number of Observations = 90 Water Year = 2016 First Quartile = 95% Median = 97% Third Quartile = 100% Number of Observations = 90 Water Year = 2016 First Quartile = 95% Median = 97% Third Quartile = 100% Number of Observations = 90 Water Year = 2016 First Quartile = 95% Median = 97% Third Quartile = 100% Number of Observations = 90 Water Year = 2016 First Quartile = 95% Median = 97% Third Quartile = 100% Number of Observations = 90 Water Year = 2015 First Quartile = 97% Median = 99% Third Quartile = 103% Number of Observations = 90 Water Year = 2015 First Quartile = 97% Median = 99% Third Quartile = 103% Number of Observations = 90 Water Year = 2015 First Quartile = 97% Median = 99% Third Quartile = 103% Number of Observations = 90 Water Year = 2015 First Quartile = 97% Median = 99% Third Quartile = 103% Number of Observations = 90 Water Year = 2015 First Quartile = 97% Median = 99% Third Quartile = 103% Number of Observations = 90 Water Year = 2015 First Quartile = 97% Median = 99% Third Quartile = 103% Number of Observations = 90 Water Year = 2015 First Quartile = 97% Median = 99% Third Quartile = 103% Number of Observations = 90 Water Year = 2015 First Quartile = 97% Median = 99% Third Quartile = 103% Number of Observations = 90 Water Year = 2014 First Quartile = 93% Median = 95% Third Quartile = 98% Number of Observations = 83 Water Year = 2014 First Quartile = 93% Median = 95% Third Quartile = 98% Number of Observations = 83 Water Year = 2014 First Quartile = 93% Median = 95% Third Quartile = 98% Number of Observations = 83 Water Year = 2014 First Quartile = 93% Median = 95% Third Quartile = 98% Number of Observations = 83 Water Year = 2014 First Quartile = 93% Median = 95% Third Quartile = 98% Number of Observations = 83 Water Year = 2014 First Quartile = 93% Median = 95% Third Quartile = 98% Number of Observations = 83 Water Year = 2014 First Quartile = 93% Median = 95% Third Quartile = 98% Number of Observations = 83 Water Year = 2014 First Quartile = 93% Median = 95% Third Quartile = 98% Number of Observations = 83 Water Year = 2013 First Quartile = 100% Median = 104% Third Quartile = 107% Number of Observations = 108 Water Year = 2013 First Quartile = 100% Median = 104% Third Quartile = 107% Number of Observations = 108 Water Year = 2013 First Quartile = 100% Median = 104% Third Quartile = 107% Number of Observations = 108 Water Year = 2013 First Quartile = 100% Median = 104% Third Quartile = 107% Number of Observations = 108 Water Year = 2013 First Quartile = 100% Median = 104% Third Quartile = 107% Number of Observations = 108 Water Year = 2013 First Quartile = 100% Median = 104% Third Quartile = 107% Number of Observations = 108 Water Year = 2013 First Quartile = 100% Median = 104% Third Quartile = 107% Number of Observations = 108 Water Year = 2013 First Quartile = 100% Median = 104% Third Quartile = 107% Number of Observations = 108 Water Year = 2012 First Quartile = 102% Median = 105% Third Quartile = 107% Number of Observations = 132 Water Year = 2012 First Quartile = 102% Median = 105% Third Quartile = 107% Number of Observations = 132 Water Year = 2012 First Quartile = 102% Median = 105% Third Quartile = 107% Number of Observations = 132 Water Year = 2012 First Quartile = 102% Median = 105% Third Quartile = 107% Number of Observations = 132 Water Year = 2012 First Quartile = 102% Median = 105% Third Quartile = 107% Number of Observations = 132 Water Year = 2012 First Quartile = 102% Median = 105% Third Quartile = 107% Number of Observations = 132 Water Year = 2012 First Quartile = 102% Median = 105% Third Quartile = 107% Number of Observations = 132 Water Year = 2012 First Quartile = 102% Median = 105% Third Quartile = 107% Number of Observations = 132 Water Year = 2011 First Quartile = 95% Median = 98% Third Quartile = 100% Number of Observations = 131 Water Year = 2011 First Quartile = 95% Median = 98% Third Quartile = 100% Number of Observations = 131 Water Year = 2011 First Quartile = 95% Median = 98% Third Quartile = 100% Number of Observations = 131 Water Year = 2011 First Quartile = 95% Median = 98% Third Quartile = 100% Number of Observations = 131 Water Year = 2011 First Quartile = 95% Median = 98% Third Quartile = 100% Number of Observations = 131 Water Year = 2011 First Quartile = 95% Median = 98% Third Quartile = 100% Number of Observations = 131 Water Year = 2011 First Quartile = 95% Median = 98% Third Quartile = 100% Number of Observations = 131 Water Year = 2011 First Quartile = 95% Median = 98% Third Quartile = 100% Number of Observations = 131 Water Year = 2010 First Quartile = 100% Median = 103% Third Quartile = 106% Number of Observations = 132 Water Year = 2010 First Quartile = 100% Median = 103% Third Quartile = 106% Number of Observations = 132 Water Year = 2010 First Quartile = 100% Median = 103% Third Quartile = 106% Number of Observations = 132 Water Year = 2010 First Quartile = 100% Median = 103% Third Quartile = 106% Number of Observations = 132 Water Year = 2010 First Quartile = 100% Median = 103% Third Quartile = 106% Number of Observations = 132 Water Year = 2010 First Quartile = 100% Median = 103% Third Quartile = 106% Number of Observations = 132 Water Year = 2010 First Quartile = 100% Median = 103% Third Quartile = 106% Number of Observations = 132 Water Year = 2010 First Quartile = 100% Median = 103% Third Quartile = 106% Number of Observations = 132 Y = 1
The SGPlot Procedure

Percent Recovery Statistics for Lead, fltd, ICP-MS

Analyte Parm-meth Code Water Year # of
Samples		 25th Pctl 50th Pctl
(Median)		 75th Pctl
Lead, fltd, ICP-MS 01049PLM43 2010 132 100.1% 102.7% 105.6%
    2011 131 95.2% 97.7% 100.1%
    2012 132 101.6% 105.2% 106.8%
    2013 108 100.0% 103.9% 106.8%
    2014 83 93.0% 95.1% 98.1%
    2015 90 96.5% 99.1% 103.0%
    2016 90 95.2% 97.4% 99.6%
    2017 90 95.5% 99.1% 102.2%
    2019 78 90.8% 95.6% 100.0%
    2020 86 98.6% 100.5% 101.7%
    2021 90 97.6% 99.7% 102.0%
    2022 89 96.2% 101.3% 104.2%
    2023 89 94.0% 96.6% 98.9%
    2024 73 96.0% 97.3% 99.3%

Hover over boxplot or outliers for additional information
Chart generated 03/27/2025
Charts and data secured from this U.S. Geological Survey (USGS) web page (identified as IBSP) have not received official USGS approval and as such are provisional and subject to revision. The charts and data are released on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use.


- Lead, unfltd, ICP-MS, recov -
Lab: NWQL, PCode: 01051, MCode: PLM48
Analysis Dates: 10/05/09 through 04/30/15
Open Data Set
Boxplot Description

Water Year = 2015 plotvalue = 105% pctrecov = 105% Water Year = 2015 plotvalue = 105% pctrecov = 105% Water Year = 2015 plotvalue = 105% pctrecov = 105% Water Year = 2015 plotvalue = 130% pctrecov = 778% Water Year = 2013 plotvalue = 106% pctrecov = 106% Water Year = 2013 plotvalue = 106% pctrecov = 106% Water Year = 2013 plotvalue = 107% pctrecov = 107% Water Year = 2013 plotvalue = 107% pctrecov = 107% Water Year = 2013 plotvalue = 92% pctrecov = 92% Water Year = 2012 plotvalue = 92% pctrecov = 92% Water Year = 2011 plotvalue = 115% pctrecov = 115% Water Year = 2011 plotvalue = 117% pctrecov = 117% Water Year = 2011 plotvalue = 121% pctrecov = 121% Water Year = 2011 plotvalue = 123% pctrecov = 123% Water Year = 2010 plotvalue = 126% pctrecov = 126% Water Year = 2010 plotvalue = 130% pctrecov = 144% Water Year = 2010 plotvalue = 130% pctrecov = 328% Water Year = 2010 plotvalue = 130% pctrecov = 132% Water Year = 2010 plotvalue = 130% pctrecov = 130% Water Year = 2009 plotvalue = 121% pctrecov = 121% Water Year = 2009 plotvalue = 123% pctrecov = 123% Water Year = 2009 plotvalue = 84% pctrecov = 84% Water Year = 2015 First Quartile = 98% Median = 99% Third Quartile = 101% Number of Observations = 48 Water Year = 2015 First Quartile = 98% Median = 99% Third Quartile = 101% Number of Observations = 48 Water Year = 2015 First Quartile = 98% Median = 99% Third Quartile = 101% Number of Observations = 48 Water Year = 2015 First Quartile = 98% Median = 99% Third Quartile = 101% Number of Observations = 48 Water Year = 2015 First Quartile = 98% Median = 99% Third Quartile = 101% Number of Observations = 48 Water Year = 2015 First Quartile = 98% Median = 99% Third Quartile = 101% Number of Observations = 48 Water Year = 2015 First Quartile = 98% Median = 99% Third Quartile = 101% Number of Observations = 48 Water Year = 2015 First Quartile = 98% Median = 99% Third Quartile = 101% Number of Observations = 48 Water Year = 2014 First Quartile = 96% Median = 98% Third Quartile = 100% Number of Observations = 83 Water Year = 2014 First Quartile = 96% Median = 98% Third Quartile = 100% Number of Observations = 83 Water Year = 2014 First Quartile = 96% Median = 98% Third Quartile = 100% Number of Observations = 83 Water Year = 2014 First Quartile = 96% Median = 98% Third Quartile = 100% Number of Observations = 83 Water Year = 2014 First Quartile = 96% Median = 98% Third Quartile = 100% Number of Observations = 83 Water Year = 2014 First Quartile = 96% Median = 98% Third Quartile = 100% Number of Observations = 83 Water Year = 2014 First Quartile = 96% Median = 98% Third Quartile = 100% Number of Observations = 83 Water Year = 2014 First Quartile = 96% Median = 98% Third Quartile = 100% Number of Observations = 83 Water Year = 2013 First Quartile = 97% Median = 99% Third Quartile = 100% Number of Observations = 108 Water Year = 2013 First Quartile = 97% Median = 99% Third Quartile = 100% Number of Observations = 108 Water Year = 2013 First Quartile = 97% Median = 99% Third Quartile = 100% Number of Observations = 108 Water Year = 2013 First Quartile = 97% Median = 99% Third Quartile = 100% Number of Observations = 108 Water Year = 2013 First Quartile = 97% Median = 99% Third Quartile = 100% Number of Observations = 108 Water Year = 2013 First Quartile = 97% Median = 99% Third Quartile = 100% Number of Observations = 108 Water Year = 2013 First Quartile = 97% Median = 99% Third Quartile = 100% Number of Observations = 108 Water Year = 2013 First Quartile = 97% Median = 99% Third Quartile = 100% Number of Observations = 108 Water Year = 2012 First Quartile = 98% Median = 100% Third Quartile = 102% Number of Observations = 83 Water Year = 2012 First Quartile = 98% Median = 100% Third Quartile = 102% Number of Observations = 83 Water Year = 2012 First Quartile = 98% Median = 100% Third Quartile = 102% Number of Observations = 83 Water Year = 2012 First Quartile = 98% Median = 100% Third Quartile = 102% Number of Observations = 83 Water Year = 2012 First Quartile = 98% Median = 100% Third Quartile = 102% Number of Observations = 83 Water Year = 2012 First Quartile = 98% Median = 100% Third Quartile = 102% Number of Observations = 83 Water Year = 2012 First Quartile = 98% Median = 100% Third Quartile = 102% Number of Observations = 83 Water Year = 2012 First Quartile = 98% Median = 100% Third Quartile = 102% Number of Observations = 83 Water Year = 2011 First Quartile = 99% Median = 101% Third Quartile = 105% Number of Observations = 130 Water Year = 2011 First Quartile = 99% Median = 101% Third Quartile = 105% Number of Observations = 130 Water Year = 2011 First Quartile = 99% Median = 101% Third Quartile = 105% Number of Observations = 130 Water Year = 2011 First Quartile = 99% Median = 101% Third Quartile = 105% Number of Observations = 130 Water Year = 2011 First Quartile = 99% Median = 101% Third Quartile = 105% Number of Observations = 130 Water Year = 2011 First Quartile = 99% Median = 101% Third Quartile = 105% Number of Observations = 130 Water Year = 2011 First Quartile = 99% Median = 101% Third Quartile = 105% Number of Observations = 130 Water Year = 2011 First Quartile = 99% Median = 101% Third Quartile = 105% Number of Observations = 130 Water Year = 2010 First Quartile = 100% Median = 103% Third Quartile = 107% Number of Observations = 131 Water Year = 2010 First Quartile = 100% Median = 103% Third Quartile = 107% Number of Observations = 131 Water Year = 2010 First Quartile = 100% Median = 103% Third Quartile = 107% Number of Observations = 131 Water Year = 2010 First Quartile = 100% Median = 103% Third Quartile = 107% Number of Observations = 131 Water Year = 2010 First Quartile = 100% Median = 103% Third Quartile = 107% Number of Observations = 131 Water Year = 2010 First Quartile = 100% Median = 103% Third Quartile = 107% Number of Observations = 131 Water Year = 2010 First Quartile = 100% Median = 103% Third Quartile = 107% Number of Observations = 131 Water Year = 2010 First Quartile = 100% Median = 103% Third Quartile = 107% Number of Observations = 131 Water Year = 2009 First Quartile = 102% Median = 107% Third Quartile = 109% Number of Observations = 9 Water Year = 2009 First Quartile = 102% Median = 107% Third Quartile = 109% Number of Observations = 9 Water Year = 2009 First Quartile = 102% Median = 107% Third Quartile = 109% Number of Observations = 9 Water Year = 2009 First Quartile = 102% Median = 107% Third Quartile = 109% Number of Observations = 9 Water Year = 2009 First Quartile = 102% Median = 107% Third Quartile = 109% Number of Observations = 9 Water Year = 2009 First Quartile = 102% Median = 107% Third Quartile = 109% Number of Observations = 9 Water Year = 2009 First Quartile = 102% Median = 107% Third Quartile = 109% Number of Observations = 9 Water Year = 2009 First Quartile = 102% Median = 107% Third Quartile = 109% Number of Observations = 9 Y = 1
The SGPlot Procedure

Percent Recovery Statistics for Lead, unfltd, ICP-MS, recov

Analyte Parm-meth Code Water Year # of
Samples		 25th Pctl 50th Pctl
(Median)		 75th Pctl
Lead, unfltd, ICP-MS, recov 01051PLM48 2009 9 102.3% 106.8% 108.5%
    2010 131 100.0% 102.9% 106.9%
    2011 130 98.7% 100.6% 104.5%
    2012 83 98.3% 100.4% 102.1%
    2013 108 96.8% 98.6% 100.2%
    2014 83 96.4% 98.0% 99.6%
    2015 48 97.9% 99.3% 100.6%

Hover over boxplot or outliers for additional information
Chart generated 03/27/2025
Charts and data secured from this U.S. Geological Survey (USGS) web page (identified as IBSP) have not received official USGS approval and as such are provisional and subject to revision. The charts and data are released on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use.


- Lead, unfltd, ICP-MS, recov -
Lab: NWQL, PCode: 01051, MCode: PLM78
Analysis Dates: 05/12/15 through 09/25/24
Open Data Set
Boxplot Description

Water Year = 2024 plotvalue = 108% pctrecov = 108% Water Year = 2024 plotvalue = 114% pctrecov = 114% Water Year = 2024 plotvalue = 92% pctrecov = 92% Water Year = 2023 plotvalue = 104% pctrecov = 104% Water Year = 2023 plotvalue = 104% pctrecov = 104% Water Year = 2023 plotvalue = 106% pctrecov = 106% Water Year = 2023 plotvalue = 88% pctrecov = 88% Water Year = 2023 plotvalue = 88% pctrecov = 88% Water Year = 2021 plotvalue = 108% pctrecov = 108% Water Year = 2021 plotvalue = 92% pctrecov = 92% Water Year = 2020 plotvalue = 108% pctrecov = 108% Water Year = 2019 plotvalue = 110% pctrecov = 110% Water Year = 2019 plotvalue = 111% pctrecov = 111% Water Year = 2019 plotvalue = 113% pctrecov = 113% Water Year = 2019 plotvalue = 118% pctrecov = 118% Water Year = 2019 plotvalue = 91% pctrecov = 91% Water Year = 2017 plotvalue = 109% pctrecov = 109% Water Year = 2017 plotvalue = 112% pctrecov = 112% Water Year = 2016 plotvalue = 111% pctrecov = 111% Water Year = 2016 plotvalue = 111% pctrecov = 111% Water Year = 2016 plotvalue = 116% pctrecov = 116% Water Year = 2016 plotvalue = 130% pctrecov = 186% Water Year = 2016 plotvalue = 90% pctrecov = 90% Water Year = 2015 plotvalue = 110% pctrecov = 110% Water Year = 2015 plotvalue = 90% pctrecov = 90% Water Year = 2015 plotvalue = 90% pctrecov = 90% Water Year = 2015 plotvalue = 84% pctrecov = 84% Water Year = 2024 First Quartile = 98% Median = 100% Third Quartile = 102% Number of Observations = 42 Water Year = 2024 First Quartile = 98% Median = 100% Third Quartile = 102% Number of Observations = 42 Water Year = 2024 First Quartile = 98% Median = 100% Third Quartile = 102% Number of Observations = 42 Water Year = 2024 First Quartile = 98% Median = 100% Third Quartile = 102% Number of Observations = 42 Water Year = 2024 First Quartile = 98% Median = 100% Third Quartile = 102% Number of Observations = 42 Water Year = 2024 First Quartile = 98% Median = 100% Third Quartile = 102% Number of Observations = 42 Water Year = 2024 First Quartile = 98% Median = 100% Third Quartile = 102% Number of Observations = 42 Water Year = 2024 First Quartile = 98% Median = 100% Third Quartile = 102% Number of Observations = 42 Water Year = 2023 First Quartile = 95% Median = 97% Third Quartile = 98% Number of Observations = 48 Water Year = 2023 First Quartile = 95% Median = 97% Third Quartile = 98% Number of Observations = 48 Water Year = 2023 First Quartile = 95% Median = 97% Third Quartile = 98% Number of Observations = 48 Water Year = 2023 First Quartile = 95% Median = 97% Third Quartile = 98% Number of Observations = 48 Water Year = 2023 First Quartile = 95% Median = 97% Third Quartile = 98% Number of Observations = 48 Water Year = 2023 First Quartile = 95% Median = 97% Third Quartile = 98% Number of Observations = 48 Water Year = 2023 First Quartile = 95% Median = 97% Third Quartile = 98% Number of Observations = 48 Water Year = 2023 First Quartile = 95% Median = 97% Third Quartile = 98% Number of Observations = 48 Water Year = 2022 First Quartile = 95% Median = 97% Third Quartile = 100% Number of Observations = 47 Water Year = 2022 First Quartile = 95% Median = 97% Third Quartile = 100% Number of Observations = 47 Water Year = 2022 First Quartile = 95% Median = 97% Third Quartile = 100% Number of Observations = 47 Water Year = 2022 First Quartile = 95% Median = 97% Third Quartile = 100% Number of Observations = 47 Water Year = 2022 First Quartile = 95% Median = 97% Third Quartile = 100% Number of Observations = 47 Water Year = 2022 First Quartile = 95% Median = 97% Third Quartile = 100% Number of Observations = 47 Water Year = 2022 First Quartile = 95% Median = 97% Third Quartile = 100% Number of Observations = 47 Water Year = 2022 First Quartile = 95% Median = 97% Third Quartile = 100% Number of Observations = 47 Water Year = 2021 First Quartile = 98% Median = 99% Third Quartile = 102% Number of Observations = 48 Water Year = 2021 First Quartile = 98% Median = 99% Third Quartile = 102% Number of Observations = 48 Water Year = 2021 First Quartile = 98% Median = 99% Third Quartile = 102% Number of Observations = 48 Water Year = 2021 First Quartile = 98% Median = 99% Third Quartile = 102% Number of Observations = 48 Water Year = 2021 First Quartile = 98% Median = 99% Third Quartile = 102% Number of Observations = 48 Water Year = 2021 First Quartile = 98% Median = 99% Third Quartile = 102% Number of Observations = 48 Water Year = 2021 First Quartile = 98% Median = 99% Third Quartile = 102% Number of Observations = 48 Water Year = 2021 First Quartile = 98% Median = 99% Third Quartile = 102% Number of Observations = 48 Water Year = 2020 First Quartile = 98% Median = 100% Third Quartile = 102% Number of Observations = 44 Water Year = 2020 First Quartile = 98% Median = 100% Third Quartile = 102% Number of Observations = 44 Water Year = 2020 First Quartile = 98% Median = 100% Third Quartile = 102% Number of Observations = 44 Water Year = 2020 First Quartile = 98% Median = 100% Third Quartile = 102% Number of Observations = 44 Water Year = 2020 First Quartile = 98% Median = 100% Third Quartile = 102% Number of Observations = 44 Water Year = 2020 First Quartile = 98% Median = 100% Third Quartile = 102% Number of Observations = 44 Water Year = 2020 First Quartile = 98% Median = 100% Third Quartile = 102% Number of Observations = 44 Water Year = 2020 First Quartile = 98% Median = 100% Third Quartile = 102% Number of Observations = 44 Water Year = 2019 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 55 Water Year = 2019 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 55 Water Year = 2019 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 55 Water Year = 2019 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 55 Water Year = 2019 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 55 Water Year = 2019 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 55 Water Year = 2019 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 55 Water Year = 2019 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 55 Water Year = 2017 First Quartile = 94% Median = 97% Third Quartile = 100% Number of Observations = 90 Water Year = 2017 First Quartile = 94% Median = 97% Third Quartile = 100% Number of Observations = 90 Water Year = 2017 First Quartile = 94% Median = 97% Third Quartile = 100% Number of Observations = 90 Water Year = 2017 First Quartile = 94% Median = 97% Third Quartile = 100% Number of Observations = 90 Water Year = 2017 First Quartile = 94% Median = 97% Third Quartile = 100% Number of Observations = 90 Water Year = 2017 First Quartile = 94% Median = 97% Third Quartile = 100% Number of Observations = 90 Water Year = 2017 First Quartile = 94% Median = 97% Third Quartile = 100% Number of Observations = 90 Water Year = 2017 First Quartile = 94% Median = 97% Third Quartile = 100% Number of Observations = 90 Water Year = 2016 First Quartile = 98% Median = 100% Third Quartile = 102% Number of Observations = 90 Water Year = 2016 First Quartile = 98% Median = 100% Third Quartile = 102% Number of Observations = 90 Water Year = 2016 First Quartile = 98% Median = 100% Third Quartile = 102% Number of Observations = 90 Water Year = 2016 First Quartile = 98% Median = 100% Third Quartile = 102% Number of Observations = 90 Water Year = 2016 First Quartile = 98% Median = 100% Third Quartile = 102% Number of Observations = 90 Water Year = 2016 First Quartile = 98% Median = 100% Third Quartile = 102% Number of Observations = 90 Water Year = 2016 First Quartile = 98% Median = 100% Third Quartile = 102% Number of Observations = 90 Water Year = 2016 First Quartile = 98% Median = 100% Third Quartile = 102% Number of Observations = 90 Water Year = 2015 First Quartile = 99% Median = 101% Third Quartile = 104% Number of Observations = 42 Water Year = 2015 First Quartile = 99% Median = 101% Third Quartile = 104% Number of Observations = 42 Water Year = 2015 First Quartile = 99% Median = 101% Third Quartile = 104% Number of Observations = 42 Water Year = 2015 First Quartile = 99% Median = 101% Third Quartile = 104% Number of Observations = 42 Water Year = 2015 First Quartile = 99% Median = 101% Third Quartile = 104% Number of Observations = 42 Water Year = 2015 First Quartile = 99% Median = 101% Third Quartile = 104% Number of Observations = 42 Water Year = 2015 First Quartile = 99% Median = 101% Third Quartile = 104% Number of Observations = 42 Water Year = 2015 First Quartile = 99% Median = 101% Third Quartile = 104% Number of Observations = 42 Y = 1
The SGPlot Procedure

Percent Recovery Statistics for Lead, unfltd, ICP-MS, recov

Analyte Parm-meth Code Water Year # of
Samples		 25th Pctl 50th Pctl
(Median)		 75th Pctl
Lead, unfltd, ICP-MS, recov 01051PLM78 2015 42 99.3% 101.0% 103.5%
    2016 90 98.0% 99.8% 101.7%
    2017 90 94.3% 97.0% 99.7%
    2019 55 98.7% 100.6% 102.5%
    2020 44 98.0% 99.6% 101.8%
    2021 48 97.7% 99.0% 101.6%
    2022 47 94.9% 97.0% 99.8%
    2023 48 94.9% 96.6% 98.4%
    2024 42 98.3% 100.4% 102.0%

Hover over boxplot or outliers for additional information
Chart generated 03/27/2025
Charts and data secured from this U.S. Geological Survey (USGS) web page (identified as IBSP) have not received official USGS approval and as such are provisional and subject to revision. The charts and data are released on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use.


- Lithium, fltd, ICP-MS -
Lab: NWQL, PCode: 01130, MCode: PLM40
Analysis Dates: 10/09/09 through 09/28/24
Open Data Set
Boxplot Description

Water Year = 2024 plotvalue = 122% pctrecov = 122% Water Year = 2024 plotvalue = 123% pctrecov = 123% Water Year = 2024 plotvalue = 130% pctrecov = 141% Water Year = 2023 plotvalue = 126% pctrecov = 126% Water Year = 2023 plotvalue = 130% pctrecov = 132% Water Year = 2023 plotvalue = 130% pctrecov = 136% Water Year = 2022 plotvalue = 126% pctrecov = 126% Water Year = 2022 plotvalue = 126% pctrecov = 126% Water Year = 2022 plotvalue = 128% pctrecov = 128% Water Year = 2022 plotvalue = 130% pctrecov = 133% Water Year = 2022 plotvalue = 130% pctrecov = 134% Water Year = 2022 plotvalue = 130% pctrecov = 132% Water Year = 2021 plotvalue = 123% pctrecov = 123% Water Year = 2021 plotvalue = 124% pctrecov = 124% Water Year = 2021 plotvalue = 124% pctrecov = 124% Water Year = 2021 plotvalue = 130% pctrecov = 135% Water Year = 2021 plotvalue = 85% pctrecov = 85% Water Year = 2020 plotvalue = 77% pctrecov = 77% Water Year = 2019 plotvalue = 79% pctrecov = 79% Water Year = 2019 plotvalue = 70% pctrecov = 31% Water Year = 2017 plotvalue = 125% pctrecov = 125% Water Year = 2017 plotvalue = 84% pctrecov = 84% Water Year = 2017 plotvalue = 70% pctrecov = 13% Water Year = 2016 plotvalue = 70% pctrecov = 7% Water Year = 2016 plotvalue = 70% pctrecov = 61% Water Year = 2016 plotvalue = 70% pctrecov = 11% Water Year = 2015 plotvalue = 70% pctrecov = 17% Water Year = 2014 plotvalue = 130% pctrecov = 226% Water Year = 2014 plotvalue = 81% pctrecov = 81% Water Year = 2014 plotvalue = 76% pctrecov = 76% Water Year = 2014 plotvalue = 70% pctrecov = 9% Water Year = 2014 plotvalue = 70% pctrecov = 2% Water Year = 2013 plotvalue = 130% pctrecov = 130% Water Year = 2013 plotvalue = 70% pctrecov = 70% Water Year = 2011 plotvalue = 130% pctrecov = 667% Water Year = 2011 plotvalue = 130% pctrecov = 625% Water Year = 2024 First Quartile = 101% Median = 105% Third Quartile = 109% Number of Observations = 73 Water Year = 2024 First Quartile = 101% Median = 105% Third Quartile = 109% Number of Observations = 73 Water Year = 2024 First Quartile = 101% Median = 105% Third Quartile = 109% Number of Observations = 73 Water Year = 2024 First Quartile = 101% Median = 105% Third Quartile = 109% Number of Observations = 73 Water Year = 2024 First Quartile = 101% Median = 105% Third Quartile = 109% Number of Observations = 73 Water Year = 2024 First Quartile = 101% Median = 105% Third Quartile = 109% Number of Observations = 73 Water Year = 2024 First Quartile = 101% Median = 105% Third Quartile = 109% Number of Observations = 73 Water Year = 2024 First Quartile = 101% Median = 105% Third Quartile = 109% Number of Observations = 73 Water Year = 2023 First Quartile = 101% Median = 105% Third Quartile = 110% Number of Observations = 89 Water Year = 2023 First Quartile = 101% Median = 105% Third Quartile = 110% Number of Observations = 89 Water Year = 2023 First Quartile = 101% Median = 105% Third Quartile = 110% Number of Observations = 89 Water Year = 2023 First Quartile = 101% Median = 105% Third Quartile = 110% Number of Observations = 89 Water Year = 2023 First Quartile = 101% Median = 105% Third Quartile = 110% Number of Observations = 89 Water Year = 2023 First Quartile = 101% Median = 105% Third Quartile = 110% Number of Observations = 89 Water Year = 2023 First Quartile = 101% Median = 105% Third Quartile = 110% Number of Observations = 89 Water Year = 2023 First Quartile = 101% Median = 105% Third Quartile = 110% Number of Observations = 89 Water Year = 2022 First Quartile = 103% Median = 107% Third Quartile = 112% Number of Observations = 89 Water Year = 2022 First Quartile = 103% Median = 107% Third Quartile = 112% Number of Observations = 89 Water Year = 2022 First Quartile = 103% Median = 107% Third Quartile = 112% Number of Observations = 89 Water Year = 2022 First Quartile = 103% Median = 107% Third Quartile = 112% Number of Observations = 89 Water Year = 2022 First Quartile = 103% Median = 107% Third Quartile = 112% Number of Observations = 89 Water Year = 2022 First Quartile = 103% Median = 107% Third Quartile = 112% Number of Observations = 89 Water Year = 2022 First Quartile = 103% Median = 107% Third Quartile = 112% Number of Observations = 89 Water Year = 2022 First Quartile = 103% Median = 107% Third Quartile = 112% Number of Observations = 89 Water Year = 2021 First Quartile = 101% Median = 106% Third Quartile = 110% Number of Observations = 90 Water Year = 2021 First Quartile = 101% Median = 106% Third Quartile = 110% Number of Observations = 90 Water Year = 2021 First Quartile = 101% Median = 106% Third Quartile = 110% Number of Observations = 90 Water Year = 2021 First Quartile = 101% Median = 106% Third Quartile = 110% Number of Observations = 90 Water Year = 2021 First Quartile = 101% Median = 106% Third Quartile = 110% Number of Observations = 90 Water Year = 2021 First Quartile = 101% Median = 106% Third Quartile = 110% Number of Observations = 90 Water Year = 2021 First Quartile = 101% Median = 106% Third Quartile = 110% Number of Observations = 90 Water Year = 2021 First Quartile = 101% Median = 106% Third Quartile = 110% Number of Observations = 90 Water Year = 2020 First Quartile = 95% Median = 101% Third Quartile = 107% Number of Observations = 86 Water Year = 2020 First Quartile = 95% Median = 101% Third Quartile = 107% Number of Observations = 86 Water Year = 2020 First Quartile = 95% Median = 101% Third Quartile = 107% Number of Observations = 86 Water Year = 2020 First Quartile = 95% Median = 101% Third Quartile = 107% Number of Observations = 86 Water Year = 2020 First Quartile = 95% Median = 101% Third Quartile = 107% Number of Observations = 86 Water Year = 2020 First Quartile = 95% Median = 101% Third Quartile = 107% Number of Observations = 86 Water Year = 2020 First Quartile = 95% Median = 101% Third Quartile = 107% Number of Observations = 86 Water Year = 2020 First Quartile = 95% Median = 101% Third Quartile = 107% Number of Observations = 86 Water Year = 2019 First Quartile = 96% Median = 101% Third Quartile = 107% Number of Observations = 78 Water Year = 2019 First Quartile = 96% Median = 101% Third Quartile = 107% Number of Observations = 78 Water Year = 2019 First Quartile = 96% Median = 101% Third Quartile = 107% Number of Observations = 78 Water Year = 2019 First Quartile = 96% Median = 101% Third Quartile = 107% Number of Observations = 78 Water Year = 2019 First Quartile = 96% Median = 101% Third Quartile = 107% Number of Observations = 78 Water Year = 2019 First Quartile = 96% Median = 101% Third Quartile = 107% Number of Observations = 78 Water Year = 2019 First Quartile = 96% Median = 101% Third Quartile = 107% Number of Observations = 78 Water Year = 2019 First Quartile = 96% Median = 101% Third Quartile = 107% Number of Observations = 78 Water Year = 2017 First Quartile = 100% Median = 106% Third Quartile = 110% Number of Observations = 105 Water Year = 2017 First Quartile = 100% Median = 106% Third Quartile = 110% Number of Observations = 105 Water Year = 2017 First Quartile = 100% Median = 106% Third Quartile = 110% Number of Observations = 105 Water Year = 2017 First Quartile = 100% Median = 106% Third Quartile = 110% Number of Observations = 105 Water Year = 2017 First Quartile = 100% Median = 106% Third Quartile = 110% Number of Observations = 105 Water Year = 2017 First Quartile = 100% Median = 106% Third Quartile = 110% Number of Observations = 105 Water Year = 2017 First Quartile = 100% Median = 106% Third Quartile = 110% Number of Observations = 105 Water Year = 2017 First Quartile = 100% Median = 106% Third Quartile = 110% Number of Observations = 105 Water Year = 2016 First Quartile = 97% Median = 100% Third Quartile = 105% Number of Observations = 112 Water Year = 2016 First Quartile = 97% Median = 100% Third Quartile = 105% Number of Observations = 112 Water Year = 2016 First Quartile = 97% Median = 100% Third Quartile = 105% Number of Observations = 112 Water Year = 2016 First Quartile = 97% Median = 100% Third Quartile = 105% Number of Observations = 112 Water Year = 2016 First Quartile = 97% Median = 100% Third Quartile = 105% Number of Observations = 112 Water Year = 2016 First Quartile = 97% Median = 100% Third Quartile = 105% Number of Observations = 112 Water Year = 2016 First Quartile = 97% Median = 100% Third Quartile = 105% Number of Observations = 112 Water Year = 2016 First Quartile = 97% Median = 100% Third Quartile = 105% Number of Observations = 112 Water Year = 2015 First Quartile = 94% Median = 99% Third Quartile = 103% Number of Observations = 90 Water Year = 2015 First Quartile = 94% Median = 99% Third Quartile = 103% Number of Observations = 90 Water Year = 2015 First Quartile = 94% Median = 99% Third Quartile = 103% Number of Observations = 90 Water Year = 2015 First Quartile = 94% Median = 99% Third Quartile = 103% Number of Observations = 90 Water Year = 2015 First Quartile = 94% Median = 99% Third Quartile = 103% Number of Observations = 90 Water Year = 2015 First Quartile = 94% Median = 99% Third Quartile = 103% Number of Observations = 90 Water Year = 2015 First Quartile = 94% Median = 99% Third Quartile = 103% Number of Observations = 90 Water Year = 2015 First Quartile = 94% Median = 99% Third Quartile = 103% Number of Observations = 90 Water Year = 2014 First Quartile = 95% Median = 98% Third Quartile = 102% Number of Observations = 83 Water Year = 2014 First Quartile = 95% Median = 98% Third Quartile = 102% Number of Observations = 83 Water Year = 2014 First Quartile = 95% Median = 98% Third Quartile = 102% Number of Observations = 83 Water Year = 2014 First Quartile = 95% Median = 98% Third Quartile = 102% Number of Observations = 83 Water Year = 2014 First Quartile = 95% Median = 98% Third Quartile = 102% Number of Observations = 83 Water Year = 2014 First Quartile = 95% Median = 98% Third Quartile = 102% Number of Observations = 83 Water Year = 2014 First Quartile = 95% Median = 98% Third Quartile = 102% Number of Observations = 83 Water Year = 2014 First Quartile = 95% Median = 98% Third Quartile = 102% Number of Observations = 83 Water Year = 2013 First Quartile = 96% Median = 101% Third Quartile = 107% Number of Observations = 108 Water Year = 2013 First Quartile = 96% Median = 101% Third Quartile = 107% Number of Observations = 108 Water Year = 2013 First Quartile = 96% Median = 101% Third Quartile = 107% Number of Observations = 108 Water Year = 2013 First Quartile = 96% Median = 101% Third Quartile = 107% Number of Observations = 108 Water Year = 2013 First Quartile = 96% Median = 101% Third Quartile = 107% Number of Observations = 108 Water Year = 2013 First Quartile = 96% Median = 101% Third Quartile = 107% Number of Observations = 108 Water Year = 2013 First Quartile = 96% Median = 101% Third Quartile = 107% Number of Observations = 108 Water Year = 2013 First Quartile = 96% Median = 101% Third Quartile = 107% Number of Observations = 108 Water Year = 2012 First Quartile = 86% Median = 96% Third Quartile = 103% Number of Observations = 132 Water Year = 2012 First Quartile = 86% Median = 96% Third Quartile = 103% Number of Observations = 132 Water Year = 2012 First Quartile = 86% Median = 96% Third Quartile = 103% Number of Observations = 132 Water Year = 2012 First Quartile = 86% Median = 96% Third Quartile = 103% Number of Observations = 132 Water Year = 2012 First Quartile = 86% Median = 96% Third Quartile = 103% Number of Observations = 132 Water Year = 2012 First Quartile = 86% Median = 96% Third Quartile = 103% Number of Observations = 132 Water Year = 2012 First Quartile = 86% Median = 96% Third Quartile = 103% Number of Observations = 132 Water Year = 2012 First Quartile = 86% Median = 96% Third Quartile = 103% Number of Observations = 132 Water Year = 2011 First Quartile = 86% Median = 95% Third Quartile = 100% Number of Observations = 131 Water Year = 2011 First Quartile = 86% Median = 95% Third Quartile = 100% Number of Observations = 131 Water Year = 2011 First Quartile = 86% Median = 95% Third Quartile = 100% Number of Observations = 131 Water Year = 2011 First Quartile = 86% Median = 95% Third Quartile = 100% Number of Observations = 131 Water Year = 2011 First Quartile = 86% Median = 95% Third Quartile = 100% Number of Observations = 131 Water Year = 2011 First Quartile = 86% Median = 95% Third Quartile = 100% Number of Observations = 131 Water Year = 2011 First Quartile = 86% Median = 95% Third Quartile = 100% Number of Observations = 131 Water Year = 2011 First Quartile = 86% Median = 95% Third Quartile = 100% Number of Observations = 131 Water Year = 2010 First Quartile = 86% Median = 93% Third Quartile = 98% Number of Observations = 132 Water Year = 2010 First Quartile = 86% Median = 93% Third Quartile = 98% Number of Observations = 132 Water Year = 2010 First Quartile = 86% Median = 93% Third Quartile = 98% Number of Observations = 132 Water Year = 2010 First Quartile = 86% Median = 93% Third Quartile = 98% Number of Observations = 132 Water Year = 2010 First Quartile = 86% Median = 93% Third Quartile = 98% Number of Observations = 132 Water Year = 2010 First Quartile = 86% Median = 93% Third Quartile = 98% Number of Observations = 132 Water Year = 2010 First Quartile = 86% Median = 93% Third Quartile = 98% Number of Observations = 132 Water Year = 2010 First Quartile = 86% Median = 93% Third Quartile = 98% Number of Observations = 132 Y = 1
The SGPlot Procedure

Percent Recovery Statistics for Lithium, fltd, ICP-MS

Analyte Parm-meth Code Water Year # of
Samples		 25th Pctl 50th Pctl
(Median)		 75th Pctl
Lithium, fltd, ICP-MS 01130PLM40 2010 132 86.4% 92.8% 97.8%
    2011 131 85.8% 94.5% 100.3%
    2012 132 86.4% 95.8% 102.5%
    2013 108 95.7% 100.5% 106.6%
    2014 83 94.7% 98.4% 102.1%
    2015 90 94.4% 99.0% 103.4%
    2016 112 96.8% 100.5% 104.9%
    2017 105 100.1% 105.9% 110.1%
    2019 78 96.1% 101.1% 106.8%
    2020 86 95.2% 101.1% 106.8%
    2021 90 100.8% 106.4% 109.8%
    2022 89 103.3% 106.6% 112.4%
    2023 89 100.8% 104.7% 110.0%
    2024 73 100.9% 104.7% 108.7%

Hover over boxplot or outliers for additional information
Chart generated 03/27/2025
Charts and data secured from this U.S. Geological Survey (USGS) web page (identified as IBSP) have not received official USGS approval and as such are provisional and subject to revision. The charts and data are released on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use.


- Lithium, fltd, ICP-OES -
Lab: NWQL, PCode: 01130, MCode: PLA11
Analysis Dates: 10/15/09 through 08/06/16
Open Data Set
Boxplot Description

Water Year = 2016 plotvalue = 130% pctrecov = 131% Water Year = 2015 plotvalue = 123% pctrecov = 123% Water Year = 2015 plotvalue = 130% pctrecov = 144% Water Year = 2015 plotvalue = 70% pctrecov = 69% Water Year = 2015 plotvalue = 70% pctrecov = 14% Water Year = 2015 plotvalue = 70% pctrecov = 47% Water Year = 2014 plotvalue = 114% pctrecov = 114% Water Year = 2014 plotvalue = 70% pctrecov = 31% Water Year = 2013 plotvalue = 116% pctrecov = 116% Water Year = 2013 plotvalue = 71% pctrecov = 71% Water Year = 2016 First Quartile = 91% Median = 95% Third Quartile = 103% Number of Observations = 18 Water Year = 2016 First Quartile = 91% Median = 95% Third Quartile = 103% Number of Observations = 18 Water Year = 2016 First Quartile = 91% Median = 95% Third Quartile = 103% Number of Observations = 18 Water Year = 2016 First Quartile = 91% Median = 95% Third Quartile = 103% Number of Observations = 18 Water Year = 2016 First Quartile = 91% Median = 95% Third Quartile = 103% Number of Observations = 18 Water Year = 2016 First Quartile = 91% Median = 95% Third Quartile = 103% Number of Observations = 18 Water Year = 2016 First Quartile = 91% Median = 95% Third Quartile = 103% Number of Observations = 18 Water Year = 2016 First Quartile = 91% Median = 95% Third Quartile = 103% Number of Observations = 18 Water Year = 2015 First Quartile = 90% Median = 97% Third Quartile = 101% Number of Observations = 42 Water Year = 2015 First Quartile = 90% Median = 97% Third Quartile = 101% Number of Observations = 42 Water Year = 2015 First Quartile = 90% Median = 97% Third Quartile = 101% Number of Observations = 42 Water Year = 2015 First Quartile = 90% Median = 97% Third Quartile = 101% Number of Observations = 42 Water Year = 2015 First Quartile = 90% Median = 97% Third Quartile = 101% Number of Observations = 42 Water Year = 2015 First Quartile = 90% Median = 97% Third Quartile = 101% Number of Observations = 42 Water Year = 2015 First Quartile = 90% Median = 97% Third Quartile = 101% Number of Observations = 42 Water Year = 2015 First Quartile = 90% Median = 97% Third Quartile = 101% Number of Observations = 42 Water Year = 2014 First Quartile = 91% Median = 93% Third Quartile = 100% Number of Observations = 46 Water Year = 2014 First Quartile = 91% Median = 93% Third Quartile = 100% Number of Observations = 46 Water Year = 2014 First Quartile = 91% Median = 93% Third Quartile = 100% Number of Observations = 46 Water Year = 2014 First Quartile = 91% Median = 93% Third Quartile = 100% Number of Observations = 46 Water Year = 2014 First Quartile = 91% Median = 93% Third Quartile = 100% Number of Observations = 46 Water Year = 2014 First Quartile = 91% Median = 93% Third Quartile = 100% Number of Observations = 46 Water Year = 2014 First Quartile = 91% Median = 93% Third Quartile = 100% Number of Observations = 46 Water Year = 2014 First Quartile = 91% Median = 93% Third Quartile = 100% Number of Observations = 46 Water Year = 2013 First Quartile = 87% Median = 93% Third Quartile = 98% Number of Observations = 42 Water Year = 2013 First Quartile = 87% Median = 93% Third Quartile = 98% Number of Observations = 42 Water Year = 2013 First Quartile = 87% Median = 93% Third Quartile = 98% Number of Observations = 42 Water Year = 2013 First Quartile = 87% Median = 93% Third Quartile = 98% Number of Observations = 42 Water Year = 2013 First Quartile = 87% Median = 93% Third Quartile = 98% Number of Observations = 42 Water Year = 2013 First Quartile = 87% Median = 93% Third Quartile = 98% Number of Observations = 42 Water Year = 2013 First Quartile = 87% Median = 93% Third Quartile = 98% Number of Observations = 42 Water Year = 2013 First Quartile = 87% Median = 93% Third Quartile = 98% Number of Observations = 42 Water Year = 2012 First Quartile = 88% Median = 99% Third Quartile = 130% Number of Observations = 42 Water Year = 2012 First Quartile = 88% Median = 99% Third Quartile = 130% Number of Observations = 42 Water Year = 2012 First Quartile = 88% Median = 99% Third Quartile = 130% Number of Observations = 42 Water Year = 2012 First Quartile = 88% Median = 99% Third Quartile = 130% Number of Observations = 42 Water Year = 2012 First Quartile = 88% Median = 99% Third Quartile = 130% Number of Observations = 42 Water Year = 2012 First Quartile = 88% Median = 99% Third Quartile = 130% Number of Observations = 42 Water Year = 2012 First Quartile = 88% Median = 99% Third Quartile = 130% Number of Observations = 42 Water Year = 2012 First Quartile = 88% Median = 99% Third Quartile = 130% Number of Observations = 42 Water Year = 2011 First Quartile = 113% Median = 119% Third Quartile = 130% Number of Observations = 41 Water Year = 2011 First Quartile = 113% Median = 119% Third Quartile = 130% Number of Observations = 41 Water Year = 2011 First Quartile = 113% Median = 119% Third Quartile = 130% Number of Observations = 41 Water Year = 2011 First Quartile = 113% Median = 119% Third Quartile = 130% Number of Observations = 41 Water Year = 2011 First Quartile = 113% Median = 119% Third Quartile = 130% Number of Observations = 41 Water Year = 2011 First Quartile = 113% Median = 119% Third Quartile = 130% Number of Observations = 41 Water Year = 2011 First Quartile = 113% Median = 119% Third Quartile = 130% Number of Observations = 41 Water Year = 2011 First Quartile = 113% Median = 119% Third Quartile = 130% Number of Observations = 41 Water Year = 2010 First Quartile = 113% Median = 122% Third Quartile = 128% Number of Observations = 42 Water Year = 2010 First Quartile = 113% Median = 122% Third Quartile = 128% Number of Observations = 42 Water Year = 2010 First Quartile = 113% Median = 122% Third Quartile = 128% Number of Observations = 42 Water Year = 2010 First Quartile = 113% Median = 122% Third Quartile = 128% Number of Observations = 42 Water Year = 2010 First Quartile = 113% Median = 122% Third Quartile = 128% Number of Observations = 42 Water Year = 2010 First Quartile = 113% Median = 122% Third Quartile = 128% Number of Observations = 42 Water Year = 2010 First Quartile = 113% Median = 122% Third Quartile = 128% Number of Observations = 42 Water Year = 2010 First Quartile = 113% Median = 122% Third Quartile = 128% Number of Observations = 42 Y = 1
The SGPlot Procedure

Percent Recovery Statistics for Lithium, fltd, ICP-OES

Analyte Parm-meth Code Water Year # of
Samples		 25th Pctl 50th Pctl
(Median)		 75th Pctl
Lithium, fltd, ICP-OES 01130PLA11 2010 42 112.7% 121.8% 127.8%
    2011 41 112.8% 119.0% 129.9%
    2012 42 87.6% 99.2% 131.0%
    2013 42 87.2% 92.7% 97.6%
    2014 46 90.5% 93.4% 99.6%
    2015 42 89.8% 96.5% 101.3%
    2016 18 91.0% 95.5% 103.2%

Hover over boxplot or outliers for additional information
Chart generated 03/27/2025
Charts and data secured from this U.S. Geological Survey (USGS) web page (identified as IBSP) have not received official USGS approval and as such are provisional and subject to revision. The charts and data are released on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use.


- Lithium, unfltd, ICP-MS, recov -
Lab: NWQL, PCode: 01132, MCode: PLM48
Analysis Dates: 10/11/12 through 04/30/15
Open Data Set
Boxplot Description

Water Year = 2014 plotvalue = 114% pctrecov = 114% Water Year = 2014 plotvalue = 79% pctrecov = 79% Water Year = 2014 plotvalue = 78% pctrecov = 78% Water Year = 2014 plotvalue = 70% pctrecov = 69% Water Year = 2015 First Quartile = 95% Median = 99% Third Quartile = 103% Number of Observations = 27 Water Year = 2015 First Quartile = 95% Median = 99% Third Quartile = 103% Number of Observations = 27 Water Year = 2015 First Quartile = 95% Median = 99% Third Quartile = 103% Number of Observations = 27 Water Year = 2015 First Quartile = 95% Median = 99% Third Quartile = 103% Number of Observations = 27 Water Year = 2015 First Quartile = 95% Median = 99% Third Quartile = 103% Number of Observations = 27 Water Year = 2015 First Quartile = 95% Median = 99% Third Quartile = 103% Number of Observations = 27 Water Year = 2015 First Quartile = 95% Median = 99% Third Quartile = 103% Number of Observations = 27 Water Year = 2015 First Quartile = 95% Median = 99% Third Quartile = 103% Number of Observations = 27 Water Year = 2014 First Quartile = 93% Median = 99% Third Quartile = 101% Number of Observations = 45 Water Year = 2014 First Quartile = 93% Median = 99% Third Quartile = 101% Number of Observations = 45 Water Year = 2014 First Quartile = 93% Median = 99% Third Quartile = 101% Number of Observations = 45 Water Year = 2014 First Quartile = 93% Median = 99% Third Quartile = 101% Number of Observations = 45 Water Year = 2014 First Quartile = 93% Median = 99% Third Quartile = 101% Number of Observations = 45 Water Year = 2014 First Quartile = 93% Median = 99% Third Quartile = 101% Number of Observations = 45 Water Year = 2014 First Quartile = 93% Median = 99% Third Quartile = 101% Number of Observations = 45 Water Year = 2014 First Quartile = 93% Median = 99% Third Quartile = 101% Number of Observations = 45 Water Year = 2013 First Quartile = 93% Median = 98% Third Quartile = 104% Number of Observations = 48 Water Year = 2013 First Quartile = 93% Median = 98% Third Quartile = 104% Number of Observations = 48 Water Year = 2013 First Quartile = 93% Median = 98% Third Quartile = 104% Number of Observations = 48 Water Year = 2013 First Quartile = 93% Median = 98% Third Quartile = 104% Number of Observations = 48 Water Year = 2013 First Quartile = 93% Median = 98% Third Quartile = 104% Number of Observations = 48 Water Year = 2013 First Quartile = 93% Median = 98% Third Quartile = 104% Number of Observations = 48 Water Year = 2013 First Quartile = 93% Median = 98% Third Quartile = 104% Number of Observations = 48 Water Year = 2013 First Quartile = 93% Median = 98% Third Quartile = 104% Number of Observations = 48 Y = 1
The SGPlot Procedure

Percent Recovery Statistics for Lithium, unfltd, ICP-MS, recov

Analyte Parm-meth Code Water Year # of
Samples		 25th Pctl 50th Pctl
(Median)		 75th Pctl
Lithium, unfltd, ICP-MS, recov 01132PLM48 2013 48 92.5% 97.9% 103.8%
    2014 45 93.3% 99.1% 101.3%
    2015 27 94.5% 98.9% 102.7%

Hover over boxplot or outliers for additional information
Chart generated 03/27/2025
Charts and data secured from this U.S. Geological Survey (USGS) web page (identified as IBSP) have not received official USGS approval and as such are provisional and subject to revision. The charts and data are released on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use.


- Lithium, unfltd, ICP-MS, recov -
Lab: NWQL, PCode: 01132, MCode: PLM78
Analysis Dates: 05/12/15 through 09/25/24
Open Data Set
Boxplot Description

Water Year = 2024 plotvalue = 120% pctrecov = 120% Water Year = 2024 plotvalue = 122% pctrecov = 122% Water Year = 2024 plotvalue = 130% pctrecov = 138% Water Year = 2023 plotvalue = 123% pctrecov = 123% Water Year = 2022 plotvalue = 124% pctrecov = 124% Water Year = 2021 plotvalue = 122% pctrecov = 122% Water Year = 2017 plotvalue = 119% pctrecov = 119% Water Year = 2016 plotvalue = 119% pctrecov = 119% Water Year = 2024 First Quartile = 101% Median = 104% Third Quartile = 108% Number of Observations = 41 Water Year = 2024 First Quartile = 101% Median = 104% Third Quartile = 108% Number of Observations = 41 Water Year = 2024 First Quartile = 101% Median = 104% Third Quartile = 108% Number of Observations = 41 Water Year = 2024 First Quartile = 101% Median = 104% Third Quartile = 108% Number of Observations = 41 Water Year = 2024 First Quartile = 101% Median = 104% Third Quartile = 108% Number of Observations = 41 Water Year = 2024 First Quartile = 101% Median = 104% Third Quartile = 108% Number of Observations = 41 Water Year = 2024 First Quartile = 101% Median = 104% Third Quartile = 108% Number of Observations = 41 Water Year = 2024 First Quartile = 101% Median = 104% Third Quartile = 108% Number of Observations = 41 Water Year = 2023 First Quartile = 97% Median = 101% Third Quartile = 106% Number of Observations = 48 Water Year = 2023 First Quartile = 97% Median = 101% Third Quartile = 106% Number of Observations = 48 Water Year = 2023 First Quartile = 97% Median = 101% Third Quartile = 106% Number of Observations = 48 Water Year = 2023 First Quartile = 97% Median = 101% Third Quartile = 106% Number of Observations = 48 Water Year = 2023 First Quartile = 97% Median = 101% Third Quartile = 106% Number of Observations = 48 Water Year = 2023 First Quartile = 97% Median = 101% Third Quartile = 106% Number of Observations = 48 Water Year = 2023 First Quartile = 97% Median = 101% Third Quartile = 106% Number of Observations = 48 Water Year = 2023 First Quartile = 97% Median = 101% Third Quartile = 106% Number of Observations = 48 Water Year = 2022 First Quartile = 94% Median = 98% Third Quartile = 103% Number of Observations = 47 Water Year = 2022 First Quartile = 94% Median = 98% Third Quartile = 103% Number of Observations = 47 Water Year = 2022 First Quartile = 94% Median = 98% Third Quartile = 103% Number of Observations = 47 Water Year = 2022 First Quartile = 94% Median = 98% Third Quartile = 103% Number of Observations = 47 Water Year = 2022 First Quartile = 94% Median = 98% Third Quartile = 103% Number of Observations = 47 Water Year = 2022 First Quartile = 94% Median = 98% Third Quartile = 103% Number of Observations = 47 Water Year = 2022 First Quartile = 94% Median = 98% Third Quartile = 103% Number of Observations = 47 Water Year = 2022 First Quartile = 94% Median = 98% Third Quartile = 103% Number of Observations = 47 Water Year = 2021 First Quartile = 93% Median = 98% Third Quartile = 104% Number of Observations = 48 Water Year = 2021 First Quartile = 93% Median = 98% Third Quartile = 104% Number of Observations = 48 Water Year = 2021 First Quartile = 93% Median = 98% Third Quartile = 104% Number of Observations = 48 Water Year = 2021 First Quartile = 93% Median = 98% Third Quartile = 104% Number of Observations = 48 Water Year = 2021 First Quartile = 93% Median = 98% Third Quartile = 104% Number of Observations = 48 Water Year = 2021 First Quartile = 93% Median = 98% Third Quartile = 104% Number of Observations = 48 Water Year = 2021 First Quartile = 93% Median = 98% Third Quartile = 104% Number of Observations = 48 Water Year = 2021 First Quartile = 93% Median = 98% Third Quartile = 104% Number of Observations = 48 Water Year = 2020 First Quartile = 94% Median = 100% Third Quartile = 107% Number of Observations = 44 Water Year = 2020 First Quartile = 94% Median = 100% Third Quartile = 107% Number of Observations = 44 Water Year = 2020 First Quartile = 94% Median = 100% Third Quartile = 107% Number of Observations = 44 Water Year = 2020 First Quartile = 94% Median = 100% Third Quartile = 107% Number of Observations = 44 Water Year = 2020 First Quartile = 94% Median = 100% Third Quartile = 107% Number of Observations = 44 Water Year = 2020 First Quartile = 94% Median = 100% Third Quartile = 107% Number of Observations = 44 Water Year = 2020 First Quartile = 94% Median = 100% Third Quartile = 107% Number of Observations = 44 Water Year = 2020 First Quartile = 94% Median = 100% Third Quartile = 107% Number of Observations = 44 Water Year = 2019 First Quartile = 95% Median = 101% Third Quartile = 107% Number of Observations = 40 Water Year = 2019 First Quartile = 95% Median = 101% Third Quartile = 107% Number of Observations = 40 Water Year = 2019 First Quartile = 95% Median = 101% Third Quartile = 107% Number of Observations = 40 Water Year = 2019 First Quartile = 95% Median = 101% Third Quartile = 107% Number of Observations = 40 Water Year = 2019 First Quartile = 95% Median = 101% Third Quartile = 107% Number of Observations = 40 Water Year = 2019 First Quartile = 95% Median = 101% Third Quartile = 107% Number of Observations = 40 Water Year = 2019 First Quartile = 95% Median = 101% Third Quartile = 107% Number of Observations = 40 Water Year = 2019 First Quartile = 95% Median = 101% Third Quartile = 107% Number of Observations = 40 Water Year = 2017 First Quartile = 93% Median = 97% Third Quartile = 102% Number of Observations = 48 Water Year = 2017 First Quartile = 93% Median = 97% Third Quartile = 102% Number of Observations = 48 Water Year = 2017 First Quartile = 93% Median = 97% Third Quartile = 102% Number of Observations = 48 Water Year = 2017 First Quartile = 93% Median = 97% Third Quartile = 102% Number of Observations = 48 Water Year = 2017 First Quartile = 93% Median = 97% Third Quartile = 102% Number of Observations = 48 Water Year = 2017 First Quartile = 93% Median = 97% Third Quartile = 102% Number of Observations = 48 Water Year = 2017 First Quartile = 93% Median = 97% Third Quartile = 102% Number of Observations = 48 Water Year = 2017 First Quartile = 93% Median = 97% Third Quartile = 102% Number of Observations = 48 Water Year = 2016 First Quartile = 97% Median = 100% Third Quartile = 105% Number of Observations = 48 Water Year = 2016 First Quartile = 97% Median = 100% Third Quartile = 105% Number of Observations = 48 Water Year = 2016 First Quartile = 97% Median = 100% Third Quartile = 105% Number of Observations = 48 Water Year = 2016 First Quartile = 97% Median = 100% Third Quartile = 105% Number of Observations = 48 Water Year = 2016 First Quartile = 97% Median = 100% Third Quartile = 105% Number of Observations = 48 Water Year = 2016 First Quartile = 97% Median = 100% Third Quartile = 105% Number of Observations = 48 Water Year = 2016 First Quartile = 97% Median = 100% Third Quartile = 105% Number of Observations = 48 Water Year = 2016 First Quartile = 97% Median = 100% Third Quartile = 105% Number of Observations = 48 Water Year = 2015 First Quartile = 83% Median = 94% Third Quartile = 101% Number of Observations = 21 Water Year = 2015 First Quartile = 83% Median = 94% Third Quartile = 101% Number of Observations = 21 Water Year = 2015 First Quartile = 83% Median = 94% Third Quartile = 101% Number of Observations = 21 Water Year = 2015 First Quartile = 83% Median = 94% Third Quartile = 101% Number of Observations = 21 Water Year = 2015 First Quartile = 83% Median = 94% Third Quartile = 101% Number of Observations = 21 Water Year = 2015 First Quartile = 83% Median = 94% Third Quartile = 101% Number of Observations = 21 Water Year = 2015 First Quartile = 83% Median = 94% Third Quartile = 101% Number of Observations = 21 Water Year = 2015 First Quartile = 83% Median = 94% Third Quartile = 101% Number of Observations = 21 Y = 1
The SGPlot Procedure

Percent Recovery Statistics for Lithium, unfltd, ICP-MS, recov

Analyte Parm-meth Code Water Year # of
Samples		 25th Pctl 50th Pctl
(Median)		 75th Pctl
Lithium, unfltd, ICP-MS, recov 01132PLM78 2015 21 82.9% 93.8% 101.2%
    2016 48 96.7% 100.3% 105.2%
    2017 48 92.9% 96.5% 102.0%
    2019 40 95.3% 100.9% 106.6%
    2020 44 94.1% 100.0% 107.0%
    2021 48 93.1% 97.5% 104.2%
    2022 47 94.1% 98.2% 102.7%
    2023 48 97.2% 100.5% 106.5%
    2024 41 101.0% 104.1% 108.3%

Hover over boxplot or outliers for additional information
Chart generated 03/27/2025
Charts and data secured from this U.S. Geological Survey (USGS) web page (identified as IBSP) have not received official USGS approval and as such are provisional and subject to revision. The charts and data are released on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use.


- Manganese, fltd, ICP-MS -
Lab: NWQL, PCode: 01056, MCode: PLM43
Analysis Dates: 10/09/09 through 09/28/24
Open Data Set
Boxplot Description

Water Year = 2024 plotvalue = 116% pctrecov = 116% Water Year = 2022 plotvalue = 91% pctrecov = 91% Water Year = 2020 plotvalue = 116% pctrecov = 116% Water Year = 2019 plotvalue = 85% pctrecov = 85% Water Year = 2019 plotvalue = 84% pctrecov = 84% Water Year = 2019 plotvalue = 70% pctrecov = 48% Water Year = 2017 plotvalue = 82% pctrecov = 82% Water Year = 2017 plotvalue = 70% pctrecov = 2% Water Year = 2016 plotvalue = 110% pctrecov = 110% Water Year = 2016 plotvalue = 110% pctrecov = 110% Water Year = 2016 plotvalue = 113% pctrecov = 113% Water Year = 2016 plotvalue = 93% pctrecov = 93% Water Year = 2016 plotvalue = 70% pctrecov = 1% Water Year = 2016 plotvalue = 70% pctrecov = 18% Water Year = 2016 plotvalue = 70% pctrecov = 4% Water Year = 2015 plotvalue = 70% pctrecov = 2% Water Year = 2015 plotvalue = 70% pctrecov = 5% Water Year = 2014 plotvalue = 107% pctrecov = 107% Water Year = 2014 plotvalue = 130% pctrecov = 145% Water Year = 2014 plotvalue = 91% pctrecov = 91% Water Year = 2014 plotvalue = 70% pctrecov = 5% Water Year = 2014 plotvalue = 70% pctrecov = 6% Water Year = 2012 plotvalue = 111% pctrecov = 111% Water Year = 2012 plotvalue = 113% pctrecov = 113% Water Year = 2012 plotvalue = 70% pctrecov = 0% Water Year = 2012 plotvalue = 70% pctrecov = 2% Water Year = 2012 plotvalue = 70% pctrecov = 14% Water Year = 2011 plotvalue = 106% pctrecov = 106% Water Year = 2011 plotvalue = 106% pctrecov = 106% Water Year = 2011 plotvalue = 106% pctrecov = 106% Water Year = 2011 plotvalue = 113% pctrecov = 113% Water Year = 2011 plotvalue = 94% pctrecov = 94% Water Year = 2011 plotvalue = 91% pctrecov = 91% Water Year = 2011 plotvalue = 70% pctrecov = 0% Water Year = 2010 plotvalue = 109% pctrecov = 109% Water Year = 2010 plotvalue = 110% pctrecov = 110% Water Year = 2010 plotvalue = 121% pctrecov = 121% Water Year = 2010 plotvalue = 90% pctrecov = 90% Water Year = 2010 plotvalue = 89% pctrecov = 89% Water Year = 2024 First Quartile = 101% Median = 104% Third Quartile = 106% Number of Observations = 73 Water Year = 2024 First Quartile = 101% Median = 104% Third Quartile = 106% Number of Observations = 73 Water Year = 2024 First Quartile = 101% Median = 104% Third Quartile = 106% Number of Observations = 73 Water Year = 2024 First Quartile = 101% Median = 104% Third Quartile = 106% Number of Observations = 73 Water Year = 2024 First Quartile = 101% Median = 104% Third Quartile = 106% Number of Observations = 73 Water Year = 2024 First Quartile = 101% Median = 104% Third Quartile = 106% Number of Observations = 73 Water Year = 2024 First Quartile = 101% Median = 104% Third Quartile = 106% Number of Observations = 73 Water Year = 2024 First Quartile = 101% Median = 104% Third Quartile = 106% Number of Observations = 73 Water Year = 2023 First Quartile = 97% Median = 100% Third Quartile = 103% Number of Observations = 89 Water Year = 2023 First Quartile = 97% Median = 100% Third Quartile = 103% Number of Observations = 89 Water Year = 2023 First Quartile = 97% Median = 100% Third Quartile = 103% Number of Observations = 89 Water Year = 2023 First Quartile = 97% Median = 100% Third Quartile = 103% Number of Observations = 89 Water Year = 2023 First Quartile = 97% Median = 100% Third Quartile = 103% Number of Observations = 89 Water Year = 2023 First Quartile = 97% Median = 100% Third Quartile = 103% Number of Observations = 89 Water Year = 2023 First Quartile = 97% Median = 100% Third Quartile = 103% Number of Observations = 89 Water Year = 2023 First Quartile = 97% Median = 100% Third Quartile = 103% Number of Observations = 89 Water Year = 2022 First Quartile = 102% Median = 104% Third Quartile = 105% Number of Observations = 89 Water Year = 2022 First Quartile = 102% Median = 104% Third Quartile = 105% Number of Observations = 89 Water Year = 2022 First Quartile = 102% Median = 104% Third Quartile = 105% Number of Observations = 89 Water Year = 2022 First Quartile = 102% Median = 104% Third Quartile = 105% Number of Observations = 89 Water Year = 2022 First Quartile = 102% Median = 104% Third Quartile = 105% Number of Observations = 89 Water Year = 2022 First Quartile = 102% Median = 104% Third Quartile = 105% Number of Observations = 89 Water Year = 2022 First Quartile = 102% Median = 104% Third Quartile = 105% Number of Observations = 89 Water Year = 2022 First Quartile = 102% Median = 104% Third Quartile = 105% Number of Observations = 89 Water Year = 2021 First Quartile = 101% Median = 104% Third Quartile = 106% Number of Observations = 90 Water Year = 2021 First Quartile = 101% Median = 104% Third Quartile = 106% Number of Observations = 90 Water Year = 2021 First Quartile = 101% Median = 104% Third Quartile = 106% Number of Observations = 90 Water Year = 2021 First Quartile = 101% Median = 104% Third Quartile = 106% Number of Observations = 90 Water Year = 2021 First Quartile = 101% Median = 104% Third Quartile = 106% Number of Observations = 90 Water Year = 2021 First Quartile = 101% Median = 104% Third Quartile = 106% Number of Observations = 90 Water Year = 2021 First Quartile = 101% Median = 104% Third Quartile = 106% Number of Observations = 90 Water Year = 2021 First Quartile = 101% Median = 104% Third Quartile = 106% Number of Observations = 90 Water Year = 2020 First Quartile = 95% Median = 98% Third Quartile = 103% Number of Observations = 86 Water Year = 2020 First Quartile = 95% Median = 98% Third Quartile = 103% Number of Observations = 86 Water Year = 2020 First Quartile = 95% Median = 98% Third Quartile = 103% Number of Observations = 86 Water Year = 2020 First Quartile = 95% Median = 98% Third Quartile = 103% Number of Observations = 86 Water Year = 2020 First Quartile = 95% Median = 98% Third Quartile = 103% Number of Observations = 86 Water Year = 2020 First Quartile = 95% Median = 98% Third Quartile = 103% Number of Observations = 86 Water Year = 2020 First Quartile = 95% Median = 98% Third Quartile = 103% Number of Observations = 86 Water Year = 2020 First Quartile = 95% Median = 98% Third Quartile = 103% Number of Observations = 86 Water Year = 2019 First Quartile = 95% Median = 98% Third Quartile = 102% Number of Observations = 78 Water Year = 2019 First Quartile = 95% Median = 98% Third Quartile = 102% Number of Observations = 78 Water Year = 2019 First Quartile = 95% Median = 98% Third Quartile = 102% Number of Observations = 78 Water Year = 2019 First Quartile = 95% Median = 98% Third Quartile = 102% Number of Observations = 78 Water Year = 2019 First Quartile = 95% Median = 98% Third Quartile = 102% Number of Observations = 78 Water Year = 2019 First Quartile = 95% Median = 98% Third Quartile = 102% Number of Observations = 78 Water Year = 2019 First Quartile = 95% Median = 98% Third Quartile = 102% Number of Observations = 78 Water Year = 2019 First Quartile = 95% Median = 98% Third Quartile = 102% Number of Observations = 78 Water Year = 2017 First Quartile = 100% Median = 105% Third Quartile = 109% Number of Observations = 90 Water Year = 2017 First Quartile = 100% Median = 105% Third Quartile = 109% Number of Observations = 90 Water Year = 2017 First Quartile = 100% Median = 105% Third Quartile = 109% Number of Observations = 90 Water Year = 2017 First Quartile = 100% Median = 105% Third Quartile = 109% Number of Observations = 90 Water Year = 2017 First Quartile = 100% Median = 105% Third Quartile = 109% Number of Observations = 90 Water Year = 2017 First Quartile = 100% Median = 105% Third Quartile = 109% Number of Observations = 90 Water Year = 2017 First Quartile = 100% Median = 105% Third Quartile = 109% Number of Observations = 90 Water Year = 2017 First Quartile = 100% Median = 105% Third Quartile = 109% Number of Observations = 90 Water Year = 2016 First Quartile = 100% Median = 102% Third Quartile = 104% Number of Observations = 90 Water Year = 2016 First Quartile = 100% Median = 102% Third Quartile = 104% Number of Observations = 90 Water Year = 2016 First Quartile = 100% Median = 102% Third Quartile = 104% Number of Observations = 90 Water Year = 2016 First Quartile = 100% Median = 102% Third Quartile = 104% Number of Observations = 90 Water Year = 2016 First Quartile = 100% Median = 102% Third Quartile = 104% Number of Observations = 90 Water Year = 2016 First Quartile = 100% Median = 102% Third Quartile = 104% Number of Observations = 90 Water Year = 2016 First Quartile = 100% Median = 102% Third Quartile = 104% Number of Observations = 90 Water Year = 2016 First Quartile = 100% Median = 102% Third Quartile = 104% Number of Observations = 90 Water Year = 2015 First Quartile = 97% Median = 99% Third Quartile = 102% Number of Observations = 90 Water Year = 2015 First Quartile = 97% Median = 99% Third Quartile = 102% Number of Observations = 90 Water Year = 2015 First Quartile = 97% Median = 99% Third Quartile = 102% Number of Observations = 90 Water Year = 2015 First Quartile = 97% Median = 99% Third Quartile = 102% Number of Observations = 90 Water Year = 2015 First Quartile = 97% Median = 99% Third Quartile = 102% Number of Observations = 90 Water Year = 2015 First Quartile = 97% Median = 99% Third Quartile = 102% Number of Observations = 90 Water Year = 2015 First Quartile = 97% Median = 99% Third Quartile = 102% Number of Observations = 90 Water Year = 2015 First Quartile = 97% Median = 99% Third Quartile = 102% Number of Observations = 90 Water Year = 2014 First Quartile = 96% Median = 98% Third Quartile = 100% Number of Observations = 83 Water Year = 2014 First Quartile = 96% Median = 98% Third Quartile = 100% Number of Observations = 83 Water Year = 2014 First Quartile = 96% Median = 98% Third Quartile = 100% Number of Observations = 83 Water Year = 2014 First Quartile = 96% Median = 98% Third Quartile = 100% Number of Observations = 83 Water Year = 2014 First Quartile = 96% Median = 98% Third Quartile = 100% Number of Observations = 83 Water Year = 2014 First Quartile = 96% Median = 98% Third Quartile = 100% Number of Observations = 83 Water Year = 2014 First Quartile = 96% Median = 98% Third Quartile = 100% Number of Observations = 83 Water Year = 2014 First Quartile = 96% Median = 98% Third Quartile = 100% Number of Observations = 83 Water Year = 2013 First Quartile = 98% Median = 100% Third Quartile = 103% Number of Observations = 108 Water Year = 2013 First Quartile = 98% Median = 100% Third Quartile = 103% Number of Observations = 108 Water Year = 2013 First Quartile = 98% Median = 100% Third Quartile = 103% Number of Observations = 108 Water Year = 2013 First Quartile = 98% Median = 100% Third Quartile = 103% Number of Observations = 108 Water Year = 2013 First Quartile = 98% Median = 100% Third Quartile = 103% Number of Observations = 108 Water Year = 2013 First Quartile = 98% Median = 100% Third Quartile = 103% Number of Observations = 108 Water Year = 2013 First Quartile = 98% Median = 100% Third Quartile = 103% Number of Observations = 108 Water Year = 2013 First Quartile = 98% Median = 100% Third Quartile = 103% Number of Observations = 108 Water Year = 2012 First Quartile = 98% Median = 100% Third Quartile = 103% Number of Observations = 132 Water Year = 2012 First Quartile = 98% Median = 100% Third Quartile = 103% Number of Observations = 132 Water Year = 2012 First Quartile = 98% Median = 100% Third Quartile = 103% Number of Observations = 132 Water Year = 2012 First Quartile = 98% Median = 100% Third Quartile = 103% Number of Observations = 132 Water Year = 2012 First Quartile = 98% Median = 100% Third Quartile = 103% Number of Observations = 132 Water Year = 2012 First Quartile = 98% Median = 100% Third Quartile = 103% Number of Observations = 132 Water Year = 2012 First Quartile = 98% Median = 100% Third Quartile = 103% Number of Observations = 132 Water Year = 2012 First Quartile = 98% Median = 100% Third Quartile = 103% Number of Observations = 132 Water Year = 2011 First Quartile = 99% Median = 100% Third Quartile = 101% Number of Observations = 131 Water Year = 2011 First Quartile = 99% Median = 100% Third Quartile = 101% Number of Observations = 131 Water Year = 2011 First Quartile = 99% Median = 100% Third Quartile = 101% Number of Observations = 131 Water Year = 2011 First Quartile = 99% Median = 100% Third Quartile = 101% Number of Observations = 131 Water Year = 2011 First Quartile = 99% Median = 100% Third Quartile = 101% Number of Observations = 131 Water Year = 2011 First Quartile = 99% Median = 100% Third Quartile = 101% Number of Observations = 131 Water Year = 2011 First Quartile = 99% Median = 100% Third Quartile = 101% Number of Observations = 131 Water Year = 2011 First Quartile = 99% Median = 100% Third Quartile = 101% Number of Observations = 131 Water Year = 2010 First Quartile = 98% Median = 100% Third Quartile = 102% Number of Observations = 132 Water Year = 2010 First Quartile = 98% Median = 100% Third Quartile = 102% Number of Observations = 132 Water Year = 2010 First Quartile = 98% Median = 100% Third Quartile = 102% Number of Observations = 132 Water Year = 2010 First Quartile = 98% Median = 100% Third Quartile = 102% Number of Observations = 132 Water Year = 2010 First Quartile = 98% Median = 100% Third Quartile = 102% Number of Observations = 132 Water Year = 2010 First Quartile = 98% Median = 100% Third Quartile = 102% Number of Observations = 132 Water Year = 2010 First Quartile = 98% Median = 100% Third Quartile = 102% Number of Observations = 132 Water Year = 2010 First Quartile = 98% Median = 100% Third Quartile = 102% Number of Observations = 132 Y = 1
The SGPlot Procedure

Percent Recovery Statistics for Manganese, fltd, ICP-MS

Analyte Parm-meth Code Water Year # of
Samples		 25th Pctl 50th Pctl
(Median)		 75th Pctl
Manganese, fltd, ICP-MS 01056PLM43 2010 132 97.6% 99.6% 101.8%
    2011 131 98.7% 100.0% 101.3%
    2012 132 97.9% 100.4% 102.6%
    2013 108 98.1% 99.6% 102.7%
    2014 83 96.5% 98.1% 99.9%
    2015 90 97.2% 99.4% 102.0%
    2016 90 100.1% 102.4% 104.0%
    2017 90 100.4% 104.6% 108.6%
    2019 78 95.1% 98.5% 101.7%
    2020 86 94.7% 98.4% 102.6%
    2021 90 100.7% 104.2% 106.4%
    2022 89 101.6% 103.8% 105.2%
    2023 89 96.8% 100.2% 103.5%
    2024 73 100.8% 104.0% 106.5%

Hover over boxplot or outliers for additional information
Chart generated 03/27/2025
Charts and data secured from this U.S. Geological Survey (USGS) web page (identified as IBSP) have not received official USGS approval and as such are provisional and subject to revision. The charts and data are released on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use.


- Manganese, fltd, ICP-OES -
Lab: NWQL, PCode: 01056, MCode: PLA11
Analysis Dates: 10/14/09 through 09/25/24
Open Data Set
Boxplot Description

Water Year = 2024 plotvalue = 94% pctrecov = 94% Water Year = 2022 plotvalue = 98% pctrecov = 98% Water Year = 2022 plotvalue = 98% pctrecov = 98% Water Year = 2022 plotvalue = 97% pctrecov = 97% Water Year = 2022 plotvalue = 97% pctrecov = 97% Water Year = 2022 plotvalue = 94% pctrecov = 94% Water Year = 2022 plotvalue = 91% pctrecov = 91% Water Year = 2021 plotvalue = 92% pctrecov = 92% Water Year = 2021 plotvalue = 91% pctrecov = 91% Water Year = 2021 plotvalue = 70% pctrecov = 15% Water Year = 2020 plotvalue = 107% pctrecov = 107% Water Year = 2019 plotvalue = 97% pctrecov = 97% Water Year = 2017 plotvalue = 108% pctrecov = 108% Water Year = 2017 plotvalue = 110% pctrecov = 110% Water Year = 2016 plotvalue = 111% pctrecov = 111% Water Year = 2016 plotvalue = 118% pctrecov = 118% Water Year = 2016 plotvalue = 118% pctrecov = 118% Water Year = 2016 plotvalue = 122% pctrecov = 122% Water Year = 2015 plotvalue = 108% pctrecov = 108% Water Year = 2015 plotvalue = 108% pctrecov = 108% Water Year = 2015 plotvalue = 108% pctrecov = 108% Water Year = 2015 plotvalue = 109% pctrecov = 109% Water Year = 2015 plotvalue = 70% pctrecov = 36% Water Year = 2014 plotvalue = 88% pctrecov = 88% Water Year = 2014 plotvalue = 72% pctrecov = 72% Water Year = 2014 plotvalue = 70% pctrecov = 46% Water Year = 2014 plotvalue = 70% pctrecov = 0% Water Year = 2013 plotvalue = 117% pctrecov = 117% Water Year = 2013 plotvalue = 130% pctrecov = 132% Water Year = 2013 plotvalue = 84% pctrecov = 84% Water Year = 2013 plotvalue = 83% pctrecov = 83% Water Year = 2012 plotvalue = 107% pctrecov = 107% Water Year = 2011 plotvalue = 87% pctrecov = 87% Water Year = 2010 plotvalue = 105% pctrecov = 105% Water Year = 2010 plotvalue = 105% pctrecov = 105% Water Year = 2010 plotvalue = 107% pctrecov = 107% Water Year = 2010 plotvalue = 108% pctrecov = 108% Water Year = 2024 First Quartile = 101% Median = 102% Third Quartile = 103% Number of Observations = 93 Water Year = 2024 First Quartile = 101% Median = 102% Third Quartile = 103% Number of Observations = 93 Water Year = 2024 First Quartile = 101% Median = 102% Third Quartile = 103% Number of Observations = 93 Water Year = 2024 First Quartile = 101% Median = 102% Third Quartile = 103% Number of Observations = 93 Water Year = 2024 First Quartile = 101% Median = 102% Third Quartile = 103% Number of Observations = 93 Water Year = 2024 First Quartile = 101% Median = 102% Third Quartile = 103% Number of Observations = 93 Water Year = 2024 First Quartile = 101% Median = 102% Third Quartile = 103% Number of Observations = 93 Water Year = 2024 First Quartile = 101% Median = 102% Third Quartile = 103% Number of Observations = 93 Water Year = 2023 First Quartile = 100% Median = 101% Third Quartile = 103% Number of Observations = 108 Water Year = 2023 First Quartile = 100% Median = 101% Third Quartile = 103% Number of Observations = 108 Water Year = 2023 First Quartile = 100% Median = 101% Third Quartile = 103% Number of Observations = 108 Water Year = 2023 First Quartile = 100% Median = 101% Third Quartile = 103% Number of Observations = 108 Water Year = 2023 First Quartile = 100% Median = 101% Third Quartile = 103% Number of Observations = 108 Water Year = 2023 First Quartile = 100% Median = 101% Third Quartile = 103% Number of Observations = 108 Water Year = 2023 First Quartile = 100% Median = 101% Third Quartile = 103% Number of Observations = 108 Water Year = 2023 First Quartile = 100% Median = 101% Third Quartile = 103% Number of Observations = 108 Water Year = 2022 First Quartile = 102% Median = 103% Third Quartile = 104% Number of Observations = 108 Water Year = 2022 First Quartile = 102% Median = 103% Third Quartile = 104% Number of Observations = 108 Water Year = 2022 First Quartile = 102% Median = 103% Third Quartile = 104% Number of Observations = 108 Water Year = 2022 First Quartile = 102% Median = 103% Third Quartile = 104% Number of Observations = 108 Water Year = 2022 First Quartile = 102% Median = 103% Third Quartile = 104% Number of Observations = 108 Water Year = 2022 First Quartile = 102% Median = 103% Third Quartile = 104% Number of Observations = 108 Water Year = 2022 First Quartile = 102% Median = 103% Third Quartile = 104% Number of Observations = 108 Water Year = 2022 First Quartile = 102% Median = 103% Third Quartile = 104% Number of Observations = 108 Water Year = 2021 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 107 Water Year = 2021 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 107 Water Year = 2021 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 107 Water Year = 2021 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 107 Water Year = 2021 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 107 Water Year = 2021 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 107 Water Year = 2021 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 107 Water Year = 2021 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 107 Water Year = 2020 First Quartile = 100% Median = 102% Third Quartile = 103% Number of Observations = 101 Water Year = 2020 First Quartile = 100% Median = 102% Third Quartile = 103% Number of Observations = 101 Water Year = 2020 First Quartile = 100% Median = 102% Third Quartile = 103% Number of Observations = 101 Water Year = 2020 First Quartile = 100% Median = 102% Third Quartile = 103% Number of Observations = 101 Water Year = 2020 First Quartile = 100% Median = 102% Third Quartile = 103% Number of Observations = 101 Water Year = 2020 First Quartile = 100% Median = 102% Third Quartile = 103% Number of Observations = 101 Water Year = 2020 First Quartile = 100% Median = 102% Third Quartile = 103% Number of Observations = 101 Water Year = 2020 First Quartile = 100% Median = 102% Third Quartile = 103% Number of Observations = 101 Water Year = 2019 First Quartile = 101% Median = 102% Third Quartile = 103% Number of Observations = 95 Water Year = 2019 First Quartile = 101% Median = 102% Third Quartile = 103% Number of Observations = 95 Water Year = 2019 First Quartile = 101% Median = 102% Third Quartile = 103% Number of Observations = 95 Water Year = 2019 First Quartile = 101% Median = 102% Third Quartile = 103% Number of Observations = 95 Water Year = 2019 First Quartile = 101% Median = 102% Third Quartile = 103% Number of Observations = 95 Water Year = 2019 First Quartile = 101% Median = 102% Third Quartile = 103% Number of Observations = 95 Water Year = 2019 First Quartile = 101% Median = 102% Third Quartile = 103% Number of Observations = 95 Water Year = 2019 First Quartile = 101% Median = 102% Third Quartile = 103% Number of Observations = 95 Water Year = 2017 First Quartile = 103% Median = 104% Third Quartile = 105% Number of Observations = 108 Water Year = 2017 First Quartile = 103% Median = 104% Third Quartile = 105% Number of Observations = 108 Water Year = 2017 First Quartile = 103% Median = 104% Third Quartile = 105% Number of Observations = 108 Water Year = 2017 First Quartile = 103% Median = 104% Third Quartile = 105% Number of Observations = 108 Water Year = 2017 First Quartile = 103% Median = 104% Third Quartile = 105% Number of Observations = 108 Water Year = 2017 First Quartile = 103% Median = 104% Third Quartile = 105% Number of Observations = 108 Water Year = 2017 First Quartile = 103% Median = 104% Third Quartile = 105% Number of Observations = 108 Water Year = 2017 First Quartile = 103% Median = 104% Third Quartile = 105% Number of Observations = 108 Water Year = 2016 First Quartile = 98% Median = 101% Third Quartile = 103% Number of Observations = 112 Water Year = 2016 First Quartile = 98% Median = 101% Third Quartile = 103% Number of Observations = 112 Water Year = 2016 First Quartile = 98% Median = 101% Third Quartile = 103% Number of Observations = 112 Water Year = 2016 First Quartile = 98% Median = 101% Third Quartile = 103% Number of Observations = 112 Water Year = 2016 First Quartile = 98% Median = 101% Third Quartile = 103% Number of Observations = 112 Water Year = 2016 First Quartile = 98% Median = 101% Third Quartile = 103% Number of Observations = 112 Water Year = 2016 First Quartile = 98% Median = 101% Third Quartile = 103% Number of Observations = 112 Water Year = 2016 First Quartile = 98% Median = 101% Third Quartile = 103% Number of Observations = 112 Water Year = 2015 First Quartile = 95% Median = 97% Third Quartile = 100% Number of Observations = 114 Water Year = 2015 First Quartile = 95% Median = 97% Third Quartile = 100% Number of Observations = 114 Water Year = 2015 First Quartile = 95% Median = 97% Third Quartile = 100% Number of Observations = 114 Water Year = 2015 First Quartile = 95% Median = 97% Third Quartile = 100% Number of Observations = 114 Water Year = 2015 First Quartile = 95% Median = 97% Third Quartile = 100% Number of Observations = 114 Water Year = 2015 First Quartile = 95% Median = 97% Third Quartile = 100% Number of Observations = 114 Water Year = 2015 First Quartile = 95% Median = 97% Third Quartile = 100% Number of Observations = 114 Water Year = 2015 First Quartile = 95% Median = 97% Third Quartile = 100% Number of Observations = 114 Water Year = 2014 First Quartile = 96% Median = 98% Third Quartile = 100% Number of Observations = 107 Water Year = 2014 First Quartile = 96% Median = 98% Third Quartile = 100% Number of Observations = 107 Water Year = 2014 First Quartile = 96% Median = 98% Third Quartile = 100% Number of Observations = 107 Water Year = 2014 First Quartile = 96% Median = 98% Third Quartile = 100% Number of Observations = 107 Water Year = 2014 First Quartile = 96% Median = 98% Third Quartile = 100% Number of Observations = 107 Water Year = 2014 First Quartile = 96% Median = 98% Third Quartile = 100% Number of Observations = 107 Water Year = 2014 First Quartile = 96% Median = 98% Third Quartile = 100% Number of Observations = 107 Water Year = 2014 First Quartile = 96% Median = 98% Third Quartile = 100% Number of Observations = 107 Water Year = 2013 First Quartile = 93% Median = 96% Third Quartile = 99% Number of Observations = 121 Water Year = 2013 First Quartile = 93% Median = 96% Third Quartile = 99% Number of Observations = 121 Water Year = 2013 First Quartile = 93% Median = 96% Third Quartile = 99% Number of Observations = 121 Water Year = 2013 First Quartile = 93% Median = 96% Third Quartile = 99% Number of Observations = 121 Water Year = 2013 First Quartile = 93% Median = 96% Third Quartile = 99% Number of Observations = 121 Water Year = 2013 First Quartile = 93% Median = 96% Third Quartile = 99% Number of Observations = 121 Water Year = 2013 First Quartile = 93% Median = 96% Third Quartile = 99% Number of Observations = 121 Water Year = 2013 First Quartile = 93% Median = 96% Third Quartile = 99% Number of Observations = 121 Water Year = 2012 First Quartile = 93% Median = 96% Third Quartile = 98% Number of Observations = 140 Water Year = 2012 First Quartile = 93% Median = 96% Third Quartile = 98% Number of Observations = 140 Water Year = 2012 First Quartile = 93% Median = 96% Third Quartile = 98% Number of Observations = 140 Water Year = 2012 First Quartile = 93% Median = 96% Third Quartile = 98% Number of Observations = 140 Water Year = 2012 First Quartile = 93% Median = 96% Third Quartile = 98% Number of Observations = 140 Water Year = 2012 First Quartile = 93% Median = 96% Third Quartile = 98% Number of Observations = 140 Water Year = 2012 First Quartile = 93% Median = 96% Third Quartile = 98% Number of Observations = 140 Water Year = 2012 First Quartile = 93% Median = 96% Third Quartile = 98% Number of Observations = 140 Water Year = 2011 First Quartile = 95% Median = 97% Third Quartile = 99% Number of Observations = 143 Water Year = 2011 First Quartile = 95% Median = 97% Third Quartile = 99% Number of Observations = 143 Water Year = 2011 First Quartile = 95% Median = 97% Third Quartile = 99% Number of Observations = 143 Water Year = 2011 First Quartile = 95% Median = 97% Third Quartile = 99% Number of Observations = 143 Water Year = 2011 First Quartile = 95% Median = 97% Third Quartile = 99% Number of Observations = 143 Water Year = 2011 First Quartile = 95% Median = 97% Third Quartile = 99% Number of Observations = 143 Water Year = 2011 First Quartile = 95% Median = 97% Third Quartile = 99% Number of Observations = 143 Water Year = 2011 First Quartile = 95% Median = 97% Third Quartile = 99% Number of Observations = 143 Water Year = 2010 First Quartile = 95% Median = 96% Third Quartile = 99% Number of Observations = 144 Water Year = 2010 First Quartile = 95% Median = 96% Third Quartile = 99% Number of Observations = 144 Water Year = 2010 First Quartile = 95% Median = 96% Third Quartile = 99% Number of Observations = 144 Water Year = 2010 First Quartile = 95% Median = 96% Third Quartile = 99% Number of Observations = 144 Water Year = 2010 First Quartile = 95% Median = 96% Third Quartile = 99% Number of Observations = 144 Water Year = 2010 First Quartile = 95% Median = 96% Third Quartile = 99% Number of Observations = 144 Water Year = 2010 First Quartile = 95% Median = 96% Third Quartile = 99% Number of Observations = 144 Water Year = 2010 First Quartile = 95% Median = 96% Third Quartile = 99% Number of Observations = 144 Y = 1
The SGPlot Procedure

Percent Recovery Statistics for Manganese, fltd, ICP-OES

Analyte Parm-meth Code Water Year # of
Samples		 25th Pctl 50th Pctl
(Median)		 75th Pctl
Manganese, fltd, ICP-OES 01056PLA11 2010 144 94.5% 96.0% 98.6%
    2011 143 95.2% 97.1% 99.0%
    2012 140 93.1% 95.8% 98.5%
    2013 121 93.1% 96.1% 98.8%
    2014 107 96.0% 97.9% 99.6%
    2015 114 94.5% 97.5% 99.7%
    2016 112 97.6% 100.6% 102.8%
    2017 108 103.1% 104.0% 104.9%
    2019 95 101.1% 102.3% 103.4%
    2020 101 100.2% 101.9% 103.0%
    2021 107 98.5% 101.4% 102.7%
    2022 108 101.7% 103.2% 104.4%
    2023 108 100.0% 101.4% 103.1%
    2024 93 100.5% 102.1% 103.4%

Hover over boxplot or outliers for additional information
Chart generated 03/27/2025
Charts and data secured from this U.S. Geological Survey (USGS) web page (identified as IBSP) have not received official USGS approval and as such are provisional and subject to revision. The charts and data are released on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use.


- Manganese, unfltd, ICP-MS, recov -
Lab: NWQL, PCode: 01055, MCode: PLM48
Analysis Dates: 10/05/09 through 04/30/15
Open Data Set
Boxplot Description

Water Year = 2014 plotvalue = 92% pctrecov = 92% Water Year = 2014 plotvalue = 91% pctrecov = 91% Water Year = 2013 plotvalue = 104% pctrecov = 104% Water Year = 2012 plotvalue = 91% pctrecov = 91% Water Year = 2011 plotvalue = 93% pctrecov = 93% Water Year = 2011 plotvalue = 93% pctrecov = 93% Water Year = 2011 plotvalue = 92% pctrecov = 92% Water Year = 2010 plotvalue = 111% pctrecov = 111% Water Year = 2010 plotvalue = 111% pctrecov = 111% Water Year = 2010 plotvalue = 112% pctrecov = 112% Water Year = 2010 plotvalue = 114% pctrecov = 114% Water Year = 2010 plotvalue = 130% pctrecov = 667% Water Year = 2009 plotvalue = 113% pctrecov = 113% Water Year = 2015 First Quartile = 97% Median = 99% Third Quartile = 102% Number of Observations = 27 Water Year = 2015 First Quartile = 97% Median = 99% Third Quartile = 102% Number of Observations = 27 Water Year = 2015 First Quartile = 97% Median = 99% Third Quartile = 102% Number of Observations = 27 Water Year = 2015 First Quartile = 97% Median = 99% Third Quartile = 102% Number of Observations = 27 Water Year = 2015 First Quartile = 97% Median = 99% Third Quartile = 102% Number of Observations = 27 Water Year = 2015 First Quartile = 97% Median = 99% Third Quartile = 102% Number of Observations = 27 Water Year = 2015 First Quartile = 97% Median = 99% Third Quartile = 102% Number of Observations = 27 Water Year = 2015 First Quartile = 97% Median = 99% Third Quartile = 102% Number of Observations = 27 Water Year = 2014 First Quartile = 96% Median = 98% Third Quartile = 99% Number of Observations = 45 Water Year = 2014 First Quartile = 96% Median = 98% Third Quartile = 99% Number of Observations = 45 Water Year = 2014 First Quartile = 96% Median = 98% Third Quartile = 99% Number of Observations = 45 Water Year = 2014 First Quartile = 96% Median = 98% Third Quartile = 99% Number of Observations = 45 Water Year = 2014 First Quartile = 96% Median = 98% Third Quartile = 99% Number of Observations = 45 Water Year = 2014 First Quartile = 96% Median = 98% Third Quartile = 99% Number of Observations = 45 Water Year = 2014 First Quartile = 96% Median = 98% Third Quartile = 99% Number of Observations = 45 Water Year = 2014 First Quartile = 96% Median = 98% Third Quartile = 99% Number of Observations = 45 Water Year = 2013 First Quartile = 96% Median = 97% Third Quartile = 98% Number of Observations = 48 Water Year = 2013 First Quartile = 96% Median = 97% Third Quartile = 98% Number of Observations = 48 Water Year = 2013 First Quartile = 96% Median = 97% Third Quartile = 98% Number of Observations = 48 Water Year = 2013 First Quartile = 96% Median = 97% Third Quartile = 98% Number of Observations = 48 Water Year = 2013 First Quartile = 96% Median = 97% Third Quartile = 98% Number of Observations = 48 Water Year = 2013 First Quartile = 96% Median = 97% Third Quartile = 98% Number of Observations = 48 Water Year = 2013 First Quartile = 96% Median = 97% Third Quartile = 98% Number of Observations = 48 Water Year = 2013 First Quartile = 96% Median = 97% Third Quartile = 98% Number of Observations = 48 Water Year = 2012 First Quartile = 97% Median = 99% Third Quartile = 100% Number of Observations = 82 Water Year = 2012 First Quartile = 97% Median = 99% Third Quartile = 100% Number of Observations = 82 Water Year = 2012 First Quartile = 97% Median = 99% Third Quartile = 100% Number of Observations = 82 Water Year = 2012 First Quartile = 97% Median = 99% Third Quartile = 100% Number of Observations = 82 Water Year = 2012 First Quartile = 97% Median = 99% Third Quartile = 100% Number of Observations = 82 Water Year = 2012 First Quartile = 97% Median = 99% Third Quartile = 100% Number of Observations = 82 Water Year = 2012 First Quartile = 97% Median = 99% Third Quartile = 100% Number of Observations = 82 Water Year = 2012 First Quartile = 97% Median = 99% Third Quartile = 100% Number of Observations = 82 Water Year = 2011 First Quartile = 98% Median = 100% Third Quartile = 101% Number of Observations = 130 Water Year = 2011 First Quartile = 98% Median = 100% Third Quartile = 101% Number of Observations = 130 Water Year = 2011 First Quartile = 98% Median = 100% Third Quartile = 101% Number of Observations = 130 Water Year = 2011 First Quartile = 98% Median = 100% Third Quartile = 101% Number of Observations = 130 Water Year = 2011 First Quartile = 98% Median = 100% Third Quartile = 101% Number of Observations = 130 Water Year = 2011 First Quartile = 98% Median = 100% Third Quartile = 101% Number of Observations = 130 Water Year = 2011 First Quartile = 98% Median = 100% Third Quartile = 101% Number of Observations = 130 Water Year = 2011 First Quartile = 98% Median = 100% Third Quartile = 101% Number of Observations = 130 Water Year = 2010 First Quartile = 100% Median = 103% Third Quartile = 104% Number of Observations = 84 Water Year = 2010 First Quartile = 100% Median = 103% Third Quartile = 104% Number of Observations = 84 Water Year = 2010 First Quartile = 100% Median = 103% Third Quartile = 104% Number of Observations = 84 Water Year = 2010 First Quartile = 100% Median = 103% Third Quartile = 104% Number of Observations = 84 Water Year = 2010 First Quartile = 100% Median = 103% Third Quartile = 104% Number of Observations = 84 Water Year = 2010 First Quartile = 100% Median = 103% Third Quartile = 104% Number of Observations = 84 Water Year = 2010 First Quartile = 100% Median = 103% Third Quartile = 104% Number of Observations = 84 Water Year = 2010 First Quartile = 100% Median = 103% Third Quartile = 104% Number of Observations = 84 Water Year = 2009 First Quartile = 101% Median = 102% Third Quartile = 103% Number of Observations = 9 Water Year = 2009 First Quartile = 101% Median = 102% Third Quartile = 103% Number of Observations = 9 Water Year = 2009 First Quartile = 101% Median = 102% Third Quartile = 103% Number of Observations = 9 Water Year = 2009 First Quartile = 101% Median = 102% Third Quartile = 103% Number of Observations = 9 Water Year = 2009 First Quartile = 101% Median = 102% Third Quartile = 103% Number of Observations = 9 Water Year = 2009 First Quartile = 101% Median = 102% Third Quartile = 103% Number of Observations = 9 Water Year = 2009 First Quartile = 101% Median = 102% Third Quartile = 103% Number of Observations = 9 Water Year = 2009 First Quartile = 101% Median = 102% Third Quartile = 103% Number of Observations = 9 Y = 1
The SGPlot Procedure

Percent Recovery Statistics for Manganese, unfltd, ICP-MS, recov

Analyte Parm-meth Code Water Year # of
Samples		 25th Pctl 50th Pctl
(Median)		 75th Pctl
Manganese, unfltd, ICP-MS, recov 01055PLM48 2009 9 100.7% 101.5% 102.7%
    2010 84 100.3% 103.0% 104.5%
    2011 130 98.1% 100.1% 101.3%
    2012 82 96.6% 98.5% 99.9%
    2013 48 95.5% 97.0% 98.1%
    2014 45 96.3% 97.7% 99.1%
    2015 27 97.0% 99.4% 101.7%

Hover over boxplot or outliers for additional information
Chart generated 03/27/2025
Charts and data secured from this U.S. Geological Survey (USGS) web page (identified as IBSP) have not received official USGS approval and as such are provisional and subject to revision. The charts and data are released on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use.


- Manganese, unfltd, ICP-MS, recov -
Lab: NWQL, PCode: 01055, MCode: PLM78
Analysis Dates: 05/12/15 through 09/25/24
Open Data Set
Boxplot Description

Water Year = 2024 plotvalue = 123% pctrecov = 123% Water Year = 2023 plotvalue = 85% pctrecov = 85% Water Year = 2022 plotvalue = 78% pctrecov = 78% Water Year = 2021 plotvalue = 113% pctrecov = 113% Water Year = 2020 plotvalue = 114% pctrecov = 114% Water Year = 2019 plotvalue = 112% pctrecov = 112% Water Year = 2019 plotvalue = 88% pctrecov = 88% Water Year = 2019 plotvalue = 88% pctrecov = 88% Water Year = 2016 plotvalue = 108% pctrecov = 108% Water Year = 2024 First Quartile = 101% Median = 104% Third Quartile = 108% Number of Observations = 42 Water Year = 2024 First Quartile = 101% Median = 104% Third Quartile = 108% Number of Observations = 42 Water Year = 2024 First Quartile = 101% Median = 104% Third Quartile = 108% Number of Observations = 42 Water Year = 2024 First Quartile = 101% Median = 104% Third Quartile = 108% Number of Observations = 42 Water Year = 2024 First Quartile = 101% Median = 104% Third Quartile = 108% Number of Observations = 42 Water Year = 2024 First Quartile = 101% Median = 104% Third Quartile = 108% Number of Observations = 42 Water Year = 2024 First Quartile = 101% Median = 104% Third Quartile = 108% Number of Observations = 42 Water Year = 2024 First Quartile = 101% Median = 104% Third Quartile = 108% Number of Observations = 42 Water Year = 2023 First Quartile = 97% Median = 102% Third Quartile = 105% Number of Observations = 48 Water Year = 2023 First Quartile = 97% Median = 102% Third Quartile = 105% Number of Observations = 48 Water Year = 2023 First Quartile = 97% Median = 102% Third Quartile = 105% Number of Observations = 48 Water Year = 2023 First Quartile = 97% Median = 102% Third Quartile = 105% Number of Observations = 48 Water Year = 2023 First Quartile = 97% Median = 102% Third Quartile = 105% Number of Observations = 48 Water Year = 2023 First Quartile = 97% Median = 102% Third Quartile = 105% Number of Observations = 48 Water Year = 2023 First Quartile = 97% Median = 102% Third Quartile = 105% Number of Observations = 48 Water Year = 2023 First Quartile = 97% Median = 102% Third Quartile = 105% Number of Observations = 48 Water Year = 2022 First Quartile = 97% Median = 100% Third Quartile = 103% Number of Observations = 47 Water Year = 2022 First Quartile = 97% Median = 100% Third Quartile = 103% Number of Observations = 47 Water Year = 2022 First Quartile = 97% Median = 100% Third Quartile = 103% Number of Observations = 47 Water Year = 2022 First Quartile = 97% Median = 100% Third Quartile = 103% Number of Observations = 47 Water Year = 2022 First Quartile = 97% Median = 100% Third Quartile = 103% Number of Observations = 47 Water Year = 2022 First Quartile = 97% Median = 100% Third Quartile = 103% Number of Observations = 47 Water Year = 2022 First Quartile = 97% Median = 100% Third Quartile = 103% Number of Observations = 47 Water Year = 2022 First Quartile = 97% Median = 100% Third Quartile = 103% Number of Observations = 47 Water Year = 2021 First Quartile = 97% Median = 101% Third Quartile = 103% Number of Observations = 48 Water Year = 2021 First Quartile = 97% Median = 101% Third Quartile = 103% Number of Observations = 48 Water Year = 2021 First Quartile = 97% Median = 101% Third Quartile = 103% Number of Observations = 48 Water Year = 2021 First Quartile = 97% Median = 101% Third Quartile = 103% Number of Observations = 48 Water Year = 2021 First Quartile = 97% Median = 101% Third Quartile = 103% Number of Observations = 48 Water Year = 2021 First Quartile = 97% Median = 101% Third Quartile = 103% Number of Observations = 48 Water Year = 2021 First Quartile = 97% Median = 101% Third Quartile = 103% Number of Observations = 48 Water Year = 2021 First Quartile = 97% Median = 101% Third Quartile = 103% Number of Observations = 48 Water Year = 2020 First Quartile = 98% Median = 102% Third Quartile = 104% Number of Observations = 44 Water Year = 2020 First Quartile = 98% Median = 102% Third Quartile = 104% Number of Observations = 44 Water Year = 2020 First Quartile = 98% Median = 102% Third Quartile = 104% Number of Observations = 44 Water Year = 2020 First Quartile = 98% Median = 102% Third Quartile = 104% Number of Observations = 44 Water Year = 2020 First Quartile = 98% Median = 102% Third Quartile = 104% Number of Observations = 44 Water Year = 2020 First Quartile = 98% Median = 102% Third Quartile = 104% Number of Observations = 44 Water Year = 2020 First Quartile = 98% Median = 102% Third Quartile = 104% Number of Observations = 44 Water Year = 2020 First Quartile = 98% Median = 102% Third Quartile = 104% Number of Observations = 44 Water Year = 2019 First Quartile = 97% Median = 99% Third Quartile = 103% Number of Observations = 40 Water Year = 2019 First Quartile = 97% Median = 99% Third Quartile = 103% Number of Observations = 40 Water Year = 2019 First Quartile = 97% Median = 99% Third Quartile = 103% Number of Observations = 40 Water Year = 2019 First Quartile = 97% Median = 99% Third Quartile = 103% Number of Observations = 40 Water Year = 2019 First Quartile = 97% Median = 99% Third Quartile = 103% Number of Observations = 40 Water Year = 2019 First Quartile = 97% Median = 99% Third Quartile = 103% Number of Observations = 40 Water Year = 2019 First Quartile = 97% Median = 99% Third Quartile = 103% Number of Observations = 40 Water Year = 2019 First Quartile = 97% Median = 99% Third Quartile = 103% Number of Observations = 40 Water Year = 2017 First Quartile = 98% Median = 101% Third Quartile = 105% Number of Observations = 48 Water Year = 2017 First Quartile = 98% Median = 101% Third Quartile = 105% Number of Observations = 48 Water Year = 2017 First Quartile = 98% Median = 101% Third Quartile = 105% Number of Observations = 48 Water Year = 2017 First Quartile = 98% Median = 101% Third Quartile = 105% Number of Observations = 48 Water Year = 2017 First Quartile = 98% Median = 101% Third Quartile = 105% Number of Observations = 48 Water Year = 2017 First Quartile = 98% Median = 101% Third Quartile = 105% Number of Observations = 48 Water Year = 2017 First Quartile = 98% Median = 101% Third Quartile = 105% Number of Observations = 48 Water Year = 2017 First Quartile = 98% Median = 101% Third Quartile = 105% Number of Observations = 48 Water Year = 2016 First Quartile = 100% Median = 101% Third Quartile = 103% Number of Observations = 48 Water Year = 2016 First Quartile = 100% Median = 101% Third Quartile = 103% Number of Observations = 48 Water Year = 2016 First Quartile = 100% Median = 101% Third Quartile = 103% Number of Observations = 48 Water Year = 2016 First Quartile = 100% Median = 101% Third Quartile = 103% Number of Observations = 48 Water Year = 2016 First Quartile = 100% Median = 101% Third Quartile = 103% Number of Observations = 48 Water Year = 2016 First Quartile = 100% Median = 101% Third Quartile = 103% Number of Observations = 48 Water Year = 2016 First Quartile = 100% Median = 101% Third Quartile = 103% Number of Observations = 48 Water Year = 2016 First Quartile = 100% Median = 101% Third Quartile = 103% Number of Observations = 48 Water Year = 2015 First Quartile = 96% Median = 98% Third Quartile = 99% Number of Observations = 21 Water Year = 2015 First Quartile = 96% Median = 98% Third Quartile = 99% Number of Observations = 21 Water Year = 2015 First Quartile = 96% Median = 98% Third Quartile = 99% Number of Observations = 21 Water Year = 2015 First Quartile = 96% Median = 98% Third Quartile = 99% Number of Observations = 21 Water Year = 2015 First Quartile = 96% Median = 98% Third Quartile = 99% Number of Observations = 21 Water Year = 2015 First Quartile = 96% Median = 98% Third Quartile = 99% Number of Observations = 21 Water Year = 2015 First Quartile = 96% Median = 98% Third Quartile = 99% Number of Observations = 21 Water Year = 2015 First Quartile = 96% Median = 98% Third Quartile = 99% Number of Observations = 21 Y = 1
The SGPlot Procedure

Percent Recovery Statistics for Manganese, unfltd, ICP-MS, recov

Analyte Parm-meth Code Water Year # of
Samples		 25th Pctl 50th Pctl
(Median)		 75th Pctl
Manganese, unfltd, ICP-MS, recov 01055PLM78 2015 21 96.2% 98.2% 99.4%
    2016 48 99.6% 100.9% 102.8%
    2017 48 97.9% 101.4% 104.8%
    2019 40 97.3% 99.5% 102.7%
    2020 44 97.9% 101.8% 103.9%
    2021 48 96.9% 100.9% 103.4%
    2022 47 97.4% 100.3% 103.4%
    2023 48 96.8% 101.8% 104.7%
    2024 42 101.0% 104.2% 108.0%

Hover over boxplot or outliers for additional information
Chart generated 03/27/2025
Charts and data secured from this U.S. Geological Survey (USGS) web page (identified as IBSP) have not received official USGS approval and as such are provisional and subject to revision. The charts and data are released on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use.


- Manganese, unfltd, ICP-OES, recov -
Lab: NWQL, PCode: 01055, MCode: PLA15
Analysis Dates: 11/12/09 through 03/27/15
Open Data Set
Boxplot Description

Water Year = 2014 plotvalue = 97% pctrecov = 97% Water Year = 2014 plotvalue = 97% pctrecov = 97% Water Year = 2014 plotvalue = 105% pctrecov = 105% Water Year = 2014 plotvalue = 87% pctrecov = 87% Water Year = 2014 plotvalue = 82% pctrecov = 82% Water Year = 2013 plotvalue = 103% pctrecov = 103% Water Year = 2013 plotvalue = 80% pctrecov = 80% Water Year = 2012 plotvalue = 100% pctrecov = 100% Water Year = 2011 plotvalue = 130% pctrecov = 321% Water Year = 2011 plotvalue = 91% pctrecov = 91% Water Year = 2010 plotvalue = 103% pctrecov = 103% Water Year = 2010 plotvalue = 106% pctrecov = 106% Water Year = 2015 First Quartile = 88% Median = 92% Third Quartile = 95% Number of Observations = 39 Water Year = 2015 First Quartile = 88% Median = 92% Third Quartile = 95% Number of Observations = 39 Water Year = 2015 First Quartile = 88% Median = 92% Third Quartile = 95% Number of Observations = 39 Water Year = 2015 First Quartile = 88% Median = 92% Third Quartile = 95% Number of Observations = 39 Water Year = 2015 First Quartile = 88% Median = 92% Third Quartile = 95% Number of Observations = 39 Water Year = 2015 First Quartile = 88% Median = 92% Third Quartile = 95% Number of Observations = 39 Water Year = 2015 First Quartile = 88% Median = 92% Third Quartile = 95% Number of Observations = 39 Water Year = 2015 First Quartile = 88% Median = 92% Third Quartile = 95% Number of Observations = 39 Water Year = 2014 First Quartile = 91% Median = 92% Third Quartile = 93% Number of Observations = 85 Water Year = 2014 First Quartile = 91% Median = 92% Third Quartile = 93% Number of Observations = 85 Water Year = 2014 First Quartile = 91% Median = 92% Third Quartile = 93% Number of Observations = 85 Water Year = 2014 First Quartile = 91% Median = 92% Third Quartile = 93% Number of Observations = 85 Water Year = 2014 First Quartile = 91% Median = 92% Third Quartile = 93% Number of Observations = 85 Water Year = 2014 First Quartile = 91% Median = 92% Third Quartile = 93% Number of Observations = 85 Water Year = 2014 First Quartile = 91% Median = 92% Third Quartile = 93% Number of Observations = 85 Water Year = 2014 First Quartile = 91% Median = 92% Third Quartile = 93% Number of Observations = 85 Water Year = 2013 First Quartile = 89% Median = 93% Third Quartile = 94% Number of Observations = 42 Water Year = 2013 First Quartile = 89% Median = 93% Third Quartile = 94% Number of Observations = 42 Water Year = 2013 First Quartile = 89% Median = 93% Third Quartile = 94% Number of Observations = 42 Water Year = 2013 First Quartile = 89% Median = 93% Third Quartile = 94% Number of Observations = 42 Water Year = 2013 First Quartile = 89% Median = 93% Third Quartile = 94% Number of Observations = 42 Water Year = 2013 First Quartile = 89% Median = 93% Third Quartile = 94% Number of Observations = 42 Water Year = 2013 First Quartile = 89% Median = 93% Third Quartile = 94% Number of Observations = 42 Water Year = 2013 First Quartile = 89% Median = 93% Third Quartile = 94% Number of Observations = 42 Water Year = 2012 First Quartile = 92% Median = 94% Third Quartile = 95% Number of Observations = 42 Water Year = 2012 First Quartile = 92% Median = 94% Third Quartile = 95% Number of Observations = 42 Water Year = 2012 First Quartile = 92% Median = 94% Third Quartile = 95% Number of Observations = 42 Water Year = 2012 First Quartile = 92% Median = 94% Third Quartile = 95% Number of Observations = 42 Water Year = 2012 First Quartile = 92% Median = 94% Third Quartile = 95% Number of Observations = 42 Water Year = 2012 First Quartile = 92% Median = 94% Third Quartile = 95% Number of Observations = 42 Water Year = 2012 First Quartile = 92% Median = 94% Third Quartile = 95% Number of Observations = 42 Water Year = 2012 First Quartile = 92% Median = 94% Third Quartile = 95% Number of Observations = 42 Water Year = 2011 First Quartile = 95% Median = 96% Third Quartile = 97% Number of Observations = 41 Water Year = 2011 First Quartile = 95% Median = 96% Third Quartile = 97% Number of Observations = 41 Water Year = 2011 First Quartile = 95% Median = 96% Third Quartile = 97% Number of Observations = 41 Water Year = 2011 First Quartile = 95% Median = 96% Third Quartile = 97% Number of Observations = 41 Water Year = 2011 First Quartile = 95% Median = 96% Third Quartile = 97% Number of Observations = 41 Water Year = 2011 First Quartile = 95% Median = 96% Third Quartile = 97% Number of Observations = 41 Water Year = 2011 First Quartile = 95% Median = 96% Third Quartile = 97% Number of Observations = 41 Water Year = 2011 First Quartile = 95% Median = 96% Third Quartile = 97% Number of Observations = 41 Water Year = 2010 First Quartile = 96% Median = 97% Third Quartile = 98% Number of Observations = 42 Water Year = 2010 First Quartile = 96% Median = 97% Third Quartile = 98% Number of Observations = 42 Water Year = 2010 First Quartile = 96% Median = 97% Third Quartile = 98% Number of Observations = 42 Water Year = 2010 First Quartile = 96% Median = 97% Third Quartile = 98% Number of Observations = 42 Water Year = 2010 First Quartile = 96% Median = 97% Third Quartile = 98% Number of Observations = 42 Water Year = 2010 First Quartile = 96% Median = 97% Third Quartile = 98% Number of Observations = 42 Water Year = 2010 First Quartile = 96% Median = 97% Third Quartile = 98% Number of Observations = 42 Water Year = 2010 First Quartile = 96% Median = 97% Third Quartile = 98% Number of Observations = 42 Y = 1
The SGPlot Procedure

Percent Recovery Statistics for Manganese, unfltd, ICP-OES, recov

Analyte Parm-meth Code Water Year # of
Samples		 25th Pctl 50th Pctl
(Median)		 75th Pctl
Manganese, unfltd, ICP-OES, recov 01055PLA15 2010 42 95.7% 97.0% 98.4%
    2011 41 94.6% 95.5% 96.7%
    2012 42 91.6% 93.5% 94.9%
    2013 42 89.0% 92.6% 93.9%
    2014 85 90.9% 92.0% 93.1%
    2015 39 88.4% 92.2% 94.7%

Hover over boxplot or outliers for additional information
Chart generated 03/27/2025
Charts and data secured from this U.S. Geological Survey (USGS) web page (identified as IBSP) have not received official USGS approval and as such are provisional and subject to revision. The charts and data are released on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use.


- Manganese, unfltd, ICP-OES, recov -
Lab: NWQL, PCode: 01055, MCode: PLO07
Analysis Dates: 05/28/15 through 09/21/24
Open Data Set
Boxplot Description

Water Year = 2024 plotvalue = 110% pctrecov = 110% Water Year = 2024 plotvalue = 130% pctrecov = 131% Water Year = 2024 plotvalue = 91% pctrecov = 91% Water Year = 2023 plotvalue = 92% pctrecov = 92% Water Year = 2022 plotvalue = 94% pctrecov = 94% Water Year = 2022 plotvalue = 94% pctrecov = 94% Water Year = 2021 plotvalue = 89% pctrecov = 89% Water Year = 2021 plotvalue = 85% pctrecov = 85% Water Year = 2021 plotvalue = 84% pctrecov = 84% Water Year = 2021 plotvalue = 83% pctrecov = 83% Water Year = 2020 plotvalue = 107% pctrecov = 107% Water Year = 2020 plotvalue = 97% pctrecov = 97% Water Year = 2020 plotvalue = 96% pctrecov = 96% Water Year = 2019 plotvalue = 107% pctrecov = 107% Water Year = 2019 plotvalue = 96% pctrecov = 96% Water Year = 2017 plotvalue = 97% pctrecov = 97% Water Year = 2016 plotvalue = 107% pctrecov = 107% Water Year = 2024 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 37 Water Year = 2024 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 37 Water Year = 2024 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 37 Water Year = 2024 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 37 Water Year = 2024 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 37 Water Year = 2024 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 37 Water Year = 2024 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 37 Water Year = 2024 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 37 Water Year = 2023 First Quartile = 98% Median = 100% Third Quartile = 101% Number of Observations = 42 Water Year = 2023 First Quartile = 98% Median = 100% Third Quartile = 101% Number of Observations = 42 Water Year = 2023 First Quartile = 98% Median = 100% Third Quartile = 101% Number of Observations = 42 Water Year = 2023 First Quartile = 98% Median = 100% Third Quartile = 101% Number of Observations = 42 Water Year = 2023 First Quartile = 98% Median = 100% Third Quartile = 101% Number of Observations = 42 Water Year = 2023 First Quartile = 98% Median = 100% Third Quartile = 101% Number of Observations = 42 Water Year = 2023 First Quartile = 98% Median = 100% Third Quartile = 101% Number of Observations = 42 Water Year = 2023 First Quartile = 98% Median = 100% Third Quartile = 101% Number of Observations = 42 Water Year = 2022 First Quartile = 100% Median = 103% Third Quartile = 104% Number of Observations = 42 Water Year = 2022 First Quartile = 100% Median = 103% Third Quartile = 104% Number of Observations = 42 Water Year = 2022 First Quartile = 100% Median = 103% Third Quartile = 104% Number of Observations = 42 Water Year = 2022 First Quartile = 100% Median = 103% Third Quartile = 104% Number of Observations = 42 Water Year = 2022 First Quartile = 100% Median = 103% Third Quartile = 104% Number of Observations = 42 Water Year = 2022 First Quartile = 100% Median = 103% Third Quartile = 104% Number of Observations = 42 Water Year = 2022 First Quartile = 100% Median = 103% Third Quartile = 104% Number of Observations = 42 Water Year = 2022 First Quartile = 100% Median = 103% Third Quartile = 104% Number of Observations = 42 Water Year = 2021 First Quartile = 97% Median = 100% Third Quartile = 101% Number of Observations = 42 Water Year = 2021 First Quartile = 97% Median = 100% Third Quartile = 101% Number of Observations = 42 Water Year = 2021 First Quartile = 97% Median = 100% Third Quartile = 101% Number of Observations = 42 Water Year = 2021 First Quartile = 97% Median = 100% Third Quartile = 101% Number of Observations = 42 Water Year = 2021 First Quartile = 97% Median = 100% Third Quartile = 101% Number of Observations = 42 Water Year = 2021 First Quartile = 97% Median = 100% Third Quartile = 101% Number of Observations = 42 Water Year = 2021 First Quartile = 97% Median = 100% Third Quartile = 101% Number of Observations = 42 Water Year = 2021 First Quartile = 97% Median = 100% Third Quartile = 101% Number of Observations = 42 Water Year = 2020 First Quartile = 101% Median = 102% Third Quartile = 103% Number of Observations = 39 Water Year = 2020 First Quartile = 101% Median = 102% Third Quartile = 103% Number of Observations = 39 Water Year = 2020 First Quartile = 101% Median = 102% Third Quartile = 103% Number of Observations = 39 Water Year = 2020 First Quartile = 101% Median = 102% Third Quartile = 103% Number of Observations = 39 Water Year = 2020 First Quartile = 101% Median = 102% Third Quartile = 103% Number of Observations = 39 Water Year = 2020 First Quartile = 101% Median = 102% Third Quartile = 103% Number of Observations = 39 Water Year = 2020 First Quartile = 101% Median = 102% Third Quartile = 103% Number of Observations = 39 Water Year = 2020 First Quartile = 101% Median = 102% Third Quartile = 103% Number of Observations = 39 Water Year = 2019 First Quartile = 101% Median = 102% Third Quartile = 103% Number of Observations = 38 Water Year = 2019 First Quartile = 101% Median = 102% Third Quartile = 103% Number of Observations = 38 Water Year = 2019 First Quartile = 101% Median = 102% Third Quartile = 103% Number of Observations = 38 Water Year = 2019 First Quartile = 101% Median = 102% Third Quartile = 103% Number of Observations = 38 Water Year = 2019 First Quartile = 101% Median = 102% Third Quartile = 103% Number of Observations = 38 Water Year = 2019 First Quartile = 101% Median = 102% Third Quartile = 103% Number of Observations = 38 Water Year = 2019 First Quartile = 101% Median = 102% Third Quartile = 103% Number of Observations = 38 Water Year = 2019 First Quartile = 101% Median = 102% Third Quartile = 103% Number of Observations = 38 Water Year = 2017 First Quartile = 102% Median = 104% Third Quartile = 105% Number of Observations = 42 Water Year = 2017 First Quartile = 102% Median = 104% Third Quartile = 105% Number of Observations = 42 Water Year = 2017 First Quartile = 102% Median = 104% Third Quartile = 105% Number of Observations = 42 Water Year = 2017 First Quartile = 102% Median = 104% Third Quartile = 105% Number of Observations = 42 Water Year = 2017 First Quartile = 102% Median = 104% Third Quartile = 105% Number of Observations = 42 Water Year = 2017 First Quartile = 102% Median = 104% Third Quartile = 105% Number of Observations = 42 Water Year = 2017 First Quartile = 102% Median = 104% Third Quartile = 105% Number of Observations = 42 Water Year = 2017 First Quartile = 102% Median = 104% Third Quartile = 105% Number of Observations = 42 Water Year = 2016 First Quartile = 96% Median = 99% Third Quartile = 100% Number of Observations = 42 Water Year = 2016 First Quartile = 96% Median = 99% Third Quartile = 100% Number of Observations = 42 Water Year = 2016 First Quartile = 96% Median = 99% Third Quartile = 100% Number of Observations = 42 Water Year = 2016 First Quartile = 96% Median = 99% Third Quartile = 100% Number of Observations = 42 Water Year = 2016 First Quartile = 96% Median = 99% Third Quartile = 100% Number of Observations = 42 Water Year = 2016 First Quartile = 96% Median = 99% Third Quartile = 100% Number of Observations = 42 Water Year = 2016 First Quartile = 96% Median = 99% Third Quartile = 100% Number of Observations = 42 Water Year = 2016 First Quartile = 96% Median = 99% Third Quartile = 100% Number of Observations = 42 Water Year = 2015 First Quartile = 94% Median = 96% Third Quartile = 98% Number of Observations = 51 Water Year = 2015 First Quartile = 94% Median = 96% Third Quartile = 98% Number of Observations = 51 Water Year = 2015 First Quartile = 94% Median = 96% Third Quartile = 98% Number of Observations = 51 Water Year = 2015 First Quartile = 94% Median = 96% Third Quartile = 98% Number of Observations = 51 Water Year = 2015 First Quartile = 94% Median = 96% Third Quartile = 98% Number of Observations = 51 Water Year = 2015 First Quartile = 94% Median = 96% Third Quartile = 98% Number of Observations = 51 Water Year = 2015 First Quartile = 94% Median = 96% Third Quartile = 98% Number of Observations = 51 Water Year = 2015 First Quartile = 94% Median = 96% Third Quartile = 98% Number of Observations = 51 Y = 1
The SGPlot Procedure

Percent Recovery Statistics for Manganese, unfltd, ICP-OES, recov

Analyte Parm-meth Code Water Year # of
Samples		 25th Pctl 50th Pctl
(Median)		 75th Pctl
Manganese, unfltd, ICP-OES, recov 01055PLO07 2015 51 93.8% 96.3% 98.2%
    2016 42 96.2% 98.8% 100.2%
    2017 42 101.9% 103.5% 105.1%
    2019 38 101.5% 102.5% 103.5%
    2020 39 101.0% 101.7% 103.3%
    2021 42 97.0% 100.1% 101.4%
    2022 42 100.4% 103.0% 103.6%
    2023 42 97.6% 99.6% 101.2%
    2024 37 99.5% 101.2% 103.2%

Hover over boxplot or outliers for additional information
Chart generated 03/27/2025
Charts and data secured from this U.S. Geological Survey (USGS) web page (identified as IBSP) have not received official USGS approval and as such are provisional and subject to revision. The charts and data are released on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use.


- Mercury, fltd, CVAF -
Lab: NWQL, PCode: 71890, MCode: CV014
Analysis Dates: 10/06/09 through 09/23/24
Open Data Set
Boxplot Description

Water Year = 2022 plotvalue = 85% pctrecov = 85% Water Year = 2015 plotvalue = 123% pctrecov = 123% Water Year = 2015 plotvalue = 83% pctrecov = 83% Water Year = 2015 plotvalue = 73% pctrecov = 73% Water Year = 2011 plotvalue = 70% pctrecov = 57% Water Year = 2010 plotvalue = 130% pctrecov = 156% Water Year = 2010 plotvalue = 130% pctrecov = 799% Water Year = 2010 plotvalue = 130% pctrecov = 131% Water Year = 2010 plotvalue = 72% pctrecov = 72% Water Year = 2010 plotvalue = 70% pctrecov = 69% Water Year = 2010 plotvalue = 70% pctrecov = 66% Water Year = 2010 plotvalue = 70% pctrecov = 68% Water Year = 2024 First Quartile = 100% Median = 110% Third Quartile = 114% Number of Observations = 19 Water Year = 2024 First Quartile = 100% Median = 110% Third Quartile = 114% Number of Observations = 19 Water Year = 2024 First Quartile = 100% Median = 110% Third Quartile = 114% Number of Observations = 19 Water Year = 2024 First Quartile = 100% Median = 110% Third Quartile = 114% Number of Observations = 19 Water Year = 2024 First Quartile = 100% Median = 110% Third Quartile = 114% Number of Observations = 19 Water Year = 2024 First Quartile = 100% Median = 110% Third Quartile = 114% Number of Observations = 19 Water Year = 2024 First Quartile = 100% Median = 110% Third Quartile = 114% Number of Observations = 19 Water Year = 2024 First Quartile = 100% Median = 110% Third Quartile = 114% Number of Observations = 19 Water Year = 2023 First Quartile = 96% Median = 101% Third Quartile = 104% Number of Observations = 24 Water Year = 2023 First Quartile = 96% Median = 101% Third Quartile = 104% Number of Observations = 24 Water Year = 2023 First Quartile = 96% Median = 101% Third Quartile = 104% Number of Observations = 24 Water Year = 2023 First Quartile = 96% Median = 101% Third Quartile = 104% Number of Observations = 24 Water Year = 2023 First Quartile = 96% Median = 101% Third Quartile = 104% Number of Observations = 24 Water Year = 2023 First Quartile = 96% Median = 101% Third Quartile = 104% Number of Observations = 24 Water Year = 2023 First Quartile = 96% Median = 101% Third Quartile = 104% Number of Observations = 24 Water Year = 2023 First Quartile = 96% Median = 101% Third Quartile = 104% Number of Observations = 24 Water Year = 2022 First Quartile = 101% Median = 105% Third Quartile = 109% Number of Observations = 22 Water Year = 2022 First Quartile = 101% Median = 105% Third Quartile = 109% Number of Observations = 22 Water Year = 2022 First Quartile = 101% Median = 105% Third Quartile = 109% Number of Observations = 22 Water Year = 2022 First Quartile = 101% Median = 105% Third Quartile = 109% Number of Observations = 22 Water Year = 2022 First Quartile = 101% Median = 105% Third Quartile = 109% Number of Observations = 22 Water Year = 2022 First Quartile = 101% Median = 105% Third Quartile = 109% Number of Observations = 22 Water Year = 2022 First Quartile = 101% Median = 105% Third Quartile = 109% Number of Observations = 22 Water Year = 2022 First Quartile = 101% Median = 105% Third Quartile = 109% Number of Observations = 22 Water Year = 2021 First Quartile = 95% Median = 100% Third Quartile = 111% Number of Observations = 23 Water Year = 2021 First Quartile = 95% Median = 100% Third Quartile = 111% Number of Observations = 23 Water Year = 2021 First Quartile = 95% Median = 100% Third Quartile = 111% Number of Observations = 23 Water Year = 2021 First Quartile = 95% Median = 100% Third Quartile = 111% Number of Observations = 23 Water Year = 2021 First Quartile = 95% Median = 100% Third Quartile = 111% Number of Observations = 23 Water Year = 2021 First Quartile = 95% Median = 100% Third Quartile = 111% Number of Observations = 23 Water Year = 2021 First Quartile = 95% Median = 100% Third Quartile = 111% Number of Observations = 23 Water Year = 2021 First Quartile = 95% Median = 100% Third Quartile = 111% Number of Observations = 23 Water Year = 2020 First Quartile = 94% Median = 108% Third Quartile = 130% Number of Observations = 10 Water Year = 2020 First Quartile = 94% Median = 108% Third Quartile = 130% Number of Observations = 10 Water Year = 2020 First Quartile = 94% Median = 108% Third Quartile = 130% Number of Observations = 10 Water Year = 2020 First Quartile = 94% Median = 108% Third Quartile = 130% Number of Observations = 10 Water Year = 2020 First Quartile = 94% Median = 108% Third Quartile = 130% Number of Observations = 10 Water Year = 2020 First Quartile = 94% Median = 108% Third Quartile = 130% Number of Observations = 10 Water Year = 2020 First Quartile = 94% Median = 108% Third Quartile = 130% Number of Observations = 10 Water Year = 2020 First Quartile = 94% Median = 108% Third Quartile = 130% Number of Observations = 10 Water Year = 2019 First Quartile = 86% Median = 89% Third Quartile = 111% Number of Observations = 12 Water Year = 2019 First Quartile = 86% Median = 89% Third Quartile = 111% Number of Observations = 12 Water Year = 2019 First Quartile = 86% Median = 89% Third Quartile = 111% Number of Observations = 12 Water Year = 2019 First Quartile = 86% Median = 89% Third Quartile = 111% Number of Observations = 12 Water Year = 2019 First Quartile = 86% Median = 89% Third Quartile = 111% Number of Observations = 12 Water Year = 2019 First Quartile = 86% Median = 89% Third Quartile = 111% Number of Observations = 12 Water Year = 2019 First Quartile = 86% Median = 89% Third Quartile = 111% Number of Observations = 12 Water Year = 2019 First Quartile = 86% Median = 89% Third Quartile = 111% Number of Observations = 12 Water Year = 2017 First Quartile = 94% Median = 99% Third Quartile = 106% Number of Observations = 24 Water Year = 2017 First Quartile = 94% Median = 99% Third Quartile = 106% Number of Observations = 24 Water Year = 2017 First Quartile = 94% Median = 99% Third Quartile = 106% Number of Observations = 24 Water Year = 2017 First Quartile = 94% Median = 99% Third Quartile = 106% Number of Observations = 24 Water Year = 2017 First Quartile = 94% Median = 99% Third Quartile = 106% Number of Observations = 24 Water Year = 2017 First Quartile = 94% Median = 99% Third Quartile = 106% Number of Observations = 24 Water Year = 2017 First Quartile = 94% Median = 99% Third Quartile = 106% Number of Observations = 24 Water Year = 2017 First Quartile = 94% Median = 99% Third Quartile = 106% Number of Observations = 24 Water Year = 2016 First Quartile = 99% Median = 104% Third Quartile = 109% Number of Observations = 48 Water Year = 2016 First Quartile = 99% Median = 104% Third Quartile = 109% Number of Observations = 48 Water Year = 2016 First Quartile = 99% Median = 104% Third Quartile = 109% Number of Observations = 48 Water Year = 2016 First Quartile = 99% Median = 104% Third Quartile = 109% Number of Observations = 48 Water Year = 2016 First Quartile = 99% Median = 104% Third Quartile = 109% Number of Observations = 48 Water Year = 2016 First Quartile = 99% Median = 104% Third Quartile = 109% Number of Observations = 48 Water Year = 2016 First Quartile = 99% Median = 104% Third Quartile = 109% Number of Observations = 48 Water Year = 2016 First Quartile = 99% Median = 104% Third Quartile = 109% Number of Observations = 48 Water Year = 2015 First Quartile = 97% Median = 102% Third Quartile = 104% Number of Observations = 48 Water Year = 2015 First Quartile = 97% Median = 102% Third Quartile = 104% Number of Observations = 48 Water Year = 2015 First Quartile = 97% Median = 102% Third Quartile = 104% Number of Observations = 48 Water Year = 2015 First Quartile = 97% Median = 102% Third Quartile = 104% Number of Observations = 48 Water Year = 2015 First Quartile = 97% Median = 102% Third Quartile = 104% Number of Observations = 48 Water Year = 2015 First Quartile = 97% Median = 102% Third Quartile = 104% Number of Observations = 48 Water Year = 2015 First Quartile = 97% Median = 102% Third Quartile = 104% Number of Observations = 48 Water Year = 2015 First Quartile = 97% Median = 102% Third Quartile = 104% Number of Observations = 48 Water Year = 2014 First Quartile = 94% Median = 103% Third Quartile = 111% Number of Observations = 45 Water Year = 2014 First Quartile = 94% Median = 103% Third Quartile = 111% Number of Observations = 45 Water Year = 2014 First Quartile = 94% Median = 103% Third Quartile = 111% Number of Observations = 45 Water Year = 2014 First Quartile = 94% Median = 103% Third Quartile = 111% Number of Observations = 45 Water Year = 2014 First Quartile = 94% Median = 103% Third Quartile = 111% Number of Observations = 45 Water Year = 2014 First Quartile = 94% Median = 103% Third Quartile = 111% Number of Observations = 45 Water Year = 2014 First Quartile = 94% Median = 103% Third Quartile = 111% Number of Observations = 45 Water Year = 2014 First Quartile = 94% Median = 103% Third Quartile = 111% Number of Observations = 45 Water Year = 2013 First Quartile = 90% Median = 98% Third Quartile = 103% Number of Observations = 48 Water Year = 2013 First Quartile = 90% Median = 98% Third Quartile = 103% Number of Observations = 48 Water Year = 2013 First Quartile = 90% Median = 98% Third Quartile = 103% Number of Observations = 48 Water Year = 2013 First Quartile = 90% Median = 98% Third Quartile = 103% Number of Observations = 48 Water Year = 2013 First Quartile = 90% Median = 98% Third Quartile = 103% Number of Observations = 48 Water Year = 2013 First Quartile = 90% Median = 98% Third Quartile = 103% Number of Observations = 48 Water Year = 2013 First Quartile = 90% Median = 98% Third Quartile = 103% Number of Observations = 48 Water Year = 2013 First Quartile = 90% Median = 98% Third Quartile = 103% Number of Observations = 48 Water Year = 2012 First Quartile = 96% Median = 102% Third Quartile = 109% Number of Observations = 48 Water Year = 2012 First Quartile = 96% Median = 102% Third Quartile = 109% Number of Observations = 48 Water Year = 2012 First Quartile = 96% Median = 102% Third Quartile = 109% Number of Observations = 48 Water Year = 2012 First Quartile = 96% Median = 102% Third Quartile = 109% Number of Observations = 48 Water Year = 2012 First Quartile = 96% Median = 102% Third Quartile = 109% Number of Observations = 48 Water Year = 2012 First Quartile = 96% Median = 102% Third Quartile = 109% Number of Observations = 48 Water Year = 2012 First Quartile = 96% Median = 102% Third Quartile = 109% Number of Observations = 48 Water Year = 2012 First Quartile = 96% Median = 102% Third Quartile = 109% Number of Observations = 48 Water Year = 2011 First Quartile = 98% Median = 105% Third Quartile = 111% Number of Observations = 82 Water Year = 2011 First Quartile = 98% Median = 105% Third Quartile = 111% Number of Observations = 82 Water Year = 2011 First Quartile = 98% Median = 105% Third Quartile = 111% Number of Observations = 82 Water Year = 2011 First Quartile = 98% Median = 105% Third Quartile = 111% Number of Observations = 82 Water Year = 2011 First Quartile = 98% Median = 105% Third Quartile = 111% Number of Observations = 82 Water Year = 2011 First Quartile = 98% Median = 105% Third Quartile = 111% Number of Observations = 82 Water Year = 2011 First Quartile = 98% Median = 105% Third Quartile = 111% Number of Observations = 82 Water Year = 2011 First Quartile = 98% Median = 105% Third Quartile = 111% Number of Observations = 82 Water Year = 2010 First Quartile = 94% Median = 102% Third Quartile = 107% Number of Observations = 80 Water Year = 2010 First Quartile = 94% Median = 102% Third Quartile = 107% Number of Observations = 80 Water Year = 2010 First Quartile = 94% Median = 102% Third Quartile = 107% Number of Observations = 80 Water Year = 2010 First Quartile = 94% Median = 102% Third Quartile = 107% Number of Observations = 80 Water Year = 2010 First Quartile = 94% Median = 102% Third Quartile = 107% Number of Observations = 80 Water Year = 2010 First Quartile = 94% Median = 102% Third Quartile = 107% Number of Observations = 80 Water Year = 2010 First Quartile = 94% Median = 102% Third Quartile = 107% Number of Observations = 80 Water Year = 2010 First Quartile = 94% Median = 102% Third Quartile = 107% Number of Observations = 80 Water Year = 2009 First Quartile = 77% Median = 84% Third Quartile = 94% Number of Observations = 10 Water Year = 2009 First Quartile = 77% Median = 84% Third Quartile = 94% Number of Observations = 10 Water Year = 2009 First Quartile = 77% Median = 84% Third Quartile = 94% Number of Observations = 10 Water Year = 2009 First Quartile = 77% Median = 84% Third Quartile = 94% Number of Observations = 10 Water Year = 2009 First Quartile = 77% Median = 84% Third Quartile = 94% Number of Observations = 10 Water Year = 2009 First Quartile = 77% Median = 84% Third Quartile = 94% Number of Observations = 10 Water Year = 2009 First Quartile = 77% Median = 84% Third Quartile = 94% Number of Observations = 10 Water Year = 2009 First Quartile = 77% Median = 84% Third Quartile = 94% Number of Observations = 10 Y = 1
The SGPlot Procedure

Percent Recovery Statistics for Mercury, fltd, CVAF

Analyte Parm-meth Code Water Year # of
Samples		 25th Pctl 50th Pctl
(Median)		 75th Pctl
Mercury, fltd, CVAF 71890CV014 2009 10 77.2% 84.3% 94.5%
    2010 80 93.8% 101.9% 107.5%
    2011 82 97.6% 105.5% 110.6%
    2012 48 96.0% 102.2% 109.3%
    2013 48 90.5% 97.5% 103.3%
    2014 45 94.4% 103.1% 110.8%
    2015 48 97.1% 101.6% 104.5%
    2016 48 98.9% 104.2% 109.3%
    2017 24 94.0% 99.0% 105.9%
    2019 12 85.9% 88.8% 110.6%
    2020 10 93.9% 108.1% 101E3%
    2021 23 94.7% 99.9% 110.8%
    2022 22 100.8% 105.0% 108.9%
    2023 24 96.2% 100.8% 103.9%
    2024 19 99.6% 110.0% 114.0%

Hover over boxplot or outliers for additional information
Chart generated 03/27/2025
Charts and data secured from this U.S. Geological Survey (USGS) web page (identified as IBSP) have not received official USGS approval and as such are provisional and subject to revision. The charts and data are released on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use.


- Mercury, unfltd, CVAF -
Lab: NWQL, PCode: 71900, MCode: CV018
Analysis Dates: 10/07/09 through 09/16/24
Open Data Set
Boxplot Description

Water Year = 2024 plotvalue = 130% pctrecov = 185% Water Year = 2024 plotvalue = 70% pctrecov = 18% Water Year = 2022 plotvalue = 124% pctrecov = 124% Water Year = 2021 plotvalue = 121% pctrecov = 121% Water Year = 2017 plotvalue = 123% pctrecov = 123% Water Year = 2017 plotvalue = 127% pctrecov = 127% Water Year = 2013 plotvalue = 118% pctrecov = 118% Water Year = 2013 plotvalue = 123% pctrecov = 123% Water Year = 2013 plotvalue = 73% pctrecov = 73% Water Year = 2011 plotvalue = 129% pctrecov = 129% Water Year = 2009 plotvalue = 130% pctrecov = 176% Water Year = 2009 plotvalue = 130% pctrecov = 151% Water Year = 2009 plotvalue = 130% pctrecov = 180% Water Year = 2024 First Quartile = 99% Median = 100% Third Quartile = 108% Number of Observations = 19 Water Year = 2024 First Quartile = 99% Median = 100% Third Quartile = 108% Number of Observations = 19 Water Year = 2024 First Quartile = 99% Median = 100% Third Quartile = 108% Number of Observations = 19 Water Year = 2024 First Quartile = 99% Median = 100% Third Quartile = 108% Number of Observations = 19 Water Year = 2024 First Quartile = 99% Median = 100% Third Quartile = 108% Number of Observations = 19 Water Year = 2024 First Quartile = 99% Median = 100% Third Quartile = 108% Number of Observations = 19 Water Year = 2024 First Quartile = 99% Median = 100% Third Quartile = 108% Number of Observations = 19 Water Year = 2024 First Quartile = 99% Median = 100% Third Quartile = 108% Number of Observations = 19 Water Year = 2023 First Quartile = 93% Median = 99% Third Quartile = 109% Number of Observations = 24 Water Year = 2023 First Quartile = 93% Median = 99% Third Quartile = 109% Number of Observations = 24 Water Year = 2023 First Quartile = 93% Median = 99% Third Quartile = 109% Number of Observations = 24 Water Year = 2023 First Quartile = 93% Median = 99% Third Quartile = 109% Number of Observations = 24 Water Year = 2023 First Quartile = 93% Median = 99% Third Quartile = 109% Number of Observations = 24 Water Year = 2023 First Quartile = 93% Median = 99% Third Quartile = 109% Number of Observations = 24 Water Year = 2023 First Quartile = 93% Median = 99% Third Quartile = 109% Number of Observations = 24 Water Year = 2023 First Quartile = 93% Median = 99% Third Quartile = 109% Number of Observations = 24 Water Year = 2022 First Quartile = 101% Median = 103% Third Quartile = 109% Number of Observations = 22 Water Year = 2022 First Quartile = 101% Median = 103% Third Quartile = 109% Number of Observations = 22 Water Year = 2022 First Quartile = 101% Median = 103% Third Quartile = 109% Number of Observations = 22 Water Year = 2022 First Quartile = 101% Median = 103% Third Quartile = 109% Number of Observations = 22 Water Year = 2022 First Quartile = 101% Median = 103% Third Quartile = 109% Number of Observations = 22 Water Year = 2022 First Quartile = 101% Median = 103% Third Quartile = 109% Number of Observations = 22 Water Year = 2022 First Quartile = 101% Median = 103% Third Quartile = 109% Number of Observations = 22 Water Year = 2022 First Quartile = 101% Median = 103% Third Quartile = 109% Number of Observations = 22 Water Year = 2021 First Quartile = 91% Median = 97% Third Quartile = 103% Number of Observations = 24 Water Year = 2021 First Quartile = 91% Median = 97% Third Quartile = 103% Number of Observations = 24 Water Year = 2021 First Quartile = 91% Median = 97% Third Quartile = 103% Number of Observations = 24 Water Year = 2021 First Quartile = 91% Median = 97% Third Quartile = 103% Number of Observations = 24 Water Year = 2021 First Quartile = 91% Median = 97% Third Quartile = 103% Number of Observations = 24 Water Year = 2021 First Quartile = 91% Median = 97% Third Quartile = 103% Number of Observations = 24 Water Year = 2021 First Quartile = 91% Median = 97% Third Quartile = 103% Number of Observations = 24 Water Year = 2021 First Quartile = 91% Median = 97% Third Quartile = 103% Number of Observations = 24 Water Year = 2020 First Quartile = 100% Median = 105% Third Quartile = 130% Number of Observations = 10 Water Year = 2020 First Quartile = 100% Median = 105% Third Quartile = 130% Number of Observations = 10 Water Year = 2020 First Quartile = 100% Median = 105% Third Quartile = 130% Number of Observations = 10 Water Year = 2020 First Quartile = 100% Median = 105% Third Quartile = 130% Number of Observations = 10 Water Year = 2020 First Quartile = 100% Median = 105% Third Quartile = 130% Number of Observations = 10 Water Year = 2020 First Quartile = 100% Median = 105% Third Quartile = 130% Number of Observations = 10 Water Year = 2020 First Quartile = 100% Median = 105% Third Quartile = 130% Number of Observations = 10 Water Year = 2020 First Quartile = 100% Median = 105% Third Quartile = 130% Number of Observations = 10 Water Year = 2019 First Quartile = 85% Median = 90% Third Quartile = 110% Number of Observations = 12 Water Year = 2019 First Quartile = 85% Median = 90% Third Quartile = 110% Number of Observations = 12 Water Year = 2019 First Quartile = 85% Median = 90% Third Quartile = 110% Number of Observations = 12 Water Year = 2019 First Quartile = 85% Median = 90% Third Quartile = 110% Number of Observations = 12 Water Year = 2019 First Quartile = 85% Median = 90% Third Quartile = 110% Number of Observations = 12 Water Year = 2019 First Quartile = 85% Median = 90% Third Quartile = 110% Number of Observations = 12 Water Year = 2019 First Quartile = 85% Median = 90% Third Quartile = 110% Number of Observations = 12 Water Year = 2019 First Quartile = 85% Median = 90% Third Quartile = 110% Number of Observations = 12 Water Year = 2017 First Quartile = 98% Median = 101% Third Quartile = 107% Number of Observations = 24 Water Year = 2017 First Quartile = 98% Median = 101% Third Quartile = 107% Number of Observations = 24 Water Year = 2017 First Quartile = 98% Median = 101% Third Quartile = 107% Number of Observations = 24 Water Year = 2017 First Quartile = 98% Median = 101% Third Quartile = 107% Number of Observations = 24 Water Year = 2017 First Quartile = 98% Median = 101% Third Quartile = 107% Number of Observations = 24 Water Year = 2017 First Quartile = 98% Median = 101% Third Quartile = 107% Number of Observations = 24 Water Year = 2017 First Quartile = 98% Median = 101% Third Quartile = 107% Number of Observations = 24 Water Year = 2017 First Quartile = 98% Median = 101% Third Quartile = 107% Number of Observations = 24 Water Year = 2016 First Quartile = 100% Median = 107% Third Quartile = 113% Number of Observations = 48 Water Year = 2016 First Quartile = 100% Median = 107% Third Quartile = 113% Number of Observations = 48 Water Year = 2016 First Quartile = 100% Median = 107% Third Quartile = 113% Number of Observations = 48 Water Year = 2016 First Quartile = 100% Median = 107% Third Quartile = 113% Number of Observations = 48 Water Year = 2016 First Quartile = 100% Median = 107% Third Quartile = 113% Number of Observations = 48 Water Year = 2016 First Quartile = 100% Median = 107% Third Quartile = 113% Number of Observations = 48 Water Year = 2016 First Quartile = 100% Median = 107% Third Quartile = 113% Number of Observations = 48 Water Year = 2016 First Quartile = 100% Median = 107% Third Quartile = 113% Number of Observations = 48 Water Year = 2015 First Quartile = 97% Median = 101% Third Quartile = 114% Number of Observations = 48 Water Year = 2015 First Quartile = 97% Median = 101% Third Quartile = 114% Number of Observations = 48 Water Year = 2015 First Quartile = 97% Median = 101% Third Quartile = 114% Number of Observations = 48 Water Year = 2015 First Quartile = 97% Median = 101% Third Quartile = 114% Number of Observations = 48 Water Year = 2015 First Quartile = 97% Median = 101% Third Quartile = 114% Number of Observations = 48 Water Year = 2015 First Quartile = 97% Median = 101% Third Quartile = 114% Number of Observations = 48 Water Year = 2015 First Quartile = 97% Median = 101% Third Quartile = 114% Number of Observations = 48 Water Year = 2015 First Quartile = 97% Median = 101% Third Quartile = 114% Number of Observations = 48 Water Year = 2014 First Quartile = 93% Median = 102% Third Quartile = 109% Number of Observations = 45 Water Year = 2014 First Quartile = 93% Median = 102% Third Quartile = 109% Number of Observations = 45 Water Year = 2014 First Quartile = 93% Median = 102% Third Quartile = 109% Number of Observations = 45 Water Year = 2014 First Quartile = 93% Median = 102% Third Quartile = 109% Number of Observations = 45 Water Year = 2014 First Quartile = 93% Median = 102% Third Quartile = 109% Number of Observations = 45 Water Year = 2014 First Quartile = 93% Median = 102% Third Quartile = 109% Number of Observations = 45 Water Year = 2014 First Quartile = 93% Median = 102% Third Quartile = 109% Number of Observations = 45 Water Year = 2014 First Quartile = 93% Median = 102% Third Quartile = 109% Number of Observations = 45 Water Year = 2013 First Quartile = 91% Median = 95% Third Quartile = 101% Number of Observations = 60 Water Year = 2013 First Quartile = 91% Median = 95% Third Quartile = 101% Number of Observations = 60 Water Year = 2013 First Quartile = 91% Median = 95% Third Quartile = 101% Number of Observations = 60 Water Year = 2013 First Quartile = 91% Median = 95% Third Quartile = 101% Number of Observations = 60 Water Year = 2013 First Quartile = 91% Median = 95% Third Quartile = 101% Number of Observations = 60 Water Year = 2013 First Quartile = 91% Median = 95% Third Quartile = 101% Number of Observations = 60 Water Year = 2013 First Quartile = 91% Median = 95% Third Quartile = 101% Number of Observations = 60 Water Year = 2013 First Quartile = 91% Median = 95% Third Quartile = 101% Number of Observations = 60 Water Year = 2012 First Quartile = 96% Median = 104% Third Quartile = 112% Number of Observations = 84 Water Year = 2012 First Quartile = 96% Median = 104% Third Quartile = 112% Number of Observations = 84 Water Year = 2012 First Quartile = 96% Median = 104% Third Quartile = 112% Number of Observations = 84 Water Year = 2012 First Quartile = 96% Median = 104% Third Quartile = 112% Number of Observations = 84 Water Year = 2012 First Quartile = 96% Median = 104% Third Quartile = 112% Number of Observations = 84 Water Year = 2012 First Quartile = 96% Median = 104% Third Quartile = 112% Number of Observations = 84 Water Year = 2012 First Quartile = 96% Median = 104% Third Quartile = 112% Number of Observations = 84 Water Year = 2012 First Quartile = 96% Median = 104% Third Quartile = 112% Number of Observations = 84 Water Year = 2011 First Quartile = 102% Median = 108% Third Quartile = 113% Number of Observations = 83 Water Year = 2011 First Quartile = 102% Median = 108% Third Quartile = 113% Number of Observations = 83 Water Year = 2011 First Quartile = 102% Median = 108% Third Quartile = 113% Number of Observations = 83 Water Year = 2011 First Quartile = 102% Median = 108% Third Quartile = 113% Number of Observations = 83 Water Year = 2011 First Quartile = 102% Median = 108% Third Quartile = 113% Number of Observations = 83 Water Year = 2011 First Quartile = 102% Median = 108% Third Quartile = 113% Number of Observations = 83 Water Year = 2011 First Quartile = 102% Median = 108% Third Quartile = 113% Number of Observations = 83 Water Year = 2011 First Quartile = 102% Median = 108% Third Quartile = 113% Number of Observations = 83 Water Year = 2010 First Quartile = 92% Median = 102% Third Quartile = 109% Number of Observations = 80 Water Year = 2010 First Quartile = 92% Median = 102% Third Quartile = 109% Number of Observations = 80 Water Year = 2010 First Quartile = 92% Median = 102% Third Quartile = 109% Number of Observations = 80 Water Year = 2010 First Quartile = 92% Median = 102% Third Quartile = 109% Number of Observations = 80 Water Year = 2010 First Quartile = 92% Median = 102% Third Quartile = 109% Number of Observations = 80 Water Year = 2010 First Quartile = 92% Median = 102% Third Quartile = 109% Number of Observations = 80 Water Year = 2010 First Quartile = 92% Median = 102% Third Quartile = 109% Number of Observations = 80 Water Year = 2010 First Quartile = 92% Median = 102% Third Quartile = 109% Number of Observations = 80 Water Year = 2009 First Quartile = 88% Median = 97% Third Quartile = 103% Number of Observations = 28 Water Year = 2009 First Quartile = 88% Median = 97% Third Quartile = 103% Number of Observations = 28 Water Year = 2009 First Quartile = 88% Median = 97% Third Quartile = 103% Number of Observations = 28 Water Year = 2009 First Quartile = 88% Median = 97% Third Quartile = 103% Number of Observations = 28 Water Year = 2009 First Quartile = 88% Median = 97% Third Quartile = 103% Number of Observations = 28 Water Year = 2009 First Quartile = 88% Median = 97% Third Quartile = 103% Number of Observations = 28 Water Year = 2009 First Quartile = 88% Median = 97% Third Quartile = 103% Number of Observations = 28 Water Year = 2009 First Quartile = 88% Median = 97% Third Quartile = 103% Number of Observations = 28 Y = 1
The SGPlot Procedure

Percent Recovery Statistics for Mercury, unfltd, CVAF

Analyte Parm-meth Code Water Year # of
Samples		 25th Pctl 50th Pctl
(Median)		 75th Pctl
Mercury, unfltd, CVAF 71900CV018 2009 28 87.9% 96.7% 102.9%
    2010 80 92.0% 101.9% 109.0%
    2011 83 102.4% 108.2% 113.1%
    2012 84 95.8% 104.1% 111.8%
    2013 60 91.2% 95.5% 101.0%
    2014 45 92.9% 101.8% 108.7%
    2015 48 96.5% 100.7% 114.4%
    2016 48 99.5% 106.8% 113.5%
    2017 24 98.0% 100.8% 106.8%
    2019 12 85.1% 90.0% 109.8%
    2020 10 100.1% 104.8% 92100%
    2021 24 90.8% 96.7% 102.9%
    2022 22 101.3% 103.3% 108.6%
    2023 24 92.6% 99.2% 109.1%
    2024 19 98.7% 100.3% 108.0%

Hover over boxplot or outliers for additional information
Chart generated 03/27/2025
Charts and data secured from this U.S. Geological Survey (USGS) web page (identified as IBSP) have not received official USGS approval and as such are provisional and subject to revision. The charts and data are released on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use.


- Molybdenum, fltd, ICP-MS -
Lab: NWQL, PCode: 01060, MCode: PLM43
Analysis Dates: 10/09/09 through 09/28/24
Open Data Set
Boxplot Description

Water Year = 2024 plotvalue = 100% pctrecov = 100% Water Year = 2024 plotvalue = 100% pctrecov = 100% Water Year = 2024 plotvalue = 100% pctrecov = 100% Water Year = 2024 plotvalue = 99% pctrecov = 99% Water Year = 2024 plotvalue = 98% pctrecov = 98% Water Year = 2024 plotvalue = 94% pctrecov = 94% Water Year = 2024 plotvalue = 92% pctrecov = 92% Water Year = 2024 plotvalue = 92% pctrecov = 92% Water Year = 2023 plotvalue = 116% pctrecov = 116% Water Year = 2023 plotvalue = 116% pctrecov = 116% Water Year = 2023 plotvalue = 118% pctrecov = 118% Water Year = 2023 plotvalue = 119% pctrecov = 119% Water Year = 2023 plotvalue = 121% pctrecov = 121% Water Year = 2023 plotvalue = 127% pctrecov = 127% Water Year = 2022 plotvalue = 125% pctrecov = 125% Water Year = 2021 plotvalue = 120% pctrecov = 120% Water Year = 2021 plotvalue = 120% pctrecov = 120% Water Year = 2021 plotvalue = 130% pctrecov = 132% Water Year = 2020 plotvalue = 115% pctrecov = 115% Water Year = 2020 plotvalue = 115% pctrecov = 115% Water Year = 2020 plotvalue = 117% pctrecov = 117% Water Year = 2020 plotvalue = 130% pctrecov = 151% Water Year = 2020 plotvalue = 130% pctrecov = 187% Water Year = 2020 plotvalue = 130% pctrecov = 152% Water Year = 2019 plotvalue = 114% pctrecov = 114% Water Year = 2019 plotvalue = 70% pctrecov = 25% Water Year = 2017 plotvalue = 115% pctrecov = 115% Water Year = 2017 plotvalue = 116% pctrecov = 116% Water Year = 2017 plotvalue = 116% pctrecov = 116% Water Year = 2017 plotvalue = 117% pctrecov = 117% Water Year = 2016 plotvalue = 113% pctrecov = 113% Water Year = 2016 plotvalue = 113% pctrecov = 113% Water Year = 2016 plotvalue = 114% pctrecov = 114% Water Year = 2016 plotvalue = 115% pctrecov = 115% Water Year = 2016 plotvalue = 130% pctrecov = 279% Water Year = 2016 plotvalue = 90% pctrecov = 90% Water Year = 2016 plotvalue = 70% pctrecov = 5% Water Year = 2016 plotvalue = 70% pctrecov = 13% Water Year = 2015 plotvalue = 113% pctrecov = 113% Water Year = 2015 plotvalue = 70% pctrecov = 11% Water Year = 2014 plotvalue = 130% pctrecov = 175% Water Year = 2014 plotvalue = 70% pctrecov = 11% Water Year = 2014 plotvalue = 70% pctrecov = 15% Water Year = 2013 plotvalue = 117% pctrecov = 117% Water Year = 2013 plotvalue = 93% pctrecov = 93% Water Year = 2012 plotvalue = 114% pctrecov = 114% Water Year = 2012 plotvalue = 117% pctrecov = 117% Water Year = 2012 plotvalue = 121% pctrecov = 121% Water Year = 2012 plotvalue = 93% pctrecov = 93% Water Year = 2012 plotvalue = 70% pctrecov = 5% Water Year = 2012 plotvalue = 70% pctrecov = 1% Water Year = 2011 plotvalue = 130% pctrecov = 368% Water Year = 2010 plotvalue = 114% pctrecov = 114% Water Year = 2010 plotvalue = 115% pctrecov = 115% Water Year = 2010 plotvalue = 116% pctrecov = 116% Water Year = 2010 plotvalue = 130% pctrecov = 130% Water Year = 2024 First Quartile = 109% Median = 110% Third Quartile = 113% Number of Observations = 73 Water Year = 2024 First Quartile = 109% Median = 110% Third Quartile = 113% Number of Observations = 73 Water Year = 2024 First Quartile = 109% Median = 110% Third Quartile = 113% Number of Observations = 73 Water Year = 2024 First Quartile = 109% Median = 110% Third Quartile = 113% Number of Observations = 73 Water Year = 2024 First Quartile = 109% Median = 110% Third Quartile = 113% Number of Observations = 73 Water Year = 2024 First Quartile = 109% Median = 110% Third Quartile = 113% Number of Observations = 73 Water Year = 2024 First Quartile = 109% Median = 110% Third Quartile = 113% Number of Observations = 73 Water Year = 2024 First Quartile = 109% Median = 110% Third Quartile = 113% Number of Observations = 73 Water Year = 2023 First Quartile = 104% Median = 106% Third Quartile = 109% Number of Observations = 89 Water Year = 2023 First Quartile = 104% Median = 106% Third Quartile = 109% Number of Observations = 89 Water Year = 2023 First Quartile = 104% Median = 106% Third Quartile = 109% Number of Observations = 89 Water Year = 2023 First Quartile = 104% Median = 106% Third Quartile = 109% Number of Observations = 89 Water Year = 2023 First Quartile = 104% Median = 106% Third Quartile = 109% Number of Observations = 89 Water Year = 2023 First Quartile = 104% Median = 106% Third Quartile = 109% Number of Observations = 89 Water Year = 2023 First Quartile = 104% Median = 106% Third Quartile = 109% Number of Observations = 89 Water Year = 2023 First Quartile = 104% Median = 106% Third Quartile = 109% Number of Observations = 89 Water Year = 2022 First Quartile = 103% Median = 106% Third Quartile = 111% Number of Observations = 89 Water Year = 2022 First Quartile = 103% Median = 106% Third Quartile = 111% Number of Observations = 89 Water Year = 2022 First Quartile = 103% Median = 106% Third Quartile = 111% Number of Observations = 89 Water Year = 2022 First Quartile = 103% Median = 106% Third Quartile = 111% Number of Observations = 89 Water Year = 2022 First Quartile = 103% Median = 106% Third Quartile = 111% Number of Observations = 89 Water Year = 2022 First Quartile = 103% Median = 106% Third Quartile = 111% Number of Observations = 89 Water Year = 2022 First Quartile = 103% Median = 106% Third Quartile = 111% Number of Observations = 89 Water Year = 2022 First Quartile = 103% Median = 106% Third Quartile = 111% Number of Observations = 89 Water Year = 2021 First Quartile = 100% Median = 104% Third Quartile = 106% Number of Observations = 90 Water Year = 2021 First Quartile = 100% Median = 104% Third Quartile = 106% Number of Observations = 90 Water Year = 2021 First Quartile = 100% Median = 104% Third Quartile = 106% Number of Observations = 90 Water Year = 2021 First Quartile = 100% Median = 104% Third Quartile = 106% Number of Observations = 90 Water Year = 2021 First Quartile = 100% Median = 104% Third Quartile = 106% Number of Observations = 90 Water Year = 2021 First Quartile = 100% Median = 104% Third Quartile = 106% Number of Observations = 90 Water Year = 2021 First Quartile = 100% Median = 104% Third Quartile = 106% Number of Observations = 90 Water Year = 2021 First Quartile = 100% Median = 104% Third Quartile = 106% Number of Observations = 90 Water Year = 2020 First Quartile = 98% Median = 102% Third Quartile = 105% Number of Observations = 86 Water Year = 2020 First Quartile = 98% Median = 102% Third Quartile = 105% Number of Observations = 86 Water Year = 2020 First Quartile = 98% Median = 102% Third Quartile = 105% Number of Observations = 86 Water Year = 2020 First Quartile = 98% Median = 102% Third Quartile = 105% Number of Observations = 86 Water Year = 2020 First Quartile = 98% Median = 102% Third Quartile = 105% Number of Observations = 86 Water Year = 2020 First Quartile = 98% Median = 102% Third Quartile = 105% Number of Observations = 86 Water Year = 2020 First Quartile = 98% Median = 102% Third Quartile = 105% Number of Observations = 86 Water Year = 2020 First Quartile = 98% Median = 102% Third Quartile = 105% Number of Observations = 86 Water Year = 2019 First Quartile = 99% Median = 102% Third Quartile = 105% Number of Observations = 78 Water Year = 2019 First Quartile = 99% Median = 102% Third Quartile = 105% Number of Observations = 78 Water Year = 2019 First Quartile = 99% Median = 102% Third Quartile = 105% Number of Observations = 78 Water Year = 2019 First Quartile = 99% Median = 102% Third Quartile = 105% Number of Observations = 78 Water Year = 2019 First Quartile = 99% Median = 102% Third Quartile = 105% Number of Observations = 78 Water Year = 2019 First Quartile = 99% Median = 102% Third Quartile = 105% Number of Observations = 78 Water Year = 2019 First Quartile = 99% Median = 102% Third Quartile = 105% Number of Observations = 78 Water Year = 2019 First Quartile = 99% Median = 102% Third Quartile = 105% Number of Observations = 78 Water Year = 2017 First Quartile = 104% Median = 106% Third Quartile = 108% Number of Observations = 90 Water Year = 2017 First Quartile = 104% Median = 106% Third Quartile = 108% Number of Observations = 90 Water Year = 2017 First Quartile = 104% Median = 106% Third Quartile = 108% Number of Observations = 90 Water Year = 2017 First Quartile = 104% Median = 106% Third Quartile = 108% Number of Observations = 90 Water Year = 2017 First Quartile = 104% Median = 106% Third Quartile = 108% Number of Observations = 90 Water Year = 2017 First Quartile = 104% Median = 106% Third Quartile = 108% Number of Observations = 90 Water Year = 2017 First Quartile = 104% Median = 106% Third Quartile = 108% Number of Observations = 90 Water Year = 2017 First Quartile = 104% Median = 106% Third Quartile = 108% Number of Observations = 90 Water Year = 2016 First Quartile = 102% Median = 104% Third Quartile = 106% Number of Observations = 90 Water Year = 2016 First Quartile = 102% Median = 104% Third Quartile = 106% Number of Observations = 90 Water Year = 2016 First Quartile = 102% Median = 104% Third Quartile = 106% Number of Observations = 90 Water Year = 2016 First Quartile = 102% Median = 104% Third Quartile = 106% Number of Observations = 90 Water Year = 2016 First Quartile = 102% Median = 104% Third Quartile = 106% Number of Observations = 90 Water Year = 2016 First Quartile = 102% Median = 104% Third Quartile = 106% Number of Observations = 90 Water Year = 2016 First Quartile = 102% Median = 104% Third Quartile = 106% Number of Observations = 90 Water Year = 2016 First Quartile = 102% Median = 104% Third Quartile = 106% Number of Observations = 90 Water Year = 2015 First Quartile = 101% Median = 104% Third Quartile = 106% Number of Observations = 90 Water Year = 2015 First Quartile = 101% Median = 104% Third Quartile = 106% Number of Observations = 90 Water Year = 2015 First Quartile = 101% Median = 104% Third Quartile = 106% Number of Observations = 90 Water Year = 2015 First Quartile = 101% Median = 104% Third Quartile = 106% Number of Observations = 90 Water Year = 2015 First Quartile = 101% Median = 104% Third Quartile = 106% Number of Observations = 90 Water Year = 2015 First Quartile = 101% Median = 104% Third Quartile = 106% Number of Observations = 90 Water Year = 2015 First Quartile = 101% Median = 104% Third Quartile = 106% Number of Observations = 90 Water Year = 2015 First Quartile = 101% Median = 104% Third Quartile = 106% Number of Observations = 90 Water Year = 2014 First Quartile = 99% Median = 102% Third Quartile = 105% Number of Observations = 83 Water Year = 2014 First Quartile = 99% Median = 102% Third Quartile = 105% Number of Observations = 83 Water Year = 2014 First Quartile = 99% Median = 102% Third Quartile = 105% Number of Observations = 83 Water Year = 2014 First Quartile = 99% Median = 102% Third Quartile = 105% Number of Observations = 83 Water Year = 2014 First Quartile = 99% Median = 102% Third Quartile = 105% Number of Observations = 83 Water Year = 2014 First Quartile = 99% Median = 102% Third Quartile = 105% Number of Observations = 83 Water Year = 2014 First Quartile = 99% Median = 102% Third Quartile = 105% Number of Observations = 83 Water Year = 2014 First Quartile = 99% Median = 102% Third Quartile = 105% Number of Observations = 83 Water Year = 2013 First Quartile = 102% Median = 105% Third Quartile = 107% Number of Observations = 108 Water Year = 2013 First Quartile = 102% Median = 105% Third Quartile = 107% Number of Observations = 108 Water Year = 2013 First Quartile = 102% Median = 105% Third Quartile = 107% Number of Observations = 108 Water Year = 2013 First Quartile = 102% Median = 105% Third Quartile = 107% Number of Observations = 108 Water Year = 2013 First Quartile = 102% Median = 105% Third Quartile = 107% Number of Observations = 108 Water Year = 2013 First Quartile = 102% Median = 105% Third Quartile = 107% Number of Observations = 108 Water Year = 2013 First Quartile = 102% Median = 105% Third Quartile = 107% Number of Observations = 108 Water Year = 2013 First Quartile = 102% Median = 105% Third Quartile = 107% Number of Observations = 108 Water Year = 2012 First Quartile = 103% Median = 105% Third Quartile = 108% Number of Observations = 132 Water Year = 2012 First Quartile = 103% Median = 105% Third Quartile = 108% Number of Observations = 132 Water Year = 2012 First Quartile = 103% Median = 105% Third Quartile = 108% Number of Observations = 132 Water Year = 2012 First Quartile = 103% Median = 105% Third Quartile = 108% Number of Observations = 132 Water Year = 2012 First Quartile = 103% Median = 105% Third Quartile = 108% Number of Observations = 132 Water Year = 2012 First Quartile = 103% Median = 105% Third Quartile = 108% Number of Observations = 132 Water Year = 2012 First Quartile = 103% Median = 105% Third Quartile = 108% Number of Observations = 132 Water Year = 2012 First Quartile = 103% Median = 105% Third Quartile = 108% Number of Observations = 132 Water Year = 2011 First Quartile = 100% Median = 103% Third Quartile = 107% Number of Observations = 131 Water Year = 2011 First Quartile = 100% Median = 103% Third Quartile = 107% Number of Observations = 131 Water Year = 2011 First Quartile = 100% Median = 103% Third Quartile = 107% Number of Observations = 131 Water Year = 2011 First Quartile = 100% Median = 103% Third Quartile = 107% Number of Observations = 131 Water Year = 2011 First Quartile = 100% Median = 103% Third Quartile = 107% Number of Observations = 131 Water Year = 2011 First Quartile = 100% Median = 103% Third Quartile = 107% Number of Observations = 131 Water Year = 2011 First Quartile = 100% Median = 103% Third Quartile = 107% Number of Observations = 131 Water Year = 2011 First Quartile = 100% Median = 103% Third Quartile = 107% Number of Observations = 131 Water Year = 2010 First Quartile = 103% Median = 105% Third Quartile = 107% Number of Observations = 132 Water Year = 2010 First Quartile = 103% Median = 105% Third Quartile = 107% Number of Observations = 132 Water Year = 2010 First Quartile = 103% Median = 105% Third Quartile = 107% Number of Observations = 132 Water Year = 2010 First Quartile = 103% Median = 105% Third Quartile = 107% Number of Observations = 132 Water Year = 2010 First Quartile = 103% Median = 105% Third Quartile = 107% Number of Observations = 132 Water Year = 2010 First Quartile = 103% Median = 105% Third Quartile = 107% Number of Observations = 132 Water Year = 2010 First Quartile = 103% Median = 105% Third Quartile = 107% Number of Observations = 132 Water Year = 2010 First Quartile = 103% Median = 105% Third Quartile = 107% Number of Observations = 132 Y = 1
The SGPlot Procedure

Percent Recovery Statistics for Molybdenum, fltd, ICP-MS

Analyte Parm-meth Code Water Year # of
Samples		 25th Pctl 50th Pctl
(Median)		 75th Pctl
Molybdenum, fltd, ICP-MS 01060PLM43 2010 132 102.5% 105.0% 107.2%
    2011 131 99.9% 102.9% 106.6%
    2012 132 103.2% 105.1% 107.7%
    2013 108 101.7% 105.0% 107.2%
    2014 83 98.6% 101.8% 104.7%
    2015 90 101.4% 103.7% 105.9%
    2016 90 101.6% 103.6% 105.7%
    2017 90 103.6% 105.7% 108.2%
    2019 78 99.3% 102.0% 104.9%
    2020 86 98.1% 101.9% 104.8%
    2021 90 100.0% 103.6% 106.1%
    2022 89 102.5% 105.7% 111.2%
    2023 89 104.1% 106.3% 108.9%
    2024 73 108.7% 110.2% 113.2%

Hover over boxplot or outliers for additional information
Chart generated 03/27/2025
Charts and data secured from this U.S. Geological Survey (USGS) web page (identified as IBSP) have not received official USGS approval and as such are provisional and subject to revision. The charts and data are released on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use.


- Molybdenum, unfltd, ICP-MS, recov -
Lab: NWQL, PCode: 01062, MCode: PLM48
Analysis Dates: 10/06/09 through 04/30/15
Open Data Set
Boxplot Description

Water Year = 2014 plotvalue = 119% pctrecov = 119% Water Year = 2013 plotvalue = 113% pctrecov = 113% Water Year = 2012 plotvalue = 91% pctrecov = 91% Water Year = 2012 plotvalue = 87% pctrecov = 87% Water Year = 2010 plotvalue = 117% pctrecov = 117% Water Year = 2010 plotvalue = 96% pctrecov = 96% Water Year = 2010 plotvalue = 95% pctrecov = 95% Water Year = 2015 First Quartile = 101% Median = 104% Third Quartile = 106% Number of Observations = 27 Water Year = 2015 First Quartile = 101% Median = 104% Third Quartile = 106% Number of Observations = 27 Water Year = 2015 First Quartile = 101% Median = 104% Third Quartile = 106% Number of Observations = 27 Water Year = 2015 First Quartile = 101% Median = 104% Third Quartile = 106% Number of Observations = 27 Water Year = 2015 First Quartile = 101% Median = 104% Third Quartile = 106% Number of Observations = 27 Water Year = 2015 First Quartile = 101% Median = 104% Third Quartile = 106% Number of Observations = 27 Water Year = 2015 First Quartile = 101% Median = 104% Third Quartile = 106% Number of Observations = 27 Water Year = 2015 First Quartile = 101% Median = 104% Third Quartile = 106% Number of Observations = 27 Water Year = 2014 First Quartile = 101% Median = 104% Third Quartile = 107% Number of Observations = 45 Water Year = 2014 First Quartile = 101% Median = 104% Third Quartile = 107% Number of Observations = 45 Water Year = 2014 First Quartile = 101% Median = 104% Third Quartile = 107% Number of Observations = 45 Water Year = 2014 First Quartile = 101% Median = 104% Third Quartile = 107% Number of Observations = 45 Water Year = 2014 First Quartile = 101% Median = 104% Third Quartile = 107% Number of Observations = 45 Water Year = 2014 First Quartile = 101% Median = 104% Third Quartile = 107% Number of Observations = 45 Water Year = 2014 First Quartile = 101% Median = 104% Third Quartile = 107% Number of Observations = 45 Water Year = 2014 First Quartile = 101% Median = 104% Third Quartile = 107% Number of Observations = 45 Water Year = 2013 First Quartile = 98% Median = 101% Third Quartile = 104% Number of Observations = 48 Water Year = 2013 First Quartile = 98% Median = 101% Third Quartile = 104% Number of Observations = 48 Water Year = 2013 First Quartile = 98% Median = 101% Third Quartile = 104% Number of Observations = 48 Water Year = 2013 First Quartile = 98% Median = 101% Third Quartile = 104% Number of Observations = 48 Water Year = 2013 First Quartile = 98% Median = 101% Third Quartile = 104% Number of Observations = 48 Water Year = 2013 First Quartile = 98% Median = 101% Third Quartile = 104% Number of Observations = 48 Water Year = 2013 First Quartile = 98% Median = 101% Third Quartile = 104% Number of Observations = 48 Water Year = 2013 First Quartile = 98% Median = 101% Third Quartile = 104% Number of Observations = 48 Water Year = 2012 First Quartile = 99% Median = 103% Third Quartile = 105% Number of Observations = 48 Water Year = 2012 First Quartile = 99% Median = 103% Third Quartile = 105% Number of Observations = 48 Water Year = 2012 First Quartile = 99% Median = 103% Third Quartile = 105% Number of Observations = 48 Water Year = 2012 First Quartile = 99% Median = 103% Third Quartile = 105% Number of Observations = 48 Water Year = 2012 First Quartile = 99% Median = 103% Third Quartile = 105% Number of Observations = 48 Water Year = 2012 First Quartile = 99% Median = 103% Third Quartile = 105% Number of Observations = 48 Water Year = 2012 First Quartile = 99% Median = 103% Third Quartile = 105% Number of Observations = 48 Water Year = 2012 First Quartile = 99% Median = 103% Third Quartile = 105% Number of Observations = 48 Water Year = 2011 First Quartile = 98% Median = 102% Third Quartile = 105% Number of Observations = 48 Water Year = 2011 First Quartile = 98% Median = 102% Third Quartile = 105% Number of Observations = 48 Water Year = 2011 First Quartile = 98% Median = 102% Third Quartile = 105% Number of Observations = 48 Water Year = 2011 First Quartile = 98% Median = 102% Third Quartile = 105% Number of Observations = 48 Water Year = 2011 First Quartile = 98% Median = 102% Third Quartile = 105% Number of Observations = 48 Water Year = 2011 First Quartile = 98% Median = 102% Third Quartile = 105% Number of Observations = 48 Water Year = 2011 First Quartile = 98% Median = 102% Third Quartile = 105% Number of Observations = 48 Water Year = 2011 First Quartile = 98% Median = 102% Third Quartile = 105% Number of Observations = 48 Water Year = 2010 First Quartile = 102% Median = 104% Third Quartile = 106% Number of Observations = 48 Water Year = 2010 First Quartile = 102% Median = 104% Third Quartile = 106% Number of Observations = 48 Water Year = 2010 First Quartile = 102% Median = 104% Third Quartile = 106% Number of Observations = 48 Water Year = 2010 First Quartile = 102% Median = 104% Third Quartile = 106% Number of Observations = 48 Water Year = 2010 First Quartile = 102% Median = 104% Third Quartile = 106% Number of Observations = 48 Water Year = 2010 First Quartile = 102% Median = 104% Third Quartile = 106% Number of Observations = 48 Water Year = 2010 First Quartile = 102% Median = 104% Third Quartile = 106% Number of Observations = 48 Water Year = 2010 First Quartile = 102% Median = 104% Third Quartile = 106% Number of Observations = 48 Water Year = 2009 First Quartile = 101% Median = 101% Third Quartile = 103% Number of Observations = 4 Water Year = 2009 First Quartile = 101% Median = 101% Third Quartile = 103% Number of Observations = 4 Water Year = 2009 First Quartile = 101% Median = 101% Third Quartile = 103% Number of Observations = 4 Water Year = 2009 First Quartile = 101% Median = 101% Third Quartile = 103% Number of Observations = 4 Water Year = 2009 First Quartile = 101% Median = 101% Third Quartile = 103% Number of Observations = 4 Water Year = 2009 First Quartile = 101% Median = 101% Third Quartile = 103% Number of Observations = 4 Water Year = 2009 First Quartile = 101% Median = 101% Third Quartile = 103% Number of Observations = 4 Water Year = 2009 First Quartile = 101% Median = 101% Third Quartile = 103% Number of Observations = 4 Y = 1
The SGPlot Procedure

Percent Recovery Statistics for Molybdenum, unfltd, ICP-MS, recov

Analyte Parm-meth Code Water Year # of
Samples		 25th Pctl 50th Pctl
(Median)		 75th Pctl
Molybdenum, unfltd, ICP-MS, recov 01062PLM48 2009 4 100.7% 101.2% 102.6%
    2010 48 102.2% 103.6% 105.9%
    2011 48 97.8% 101.9% 105.0%
    2012 48 99.2% 102.5% 104.7%
    2013 48 98.4% 101.1% 104.1%
    2014 45 101.5% 104.4% 106.5%
    2015 27 100.7% 103.7% 106.5%

Hover over boxplot or outliers for additional information
Chart generated 03/27/2025
Charts and data secured from this U.S. Geological Survey (USGS) web page (identified as IBSP) have not received official USGS approval and as such are provisional and subject to revision. The charts and data are released on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use.


- Molybdenum, unfltd, ICP-MS, recov -
Lab: NWQL, PCode: 01062, MCode: PLM78
Analysis Dates: 05/12/15 through 09/25/24
Open Data Set
Boxplot Description

Water Year = 2024 plotvalue = 130% pctrecov = 206% Water Year = 2023 plotvalue = 120% pctrecov = 120% Water Year = 2023 plotvalue = 130% pctrecov = 200% Water Year = 2023 plotvalue = 130% pctrecov = 325% Water Year = 2023 plotvalue = 130% pctrecov = 133% Water Year = 2023 plotvalue = 130% pctrecov = 216% Water Year = 2022 plotvalue = 125% pctrecov = 125% Water Year = 2022 plotvalue = 130% pctrecov = 1030% Water Year = 2022 plotvalue = 130% pctrecov = 146% Water Year = 2021 plotvalue = 119% pctrecov = 119% Water Year = 2021 plotvalue = 83% pctrecov = 83% Water Year = 2020 plotvalue = 123% pctrecov = 123% Water Year = 2020 plotvalue = 130% pctrecov = 145% Water Year = 2019 plotvalue = 130% pctrecov = 130% Water Year = 2017 plotvalue = 130% pctrecov = 153% Water Year = 2017 plotvalue = 130% pctrecov = 156% Water Year = 2016 plotvalue = 115% pctrecov = 115% Water Year = 2016 plotvalue = 130% pctrecov = 193% Water Year = 2016 plotvalue = 93% pctrecov = 93% Water Year = 2015 plotvalue = 115% pctrecov = 115% Water Year = 2024 First Quartile = 106% Median = 108% Third Quartile = 111% Number of Observations = 42 Water Year = 2024 First Quartile = 106% Median = 108% Third Quartile = 111% Number of Observations = 42 Water Year = 2024 First Quartile = 106% Median = 108% Third Quartile = 111% Number of Observations = 42 Water Year = 2024 First Quartile = 106% Median = 108% Third Quartile = 111% Number of Observations = 42 Water Year = 2024 First Quartile = 106% Median = 108% Third Quartile = 111% Number of Observations = 42 Water Year = 2024 First Quartile = 106% Median = 108% Third Quartile = 111% Number of Observations = 42 Water Year = 2024 First Quartile = 106% Median = 108% Third Quartile = 111% Number of Observations = 42 Water Year = 2024 First Quartile = 106% Median = 108% Third Quartile = 111% Number of Observations = 42 Water Year = 2023 First Quartile = 104% Median = 108% Third Quartile = 110% Number of Observations = 48 Water Year = 2023 First Quartile = 104% Median = 108% Third Quartile = 110% Number of Observations = 48 Water Year = 2023 First Quartile = 104% Median = 108% Third Quartile = 110% Number of Observations = 48 Water Year = 2023 First Quartile = 104% Median = 108% Third Quartile = 110% Number of Observations = 48 Water Year = 2023 First Quartile = 104% Median = 108% Third Quartile = 110% Number of Observations = 48 Water Year = 2023 First Quartile = 104% Median = 108% Third Quartile = 110% Number of Observations = 48 Water Year = 2023 First Quartile = 104% Median = 108% Third Quartile = 110% Number of Observations = 48 Water Year = 2023 First Quartile = 104% Median = 108% Third Quartile = 110% Number of Observations = 48 Water Year = 2022 First Quartile = 102% Median = 105% Third Quartile = 109% Number of Observations = 47 Water Year = 2022 First Quartile = 102% Median = 105% Third Quartile = 109% Number of Observations = 47 Water Year = 2022 First Quartile = 102% Median = 105% Third Quartile = 109% Number of Observations = 47 Water Year = 2022 First Quartile = 102% Median = 105% Third Quartile = 109% Number of Observations = 47 Water Year = 2022 First Quartile = 102% Median = 105% Third Quartile = 109% Number of Observations = 47 Water Year = 2022 First Quartile = 102% Median = 105% Third Quartile = 109% Number of Observations = 47 Water Year = 2022 First Quartile = 102% Median = 105% Third Quartile = 109% Number of Observations = 47 Water Year = 2022 First Quartile = 102% Median = 105% Third Quartile = 109% Number of Observations = 47 Water Year = 2021 First Quartile = 98% Median = 101% Third Quartile = 103% Number of Observations = 48 Water Year = 2021 First Quartile = 98% Median = 101% Third Quartile = 103% Number of Observations = 48 Water Year = 2021 First Quartile = 98% Median = 101% Third Quartile = 103% Number of Observations = 48 Water Year = 2021 First Quartile = 98% Median = 101% Third Quartile = 103% Number of Observations = 48 Water Year = 2021 First Quartile = 98% Median = 101% Third Quartile = 103% Number of Observations = 48 Water Year = 2021 First Quartile = 98% Median = 101% Third Quartile = 103% Number of Observations = 48 Water Year = 2021 First Quartile = 98% Median = 101% Third Quartile = 103% Number of Observations = 48 Water Year = 2021 First Quartile = 98% Median = 101% Third Quartile = 103% Number of Observations = 48 Water Year = 2020 First Quartile = 98% Median = 102% Third Quartile = 105% Number of Observations = 44 Water Year = 2020 First Quartile = 98% Median = 102% Third Quartile = 105% Number of Observations = 44 Water Year = 2020 First Quartile = 98% Median = 102% Third Quartile = 105% Number of Observations = 44 Water Year = 2020 First Quartile = 98% Median = 102% Third Quartile = 105% Number of Observations = 44 Water Year = 2020 First Quartile = 98% Median = 102% Third Quartile = 105% Number of Observations = 44 Water Year = 2020 First Quartile = 98% Median = 102% Third Quartile = 105% Number of Observations = 44 Water Year = 2020 First Quartile = 98% Median = 102% Third Quartile = 105% Number of Observations = 44 Water Year = 2020 First Quartile = 98% Median = 102% Third Quartile = 105% Number of Observations = 44 Water Year = 2019 First Quartile = 100% Median = 103% Third Quartile = 107% Number of Observations = 40 Water Year = 2019 First Quartile = 100% Median = 103% Third Quartile = 107% Number of Observations = 40 Water Year = 2019 First Quartile = 100% Median = 103% Third Quartile = 107% Number of Observations = 40 Water Year = 2019 First Quartile = 100% Median = 103% Third Quartile = 107% Number of Observations = 40 Water Year = 2019 First Quartile = 100% Median = 103% Third Quartile = 107% Number of Observations = 40 Water Year = 2019 First Quartile = 100% Median = 103% Third Quartile = 107% Number of Observations = 40 Water Year = 2019 First Quartile = 100% Median = 103% Third Quartile = 107% Number of Observations = 40 Water Year = 2019 First Quartile = 100% Median = 103% Third Quartile = 107% Number of Observations = 40 Water Year = 2017 First Quartile = 104% Median = 107% Third Quartile = 110% Number of Observations = 48 Water Year = 2017 First Quartile = 104% Median = 107% Third Quartile = 110% Number of Observations = 48 Water Year = 2017 First Quartile = 104% Median = 107% Third Quartile = 110% Number of Observations = 48 Water Year = 2017 First Quartile = 104% Median = 107% Third Quartile = 110% Number of Observations = 48 Water Year = 2017 First Quartile = 104% Median = 107% Third Quartile = 110% Number of Observations = 48 Water Year = 2017 First Quartile = 104% Median = 107% Third Quartile = 110% Number of Observations = 48 Water Year = 2017 First Quartile = 104% Median = 107% Third Quartile = 110% Number of Observations = 48 Water Year = 2017 First Quartile = 104% Median = 107% Third Quartile = 110% Number of Observations = 48 Water Year = 2016 First Quartile = 102% Median = 104% Third Quartile = 106% Number of Observations = 48 Water Year = 2016 First Quartile = 102% Median = 104% Third Quartile = 106% Number of Observations = 48 Water Year = 2016 First Quartile = 102% Median = 104% Third Quartile = 106% Number of Observations = 48 Water Year = 2016 First Quartile = 102% Median = 104% Third Quartile = 106% Number of Observations = 48 Water Year = 2016 First Quartile = 102% Median = 104% Third Quartile = 106% Number of Observations = 48 Water Year = 2016 First Quartile = 102% Median = 104% Third Quartile = 106% Number of Observations = 48 Water Year = 2016 First Quartile = 102% Median = 104% Third Quartile = 106% Number of Observations = 48 Water Year = 2016 First Quartile = 102% Median = 104% Third Quartile = 106% Number of Observations = 48 Water Year = 2015 First Quartile = 101% Median = 105% Third Quartile = 106% Number of Observations = 21 Water Year = 2015 First Quartile = 101% Median = 105% Third Quartile = 106% Number of Observations = 21 Water Year = 2015 First Quartile = 101% Median = 105% Third Quartile = 106% Number of Observations = 21 Water Year = 2015 First Quartile = 101% Median = 105% Third Quartile = 106% Number of Observations = 21 Water Year = 2015 First Quartile = 101% Median = 105% Third Quartile = 106% Number of Observations = 21 Water Year = 2015 First Quartile = 101% Median = 105% Third Quartile = 106% Number of Observations = 21 Water Year = 2015 First Quartile = 101% Median = 105% Third Quartile = 106% Number of Observations = 21 Water Year = 2015 First Quartile = 101% Median = 105% Third Quartile = 106% Number of Observations = 21 Y = 1
The SGPlot Procedure

Percent Recovery Statistics for Molybdenum, unfltd, ICP-MS, recov

Analyte Parm-meth Code Water Year # of
Samples		 25th Pctl 50th Pctl
(Median)		 75th Pctl
Molybdenum, unfltd, ICP-MS, recov 01062PLM78 2015 21 101.3% 105.0% 106.4%
    2016 48 101.7% 103.5% 105.7%
    2017 48 103.5% 106.9% 110.0%
    2019 40 99.6% 103.2% 106.7%
    2020 44 97.6% 101.8% 105.1%
    2021 48 97.7% 100.8% 103.5%
    2022 47 102.0% 104.8% 109.3%
    2023 48 104.1% 107.7% 110.4%
    2024 42 106.4% 108.3% 110.6%

Hover over boxplot or outliers for additional information
Chart generated 03/27/2025
Charts and data secured from this U.S. Geological Survey (USGS) web page (identified as IBSP) have not received official USGS approval and as such are provisional and subject to revision. The charts and data are released on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use.


- Nickel, fltd, cICP-MS -
Lab: NWQL, PCode: 01065, MCode: PLM10
Analysis Dates: 10/09/09 through 09/28/24
Open Data Set
Boxplot Description

Water Year = 2024 plotvalue = 130% pctrecov = 130% Water Year = 2024 plotvalue = 130% pctrecov = 133% Water Year = 2024 plotvalue = 130% pctrecov = 132% Water Year = 2024 plotvalue = 130% pctrecov = 131% Water Year = 2024 plotvalue = 130% pctrecov = 131% Water Year = 2023 plotvalue = 127% pctrecov = 127% Water Year = 2023 plotvalue = 130% pctrecov = 183% Water Year = 2023 plotvalue = 130% pctrecov = 137% Water Year = 2023 plotvalue = 130% pctrecov = 131% Water Year = 2023 plotvalue = 130% pctrecov = 198% Water Year = 2023 plotvalue = 130% pctrecov = 160% Water Year = 2022 plotvalue = 120% pctrecov = 120% Water Year = 2022 plotvalue = 122% pctrecov = 122% Water Year = 2022 plotvalue = 130% pctrecov = 148% Water Year = 2021 plotvalue = 114% pctrecov = 114% Water Year = 2021 plotvalue = 114% pctrecov = 114% Water Year = 2021 plotvalue = 117% pctrecov = 117% Water Year = 2021 plotvalue = 120% pctrecov = 120% Water Year = 2021 plotvalue = 120% pctrecov = 120% Water Year = 2021 plotvalue = 87% pctrecov = 87% Water Year = 2021 plotvalue = 87% pctrecov = 87% Water Year = 2021 plotvalue = 86% pctrecov = 86% Water Year = 2021 plotvalue = 86% pctrecov = 86% Water Year = 2021 plotvalue = 83% pctrecov = 83% Water Year = 2021 plotvalue = 79% pctrecov = 79% Water Year = 2019 plotvalue = 130% pctrecov = 130% Water Year = 2019 plotvalue = 130% pctrecov = 212% Water Year = 2019 plotvalue = 130% pctrecov = 172% Water Year = 2019 plotvalue = 130% pctrecov = 160% Water Year = 2019 plotvalue = 71% pctrecov = 71% Water Year = 2019 plotvalue = 70% pctrecov = 41% Water Year = 2014 plotvalue = 70% pctrecov = 57% Water Year = 2014 plotvalue = 70% pctrecov = 17% Water Year = 2013 plotvalue = 130% pctrecov = 266% Water Year = 2013 plotvalue = 80% pctrecov = 80% Water Year = 2013 plotvalue = 80% pctrecov = 80% Water Year = 2013 plotvalue = 79% pctrecov = 79% Water Year = 2013 plotvalue = 79% pctrecov = 79% Water Year = 2013 plotvalue = 78% pctrecov = 78% Water Year = 2013 plotvalue = 76% pctrecov = 76% Water Year = 2013 plotvalue = 75% pctrecov = 75% Water Year = 2013 plotvalue = 74% pctrecov = 74% Water Year = 2013 plotvalue = 72% pctrecov = 72% Water Year = 2013 plotvalue = 72% pctrecov = 72% Water Year = 2013 plotvalue = 70% pctrecov = 51% Water Year = 2013 plotvalue = 70% pctrecov = 56% Water Year = 2012 plotvalue = 111% pctrecov = 111% Water Year = 2012 plotvalue = 112% pctrecov = 112% Water Year = 2012 plotvalue = 86% pctrecov = 86% Water Year = 2012 plotvalue = 70% pctrecov = 19% Water Year = 2012 plotvalue = 70% pctrecov = 1% Water Year = 2012 plotvalue = 70% pctrecov = 2% Water Year = 2011 plotvalue = 111% pctrecov = 111% Water Year = 2011 plotvalue = 111% pctrecov = 111% Water Year = 2011 plotvalue = 118% pctrecov = 118% Water Year = 2011 plotvalue = 119% pctrecov = 119% Water Year = 2011 plotvalue = 123% pctrecov = 123% Water Year = 2011 plotvalue = 87% pctrecov = 87% Water Year = 2011 plotvalue = 87% pctrecov = 87% Water Year = 2011 plotvalue = 86% pctrecov = 86% Water Year = 2011 plotvalue = 85% pctrecov = 85% Water Year = 2011 plotvalue = 84% pctrecov = 84% Water Year = 2011 plotvalue = 70% pctrecov = 12% Water Year = 2024 First Quartile = 103% Median = 108% Third Quartile = 113% Number of Observations = 73 Water Year = 2024 First Quartile = 103% Median = 108% Third Quartile = 113% Number of Observations = 73 Water Year = 2024 First Quartile = 103% Median = 108% Third Quartile = 113% Number of Observations = 73 Water Year = 2024 First Quartile = 103% Median = 108% Third Quartile = 113% Number of Observations = 73 Water Year = 2024 First Quartile = 103% Median = 108% Third Quartile = 113% Number of Observations = 73 Water Year = 2024 First Quartile = 103% Median = 108% Third Quartile = 113% Number of Observations = 73 Water Year = 2024 First Quartile = 103% Median = 108% Third Quartile = 113% Number of Observations = 73 Water Year = 2024 First Quartile = 103% Median = 108% Third Quartile = 113% Number of Observations = 73 Water Year = 2023 First Quartile = 102% Median = 106% Third Quartile = 111% Number of Observations = 89 Water Year = 2023 First Quartile = 102% Median = 106% Third Quartile = 111% Number of Observations = 89 Water Year = 2023 First Quartile = 102% Median = 106% Third Quartile = 111% Number of Observations = 89 Water Year = 2023 First Quartile = 102% Median = 106% Third Quartile = 111% Number of Observations = 89 Water Year = 2023 First Quartile = 102% Median = 106% Third Quartile = 111% Number of Observations = 89 Water Year = 2023 First Quartile = 102% Median = 106% Third Quartile = 111% Number of Observations = 89 Water Year = 2023 First Quartile = 102% Median = 106% Third Quartile = 111% Number of Observations = 89 Water Year = 2023 First Quartile = 102% Median = 106% Third Quartile = 111% Number of Observations = 89 Water Year = 2022 First Quartile = 101% Median = 103% Third Quartile = 108% Number of Observations = 89 Water Year = 2022 First Quartile = 101% Median = 103% Third Quartile = 108% Number of Observations = 89 Water Year = 2022 First Quartile = 101% Median = 103% Third Quartile = 108% Number of Observations = 89 Water Year = 2022 First Quartile = 101% Median = 103% Third Quartile = 108% Number of Observations = 89 Water Year = 2022 First Quartile = 101% Median = 103% Third Quartile = 108% Number of Observations = 89 Water Year = 2022 First Quartile = 101% Median = 103% Third Quartile = 108% Number of Observations = 89 Water Year = 2022 First Quartile = 101% Median = 103% Third Quartile = 108% Number of Observations = 89 Water Year = 2022 First Quartile = 101% Median = 103% Third Quartile = 108% Number of Observations = 89 Water Year = 2021 First Quartile = 98% Median = 101% Third Quartile = 104% Number of Observations = 90 Water Year = 2021 First Quartile = 98% Median = 101% Third Quartile = 104% Number of Observations = 90 Water Year = 2021 First Quartile = 98% Median = 101% Third Quartile = 104% Number of Observations = 90 Water Year = 2021 First Quartile = 98% Median = 101% Third Quartile = 104% Number of Observations = 90 Water Year = 2021 First Quartile = 98% Median = 101% Third Quartile = 104% Number of Observations = 90 Water Year = 2021 First Quartile = 98% Median = 101% Third Quartile = 104% Number of Observations = 90 Water Year = 2021 First Quartile = 98% Median = 101% Third Quartile = 104% Number of Observations = 90 Water Year = 2021 First Quartile = 98% Median = 101% Third Quartile = 104% Number of Observations = 90 Water Year = 2020 First Quartile = 93% Median = 100% Third Quartile = 106% Number of Observations = 86 Water Year = 2020 First Quartile = 93% Median = 100% Third Quartile = 106% Number of Observations = 86 Water Year = 2020 First Quartile = 93% Median = 100% Third Quartile = 106% Number of Observations = 86 Water Year = 2020 First Quartile = 93% Median = 100% Third Quartile = 106% Number of Observations = 86 Water Year = 2020 First Quartile = 93% Median = 100% Third Quartile = 106% Number of Observations = 86 Water Year = 2020 First Quartile = 93% Median = 100% Third Quartile = 106% Number of Observations = 86 Water Year = 2020 First Quartile = 93% Median = 100% Third Quartile = 106% Number of Observations = 86 Water Year = 2020 First Quartile = 93% Median = 100% Third Quartile = 106% Number of Observations = 86 Water Year = 2019 First Quartile = 91% Median = 98% Third Quartile = 104% Number of Observations = 78 Water Year = 2019 First Quartile = 91% Median = 98% Third Quartile = 104% Number of Observations = 78 Water Year = 2019 First Quartile = 91% Median = 98% Third Quartile = 104% Number of Observations = 78 Water Year = 2019 First Quartile = 91% Median = 98% Third Quartile = 104% Number of Observations = 78 Water Year = 2019 First Quartile = 91% Median = 98% Third Quartile = 104% Number of Observations = 78 Water Year = 2019 First Quartile = 91% Median = 98% Third Quartile = 104% Number of Observations = 78 Water Year = 2019 First Quartile = 91% Median = 98% Third Quartile = 104% Number of Observations = 78 Water Year = 2019 First Quartile = 91% Median = 98% Third Quartile = 104% Number of Observations = 78 Water Year = 2017 First Quartile = 94% Median = 107% Third Quartile = 115% Number of Observations = 90 Water Year = 2017 First Quartile = 94% Median = 107% Third Quartile = 115% Number of Observations = 90 Water Year = 2017 First Quartile = 94% Median = 107% Third Quartile = 115% Number of Observations = 90 Water Year = 2017 First Quartile = 94% Median = 107% Third Quartile = 115% Number of Observations = 90 Water Year = 2017 First Quartile = 94% Median = 107% Third Quartile = 115% Number of Observations = 90 Water Year = 2017 First Quartile = 94% Median = 107% Third Quartile = 115% Number of Observations = 90 Water Year = 2017 First Quartile = 94% Median = 107% Third Quartile = 115% Number of Observations = 90 Water Year = 2017 First Quartile = 94% Median = 107% Third Quartile = 115% Number of Observations = 90 Water Year = 2016 First Quartile = 89% Median = 100% Third Quartile = 112% Number of Observations = 74 Water Year = 2016 First Quartile = 89% Median = 100% Third Quartile = 112% Number of Observations = 74 Water Year = 2016 First Quartile = 89% Median = 100% Third Quartile = 112% Number of Observations = 74 Water Year = 2016 First Quartile = 89% Median = 100% Third Quartile = 112% Number of Observations = 74 Water Year = 2016 First Quartile = 89% Median = 100% Third Quartile = 112% Number of Observations = 74 Water Year = 2016 First Quartile = 89% Median = 100% Third Quartile = 112% Number of Observations = 74 Water Year = 2016 First Quartile = 89% Median = 100% Third Quartile = 112% Number of Observations = 74 Water Year = 2016 First Quartile = 89% Median = 100% Third Quartile = 112% Number of Observations = 74 Water Year = 2015 First Quartile = 102% Median = 114% Third Quartile = 125% Number of Observations = 44 Water Year = 2015 First Quartile = 102% Median = 114% Third Quartile = 125% Number of Observations = 44 Water Year = 2015 First Quartile = 102% Median = 114% Third Quartile = 125% Number of Observations = 44 Water Year = 2015 First Quartile = 102% Median = 114% Third Quartile = 125% Number of Observations = 44 Water Year = 2015 First Quartile = 102% Median = 114% Third Quartile = 125% Number of Observations = 44 Water Year = 2015 First Quartile = 102% Median = 114% Third Quartile = 125% Number of Observations = 44 Water Year = 2015 First Quartile = 102% Median = 114% Third Quartile = 125% Number of Observations = 44 Water Year = 2015 First Quartile = 102% Median = 114% Third Quartile = 125% Number of Observations = 44 Water Year = 2014 First Quartile = 97% Median = 103% Third Quartile = 114% Number of Observations = 83 Water Year = 2014 First Quartile = 97% Median = 103% Third Quartile = 114% Number of Observations = 83 Water Year = 2014 First Quartile = 97% Median = 103% Third Quartile = 114% Number of Observations = 83 Water Year = 2014 First Quartile = 97% Median = 103% Third Quartile = 114% Number of Observations = 83 Water Year = 2014 First Quartile = 97% Median = 103% Third Quartile = 114% Number of Observations = 83 Water Year = 2014 First Quartile = 97% Median = 103% Third Quartile = 114% Number of Observations = 83 Water Year = 2014 First Quartile = 97% Median = 103% Third Quartile = 114% Number of Observations = 83 Water Year = 2014 First Quartile = 97% Median = 103% Third Quartile = 114% Number of Observations = 83 Water Year = 2013 First Quartile = 94% Median = 97% Third Quartile = 101% Number of Observations = 108 Water Year = 2013 First Quartile = 94% Median = 97% Third Quartile = 101% Number of Observations = 108 Water Year = 2013 First Quartile = 94% Median = 97% Third Quartile = 101% Number of Observations = 108 Water Year = 2013 First Quartile = 94% Median = 97% Third Quartile = 101% Number of Observations = 108 Water Year = 2013 First Quartile = 94% Median = 97% Third Quartile = 101% Number of Observations = 108 Water Year = 2013 First Quartile = 94% Median = 97% Third Quartile = 101% Number of Observations = 108 Water Year = 2013 First Quartile = 94% Median = 97% Third Quartile = 101% Number of Observations = 108 Water Year = 2013 First Quartile = 94% Median = 97% Third Quartile = 101% Number of Observations = 108 Water Year = 2012 First Quartile = 95% Median = 98% Third Quartile = 101% Number of Observations = 132 Water Year = 2012 First Quartile = 95% Median = 98% Third Quartile = 101% Number of Observations = 132 Water Year = 2012 First Quartile = 95% Median = 98% Third Quartile = 101% Number of Observations = 132 Water Year = 2012 First Quartile = 95% Median = 98% Third Quartile = 101% Number of Observations = 132 Water Year = 2012 First Quartile = 95% Median = 98% Third Quartile = 101% Number of Observations = 132 Water Year = 2012 First Quartile = 95% Median = 98% Third Quartile = 101% Number of Observations = 132 Water Year = 2012 First Quartile = 95% Median = 98% Third Quartile = 101% Number of Observations = 132 Water Year = 2012 First Quartile = 95% Median = 98% Third Quartile = 101% Number of Observations = 132 Water Year = 2011 First Quartile = 96% Median = 98% Third Quartile = 101% Number of Observations = 131 Water Year = 2011 First Quartile = 96% Median = 98% Third Quartile = 101% Number of Observations = 131 Water Year = 2011 First Quartile = 96% Median = 98% Third Quartile = 101% Number of Observations = 131 Water Year = 2011 First Quartile = 96% Median = 98% Third Quartile = 101% Number of Observations = 131 Water Year = 2011 First Quartile = 96% Median = 98% Third Quartile = 101% Number of Observations = 131 Water Year = 2011 First Quartile = 96% Median = 98% Third Quartile = 101% Number of Observations = 131 Water Year = 2011 First Quartile = 96% Median = 98% Third Quartile = 101% Number of Observations = 131 Water Year = 2011 First Quartile = 96% Median = 98% Third Quartile = 101% Number of Observations = 131 Water Year = 2010 First Quartile = 91% Median = 99% Third Quartile = 110% Number of Observations = 132 Water Year = 2010 First Quartile = 91% Median = 99% Third Quartile = 110% Number of Observations = 132 Water Year = 2010 First Quartile = 91% Median = 99% Third Quartile = 110% Number of Observations = 132 Water Year = 2010 First Quartile = 91% Median = 99% Third Quartile = 110% Number of Observations = 132 Water Year = 2010 First Quartile = 91% Median = 99% Third Quartile = 110% Number of Observations = 132 Water Year = 2010 First Quartile = 91% Median = 99% Third Quartile = 110% Number of Observations = 132 Water Year = 2010 First Quartile = 91% Median = 99% Third Quartile = 110% Number of Observations = 132 Water Year = 2010 First Quartile = 91% Median = 99% Third Quartile = 110% Number of Observations = 132 Y = 1
The SGPlot Procedure

Percent Recovery Statistics for Nickel, fltd, cICP-MS

Analyte Parm-meth Code Water Year # of
Samples		 25th Pctl 50th Pctl
(Median)		 75th Pctl
Nickel, fltd, cICP-MS 01065PLM10 2010 132 91.3% 99.0% 110.2%
    2011 131 95.8% 98.2% 100.8%
    2012 132 95.4% 98.0% 100.7%
    2013 108 93.7% 97.1% 100.7%
    2014 83 97.0% 103.4% 113.7%
    2015 44 102.0% 114.2% 125.1%
    2016 74 89.4% 99.7% 111.6%
    2017 90 93.6% 106.6% 114.8%
    2019 78 91.3% 97.9% 103.8%
    2020 86 93.1% 99.8% 105.6%
    2021 90 98.0% 101.1% 104.0%
    2022 89 100.5% 102.9% 107.9%
    2023 89 102.2% 105.9% 111.1%
    2024 73 103.0% 107.9% 113.4%

Hover over boxplot or outliers for additional information
Chart generated 03/27/2025
Charts and data secured from this U.S. Geological Survey (USGS) web page (identified as IBSP) have not received official USGS approval and as such are provisional and subject to revision. The charts and data are released on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use.


- Nickel, unfltd, cICP-MS, recov -
Lab: NWQL, PCode: 01067, MCode: PLM11
Analysis Dates: 10/05/09 through 04/30/15
Open Data Set
Boxplot Description

Water Year = 2014 plotvalue = 100% pctrecov = 100% Water Year = 2014 plotvalue = 101% pctrecov = 101% Water Year = 2014 plotvalue = 101% pctrecov = 101% Water Year = 2014 plotvalue = 102% pctrecov = 102% Water Year = 2014 plotvalue = 77% pctrecov = 77% Water Year = 2014 plotvalue = 73% pctrecov = 73% Water Year = 2014 plotvalue = 70% pctrecov = 57% Water Year = 2013 plotvalue = 130% pctrecov = 263% Water Year = 2013 plotvalue = 73% pctrecov = 73% Water Year = 2013 plotvalue = 72% pctrecov = 72% Water Year = 2013 plotvalue = 72% pctrecov = 72% Water Year = 2013 plotvalue = 70% pctrecov = 68% Water Year = 2013 plotvalue = 70% pctrecov = 70% Water Year = 2013 plotvalue = 70% pctrecov = 63% Water Year = 2012 plotvalue = 118% pctrecov = 118% Water Year = 2012 plotvalue = 130% pctrecov = 425% Water Year = 2012 plotvalue = 90% pctrecov = 90% Water Year = 2012 plotvalue = 86% pctrecov = 86% Water Year = 2011 plotvalue = 112% pctrecov = 112% Water Year = 2011 plotvalue = 112% pctrecov = 112% Water Year = 2011 plotvalue = 81% pctrecov = 81% Water Year = 2010 plotvalue = 118% pctrecov = 118% Water Year = 2010 plotvalue = 130% pctrecov = 272% Water Year = 2010 plotvalue = 130% pctrecov = 410% Water Year = 2010 plotvalue = 130% pctrecov = 157% Water Year = 2010 plotvalue = 70% pctrecov = 70% Water Year = 2009 plotvalue = 130% pctrecov = 180% Water Year = 2009 plotvalue = 73% pctrecov = 73% Water Year = 2015 First Quartile = 81% Median = 87% Third Quartile = 93% Number of Observations = 14 Water Year = 2015 First Quartile = 81% Median = 87% Third Quartile = 93% Number of Observations = 14 Water Year = 2015 First Quartile = 81% Median = 87% Third Quartile = 93% Number of Observations = 14 Water Year = 2015 First Quartile = 81% Median = 87% Third Quartile = 93% Number of Observations = 14 Water Year = 2015 First Quartile = 81% Median = 87% Third Quartile = 93% Number of Observations = 14 Water Year = 2015 First Quartile = 81% Median = 87% Third Quartile = 93% Number of Observations = 14 Water Year = 2015 First Quartile = 81% Median = 87% Third Quartile = 93% Number of Observations = 14 Water Year = 2015 First Quartile = 81% Median = 87% Third Quartile = 93% Number of Observations = 14 Water Year = 2014 First Quartile = 86% Median = 89% Third Quartile = 91% Number of Observations = 45 Water Year = 2014 First Quartile = 86% Median = 89% Third Quartile = 91% Number of Observations = 45 Water Year = 2014 First Quartile = 86% Median = 89% Third Quartile = 91% Number of Observations = 45 Water Year = 2014 First Quartile = 86% Median = 89% Third Quartile = 91% Number of Observations = 45 Water Year = 2014 First Quartile = 86% Median = 89% Third Quartile = 91% Number of Observations = 45 Water Year = 2014 First Quartile = 86% Median = 89% Third Quartile = 91% Number of Observations = 45 Water Year = 2014 First Quartile = 86% Median = 89% Third Quartile = 91% Number of Observations = 45 Water Year = 2014 First Quartile = 86% Median = 89% Third Quartile = 91% Number of Observations = 45 Water Year = 2013 First Quartile = 91% Median = 97% Third Quartile = 99% Number of Observations = 48 Water Year = 2013 First Quartile = 91% Median = 97% Third Quartile = 99% Number of Observations = 48 Water Year = 2013 First Quartile = 91% Median = 97% Third Quartile = 99% Number of Observations = 48 Water Year = 2013 First Quartile = 91% Median = 97% Third Quartile = 99% Number of Observations = 48 Water Year = 2013 First Quartile = 91% Median = 97% Third Quartile = 99% Number of Observations = 48 Water Year = 2013 First Quartile = 91% Median = 97% Third Quartile = 99% Number of Observations = 48 Water Year = 2013 First Quartile = 91% Median = 97% Third Quartile = 99% Number of Observations = 48 Water Year = 2013 First Quartile = 91% Median = 97% Third Quartile = 99% Number of Observations = 48 Water Year = 2012 First Quartile = 97% Median = 98% Third Quartile = 100% Number of Observations = 48 Water Year = 2012 First Quartile = 97% Median = 98% Third Quartile = 100% Number of Observations = 48 Water Year = 2012 First Quartile = 97% Median = 98% Third Quartile = 100% Number of Observations = 48 Water Year = 2012 First Quartile = 97% Median = 98% Third Quartile = 100% Number of Observations = 48 Water Year = 2012 First Quartile = 97% Median = 98% Third Quartile = 100% Number of Observations = 48 Water Year = 2012 First Quartile = 97% Median = 98% Third Quartile = 100% Number of Observations = 48 Water Year = 2012 First Quartile = 97% Median = 98% Third Quartile = 100% Number of Observations = 48 Water Year = 2012 First Quartile = 97% Median = 98% Third Quartile = 100% Number of Observations = 48 Water Year = 2011 First Quartile = 92% Median = 96% Third Quartile = 98% Number of Observations = 82 Water Year = 2011 First Quartile = 92% Median = 96% Third Quartile = 98% Number of Observations = 82 Water Year = 2011 First Quartile = 92% Median = 96% Third Quartile = 98% Number of Observations = 82 Water Year = 2011 First Quartile = 92% Median = 96% Third Quartile = 98% Number of Observations = 82 Water Year = 2011 First Quartile = 92% Median = 96% Third Quartile = 98% Number of Observations = 82 Water Year = 2011 First Quartile = 92% Median = 96% Third Quartile = 98% Number of Observations = 82 Water Year = 2011 First Quartile = 92% Median = 96% Third Quartile = 98% Number of Observations = 82 Water Year = 2011 First Quartile = 92% Median = 96% Third Quartile = 98% Number of Observations = 82 Water Year = 2010 First Quartile = 86% Median = 91% Third Quartile = 95% Number of Observations = 84 Water Year = 2010 First Quartile = 86% Median = 91% Third Quartile = 95% Number of Observations = 84 Water Year = 2010 First Quartile = 86% Median = 91% Third Quartile = 95% Number of Observations = 84 Water Year = 2010 First Quartile = 86% Median = 91% Third Quartile = 95% Number of Observations = 84 Water Year = 2010 First Quartile = 86% Median = 91% Third Quartile = 95% Number of Observations = 84 Water Year = 2010 First Quartile = 86% Median = 91% Third Quartile = 95% Number of Observations = 84 Water Year = 2010 First Quartile = 86% Median = 91% Third Quartile = 95% Number of Observations = 84 Water Year = 2010 First Quartile = 86% Median = 91% Third Quartile = 95% Number of Observations = 84 Water Year = 2009 First Quartile = 86% Median = 91% Third Quartile = 95% Number of Observations = 9 Water Year = 2009 First Quartile = 86% Median = 91% Third Quartile = 95% Number of Observations = 9 Water Year = 2009 First Quartile = 86% Median = 91% Third Quartile = 95% Number of Observations = 9 Water Year = 2009 First Quartile = 86% Median = 91% Third Quartile = 95% Number of Observations = 9 Water Year = 2009 First Quartile = 86% Median = 91% Third Quartile = 95% Number of Observations = 9 Water Year = 2009 First Quartile = 86% Median = 91% Third Quartile = 95% Number of Observations = 9 Water Year = 2009 First Quartile = 86% Median = 91% Third Quartile = 95% Number of Observations = 9 Water Year = 2009 First Quartile = 86% Median = 91% Third Quartile = 95% Number of Observations = 9 Y = 1
The SGPlot Procedure

Percent Recovery Statistics for Nickel, unfltd, cICP-MS, recov

Analyte Parm-meth Code Water Year # of
Samples		 25th Pctl 50th Pctl
(Median)		 75th Pctl
Nickel, unfltd, cICP-MS, recov 01067PLM11 2009 9 86.1% 90.6% 94.7%
    2010 84 85.8% 90.8% 95.2%
    2011 82 92.3% 95.8% 98.0%
    2012 48 96.5% 98.1% 100.2%
    2013 48 91.4% 96.9% 99.2%
    2014 45 86.3% 88.7% 91.5%
    2015 14 80.7% 86.7% 93.1%

Hover over boxplot or outliers for additional information
Chart generated 03/27/2025
Charts and data secured from this U.S. Geological Survey (USGS) web page (identified as IBSP) have not received official USGS approval and as such are provisional and subject to revision. The charts and data are released on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use.


- Nickel, unfltd, cICP-MS, recov -
Lab: NWQL, PCode: 01067, MCode: PLM77
Analysis Dates: 05/12/15 through 09/25/24
Open Data Set
Boxplot Description

Water Year = 2024 plotvalue = 127% pctrecov = 127% Water Year = 2024 plotvalue = 129% pctrecov = 129% Water Year = 2023 plotvalue = 128% pctrecov = 128% Water Year = 2023 plotvalue = 130% pctrecov = 131% Water Year = 2023 plotvalue = 130% pctrecov = 215% Water Year = 2023 plotvalue = 130% pctrecov = 132% Water Year = 2022 plotvalue = 123% pctrecov = 123% Water Year = 2022 plotvalue = 129% pctrecov = 129% Water Year = 2022 plotvalue = 130% pctrecov = 139% Water Year = 2021 plotvalue = 126% pctrecov = 126% Water Year = 2021 plotvalue = 128% pctrecov = 128% Water Year = 2021 plotvalue = 81% pctrecov = 81% Water Year = 2021 plotvalue = 81% pctrecov = 81% Water Year = 2021 plotvalue = 78% pctrecov = 78% Water Year = 2020 plotvalue = 113% pctrecov = 113% Water Year = 2020 plotvalue = 77% pctrecov = 77% Water Year = 2019 plotvalue = 130% pctrecov = 1798% Water Year = 2019 plotvalue = 130% pctrecov = 136% Water Year = 2024 First Quartile = 101% Median = 106% Third Quartile = 110% Number of Observations = 42 Water Year = 2024 First Quartile = 101% Median = 106% Third Quartile = 110% Number of Observations = 42 Water Year = 2024 First Quartile = 101% Median = 106% Third Quartile = 110% Number of Observations = 42 Water Year = 2024 First Quartile = 101% Median = 106% Third Quartile = 110% Number of Observations = 42 Water Year = 2024 First Quartile = 101% Median = 106% Third Quartile = 110% Number of Observations = 42 Water Year = 2024 First Quartile = 101% Median = 106% Third Quartile = 110% Number of Observations = 42 Water Year = 2024 First Quartile = 101% Median = 106% Third Quartile = 110% Number of Observations = 42 Water Year = 2024 First Quartile = 101% Median = 106% Third Quartile = 110% Number of Observations = 42 Water Year = 2023 First Quartile = 101% Median = 106% Third Quartile = 111% Number of Observations = 48 Water Year = 2023 First Quartile = 101% Median = 106% Third Quartile = 111% Number of Observations = 48 Water Year = 2023 First Quartile = 101% Median = 106% Third Quartile = 111% Number of Observations = 48 Water Year = 2023 First Quartile = 101% Median = 106% Third Quartile = 111% Number of Observations = 48 Water Year = 2023 First Quartile = 101% Median = 106% Third Quartile = 111% Number of Observations = 48 Water Year = 2023 First Quartile = 101% Median = 106% Third Quartile = 111% Number of Observations = 48 Water Year = 2023 First Quartile = 101% Median = 106% Third Quartile = 111% Number of Observations = 48 Water Year = 2023 First Quartile = 101% Median = 106% Third Quartile = 111% Number of Observations = 48 Water Year = 2022 First Quartile = 97% Median = 100% Third Quartile = 106% Number of Observations = 47 Water Year = 2022 First Quartile = 97% Median = 100% Third Quartile = 106% Number of Observations = 47 Water Year = 2022 First Quartile = 97% Median = 100% Third Quartile = 106% Number of Observations = 47 Water Year = 2022 First Quartile = 97% Median = 100% Third Quartile = 106% Number of Observations = 47 Water Year = 2022 First Quartile = 97% Median = 100% Third Quartile = 106% Number of Observations = 47 Water Year = 2022 First Quartile = 97% Median = 100% Third Quartile = 106% Number of Observations = 47 Water Year = 2022 First Quartile = 97% Median = 100% Third Quartile = 106% Number of Observations = 47 Water Year = 2022 First Quartile = 97% Median = 100% Third Quartile = 106% Number of Observations = 47 Water Year = 2021 First Quartile = 96% Median = 99% Third Quartile = 104% Number of Observations = 48 Water Year = 2021 First Quartile = 96% Median = 99% Third Quartile = 104% Number of Observations = 48 Water Year = 2021 First Quartile = 96% Median = 99% Third Quartile = 104% Number of Observations = 48 Water Year = 2021 First Quartile = 96% Median = 99% Third Quartile = 104% Number of Observations = 48 Water Year = 2021 First Quartile = 96% Median = 99% Third Quartile = 104% Number of Observations = 48 Water Year = 2021 First Quartile = 96% Median = 99% Third Quartile = 104% Number of Observations = 48 Water Year = 2021 First Quartile = 96% Median = 99% Third Quartile = 104% Number of Observations = 48 Water Year = 2021 First Quartile = 96% Median = 99% Third Quartile = 104% Number of Observations = 48 Water Year = 2020 First Quartile = 94% Median = 98% Third Quartile = 102% Number of Observations = 44 Water Year = 2020 First Quartile = 94% Median = 98% Third Quartile = 102% Number of Observations = 44 Water Year = 2020 First Quartile = 94% Median = 98% Third Quartile = 102% Number of Observations = 44 Water Year = 2020 First Quartile = 94% Median = 98% Third Quartile = 102% Number of Observations = 44 Water Year = 2020 First Quartile = 94% Median = 98% Third Quartile = 102% Number of Observations = 44 Water Year = 2020 First Quartile = 94% Median = 98% Third Quartile = 102% Number of Observations = 44 Water Year = 2020 First Quartile = 94% Median = 98% Third Quartile = 102% Number of Observations = 44 Water Year = 2020 First Quartile = 94% Median = 98% Third Quartile = 102% Number of Observations = 44 Water Year = 2019 First Quartile = 93% Median = 102% Third Quartile = 107% Number of Observations = 40 Water Year = 2019 First Quartile = 93% Median = 102% Third Quartile = 107% Number of Observations = 40 Water Year = 2019 First Quartile = 93% Median = 102% Third Quartile = 107% Number of Observations = 40 Water Year = 2019 First Quartile = 93% Median = 102% Third Quartile = 107% Number of Observations = 40 Water Year = 2019 First Quartile = 93% Median = 102% Third Quartile = 107% Number of Observations = 40 Water Year = 2019 First Quartile = 93% Median = 102% Third Quartile = 107% Number of Observations = 40 Water Year = 2019 First Quartile = 93% Median = 102% Third Quartile = 107% Number of Observations = 40 Water Year = 2019 First Quartile = 93% Median = 102% Third Quartile = 107% Number of Observations = 40 Water Year = 2017 First Quartile = 85% Median = 101% Third Quartile = 109% Number of Observations = 48 Water Year = 2017 First Quartile = 85% Median = 101% Third Quartile = 109% Number of Observations = 48 Water Year = 2017 First Quartile = 85% Median = 101% Third Quartile = 109% Number of Observations = 48 Water Year = 2017 First Quartile = 85% Median = 101% Third Quartile = 109% Number of Observations = 48 Water Year = 2017 First Quartile = 85% Median = 101% Third Quartile = 109% Number of Observations = 48 Water Year = 2017 First Quartile = 85% Median = 101% Third Quartile = 109% Number of Observations = 48 Water Year = 2017 First Quartile = 85% Median = 101% Third Quartile = 109% Number of Observations = 48 Water Year = 2017 First Quartile = 85% Median = 101% Third Quartile = 109% Number of Observations = 48 Water Year = 2016 First Quartile = 73% Median = 100% Third Quartile = 112% Number of Observations = 48 Water Year = 2016 First Quartile = 73% Median = 100% Third Quartile = 112% Number of Observations = 48 Water Year = 2016 First Quartile = 73% Median = 100% Third Quartile = 112% Number of Observations = 48 Water Year = 2016 First Quartile = 73% Median = 100% Third Quartile = 112% Number of Observations = 48 Water Year = 2016 First Quartile = 73% Median = 100% Third Quartile = 112% Number of Observations = 48 Water Year = 2016 First Quartile = 73% Median = 100% Third Quartile = 112% Number of Observations = 48 Water Year = 2016 First Quartile = 73% Median = 100% Third Quartile = 112% Number of Observations = 48 Water Year = 2016 First Quartile = 73% Median = 100% Third Quartile = 112% Number of Observations = 48 Water Year = 2015 First Quartile = 70% Median = 83% Third Quartile = 90% Number of Observations = 22 Water Year = 2015 First Quartile = 70% Median = 83% Third Quartile = 90% Number of Observations = 22 Water Year = 2015 First Quartile = 70% Median = 83% Third Quartile = 90% Number of Observations = 22 Water Year = 2015 First Quartile = 70% Median = 83% Third Quartile = 90% Number of Observations = 22 Water Year = 2015 First Quartile = 70% Median = 83% Third Quartile = 90% Number of Observations = 22 Water Year = 2015 First Quartile = 70% Median = 83% Third Quartile = 90% Number of Observations = 22 Water Year = 2015 First Quartile = 70% Median = 83% Third Quartile = 90% Number of Observations = 22 Water Year = 2015 First Quartile = 70% Median = 83% Third Quartile = 90% Number of Observations = 22 Y = 1
The SGPlot Procedure

Percent Recovery Statistics for Nickel, unfltd, cICP-MS, recov

Analyte Parm-meth Code Water Year # of
Samples		 25th Pctl 50th Pctl
(Median)		 75th Pctl
Nickel, unfltd, cICP-MS, recov 01067PLM77 2015 22 56.8% 82.5% 90.2%
    2016 48 71.9% 99.8% 111.5%
    2017 48 84.6% 101.4% 108.7%
    2019 40 92.7% 102.0% 106.8%
    2020 44 94.1% 97.7% 101.5%
    2021 48 96.3% 99.2% 104.0%
    2022 47 97.1% 99.9% 106.3%
    2023 48 100.7% 106.5% 111.3%
    2024 42 100.5% 105.7% 109.9%

Hover over boxplot or outliers for additional information
Chart generated 03/27/2025
Charts and data secured from this U.S. Geological Survey (USGS) web page (identified as IBSP) have not received official USGS approval and as such are provisional and subject to revision. The charts and data are released on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use.


- Selenium, fltd, cICP-MS -
Lab: NWQL, PCode: 01145, MCode: PLM10
Analysis Dates: 10/09/09 through 09/28/24
Open Data Set
Boxplot Description

Water Year = 2024 plotvalue = 89% pctrecov = 89% Water Year = 2024 plotvalue = 89% pctrecov = 89% Water Year = 2024 plotvalue = 88% pctrecov = 88% Water Year = 2024 plotvalue = 85% pctrecov = 85% Water Year = 2024 plotvalue = 85% pctrecov = 85% Water Year = 2022 plotvalue = 70% pctrecov = 59% Water Year = 2021 plotvalue = 114% pctrecov = 114% Water Year = 2021 plotvalue = 119% pctrecov = 119% Water Year = 2021 plotvalue = 70% pctrecov = 51% Water Year = 2021 plotvalue = 70% pctrecov = 49% Water Year = 2021 plotvalue = 70% pctrecov = 55% Water Year = 2021 plotvalue = 70% pctrecov = 56% Water Year = 2021 plotvalue = 70% pctrecov = 52% Water Year = 2021 plotvalue = 70% pctrecov = 49% Water Year = 2021 plotvalue = 70% pctrecov = 52% Water Year = 2021 plotvalue = 70% pctrecov = 55% Water Year = 2021 plotvalue = 70% pctrecov = 52% Water Year = 2021 plotvalue = 70% pctrecov = 51% Water Year = 2021 plotvalue = 70% pctrecov = 49% Water Year = 2021 plotvalue = 70% pctrecov = 54% Water Year = 2021 plotvalue = 70% pctrecov = 48% Water Year = 2021 plotvalue = 70% pctrecov = 48% Water Year = 2010 plotvalue = 129% pctrecov = 129% Water Year = 2010 plotvalue = 70% pctrecov = 3% Water Year = 2024 First Quartile = 100% Median = 104% Third Quartile = 107% Number of Observations = 73 Water Year = 2024 First Quartile = 100% Median = 104% Third Quartile = 107% Number of Observations = 73 Water Year = 2024 First Quartile = 100% Median = 104% Third Quartile = 107% Number of Observations = 73 Water Year = 2024 First Quartile = 100% Median = 104% Third Quartile = 107% Number of Observations = 73 Water Year = 2024 First Quartile = 100% Median = 104% Third Quartile = 107% Number of Observations = 73 Water Year = 2024 First Quartile = 100% Median = 104% Third Quartile = 107% Number of Observations = 73 Water Year = 2024 First Quartile = 100% Median = 104% Third Quartile = 107% Number of Observations = 73 Water Year = 2024 First Quartile = 100% Median = 104% Third Quartile = 107% Number of Observations = 73 Water Year = 2023 First Quartile = 95% Median = 100% Third Quartile = 109% Number of Observations = 89 Water Year = 2023 First Quartile = 95% Median = 100% Third Quartile = 109% Number of Observations = 89 Water Year = 2023 First Quartile = 95% Median = 100% Third Quartile = 109% Number of Observations = 89 Water Year = 2023 First Quartile = 95% Median = 100% Third Quartile = 109% Number of Observations = 89 Water Year = 2023 First Quartile = 95% Median = 100% Third Quartile = 109% Number of Observations = 89 Water Year = 2023 First Quartile = 95% Median = 100% Third Quartile = 109% Number of Observations = 89 Water Year = 2023 First Quartile = 95% Median = 100% Third Quartile = 109% Number of Observations = 89 Water Year = 2023 First Quartile = 95% Median = 100% Third Quartile = 109% Number of Observations = 89 Water Year = 2022 First Quartile = 93% Median = 97% Third Quartile = 108% Number of Observations = 89 Water Year = 2022 First Quartile = 93% Median = 97% Third Quartile = 108% Number of Observations = 89 Water Year = 2022 First Quartile = 93% Median = 97% Third Quartile = 108% Number of Observations = 89 Water Year = 2022 First Quartile = 93% Median = 97% Third Quartile = 108% Number of Observations = 89 Water Year = 2022 First Quartile = 93% Median = 97% Third Quartile = 108% Number of Observations = 89 Water Year = 2022 First Quartile = 93% Median = 97% Third Quartile = 108% Number of Observations = 89 Water Year = 2022 First Quartile = 93% Median = 97% Third Quartile = 108% Number of Observations = 89 Water Year = 2022 First Quartile = 93% Median = 97% Third Quartile = 108% Number of Observations = 89 Water Year = 2021 First Quartile = 93% Median = 97% Third Quartile = 101% Number of Observations = 90 Water Year = 2021 First Quartile = 93% Median = 97% Third Quartile = 101% Number of Observations = 90 Water Year = 2021 First Quartile = 93% Median = 97% Third Quartile = 101% Number of Observations = 90 Water Year = 2021 First Quartile = 93% Median = 97% Third Quartile = 101% Number of Observations = 90 Water Year = 2021 First Quartile = 93% Median = 97% Third Quartile = 101% Number of Observations = 90 Water Year = 2021 First Quartile = 93% Median = 97% Third Quartile = 101% Number of Observations = 90 Water Year = 2021 First Quartile = 93% Median = 97% Third Quartile = 101% Number of Observations = 90 Water Year = 2021 First Quartile = 93% Median = 97% Third Quartile = 101% Number of Observations = 90 Water Year = 2020 First Quartile = 70% Median = 96% Third Quartile = 100% Number of Observations = 86 Water Year = 2020 First Quartile = 70% Median = 96% Third Quartile = 100% Number of Observations = 86 Water Year = 2020 First Quartile = 70% Median = 96% Third Quartile = 100% Number of Observations = 86 Water Year = 2020 First Quartile = 70% Median = 96% Third Quartile = 100% Number of Observations = 86 Water Year = 2020 First Quartile = 70% Median = 96% Third Quartile = 100% Number of Observations = 86 Water Year = 2020 First Quartile = 70% Median = 96% Third Quartile = 100% Number of Observations = 86 Water Year = 2020 First Quartile = 70% Median = 96% Third Quartile = 100% Number of Observations = 86 Water Year = 2020 First Quartile = 70% Median = 96% Third Quartile = 100% Number of Observations = 86 Water Year = 2019 First Quartile = 70% Median = 99% Third Quartile = 103% Number of Observations = 78 Water Year = 2019 First Quartile = 70% Median = 99% Third Quartile = 103% Number of Observations = 78 Water Year = 2019 First Quartile = 70% Median = 99% Third Quartile = 103% Number of Observations = 78 Water Year = 2019 First Quartile = 70% Median = 99% Third Quartile = 103% Number of Observations = 78 Water Year = 2019 First Quartile = 70% Median = 99% Third Quartile = 103% Number of Observations = 78 Water Year = 2019 First Quartile = 70% Median = 99% Third Quartile = 103% Number of Observations = 78 Water Year = 2019 First Quartile = 70% Median = 99% Third Quartile = 103% Number of Observations = 78 Water Year = 2019 First Quartile = 70% Median = 99% Third Quartile = 103% Number of Observations = 78 Water Year = 2017 First Quartile = 77% Median = 93% Third Quartile = 101% Number of Observations = 90 Water Year = 2017 First Quartile = 77% Median = 93% Third Quartile = 101% Number of Observations = 90 Water Year = 2017 First Quartile = 77% Median = 93% Third Quartile = 101% Number of Observations = 90 Water Year = 2017 First Quartile = 77% Median = 93% Third Quartile = 101% Number of Observations = 90 Water Year = 2017 First Quartile = 77% Median = 93% Third Quartile = 101% Number of Observations = 90 Water Year = 2017 First Quartile = 77% Median = 93% Third Quartile = 101% Number of Observations = 90 Water Year = 2017 First Quartile = 77% Median = 93% Third Quartile = 101% Number of Observations = 90 Water Year = 2017 First Quartile = 77% Median = 93% Third Quartile = 101% Number of Observations = 90 Water Year = 2016 First Quartile = 70% Median = 77% Third Quartile = 83% Number of Observations = 90 Water Year = 2016 First Quartile = 70% Median = 77% Third Quartile = 83% Number of Observations = 90 Water Year = 2016 First Quartile = 70% Median = 77% Third Quartile = 83% Number of Observations = 90 Water Year = 2016 First Quartile = 70% Median = 77% Third Quartile = 83% Number of Observations = 90 Water Year = 2016 First Quartile = 70% Median = 77% Third Quartile = 83% Number of Observations = 90 Water Year = 2016 First Quartile = 70% Median = 77% Third Quartile = 83% Number of Observations = 90 Water Year = 2016 First Quartile = 70% Median = 77% Third Quartile = 83% Number of Observations = 90 Water Year = 2016 First Quartile = 70% Median = 77% Third Quartile = 83% Number of Observations = 90 Water Year = 2015 First Quartile = 75% Median = 82% Third Quartile = 87% Number of Observations = 90 Water Year = 2015 First Quartile = 75% Median = 82% Third Quartile = 87% Number of Observations = 90 Water Year = 2015 First Quartile = 75% Median = 82% Third Quartile = 87% Number of Observations = 90 Water Year = 2015 First Quartile = 75% Median = 82% Third Quartile = 87% Number of Observations = 90 Water Year = 2015 First Quartile = 75% Median = 82% Third Quartile = 87% Number of Observations = 90 Water Year = 2015 First Quartile = 75% Median = 82% Third Quartile = 87% Number of Observations = 90 Water Year = 2015 First Quartile = 75% Median = 82% Third Quartile = 87% Number of Observations = 90 Water Year = 2015 First Quartile = 75% Median = 82% Third Quartile = 87% Number of Observations = 90 Water Year = 2014 First Quartile = 70% Median = 81% Third Quartile = 90% Number of Observations = 83 Water Year = 2014 First Quartile = 70% Median = 81% Third Quartile = 90% Number of Observations = 83 Water Year = 2014 First Quartile = 70% Median = 81% Third Quartile = 90% Number of Observations = 83 Water Year = 2014 First Quartile = 70% Median = 81% Third Quartile = 90% Number of Observations = 83 Water Year = 2014 First Quartile = 70% Median = 81% Third Quartile = 90% Number of Observations = 83 Water Year = 2014 First Quartile = 70% Median = 81% Third Quartile = 90% Number of Observations = 83 Water Year = 2014 First Quartile = 70% Median = 81% Third Quartile = 90% Number of Observations = 83 Water Year = 2014 First Quartile = 70% Median = 81% Third Quartile = 90% Number of Observations = 83 Water Year = 2013 First Quartile = 92% Median = 97% Third Quartile = 101% Number of Observations = 108 Water Year = 2013 First Quartile = 92% Median = 97% Third Quartile = 101% Number of Observations = 108 Water Year = 2013 First Quartile = 92% Median = 97% Third Quartile = 101% Number of Observations = 108 Water Year = 2013 First Quartile = 92% Median = 97% Third Quartile = 101% Number of Observations = 108 Water Year = 2013 First Quartile = 92% Median = 97% Third Quartile = 101% Number of Observations = 108 Water Year = 2013 First Quartile = 92% Median = 97% Third Quartile = 101% Number of Observations = 108 Water Year = 2013 First Quartile = 92% Median = 97% Third Quartile = 101% Number of Observations = 108 Water Year = 2013 First Quartile = 92% Median = 97% Third Quartile = 101% Number of Observations = 108 Water Year = 2012 First Quartile = 76% Median = 95% Third Quartile = 103% Number of Observations = 132 Water Year = 2012 First Quartile = 76% Median = 95% Third Quartile = 103% Number of Observations = 132 Water Year = 2012 First Quartile = 76% Median = 95% Third Quartile = 103% Number of Observations = 132 Water Year = 2012 First Quartile = 76% Median = 95% Third Quartile = 103% Number of Observations = 132 Water Year = 2012 First Quartile = 76% Median = 95% Third Quartile = 103% Number of Observations = 132 Water Year = 2012 First Quartile = 76% Median = 95% Third Quartile = 103% Number of Observations = 132 Water Year = 2012 First Quartile = 76% Median = 95% Third Quartile = 103% Number of Observations = 132 Water Year = 2012 First Quartile = 76% Median = 95% Third Quartile = 103% Number of Observations = 132 Water Year = 2011 First Quartile = 82% Median = 95% Third Quartile = 100% Number of Observations = 131 Water Year = 2011 First Quartile = 82% Median = 95% Third Quartile = 100% Number of Observations = 131 Water Year = 2011 First Quartile = 82% Median = 95% Third Quartile = 100% Number of Observations = 131 Water Year = 2011 First Quartile = 82% Median = 95% Third Quartile = 100% Number of Observations = 131 Water Year = 2011 First Quartile = 82% Median = 95% Third Quartile = 100% Number of Observations = 131 Water Year = 2011 First Quartile = 82% Median = 95% Third Quartile = 100% Number of Observations = 131 Water Year = 2011 First Quartile = 82% Median = 95% Third Quartile = 100% Number of Observations = 131 Water Year = 2011 First Quartile = 82% Median = 95% Third Quartile = 100% Number of Observations = 131 Water Year = 2010 First Quartile = 96% Median = 104% Third Quartile = 108% Number of Observations = 132 Water Year = 2010 First Quartile = 96% Median = 104% Third Quartile = 108% Number of Observations = 132 Water Year = 2010 First Quartile = 96% Median = 104% Third Quartile = 108% Number of Observations = 132 Water Year = 2010 First Quartile = 96% Median = 104% Third Quartile = 108% Number of Observations = 132 Water Year = 2010 First Quartile = 96% Median = 104% Third Quartile = 108% Number of Observations = 132 Water Year = 2010 First Quartile = 96% Median = 104% Third Quartile = 108% Number of Observations = 132 Water Year = 2010 First Quartile = 96% Median = 104% Third Quartile = 108% Number of Observations = 132 Water Year = 2010 First Quartile = 96% Median = 104% Third Quartile = 108% Number of Observations = 132 Y = 1
The SGPlot Procedure

Percent Recovery Statistics for Selenium, fltd, cICP-MS

Analyte Parm-meth Code Water Year # of
Samples		 25th Pctl 50th Pctl
(Median)		 75th Pctl
Selenium, fltd, cICP-MS 01145PLM10 2010 132 95.7% 103.6% 108.5%
    2011 131 82.5% 95.3% 99.8%
    2012 132 75.9% 95.0% 103.3%
    2013 108 91.9% 96.6% 101.0%
    2014 83 58.1% 80.7% 90.2%
    2015 90 75.1% 81.7% 87.5%
    2016 90 70.2% 77.2% 82.5%
    2017 90 77.1% 93.2% 101.3%
    2019 78 65.5% 99.3% 102.6%
    2020 86 67.0% 96.2% 100.5%
    2021 90 92.7% 97.2% 101.0%
    2022 89 93.3% 97.3% 108.2%
    2023 89 94.5% 100.5% 108.9%
    2024 73 100.1% 104.1% 107.4%

Hover over boxplot or outliers for additional information
Chart generated 03/27/2025
Charts and data secured from this U.S. Geological Survey (USGS) web page (identified as IBSP) have not received official USGS approval and as such are provisional and subject to revision. The charts and data are released on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use.


- Selenium, unfltd, cICP-MS, recov -
Lab: NWQL, PCode: 01147, MCode: PLM11
Analysis Dates: 10/05/09 through 04/30/15
Open Data Set
Boxplot Description

Water Year = 2014 plotvalue = 93% pctrecov = 93% Water Year = 2014 plotvalue = 94% pctrecov = 94% Water Year = 2014 plotvalue = 94% pctrecov = 94% Water Year = 2014 plotvalue = 97% pctrecov = 97% Water Year = 2014 plotvalue = 99% pctrecov = 99% Water Year = 2013 plotvalue = 102% pctrecov = 102% Water Year = 2013 plotvalue = 106% pctrecov = 106% Water Year = 2013 plotvalue = 109% pctrecov = 109% Water Year = 2013 plotvalue = 110% pctrecov = 110% Water Year = 2013 plotvalue = 115% pctrecov = 115% Water Year = 2013 plotvalue = 115% pctrecov = 115% Water Year = 2013 plotvalue = 122% pctrecov = 122% Water Year = 2013 plotvalue = 74% pctrecov = 74% Water Year = 2012 plotvalue = 130% pctrecov = 193% Water Year = 2010 plotvalue = 121% pctrecov = 121% Water Year = 2009 plotvalue = 89% pctrecov = 89% Water Year = 2015 First Quartile = 70% Median = 75% Third Quartile = 79% Number of Observations = 34 Water Year = 2015 First Quartile = 70% Median = 75% Third Quartile = 79% Number of Observations = 34 Water Year = 2015 First Quartile = 70% Median = 75% Third Quartile = 79% Number of Observations = 34 Water Year = 2015 First Quartile = 70% Median = 75% Third Quartile = 79% Number of Observations = 34 Water Year = 2015 First Quartile = 70% Median = 75% Third Quartile = 79% Number of Observations = 34 Water Year = 2015 First Quartile = 70% Median = 75% Third Quartile = 79% Number of Observations = 34 Water Year = 2015 First Quartile = 70% Median = 75% Third Quartile = 79% Number of Observations = 34 Water Year = 2015 First Quartile = 70% Median = 75% Third Quartile = 79% Number of Observations = 34 Water Year = 2014 First Quartile = 70% Median = 72% Third Quartile = 79% Number of Observations = 83 Water Year = 2014 First Quartile = 70% Median = 72% Third Quartile = 79% Number of Observations = 83 Water Year = 2014 First Quartile = 70% Median = 72% Third Quartile = 79% Number of Observations = 83 Water Year = 2014 First Quartile = 70% Median = 72% Third Quartile = 79% Number of Observations = 83 Water Year = 2014 First Quartile = 70% Median = 72% Third Quartile = 79% Number of Observations = 83 Water Year = 2014 First Quartile = 70% Median = 72% Third Quartile = 79% Number of Observations = 83 Water Year = 2014 First Quartile = 70% Median = 72% Third Quartile = 79% Number of Observations = 83 Water Year = 2014 First Quartile = 70% Median = 72% Third Quartile = 79% Number of Observations = 83 Water Year = 2013 First Quartile = 86% Median = 89% Third Quartile = 92% Number of Observations = 108 Water Year = 2013 First Quartile = 86% Median = 89% Third Quartile = 92% Number of Observations = 108 Water Year = 2013 First Quartile = 86% Median = 89% Third Quartile = 92% Number of Observations = 108 Water Year = 2013 First Quartile = 86% Median = 89% Third Quartile = 92% Number of Observations = 108 Water Year = 2013 First Quartile = 86% Median = 89% Third Quartile = 92% Number of Observations = 108 Water Year = 2013 First Quartile = 86% Median = 89% Third Quartile = 92% Number of Observations = 108 Water Year = 2013 First Quartile = 86% Median = 89% Third Quartile = 92% Number of Observations = 108 Water Year = 2013 First Quartile = 86% Median = 89% Third Quartile = 92% Number of Observations = 108 Water Year = 2012 First Quartile = 70% Median = 84% Third Quartile = 89% Number of Observations = 83 Water Year = 2012 First Quartile = 70% Median = 84% Third Quartile = 89% Number of Observations = 83 Water Year = 2012 First Quartile = 70% Median = 84% Third Quartile = 89% Number of Observations = 83 Water Year = 2012 First Quartile = 70% Median = 84% Third Quartile = 89% Number of Observations = 83 Water Year = 2012 First Quartile = 70% Median = 84% Third Quartile = 89% Number of Observations = 83 Water Year = 2012 First Quartile = 70% Median = 84% Third Quartile = 89% Number of Observations = 83 Water Year = 2012 First Quartile = 70% Median = 84% Third Quartile = 89% Number of Observations = 83 Water Year = 2012 First Quartile = 70% Median = 84% Third Quartile = 89% Number of Observations = 83 Water Year = 2011 First Quartile = 75% Median = 86% Third Quartile = 90% Number of Observations = 130 Water Year = 2011 First Quartile = 75% Median = 86% Third Quartile = 90% Number of Observations = 130 Water Year = 2011 First Quartile = 75% Median = 86% Third Quartile = 90% Number of Observations = 130 Water Year = 2011 First Quartile = 75% Median = 86% Third Quartile = 90% Number of Observations = 130 Water Year = 2011 First Quartile = 75% Median = 86% Third Quartile = 90% Number of Observations = 130 Water Year = 2011 First Quartile = 75% Median = 86% Third Quartile = 90% Number of Observations = 130 Water Year = 2011 First Quartile = 75% Median = 86% Third Quartile = 90% Number of Observations = 130 Water Year = 2011 First Quartile = 75% Median = 86% Third Quartile = 90% Number of Observations = 130 Water Year = 2010 First Quartile = 86% Median = 89% Third Quartile = 92% Number of Observations = 84 Water Year = 2010 First Quartile = 86% Median = 89% Third Quartile = 92% Number of Observations = 84 Water Year = 2010 First Quartile = 86% Median = 89% Third Quartile = 92% Number of Observations = 84 Water Year = 2010 First Quartile = 86% Median = 89% Third Quartile = 92% Number of Observations = 84 Water Year = 2010 First Quartile = 86% Median = 89% Third Quartile = 92% Number of Observations = 84 Water Year = 2010 First Quartile = 86% Median = 89% Third Quartile = 92% Number of Observations = 84 Water Year = 2010 First Quartile = 86% Median = 89% Third Quartile = 92% Number of Observations = 84 Water Year = 2010 First Quartile = 86% Median = 89% Third Quartile = 92% Number of Observations = 84 Water Year = 2009 First Quartile = 95% Median = 96% Third Quartile = 98% Number of Observations = 9 Water Year = 2009 First Quartile = 95% Median = 96% Third Quartile = 98% Number of Observations = 9 Water Year = 2009 First Quartile = 95% Median = 96% Third Quartile = 98% Number of Observations = 9 Water Year = 2009 First Quartile = 95% Median = 96% Third Quartile = 98% Number of Observations = 9 Water Year = 2009 First Quartile = 95% Median = 96% Third Quartile = 98% Number of Observations = 9 Water Year = 2009 First Quartile = 95% Median = 96% Third Quartile = 98% Number of Observations = 9 Water Year = 2009 First Quartile = 95% Median = 96% Third Quartile = 98% Number of Observations = 9 Water Year = 2009 First Quartile = 95% Median = 96% Third Quartile = 98% Number of Observations = 9 Y = 1
The SGPlot Procedure

Percent Recovery Statistics for Selenium, unfltd, cICP-MS, recov

Analyte Parm-meth Code Water Year # of
Samples		 25th Pctl 50th Pctl
(Median)		 75th Pctl
Selenium, unfltd, cICP-MS, recov 01147PLM11 2009 9 94.6% 95.7% 98.1%
    2010 84 86.3% 88.6% 92.1%
    2011 130 75.4% 86.4% 89.7%
    2012 83 67.9% 84.1% 89.4%
    2013 108 86.0% 88.9% 91.8%
    2014 83 52.5% 71.8% 79.0%
    2015 34 69.8% 74.8% 78.8%

Hover over boxplot or outliers for additional information
Chart generated 03/27/2025
Charts and data secured from this U.S. Geological Survey (USGS) web page (identified as IBSP) have not received official USGS approval and as such are provisional and subject to revision. The charts and data are released on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use.


- Selenium, unfltd, cICP-MS, recov -
Lab: NWQL, PCode: 01147, MCode: PLM77
Analysis Dates: 05/12/15 through 09/25/24
Open Data Set
Boxplot Description

Water Year = 2024 plotvalue = 86% pctrecov = 86% Water Year = 2024 plotvalue = 86% pctrecov = 86% Water Year = 2024 plotvalue = 84% pctrecov = 84% Water Year = 2024 plotvalue = 84% pctrecov = 84% Water Year = 2021 plotvalue = 109% pctrecov = 109% Water Year = 2021 plotvalue = 109% pctrecov = 109% Water Year = 2021 plotvalue = 112% pctrecov = 112% Water Year = 2021 plotvalue = 113% pctrecov = 113% Water Year = 2021 plotvalue = 70% pctrecov = 48% Water Year = 2021 plotvalue = 70% pctrecov = 51% Water Year = 2021 plotvalue = 70% pctrecov = 51% Water Year = 2021 plotvalue = 70% pctrecov = 49% Water Year = 2021 plotvalue = 70% pctrecov = 50% Water Year = 2021 plotvalue = 70% pctrecov = 51% Water Year = 2021 plotvalue = 70% pctrecov = 53% Water Year = 2021 plotvalue = 70% pctrecov = 47% Water Year = 2024 First Quartile = 96% Median = 100% Third Quartile = 103% Number of Observations = 42 Water Year = 2024 First Quartile = 96% Median = 100% Third Quartile = 103% Number of Observations = 42 Water Year = 2024 First Quartile = 96% Median = 100% Third Quartile = 103% Number of Observations = 42 Water Year = 2024 First Quartile = 96% Median = 100% Third Quartile = 103% Number of Observations = 42 Water Year = 2024 First Quartile = 96% Median = 100% Third Quartile = 103% Number of Observations = 42 Water Year = 2024 First Quartile = 96% Median = 100% Third Quartile = 103% Number of Observations = 42 Water Year = 2024 First Quartile = 96% Median = 100% Third Quartile = 103% Number of Observations = 42 Water Year = 2024 First Quartile = 96% Median = 100% Third Quartile = 103% Number of Observations = 42 Water Year = 2023 First Quartile = 92% Median = 100% Third Quartile = 106% Number of Observations = 48 Water Year = 2023 First Quartile = 92% Median = 100% Third Quartile = 106% Number of Observations = 48 Water Year = 2023 First Quartile = 92% Median = 100% Third Quartile = 106% Number of Observations = 48 Water Year = 2023 First Quartile = 92% Median = 100% Third Quartile = 106% Number of Observations = 48 Water Year = 2023 First Quartile = 92% Median = 100% Third Quartile = 106% Number of Observations = 48 Water Year = 2023 First Quartile = 92% Median = 100% Third Quartile = 106% Number of Observations = 48 Water Year = 2023 First Quartile = 92% Median = 100% Third Quartile = 106% Number of Observations = 48 Water Year = 2023 First Quartile = 92% Median = 100% Third Quartile = 106% Number of Observations = 48 Water Year = 2022 First Quartile = 90% Median = 95% Third Quartile = 104% Number of Observations = 47 Water Year = 2022 First Quartile = 90% Median = 95% Third Quartile = 104% Number of Observations = 47 Water Year = 2022 First Quartile = 90% Median = 95% Third Quartile = 104% Number of Observations = 47 Water Year = 2022 First Quartile = 90% Median = 95% Third Quartile = 104% Number of Observations = 47 Water Year = 2022 First Quartile = 90% Median = 95% Third Quartile = 104% Number of Observations = 47 Water Year = 2022 First Quartile = 90% Median = 95% Third Quartile = 104% Number of Observations = 47 Water Year = 2022 First Quartile = 90% Median = 95% Third Quartile = 104% Number of Observations = 47 Water Year = 2022 First Quartile = 90% Median = 95% Third Quartile = 104% Number of Observations = 47 Water Year = 2021 First Quartile = 91% Median = 95% Third Quartile = 97% Number of Observations = 48 Water Year = 2021 First Quartile = 91% Median = 95% Third Quartile = 97% Number of Observations = 48 Water Year = 2021 First Quartile = 91% Median = 95% Third Quartile = 97% Number of Observations = 48 Water Year = 2021 First Quartile = 91% Median = 95% Third Quartile = 97% Number of Observations = 48 Water Year = 2021 First Quartile = 91% Median = 95% Third Quartile = 97% Number of Observations = 48 Water Year = 2021 First Quartile = 91% Median = 95% Third Quartile = 97% Number of Observations = 48 Water Year = 2021 First Quartile = 91% Median = 95% Third Quartile = 97% Number of Observations = 48 Water Year = 2021 First Quartile = 91% Median = 95% Third Quartile = 97% Number of Observations = 48 Water Year = 2020 First Quartile = 70% Median = 94% Third Quartile = 97% Number of Observations = 44 Water Year = 2020 First Quartile = 70% Median = 94% Third Quartile = 97% Number of Observations = 44 Water Year = 2020 First Quartile = 70% Median = 94% Third Quartile = 97% Number of Observations = 44 Water Year = 2020 First Quartile = 70% Median = 94% Third Quartile = 97% Number of Observations = 44 Water Year = 2020 First Quartile = 70% Median = 94% Third Quartile = 97% Number of Observations = 44 Water Year = 2020 First Quartile = 70% Median = 94% Third Quartile = 97% Number of Observations = 44 Water Year = 2020 First Quartile = 70% Median = 94% Third Quartile = 97% Number of Observations = 44 Water Year = 2020 First Quartile = 70% Median = 94% Third Quartile = 97% Number of Observations = 44 Water Year = 2019 First Quartile = 70% Median = 99% Third Quartile = 103% Number of Observations = 55 Water Year = 2019 First Quartile = 70% Median = 99% Third Quartile = 103% Number of Observations = 55 Water Year = 2019 First Quartile = 70% Median = 99% Third Quartile = 103% Number of Observations = 55 Water Year = 2019 First Quartile = 70% Median = 99% Third Quartile = 103% Number of Observations = 55 Water Year = 2019 First Quartile = 70% Median = 99% Third Quartile = 103% Number of Observations = 55 Water Year = 2019 First Quartile = 70% Median = 99% Third Quartile = 103% Number of Observations = 55 Water Year = 2019 First Quartile = 70% Median = 99% Third Quartile = 103% Number of Observations = 55 Water Year = 2019 First Quartile = 70% Median = 99% Third Quartile = 103% Number of Observations = 55 Water Year = 2017 First Quartile = 72% Median = 91% Third Quartile = 99% Number of Observations = 66 Water Year = 2017 First Quartile = 72% Median = 91% Third Quartile = 99% Number of Observations = 66 Water Year = 2017 First Quartile = 72% Median = 91% Third Quartile = 99% Number of Observations = 66 Water Year = 2017 First Quartile = 72% Median = 91% Third Quartile = 99% Number of Observations = 66 Water Year = 2017 First Quartile = 72% Median = 91% Third Quartile = 99% Number of Observations = 66 Water Year = 2017 First Quartile = 72% Median = 91% Third Quartile = 99% Number of Observations = 66 Water Year = 2017 First Quartile = 72% Median = 91% Third Quartile = 99% Number of Observations = 66 Water Year = 2017 First Quartile = 72% Median = 91% Third Quartile = 99% Number of Observations = 66 Water Year = 2016 First Quartile = 71% Median = 79% Third Quartile = 85% Number of Observations = 66 Water Year = 2016 First Quartile = 71% Median = 79% Third Quartile = 85% Number of Observations = 66 Water Year = 2016 First Quartile = 71% Median = 79% Third Quartile = 85% Number of Observations = 66 Water Year = 2016 First Quartile = 71% Median = 79% Third Quartile = 85% Number of Observations = 66 Water Year = 2016 First Quartile = 71% Median = 79% Third Quartile = 85% Number of Observations = 66 Water Year = 2016 First Quartile = 71% Median = 79% Third Quartile = 85% Number of Observations = 66 Water Year = 2016 First Quartile = 71% Median = 79% Third Quartile = 85% Number of Observations = 66 Water Year = 2016 First Quartile = 71% Median = 79% Third Quartile = 85% Number of Observations = 66 Water Year = 2015 First Quartile = 71% Median = 76% Third Quartile = 84% Number of Observations = 32 Water Year = 2015 First Quartile = 71% Median = 76% Third Quartile = 84% Number of Observations = 32 Water Year = 2015 First Quartile = 71% Median = 76% Third Quartile = 84% Number of Observations = 32 Water Year = 2015 First Quartile = 71% Median = 76% Third Quartile = 84% Number of Observations = 32 Water Year = 2015 First Quartile = 71% Median = 76% Third Quartile = 84% Number of Observations = 32 Water Year = 2015 First Quartile = 71% Median = 76% Third Quartile = 84% Number of Observations = 32 Water Year = 2015 First Quartile = 71% Median = 76% Third Quartile = 84% Number of Observations = 32 Water Year = 2015 First Quartile = 71% Median = 76% Third Quartile = 84% Number of Observations = 32 Y = 1
The SGPlot Procedure

Percent Recovery Statistics for Selenium, unfltd, cICP-MS, recov

Analyte Parm-meth Code Water Year # of
Samples		 25th Pctl 50th Pctl
(Median)		 75th Pctl
Selenium, unfltd, cICP-MS, recov 01147PLM77 2015 32 71.2% 75.6% 83.9%
    2016 66 71.3% 78.7% 84.9%
    2017 66 72.3% 91.1% 99.0%
    2019 55 57.4% 99.1% 102.9%
    2020 44 60.2% 93.5% 97.4%
    2021 48 90.9% 94.7% 97.3%
    2022 47 90.4% 94.6% 103.5%
    2023 48 91.9% 100.2% 105.5%
    2024 42 96.2% 100.3% 103.1%

Hover over boxplot or outliers for additional information
Chart generated 03/27/2025
Charts and data secured from this U.S. Geological Survey (USGS) web page (identified as IBSP) have not received official USGS approval and as such are provisional and subject to revision. The charts and data are released on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use.


- Silver, fltd, ICP-MS -
Lab: NWQL, PCode: 01075, MCode: PLM43
Analysis Dates: 10/09/09 through 09/28/24
Open Data Set
Boxplot Description

Water Year = 2024 plotvalue = 130% pctrecov = 327% Water Year = 2024 plotvalue = 130% pctrecov = 195% Water Year = 2024 plotvalue = 130% pctrecov = 137% Water Year = 2024 plotvalue = 130% pctrecov = 140% Water Year = 2024 plotvalue = 130% pctrecov = 174% Water Year = 2024 plotvalue = 130% pctrecov = 327% Water Year = 2022 plotvalue = 124% pctrecov = 124% Water Year = 2022 plotvalue = 130% pctrecov = 137% Water Year = 2022 plotvalue = 130% pctrecov = 137% Water Year = 2021 plotvalue = 130% pctrecov = 141% Water Year = 2019 plotvalue = 70% pctrecov = 54% Water Year = 2019 plotvalue = 70% pctrecov = 4% Water Year = 2019 plotvalue = 70% pctrecov = 60% Water Year = 2017 plotvalue = 126% pctrecov = 126% Water Year = 2017 plotvalue = 73% pctrecov = 73% Water Year = 2016 plotvalue = 83% pctrecov = 83% Water Year = 2016 plotvalue = 83% pctrecov = 83% Water Year = 2016 plotvalue = 74% pctrecov = 74% Water Year = 2016 plotvalue = 72% pctrecov = 72% Water Year = 2016 plotvalue = 70% pctrecov = 63% Water Year = 2016 plotvalue = 70% pctrecov = 0% Water Year = 2016 plotvalue = 70% pctrecov = 69% Water Year = 2016 plotvalue = 70% pctrecov = 66% Water Year = 2016 plotvalue = 70% pctrecov = 1% Water Year = 2016 plotvalue = 70% pctrecov = 67% Water Year = 2015 plotvalue = 73% pctrecov = 73% Water Year = 2015 plotvalue = 70% pctrecov = 1% Water Year = 2015 plotvalue = 70% pctrecov = 58% Water Year = 2015 plotvalue = 70% pctrecov = 53% Water Year = 2015 plotvalue = 70% pctrecov = 2% Water Year = 2015 plotvalue = 70% pctrecov = 38% Water Year = 2014 plotvalue = 113% pctrecov = 113% Water Year = 2014 plotvalue = 117% pctrecov = 117% Water Year = 2014 plotvalue = 129% pctrecov = 129% Water Year = 2014 plotvalue = 70% pctrecov = 1% Water Year = 2014 plotvalue = 70% pctrecov = 5% Water Year = 2014 plotvalue = 70% pctrecov = 2% Water Year = 2014 plotvalue = 70% pctrecov = 51% Water Year = 2013 plotvalue = 115% pctrecov = 115% Water Year = 2013 plotvalue = 70% pctrecov = 0% Water Year = 2012 plotvalue = 70% pctrecov = 0% Water Year = 2012 plotvalue = 70% pctrecov = 0% Water Year = 2012 plotvalue = 70% pctrecov = 0% Water Year = 2011 plotvalue = 106% pctrecov = 106% Water Year = 2011 plotvalue = 107% pctrecov = 107% Water Year = 2011 plotvalue = 108% pctrecov = 108% Water Year = 2011 plotvalue = 85% pctrecov = 85% Water Year = 2011 plotvalue = 70% pctrecov = 0% Water Year = 2011 plotvalue = 70% pctrecov = 0% Water Year = 2010 plotvalue = 130% pctrecov = 168% Water Year = 2024 First Quartile = 87% Median = 93% Third Quartile = 102% Number of Observations = 59 Water Year = 2024 First Quartile = 87% Median = 93% Third Quartile = 102% Number of Observations = 59 Water Year = 2024 First Quartile = 87% Median = 93% Third Quartile = 102% Number of Observations = 59 Water Year = 2024 First Quartile = 87% Median = 93% Third Quartile = 102% Number of Observations = 59 Water Year = 2024 First Quartile = 87% Median = 93% Third Quartile = 102% Number of Observations = 59 Water Year = 2024 First Quartile = 87% Median = 93% Third Quartile = 102% Number of Observations = 59 Water Year = 2024 First Quartile = 87% Median = 93% Third Quartile = 102% Number of Observations = 59 Water Year = 2024 First Quartile = 87% Median = 93% Third Quartile = 102% Number of Observations = 59 Water Year = 2023 First Quartile = 93% Median = 103% Third Quartile = 118% Number of Observations = 60 Water Year = 2023 First Quartile = 93% Median = 103% Third Quartile = 118% Number of Observations = 60 Water Year = 2023 First Quartile = 93% Median = 103% Third Quartile = 118% Number of Observations = 60 Water Year = 2023 First Quartile = 93% Median = 103% Third Quartile = 118% Number of Observations = 60 Water Year = 2023 First Quartile = 93% Median = 103% Third Quartile = 118% Number of Observations = 60 Water Year = 2023 First Quartile = 93% Median = 103% Third Quartile = 118% Number of Observations = 60 Water Year = 2023 First Quartile = 93% Median = 103% Third Quartile = 118% Number of Observations = 60 Water Year = 2023 First Quartile = 93% Median = 103% Third Quartile = 118% Number of Observations = 60 Water Year = 2022 First Quartile = 90% Median = 95% Third Quartile = 103% Number of Observations = 43 Water Year = 2022 First Quartile = 90% Median = 95% Third Quartile = 103% Number of Observations = 43 Water Year = 2022 First Quartile = 90% Median = 95% Third Quartile = 103% Number of Observations = 43 Water Year = 2022 First Quartile = 90% Median = 95% Third Quartile = 103% Number of Observations = 43 Water Year = 2022 First Quartile = 90% Median = 95% Third Quartile = 103% Number of Observations = 43 Water Year = 2022 First Quartile = 90% Median = 95% Third Quartile = 103% Number of Observations = 43 Water Year = 2022 First Quartile = 90% Median = 95% Third Quartile = 103% Number of Observations = 43 Water Year = 2022 First Quartile = 90% Median = 95% Third Quartile = 103% Number of Observations = 43 Water Year = 2021 First Quartile = 84% Median = 93% Third Quartile = 100% Number of Observations = 44 Water Year = 2021 First Quartile = 84% Median = 93% Third Quartile = 100% Number of Observations = 44 Water Year = 2021 First Quartile = 84% Median = 93% Third Quartile = 100% Number of Observations = 44 Water Year = 2021 First Quartile = 84% Median = 93% Third Quartile = 100% Number of Observations = 44 Water Year = 2021 First Quartile = 84% Median = 93% Third Quartile = 100% Number of Observations = 44 Water Year = 2021 First Quartile = 84% Median = 93% Third Quartile = 100% Number of Observations = 44 Water Year = 2021 First Quartile = 84% Median = 93% Third Quartile = 100% Number of Observations = 44 Water Year = 2021 First Quartile = 84% Median = 93% Third Quartile = 100% Number of Observations = 44 Water Year = 2020 First Quartile = 94% Median = 102% Third Quartile = 111% Number of Observations = 59 Water Year = 2020 First Quartile = 94% Median = 102% Third Quartile = 111% Number of Observations = 59 Water Year = 2020 First Quartile = 94% Median = 102% Third Quartile = 111% Number of Observations = 59 Water Year = 2020 First Quartile = 94% Median = 102% Third Quartile = 111% Number of Observations = 59 Water Year = 2020 First Quartile = 94% Median = 102% Third Quartile = 111% Number of Observations = 59 Water Year = 2020 First Quartile = 94% Median = 102% Third Quartile = 111% Number of Observations = 59 Water Year = 2020 First Quartile = 94% Median = 102% Third Quartile = 111% Number of Observations = 59 Water Year = 2020 First Quartile = 94% Median = 102% Third Quartile = 111% Number of Observations = 59 Water Year = 2019 First Quartile = 96% Median = 104% Third Quartile = 112% Number of Observations = 67 Water Year = 2019 First Quartile = 96% Median = 104% Third Quartile = 112% Number of Observations = 67 Water Year = 2019 First Quartile = 96% Median = 104% Third Quartile = 112% Number of Observations = 67 Water Year = 2019 First Quartile = 96% Median = 104% Third Quartile = 112% Number of Observations = 67 Water Year = 2019 First Quartile = 96% Median = 104% Third Quartile = 112% Number of Observations = 67 Water Year = 2019 First Quartile = 96% Median = 104% Third Quartile = 112% Number of Observations = 67 Water Year = 2019 First Quartile = 96% Median = 104% Third Quartile = 112% Number of Observations = 67 Water Year = 2019 First Quartile = 96% Median = 104% Third Quartile = 112% Number of Observations = 67 Water Year = 2017 First Quartile = 92% Median = 98% Third Quartile = 103% Number of Observations = 60 Water Year = 2017 First Quartile = 92% Median = 98% Third Quartile = 103% Number of Observations = 60 Water Year = 2017 First Quartile = 92% Median = 98% Third Quartile = 103% Number of Observations = 60 Water Year = 2017 First Quartile = 92% Median = 98% Third Quartile = 103% Number of Observations = 60 Water Year = 2017 First Quartile = 92% Median = 98% Third Quartile = 103% Number of Observations = 60 Water Year = 2017 First Quartile = 92% Median = 98% Third Quartile = 103% Number of Observations = 60 Water Year = 2017 First Quartile = 92% Median = 98% Third Quartile = 103% Number of Observations = 60 Water Year = 2017 First Quartile = 92% Median = 98% Third Quartile = 103% Number of Observations = 60 Water Year = 2016 First Quartile = 93% Median = 97% Third Quartile = 98% Number of Observations = 44 Water Year = 2016 First Quartile = 93% Median = 97% Third Quartile = 98% Number of Observations = 44 Water Year = 2016 First Quartile = 93% Median = 97% Third Quartile = 98% Number of Observations = 44 Water Year = 2016 First Quartile = 93% Median = 97% Third Quartile = 98% Number of Observations = 44 Water Year = 2016 First Quartile = 93% Median = 97% Third Quartile = 98% Number of Observations = 44 Water Year = 2016 First Quartile = 93% Median = 97% Third Quartile = 98% Number of Observations = 44 Water Year = 2016 First Quartile = 93% Median = 97% Third Quartile = 98% Number of Observations = 44 Water Year = 2016 First Quartile = 93% Median = 97% Third Quartile = 98% Number of Observations = 44 Water Year = 2015 First Quartile = 91% Median = 96% Third Quartile = 102% Number of Observations = 58 Water Year = 2015 First Quartile = 91% Median = 96% Third Quartile = 102% Number of Observations = 58 Water Year = 2015 First Quartile = 91% Median = 96% Third Quartile = 102% Number of Observations = 58 Water Year = 2015 First Quartile = 91% Median = 96% Third Quartile = 102% Number of Observations = 58 Water Year = 2015 First Quartile = 91% Median = 96% Third Quartile = 102% Number of Observations = 58 Water Year = 2015 First Quartile = 91% Median = 96% Third Quartile = 102% Number of Observations = 58 Water Year = 2015 First Quartile = 91% Median = 96% Third Quartile = 102% Number of Observations = 58 Water Year = 2015 First Quartile = 91% Median = 96% Third Quartile = 102% Number of Observations = 58 Water Year = 2014 First Quartile = 95% Median = 98% Third Quartile = 102% Number of Observations = 83 Water Year = 2014 First Quartile = 95% Median = 98% Third Quartile = 102% Number of Observations = 83 Water Year = 2014 First Quartile = 95% Median = 98% Third Quartile = 102% Number of Observations = 83 Water Year = 2014 First Quartile = 95% Median = 98% Third Quartile = 102% Number of Observations = 83 Water Year = 2014 First Quartile = 95% Median = 98% Third Quartile = 102% Number of Observations = 83 Water Year = 2014 First Quartile = 95% Median = 98% Third Quartile = 102% Number of Observations = 83 Water Year = 2014 First Quartile = 95% Median = 98% Third Quartile = 102% Number of Observations = 83 Water Year = 2014 First Quartile = 95% Median = 98% Third Quartile = 102% Number of Observations = 83 Water Year = 2013 First Quartile = 101% Median = 104% Third Quartile = 106% Number of Observations = 108 Water Year = 2013 First Quartile = 101% Median = 104% Third Quartile = 106% Number of Observations = 108 Water Year = 2013 First Quartile = 101% Median = 104% Third Quartile = 106% Number of Observations = 108 Water Year = 2013 First Quartile = 101% Median = 104% Third Quartile = 106% Number of Observations = 108 Water Year = 2013 First Quartile = 101% Median = 104% Third Quartile = 106% Number of Observations = 108 Water Year = 2013 First Quartile = 101% Median = 104% Third Quartile = 106% Number of Observations = 108 Water Year = 2013 First Quartile = 101% Median = 104% Third Quartile = 106% Number of Observations = 108 Water Year = 2013 First Quartile = 101% Median = 104% Third Quartile = 106% Number of Observations = 108 Water Year = 2012 First Quartile = 99% Median = 104% Third Quartile = 110% Number of Observations = 132 Water Year = 2012 First Quartile = 99% Median = 104% Third Quartile = 110% Number of Observations = 132 Water Year = 2012 First Quartile = 99% Median = 104% Third Quartile = 110% Number of Observations = 132 Water Year = 2012 First Quartile = 99% Median = 104% Third Quartile = 110% Number of Observations = 132 Water Year = 2012 First Quartile = 99% Median = 104% Third Quartile = 110% Number of Observations = 132 Water Year = 2012 First Quartile = 99% Median = 104% Third Quartile = 110% Number of Observations = 132 Water Year = 2012 First Quartile = 99% Median = 104% Third Quartile = 110% Number of Observations = 132 Water Year = 2012 First Quartile = 99% Median = 104% Third Quartile = 110% Number of Observations = 132 Water Year = 2011 First Quartile = 94% Median = 97% Third Quartile = 99% Number of Observations = 131 Water Year = 2011 First Quartile = 94% Median = 97% Third Quartile = 99% Number of Observations = 131 Water Year = 2011 First Quartile = 94% Median = 97% Third Quartile = 99% Number of Observations = 131 Water Year = 2011 First Quartile = 94% Median = 97% Third Quartile = 99% Number of Observations = 131 Water Year = 2011 First Quartile = 94% Median = 97% Third Quartile = 99% Number of Observations = 131 Water Year = 2011 First Quartile = 94% Median = 97% Third Quartile = 99% Number of Observations = 131 Water Year = 2011 First Quartile = 94% Median = 97% Third Quartile = 99% Number of Observations = 131 Water Year = 2011 First Quartile = 94% Median = 97% Third Quartile = 99% Number of Observations = 131 Water Year = 2010 First Quartile = 86% Median = 93% Third Quartile = 100% Number of Observations = 132 Water Year = 2010 First Quartile = 86% Median = 93% Third Quartile = 100% Number of Observations = 132 Water Year = 2010 First Quartile = 86% Median = 93% Third Quartile = 100% Number of Observations = 132 Water Year = 2010 First Quartile = 86% Median = 93% Third Quartile = 100% Number of Observations = 132 Water Year = 2010 First Quartile = 86% Median = 93% Third Quartile = 100% Number of Observations = 132 Water Year = 2010 First Quartile = 86% Median = 93% Third Quartile = 100% Number of Observations = 132 Water Year = 2010 First Quartile = 86% Median = 93% Third Quartile = 100% Number of Observations = 132 Water Year = 2010 First Quartile = 86% Median = 93% Third Quartile = 100% Number of Observations = 132 Y = 1
The SGPlot Procedure

Percent Recovery Statistics for Silver, fltd, ICP-MS

Analyte Parm-meth Code Water Year # of
Samples		 25th Pctl 50th Pctl
(Median)		 75th Pctl
Silver, fltd, ICP-MS 01075PLM43 2010 132 86.1% 93.4% 99.9%
    2011 131 94.3% 96.5% 98.8%
    2012 132 99.2% 104.4% 109.7%
    2013 108 101.0% 103.8% 106.2%
    2014 83 94.9% 97.8% 101.8%
    2015 58 90.5% 96.1% 101.6%
    2016 44 93.0% 96.7% 98.4%
    2017 60 92.1% 97.6% 103.0%
    2019 67 96.2% 103.7% 111.6%
    2020 59 93.6% 102.2% 111.4%
    2021 44 84.5% 93.4% 100.0%
    2022 43 89.9% 94.7% 103.2%
    2023 60 93.0% 102.6% 117.9%
    2024 59 86.5% 93.0% 101.8%

Hover over boxplot or outliers for additional information
Chart generated 03/27/2025
Charts and data secured from this U.S. Geological Survey (USGS) web page (identified as IBSP) have not received official USGS approval and as such are provisional and subject to revision. The charts and data are released on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use.


- Silver, unfltd, ICP-MS, recov -
Lab: NWQL, PCode: 01077, MCode: PLM48
Analysis Dates: 10/05/09 through 04/30/15
Open Data Set
Boxplot Description

Water Year = 2014 plotvalue = 130% pctrecov = 145% Water Year = 2014 plotvalue = 70% pctrecov = 52% Water Year = 2013 plotvalue = 107% pctrecov = 107% Water Year = 2013 plotvalue = 108% pctrecov = 108% Water Year = 2010 plotvalue = 75% pctrecov = 75% Water Year = 2010 plotvalue = 75% pctrecov = 75% Water Year = 2010 plotvalue = 75% pctrecov = 75% Water Year = 2010 plotvalue = 75% pctrecov = 75% Water Year = 2010 plotvalue = 72% pctrecov = 72% Water Year = 2009 plotvalue = 84% pctrecov = 84% Water Year = 2015 First Quartile = 95% Median = 99% Third Quartile = 101% Number of Observations = 27 Water Year = 2015 First Quartile = 95% Median = 99% Third Quartile = 101% Number of Observations = 27 Water Year = 2015 First Quartile = 95% Median = 99% Third Quartile = 101% Number of Observations = 27 Water Year = 2015 First Quartile = 95% Median = 99% Third Quartile = 101% Number of Observations = 27 Water Year = 2015 First Quartile = 95% Median = 99% Third Quartile = 101% Number of Observations = 27 Water Year = 2015 First Quartile = 95% Median = 99% Third Quartile = 101% Number of Observations = 27 Water Year = 2015 First Quartile = 95% Median = 99% Third Quartile = 101% Number of Observations = 27 Water Year = 2015 First Quartile = 95% Median = 99% Third Quartile = 101% Number of Observations = 27 Water Year = 2014 First Quartile = 90% Median = 95% Third Quartile = 98% Number of Observations = 45 Water Year = 2014 First Quartile = 90% Median = 95% Third Quartile = 98% Number of Observations = 45 Water Year = 2014 First Quartile = 90% Median = 95% Third Quartile = 98% Number of Observations = 45 Water Year = 2014 First Quartile = 90% Median = 95% Third Quartile = 98% Number of Observations = 45 Water Year = 2014 First Quartile = 90% Median = 95% Third Quartile = 98% Number of Observations = 45 Water Year = 2014 First Quartile = 90% Median = 95% Third Quartile = 98% Number of Observations = 45 Water Year = 2014 First Quartile = 90% Median = 95% Third Quartile = 98% Number of Observations = 45 Water Year = 2014 First Quartile = 90% Median = 95% Third Quartile = 98% Number of Observations = 45 Water Year = 2013 First Quartile = 95% Median = 97% Third Quartile = 99% Number of Observations = 48 Water Year = 2013 First Quartile = 95% Median = 97% Third Quartile = 99% Number of Observations = 48 Water Year = 2013 First Quartile = 95% Median = 97% Third Quartile = 99% Number of Observations = 48 Water Year = 2013 First Quartile = 95% Median = 97% Third Quartile = 99% Number of Observations = 48 Water Year = 2013 First Quartile = 95% Median = 97% Third Quartile = 99% Number of Observations = 48 Water Year = 2013 First Quartile = 95% Median = 97% Third Quartile = 99% Number of Observations = 48 Water Year = 2013 First Quartile = 95% Median = 97% Third Quartile = 99% Number of Observations = 48 Water Year = 2013 First Quartile = 95% Median = 97% Third Quartile = 99% Number of Observations = 48 Water Year = 2012 First Quartile = 100% Median = 104% Third Quartile = 115% Number of Observations = 48 Water Year = 2012 First Quartile = 100% Median = 104% Third Quartile = 115% Number of Observations = 48 Water Year = 2012 First Quartile = 100% Median = 104% Third Quartile = 115% Number of Observations = 48 Water Year = 2012 First Quartile = 100% Median = 104% Third Quartile = 115% Number of Observations = 48 Water Year = 2012 First Quartile = 100% Median = 104% Third Quartile = 115% Number of Observations = 48 Water Year = 2012 First Quartile = 100% Median = 104% Third Quartile = 115% Number of Observations = 48 Water Year = 2012 First Quartile = 100% Median = 104% Third Quartile = 115% Number of Observations = 48 Water Year = 2012 First Quartile = 100% Median = 104% Third Quartile = 115% Number of Observations = 48 Water Year = 2011 First Quartile = 96% Median = 97% Third Quartile = 101% Number of Observations = 48 Water Year = 2011 First Quartile = 96% Median = 97% Third Quartile = 101% Number of Observations = 48 Water Year = 2011 First Quartile = 96% Median = 97% Third Quartile = 101% Number of Observations = 48 Water Year = 2011 First Quartile = 96% Median = 97% Third Quartile = 101% Number of Observations = 48 Water Year = 2011 First Quartile = 96% Median = 97% Third Quartile = 101% Number of Observations = 48 Water Year = 2011 First Quartile = 96% Median = 97% Third Quartile = 101% Number of Observations = 48 Water Year = 2011 First Quartile = 96% Median = 97% Third Quartile = 101% Number of Observations = 48 Water Year = 2011 First Quartile = 96% Median = 97% Third Quartile = 101% Number of Observations = 48 Water Year = 2010 First Quartile = 88% Median = 91% Third Quartile = 96% Number of Observations = 48 Water Year = 2010 First Quartile = 88% Median = 91% Third Quartile = 96% Number of Observations = 48 Water Year = 2010 First Quartile = 88% Median = 91% Third Quartile = 96% Number of Observations = 48 Water Year = 2010 First Quartile = 88% Median = 91% Third Quartile = 96% Number of Observations = 48 Water Year = 2010 First Quartile = 88% Median = 91% Third Quartile = 96% Number of Observations = 48 Water Year = 2010 First Quartile = 88% Median = 91% Third Quartile = 96% Number of Observations = 48 Water Year = 2010 First Quartile = 88% Median = 91% Third Quartile = 96% Number of Observations = 48 Water Year = 2010 First Quartile = 88% Median = 91% Third Quartile = 96% Number of Observations = 48 Water Year = 2009 First Quartile = 91% Median = 91% Third Quartile = 93% Number of Observations = 9 Water Year = 2009 First Quartile = 91% Median = 91% Third Quartile = 93% Number of Observations = 9 Water Year = 2009 First Quartile = 91% Median = 91% Third Quartile = 93% Number of Observations = 9 Water Year = 2009 First Quartile = 91% Median = 91% Third Quartile = 93% Number of Observations = 9 Water Year = 2009 First Quartile = 91% Median = 91% Third Quartile = 93% Number of Observations = 9 Water Year = 2009 First Quartile = 91% Median = 91% Third Quartile = 93% Number of Observations = 9 Water Year = 2009 First Quartile = 91% Median = 91% Third Quartile = 93% Number of Observations = 9 Water Year = 2009 First Quartile = 91% Median = 91% Third Quartile = 93% Number of Observations = 9 Y = 1
The SGPlot Procedure

Percent Recovery Statistics for Silver, unfltd, ICP-MS, recov

Analyte Parm-meth Code Water Year # of
Samples		 25th Pctl 50th Pctl
(Median)		 75th Pctl
Silver, unfltd, ICP-MS, recov 01077PLM48 2009 9 90.6% 91.4% 93.2%
    2010 48 88.2% 91.0% 95.9%
    2011 48 95.8% 97.5% 101.1%
    2012 48 99.6% 103.5% 114.7%
    2013 48 95.3% 97.0% 99.3%
    2014 45 89.8% 94.6% 98.5%
    2015 27 94.8% 98.8% 100.9%

Hover over boxplot or outliers for additional information
Chart generated 03/27/2025
Charts and data secured from this U.S. Geological Survey (USGS) web page (identified as IBSP) have not received official USGS approval and as such are provisional and subject to revision. The charts and data are released on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use.


- Silver, unfltd, ICP-MS, recov -
Lab: NWQL, PCode: 01077, MCode: PLM78
Analysis Dates: 05/12/15 through 09/25/24
Open Data Set
Boxplot Description

Water Year = 2024 plotvalue = 130% pctrecov = 198% Water Year = 2024 plotvalue = 90% pctrecov = 90% Water Year = 2023 plotvalue = 113% pctrecov = 113% Water Year = 2023 plotvalue = 118% pctrecov = 118% Water Year = 2023 plotvalue = 119% pctrecov = 119% Water Year = 2023 plotvalue = 130% pctrecov = 143% Water Year = 2022 plotvalue = 122% pctrecov = 122% Water Year = 2022 plotvalue = 125% pctrecov = 125% Water Year = 2022 plotvalue = 130% pctrecov = 266% Water Year = 2022 plotvalue = 130% pctrecov = 149% Water Year = 2022 plotvalue = 75% pctrecov = 75% Water Year = 2022 plotvalue = 75% pctrecov = 75% Water Year = 2022 plotvalue = 70% pctrecov = 68% Water Year = 2021 plotvalue = 126% pctrecov = 126% Water Year = 2021 plotvalue = 128% pctrecov = 128% Water Year = 2020 plotvalue = 79% pctrecov = 79% Water Year = 2020 plotvalue = 71% pctrecov = 71% Water Year = 2020 plotvalue = 70% pctrecov = 65% Water Year = 2020 plotvalue = 70% pctrecov = 59% Water Year = 2019 plotvalue = 76% pctrecov = 76% Water Year = 2019 plotvalue = 73% pctrecov = 73% Water Year = 2019 plotvalue = 71% pctrecov = 71% Water Year = 2019 plotvalue = 70% pctrecov = 66% Water Year = 2017 plotvalue = 118% pctrecov = 118% Water Year = 2017 plotvalue = 93% pctrecov = 93% Water Year = 2016 plotvalue = 108% pctrecov = 108% Water Year = 2016 plotvalue = 108% pctrecov = 108% Water Year = 2016 plotvalue = 109% pctrecov = 109% Water Year = 2024 First Quartile = 97% Median = 100% Third Quartile = 101% Number of Observations = 35 Water Year = 2024 First Quartile = 97% Median = 100% Third Quartile = 101% Number of Observations = 35 Water Year = 2024 First Quartile = 97% Median = 100% Third Quartile = 101% Number of Observations = 35 Water Year = 2024 First Quartile = 97% Median = 100% Third Quartile = 101% Number of Observations = 35 Water Year = 2024 First Quartile = 97% Median = 100% Third Quartile = 101% Number of Observations = 35 Water Year = 2024 First Quartile = 97% Median = 100% Third Quartile = 101% Number of Observations = 35 Water Year = 2024 First Quartile = 97% Median = 100% Third Quartile = 101% Number of Observations = 35 Water Year = 2024 First Quartile = 97% Median = 100% Third Quartile = 101% Number of Observations = 35 Water Year = 2023 First Quartile = 94% Median = 96% Third Quartile = 100% Number of Observations = 40 Water Year = 2023 First Quartile = 94% Median = 96% Third Quartile = 100% Number of Observations = 40 Water Year = 2023 First Quartile = 94% Median = 96% Third Quartile = 100% Number of Observations = 40 Water Year = 2023 First Quartile = 94% Median = 96% Third Quartile = 100% Number of Observations = 40 Water Year = 2023 First Quartile = 94% Median = 96% Third Quartile = 100% Number of Observations = 40 Water Year = 2023 First Quartile = 94% Median = 96% Third Quartile = 100% Number of Observations = 40 Water Year = 2023 First Quartile = 94% Median = 96% Third Quartile = 100% Number of Observations = 40 Water Year = 2023 First Quartile = 94% Median = 96% Third Quartile = 100% Number of Observations = 40 Water Year = 2022 First Quartile = 89% Median = 93% Third Quartile = 99% Number of Observations = 33 Water Year = 2022 First Quartile = 89% Median = 93% Third Quartile = 99% Number of Observations = 33 Water Year = 2022 First Quartile = 89% Median = 93% Third Quartile = 99% Number of Observations = 33 Water Year = 2022 First Quartile = 89% Median = 93% Third Quartile = 99% Number of Observations = 33 Water Year = 2022 First Quartile = 89% Median = 93% Third Quartile = 99% Number of Observations = 33 Water Year = 2022 First Quartile = 89% Median = 93% Third Quartile = 99% Number of Observations = 33 Water Year = 2022 First Quartile = 89% Median = 93% Third Quartile = 99% Number of Observations = 33 Water Year = 2022 First Quartile = 89% Median = 93% Third Quartile = 99% Number of Observations = 33 Water Year = 2021 First Quartile = 87% Median = 98% Third Quartile = 101% Number of Observations = 41 Water Year = 2021 First Quartile = 87% Median = 98% Third Quartile = 101% Number of Observations = 41 Water Year = 2021 First Quartile = 87% Median = 98% Third Quartile = 101% Number of Observations = 41 Water Year = 2021 First Quartile = 87% Median = 98% Third Quartile = 101% Number of Observations = 41 Water Year = 2021 First Quartile = 87% Median = 98% Third Quartile = 101% Number of Observations = 41 Water Year = 2021 First Quartile = 87% Median = 98% Third Quartile = 101% Number of Observations = 41 Water Year = 2021 First Quartile = 87% Median = 98% Third Quartile = 101% Number of Observations = 41 Water Year = 2021 First Quartile = 87% Median = 98% Third Quartile = 101% Number of Observations = 41 Water Year = 2020 First Quartile = 95% Median = 98% Third Quartile = 101% Number of Observations = 37 Water Year = 2020 First Quartile = 95% Median = 98% Third Quartile = 101% Number of Observations = 37 Water Year = 2020 First Quartile = 95% Median = 98% Third Quartile = 101% Number of Observations = 37 Water Year = 2020 First Quartile = 95% Median = 98% Third Quartile = 101% Number of Observations = 37 Water Year = 2020 First Quartile = 95% Median = 98% Third Quartile = 101% Number of Observations = 37 Water Year = 2020 First Quartile = 95% Median = 98% Third Quartile = 101% Number of Observations = 37 Water Year = 2020 First Quartile = 95% Median = 98% Third Quartile = 101% Number of Observations = 37 Water Year = 2020 First Quartile = 95% Median = 98% Third Quartile = 101% Number of Observations = 37 Water Year = 2019 First Quartile = 92% Median = 98% Third Quartile = 101% Number of Observations = 40 Water Year = 2019 First Quartile = 92% Median = 98% Third Quartile = 101% Number of Observations = 40 Water Year = 2019 First Quartile = 92% Median = 98% Third Quartile = 101% Number of Observations = 40 Water Year = 2019 First Quartile = 92% Median = 98% Third Quartile = 101% Number of Observations = 40 Water Year = 2019 First Quartile = 92% Median = 98% Third Quartile = 101% Number of Observations = 40 Water Year = 2019 First Quartile = 92% Median = 98% Third Quartile = 101% Number of Observations = 40 Water Year = 2019 First Quartile = 92% Median = 98% Third Quartile = 101% Number of Observations = 40 Water Year = 2019 First Quartile = 92% Median = 98% Third Quartile = 101% Number of Observations = 40 Water Year = 2017 First Quartile = 102% Median = 103% Third Quartile = 107% Number of Observations = 48 Water Year = 2017 First Quartile = 102% Median = 103% Third Quartile = 107% Number of Observations = 48 Water Year = 2017 First Quartile = 102% Median = 103% Third Quartile = 107% Number of Observations = 48 Water Year = 2017 First Quartile = 102% Median = 103% Third Quartile = 107% Number of Observations = 48 Water Year = 2017 First Quartile = 102% Median = 103% Third Quartile = 107% Number of Observations = 48 Water Year = 2017 First Quartile = 102% Median = 103% Third Quartile = 107% Number of Observations = 48 Water Year = 2017 First Quartile = 102% Median = 103% Third Quartile = 107% Number of Observations = 48 Water Year = 2017 First Quartile = 102% Median = 103% Third Quartile = 107% Number of Observations = 48 Water Year = 2016 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 48 Water Year = 2016 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 48 Water Year = 2016 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 48 Water Year = 2016 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 48 Water Year = 2016 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 48 Water Year = 2016 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 48 Water Year = 2016 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 48 Water Year = 2016 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 48 Water Year = 2015 First Quartile = 95% Median = 99% Third Quartile = 100% Number of Observations = 21 Water Year = 2015 First Quartile = 95% Median = 99% Third Quartile = 100% Number of Observations = 21 Water Year = 2015 First Quartile = 95% Median = 99% Third Quartile = 100% Number of Observations = 21 Water Year = 2015 First Quartile = 95% Median = 99% Third Quartile = 100% Number of Observations = 21 Water Year = 2015 First Quartile = 95% Median = 99% Third Quartile = 100% Number of Observations = 21 Water Year = 2015 First Quartile = 95% Median = 99% Third Quartile = 100% Number of Observations = 21 Water Year = 2015 First Quartile = 95% Median = 99% Third Quartile = 100% Number of Observations = 21 Water Year = 2015 First Quartile = 95% Median = 99% Third Quartile = 100% Number of Observations = 21 Y = 1
The SGPlot Procedure

Percent Recovery Statistics for Silver, unfltd, ICP-MS, recov

Analyte Parm-meth Code Water Year # of
Samples		 25th Pctl 50th Pctl
(Median)		 75th Pctl
Silver, unfltd, ICP-MS, recov 01077PLM78 2015 21 95.2% 98.7% 100.5%
    2016 48 99.4% 101.3% 102.7%
    2017 48 101.8% 103.3% 107.1%
    2019 40 92.2% 97.6% 101.5%
    2020 37 94.7% 98.4% 100.8%
    2021 41 86.5% 97.8% 100.7%
    2022 33 89.2% 93.4% 98.6%
    2023 40 93.6% 95.8% 100.5%
    2024 35 96.8% 100.0% 101.5%

Hover over boxplot or outliers for additional information
Chart generated 03/27/2025
Charts and data secured from this U.S. Geological Survey (USGS) web page (identified as IBSP) have not received official USGS approval and as such are provisional and subject to revision. The charts and data are released on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use.


- Strontium, fltd, ICP-MS -
Lab: NWQL, PCode: 01080, MCode: PLM40
Analysis Dates: 10/09/09 through 09/28/24
Open Data Set
Boxplot Description

Water Year = 2024 plotvalue = 93% pctrecov = 93% Water Year = 2024 plotvalue = 92% pctrecov = 92% Water Year = 2024 plotvalue = 91% pctrecov = 91% Water Year = 2024 plotvalue = 91% pctrecov = 91% Water Year = 2024 plotvalue = 90% pctrecov = 90% Water Year = 2024 plotvalue = 89% pctrecov = 89% Water Year = 2024 plotvalue = 88% pctrecov = 88% Water Year = 2024 plotvalue = 87% pctrecov = 87% Water Year = 2023 plotvalue = 92% pctrecov = 92% Water Year = 2022 plotvalue = 117% pctrecov = 117% Water Year = 2022 plotvalue = 90% pctrecov = 90% Water Year = 2021 plotvalue = 119% pctrecov = 119% Water Year = 2021 plotvalue = 91% pctrecov = 91% Water Year = 2021 plotvalue = 90% pctrecov = 90% Water Year = 2021 plotvalue = 90% pctrecov = 90% Water Year = 2019 plotvalue = 114% pctrecov = 114% Water Year = 2019 plotvalue = 114% pctrecov = 114% Water Year = 2019 plotvalue = 117% pctrecov = 117% Water Year = 2019 plotvalue = 92% pctrecov = 92% Water Year = 2017 plotvalue = 122% pctrecov = 122% Water Year = 2016 plotvalue = 116% pctrecov = 116% Water Year = 2016 plotvalue = 116% pctrecov = 116% Water Year = 2016 plotvalue = 70% pctrecov = 29% Water Year = 2016 plotvalue = 70% pctrecov = 0% Water Year = 2015 plotvalue = 70% pctrecov = 29% Water Year = 2014 plotvalue = 130% pctrecov = 425% Water Year = 2014 plotvalue = 93% pctrecov = 93% Water Year = 2014 plotvalue = 75% pctrecov = 75% Water Year = 2014 plotvalue = 70% pctrecov = 1% Water Year = 2012 plotvalue = 114% pctrecov = 114% Water Year = 2012 plotvalue = 126% pctrecov = 126% Water Year = 2012 plotvalue = 130% pctrecov = 512% Water Year = 2012 plotvalue = 96% pctrecov = 96% Water Year = 2012 plotvalue = 70% pctrecov = 23% Water Year = 2011 plotvalue = 130% pctrecov = 654% Water Year = 2011 plotvalue = 130% pctrecov = 167% Water Year = 2010 plotvalue = 107% pctrecov = 107% Water Year = 2010 plotvalue = 109% pctrecov = 109% Water Year = 2010 plotvalue = 112% pctrecov = 112% Water Year = 2010 plotvalue = 90% pctrecov = 90% Water Year = 2010 plotvalue = 90% pctrecov = 90% Water Year = 2024 First Quartile = 104% Median = 107% Third Quartile = 109% Number of Observations = 73 Water Year = 2024 First Quartile = 104% Median = 107% Third Quartile = 109% Number of Observations = 73 Water Year = 2024 First Quartile = 104% Median = 107% Third Quartile = 109% Number of Observations = 73 Water Year = 2024 First Quartile = 104% Median = 107% Third Quartile = 109% Number of Observations = 73 Water Year = 2024 First Quartile = 104% Median = 107% Third Quartile = 109% Number of Observations = 73 Water Year = 2024 First Quartile = 104% Median = 107% Third Quartile = 109% Number of Observations = 73 Water Year = 2024 First Quartile = 104% Median = 107% Third Quartile = 109% Number of Observations = 73 Water Year = 2024 First Quartile = 104% Median = 107% Third Quartile = 109% Number of Observations = 73 Water Year = 2023 First Quartile = 100% Median = 103% Third Quartile = 105% Number of Observations = 89 Water Year = 2023 First Quartile = 100% Median = 103% Third Quartile = 105% Number of Observations = 89 Water Year = 2023 First Quartile = 100% Median = 103% Third Quartile = 105% Number of Observations = 89 Water Year = 2023 First Quartile = 100% Median = 103% Third Quartile = 105% Number of Observations = 89 Water Year = 2023 First Quartile = 100% Median = 103% Third Quartile = 105% Number of Observations = 89 Water Year = 2023 First Quartile = 100% Median = 103% Third Quartile = 105% Number of Observations = 89 Water Year = 2023 First Quartile = 100% Median = 103% Third Quartile = 105% Number of Observations = 89 Water Year = 2023 First Quartile = 100% Median = 103% Third Quartile = 105% Number of Observations = 89 Water Year = 2022 First Quartile = 101% Median = 104% Third Quartile = 107% Number of Observations = 89 Water Year = 2022 First Quartile = 101% Median = 104% Third Quartile = 107% Number of Observations = 89 Water Year = 2022 First Quartile = 101% Median = 104% Third Quartile = 107% Number of Observations = 89 Water Year = 2022 First Quartile = 101% Median = 104% Third Quartile = 107% Number of Observations = 89 Water Year = 2022 First Quartile = 101% Median = 104% Third Quartile = 107% Number of Observations = 89 Water Year = 2022 First Quartile = 101% Median = 104% Third Quartile = 107% Number of Observations = 89 Water Year = 2022 First Quartile = 101% Median = 104% Third Quartile = 107% Number of Observations = 89 Water Year = 2022 First Quartile = 101% Median = 104% Third Quartile = 107% Number of Observations = 89 Water Year = 2021 First Quartile = 101% Median = 104% Third Quartile = 107% Number of Observations = 90 Water Year = 2021 First Quartile = 101% Median = 104% Third Quartile = 107% Number of Observations = 90 Water Year = 2021 First Quartile = 101% Median = 104% Third Quartile = 107% Number of Observations = 90 Water Year = 2021 First Quartile = 101% Median = 104% Third Quartile = 107% Number of Observations = 90 Water Year = 2021 First Quartile = 101% Median = 104% Third Quartile = 107% Number of Observations = 90 Water Year = 2021 First Quartile = 101% Median = 104% Third Quartile = 107% Number of Observations = 90 Water Year = 2021 First Quartile = 101% Median = 104% Third Quartile = 107% Number of Observations = 90 Water Year = 2021 First Quartile = 101% Median = 104% Third Quartile = 107% Number of Observations = 90 Water Year = 2020 First Quartile = 99% Median = 104% Third Quartile = 106% Number of Observations = 86 Water Year = 2020 First Quartile = 99% Median = 104% Third Quartile = 106% Number of Observations = 86 Water Year = 2020 First Quartile = 99% Median = 104% Third Quartile = 106% Number of Observations = 86 Water Year = 2020 First Quartile = 99% Median = 104% Third Quartile = 106% Number of Observations = 86 Water Year = 2020 First Quartile = 99% Median = 104% Third Quartile = 106% Number of Observations = 86 Water Year = 2020 First Quartile = 99% Median = 104% Third Quartile = 106% Number of Observations = 86 Water Year = 2020 First Quartile = 99% Median = 104% Third Quartile = 106% Number of Observations = 86 Water Year = 2020 First Quartile = 99% Median = 104% Third Quartile = 106% Number of Observations = 86 Water Year = 2019 First Quartile = 100% Median = 102% Third Quartile = 106% Number of Observations = 78 Water Year = 2019 First Quartile = 100% Median = 102% Third Quartile = 106% Number of Observations = 78 Water Year = 2019 First Quartile = 100% Median = 102% Third Quartile = 106% Number of Observations = 78 Water Year = 2019 First Quartile = 100% Median = 102% Third Quartile = 106% Number of Observations = 78 Water Year = 2019 First Quartile = 100% Median = 102% Third Quartile = 106% Number of Observations = 78 Water Year = 2019 First Quartile = 100% Median = 102% Third Quartile = 106% Number of Observations = 78 Water Year = 2019 First Quartile = 100% Median = 102% Third Quartile = 106% Number of Observations = 78 Water Year = 2019 First Quartile = 100% Median = 102% Third Quartile = 106% Number of Observations = 78 Water Year = 2017 First Quartile = 103% Median = 106% Third Quartile = 110% Number of Observations = 90 Water Year = 2017 First Quartile = 103% Median = 106% Third Quartile = 110% Number of Observations = 90 Water Year = 2017 First Quartile = 103% Median = 106% Third Quartile = 110% Number of Observations = 90 Water Year = 2017 First Quartile = 103% Median = 106% Third Quartile = 110% Number of Observations = 90 Water Year = 2017 First Quartile = 103% Median = 106% Third Quartile = 110% Number of Observations = 90 Water Year = 2017 First Quartile = 103% Median = 106% Third Quartile = 110% Number of Observations = 90 Water Year = 2017 First Quartile = 103% Median = 106% Third Quartile = 110% Number of Observations = 90 Water Year = 2017 First Quartile = 103% Median = 106% Third Quartile = 110% Number of Observations = 90 Water Year = 2016 First Quartile = 102% Median = 103% Third Quartile = 106% Number of Observations = 90 Water Year = 2016 First Quartile = 102% Median = 103% Third Quartile = 106% Number of Observations = 90 Water Year = 2016 First Quartile = 102% Median = 103% Third Quartile = 106% Number of Observations = 90 Water Year = 2016 First Quartile = 102% Median = 103% Third Quartile = 106% Number of Observations = 90 Water Year = 2016 First Quartile = 102% Median = 103% Third Quartile = 106% Number of Observations = 90 Water Year = 2016 First Quartile = 102% Median = 103% Third Quartile = 106% Number of Observations = 90 Water Year = 2016 First Quartile = 102% Median = 103% Third Quartile = 106% Number of Observations = 90 Water Year = 2016 First Quartile = 102% Median = 103% Third Quartile = 106% Number of Observations = 90 Water Year = 2015 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 90 Water Year = 2015 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 90 Water Year = 2015 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 90 Water Year = 2015 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 90 Water Year = 2015 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 90 Water Year = 2015 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 90 Water Year = 2015 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 90 Water Year = 2015 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 90 Water Year = 2014 First Quartile = 97% Median = 99% Third Quartile = 100% Number of Observations = 83 Water Year = 2014 First Quartile = 97% Median = 99% Third Quartile = 100% Number of Observations = 83 Water Year = 2014 First Quartile = 97% Median = 99% Third Quartile = 100% Number of Observations = 83 Water Year = 2014 First Quartile = 97% Median = 99% Third Quartile = 100% Number of Observations = 83 Water Year = 2014 First Quartile = 97% Median = 99% Third Quartile = 100% Number of Observations = 83 Water Year = 2014 First Quartile = 97% Median = 99% Third Quartile = 100% Number of Observations = 83 Water Year = 2014 First Quartile = 97% Median = 99% Third Quartile = 100% Number of Observations = 83 Water Year = 2014 First Quartile = 97% Median = 99% Third Quartile = 100% Number of Observations = 83 Water Year = 2013 First Quartile = 101% Median = 103% Third Quartile = 105% Number of Observations = 108 Water Year = 2013 First Quartile = 101% Median = 103% Third Quartile = 105% Number of Observations = 108 Water Year = 2013 First Quartile = 101% Median = 103% Third Quartile = 105% Number of Observations = 108 Water Year = 2013 First Quartile = 101% Median = 103% Third Quartile = 105% Number of Observations = 108 Water Year = 2013 First Quartile = 101% Median = 103% Third Quartile = 105% Number of Observations = 108 Water Year = 2013 First Quartile = 101% Median = 103% Third Quartile = 105% Number of Observations = 108 Water Year = 2013 First Quartile = 101% Median = 103% Third Quartile = 105% Number of Observations = 108 Water Year = 2013 First Quartile = 101% Median = 103% Third Quartile = 105% Number of Observations = 108 Water Year = 2012 First Quartile = 102% Median = 104% Third Quartile = 107% Number of Observations = 132 Water Year = 2012 First Quartile = 102% Median = 104% Third Quartile = 107% Number of Observations = 132 Water Year = 2012 First Quartile = 102% Median = 104% Third Quartile = 107% Number of Observations = 132 Water Year = 2012 First Quartile = 102% Median = 104% Third Quartile = 107% Number of Observations = 132 Water Year = 2012 First Quartile = 102% Median = 104% Third Quartile = 107% Number of Observations = 132 Water Year = 2012 First Quartile = 102% Median = 104% Third Quartile = 107% Number of Observations = 132 Water Year = 2012 First Quartile = 102% Median = 104% Third Quartile = 107% Number of Observations = 132 Water Year = 2012 First Quartile = 102% Median = 104% Third Quartile = 107% Number of Observations = 132 Water Year = 2011 First Quartile = 98% Median = 99% Third Quartile = 102% Number of Observations = 131 Water Year = 2011 First Quartile = 98% Median = 99% Third Quartile = 102% Number of Observations = 131 Water Year = 2011 First Quartile = 98% Median = 99% Third Quartile = 102% Number of Observations = 131 Water Year = 2011 First Quartile = 98% Median = 99% Third Quartile = 102% Number of Observations = 131 Water Year = 2011 First Quartile = 98% Median = 99% Third Quartile = 102% Number of Observations = 131 Water Year = 2011 First Quartile = 98% Median = 99% Third Quartile = 102% Number of Observations = 131 Water Year = 2011 First Quartile = 98% Median = 99% Third Quartile = 102% Number of Observations = 131 Water Year = 2011 First Quartile = 98% Median = 99% Third Quartile = 102% Number of Observations = 131 Water Year = 2010 First Quartile = 97% Median = 99% Third Quartile = 101% Number of Observations = 132 Water Year = 2010 First Quartile = 97% Median = 99% Third Quartile = 101% Number of Observations = 132 Water Year = 2010 First Quartile = 97% Median = 99% Third Quartile = 101% Number of Observations = 132 Water Year = 2010 First Quartile = 97% Median = 99% Third Quartile = 101% Number of Observations = 132 Water Year = 2010 First Quartile = 97% Median = 99% Third Quartile = 101% Number of Observations = 132 Water Year = 2010 First Quartile = 97% Median = 99% Third Quartile = 101% Number of Observations = 132 Water Year = 2010 First Quartile = 97% Median = 99% Third Quartile = 101% Number of Observations = 132 Water Year = 2010 First Quartile = 97% Median = 99% Third Quartile = 101% Number of Observations = 132 Y = 1
The SGPlot Procedure

Percent Recovery Statistics for Strontium, fltd, ICP-MS

Analyte Parm-meth Code Water Year # of
Samples		 25th Pctl 50th Pctl
(Median)		 75th Pctl
Strontium, fltd, ICP-MS 01080PLM40 2010 132 96.8% 98.6% 100.8%
    2011 131 97.6% 99.2% 102.1%
    2012 132 102.3% 104.2% 106.6%
    2013 108 100.7% 102.7% 105.4%
    2014 83 97.5% 99.4% 100.4%
    2015 90 98.6% 100.7% 103.0%
    2016 90 101.5% 103.3% 105.7%
    2017 90 102.5% 106.3% 109.8%
    2019 78 100.3% 102.4% 105.6%
    2020 86 99.2% 103.8% 105.6%
    2021 90 100.7% 103.6% 106.7%
    2022 89 101.4% 104.0% 107.5%
    2023 89 100.5% 102.6% 105.3%
    2024 73 103.5% 106.6% 108.6%

Hover over boxplot or outliers for additional information
Chart generated 03/27/2025
Charts and data secured from this U.S. Geological Survey (USGS) web page (identified as IBSP) have not received official USGS approval and as such are provisional and subject to revision. The charts and data are released on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use.


- Strontium, fltd, ICP-OES -
Lab: NWQL, PCode: 01080, MCode: PLA11
Analysis Dates: 10/15/09 through 09/25/24
Open Data Set
Boxplot Description

Water Year = 2024 plotvalue = 105% pctrecov = 105% Water Year = 2024 plotvalue = 106% pctrecov = 106% Water Year = 2024 plotvalue = 94% pctrecov = 94% Water Year = 2021 plotvalue = 95% pctrecov = 95% Water Year = 2021 plotvalue = 95% pctrecov = 95% Water Year = 2021 plotvalue = 95% pctrecov = 95% Water Year = 2021 plotvalue = 93% pctrecov = 93% Water Year = 2021 plotvalue = 92% pctrecov = 92% Water Year = 2017 plotvalue = 108% pctrecov = 108% Water Year = 2016 plotvalue = 117% pctrecov = 117% Water Year = 2015 plotvalue = 112% pctrecov = 112% Water Year = 2015 plotvalue = 92% pctrecov = 92% Water Year = 2014 plotvalue = 109% pctrecov = 109% Water Year = 2014 plotvalue = 109% pctrecov = 109% Water Year = 2014 plotvalue = 70% pctrecov = 55% Water Year = 2012 plotvalue = 112% pctrecov = 112% Water Year = 2011 plotvalue = 108% pctrecov = 108% Water Year = 2011 plotvalue = 96% pctrecov = 96% Water Year = 2011 plotvalue = 92% pctrecov = 92% Water Year = 2010 plotvalue = 91% pctrecov = 91% Water Year = 2024 First Quartile = 98% Median = 99% Third Quartile = 101% Number of Observations = 36 Water Year = 2024 First Quartile = 98% Median = 99% Third Quartile = 101% Number of Observations = 36 Water Year = 2024 First Quartile = 98% Median = 99% Third Quartile = 101% Number of Observations = 36 Water Year = 2024 First Quartile = 98% Median = 99% Third Quartile = 101% Number of Observations = 36 Water Year = 2024 First Quartile = 98% Median = 99% Third Quartile = 101% Number of Observations = 36 Water Year = 2024 First Quartile = 98% Median = 99% Third Quartile = 101% Number of Observations = 36 Water Year = 2024 First Quartile = 98% Median = 99% Third Quartile = 101% Number of Observations = 36 Water Year = 2024 First Quartile = 98% Median = 99% Third Quartile = 101% Number of Observations = 36 Water Year = 2023 First Quartile = 99% Median = 100% Third Quartile = 102% Number of Observations = 42 Water Year = 2023 First Quartile = 99% Median = 100% Third Quartile = 102% Number of Observations = 42 Water Year = 2023 First Quartile = 99% Median = 100% Third Quartile = 102% Number of Observations = 42 Water Year = 2023 First Quartile = 99% Median = 100% Third Quartile = 102% Number of Observations = 42 Water Year = 2023 First Quartile = 99% Median = 100% Third Quartile = 102% Number of Observations = 42 Water Year = 2023 First Quartile = 99% Median = 100% Third Quartile = 102% Number of Observations = 42 Water Year = 2023 First Quartile = 99% Median = 100% Third Quartile = 102% Number of Observations = 42 Water Year = 2023 First Quartile = 99% Median = 100% Third Quartile = 102% Number of Observations = 42 Water Year = 2022 First Quartile = 100% Median = 101% Third Quartile = 103% Number of Observations = 42 Water Year = 2022 First Quartile = 100% Median = 101% Third Quartile = 103% Number of Observations = 42 Water Year = 2022 First Quartile = 100% Median = 101% Third Quartile = 103% Number of Observations = 42 Water Year = 2022 First Quartile = 100% Median = 101% Third Quartile = 103% Number of Observations = 42 Water Year = 2022 First Quartile = 100% Median = 101% Third Quartile = 103% Number of Observations = 42 Water Year = 2022 First Quartile = 100% Median = 101% Third Quartile = 103% Number of Observations = 42 Water Year = 2022 First Quartile = 100% Median = 101% Third Quartile = 103% Number of Observations = 42 Water Year = 2022 First Quartile = 100% Median = 101% Third Quartile = 103% Number of Observations = 42 Water Year = 2021 First Quartile = 99% Median = 101% Third Quartile = 102% Number of Observations = 42 Water Year = 2021 First Quartile = 99% Median = 101% Third Quartile = 102% Number of Observations = 42 Water Year = 2021 First Quartile = 99% Median = 101% Third Quartile = 102% Number of Observations = 42 Water Year = 2021 First Quartile = 99% Median = 101% Third Quartile = 102% Number of Observations = 42 Water Year = 2021 First Quartile = 99% Median = 101% Third Quartile = 102% Number of Observations = 42 Water Year = 2021 First Quartile = 99% Median = 101% Third Quartile = 102% Number of Observations = 42 Water Year = 2021 First Quartile = 99% Median = 101% Third Quartile = 102% Number of Observations = 42 Water Year = 2021 First Quartile = 99% Median = 101% Third Quartile = 102% Number of Observations = 42 Water Year = 2020 First Quartile = 100% Median = 101% Third Quartile = 102% Number of Observations = 39 Water Year = 2020 First Quartile = 100% Median = 101% Third Quartile = 102% Number of Observations = 39 Water Year = 2020 First Quartile = 100% Median = 101% Third Quartile = 102% Number of Observations = 39 Water Year = 2020 First Quartile = 100% Median = 101% Third Quartile = 102% Number of Observations = 39 Water Year = 2020 First Quartile = 100% Median = 101% Third Quartile = 102% Number of Observations = 39 Water Year = 2020 First Quartile = 100% Median = 101% Third Quartile = 102% Number of Observations = 39 Water Year = 2020 First Quartile = 100% Median = 101% Third Quartile = 102% Number of Observations = 39 Water Year = 2020 First Quartile = 100% Median = 101% Third Quartile = 102% Number of Observations = 39 Water Year = 2019 First Quartile = 99% Median = 101% Third Quartile = 102% Number of Observations = 38 Water Year = 2019 First Quartile = 99% Median = 101% Third Quartile = 102% Number of Observations = 38 Water Year = 2019 First Quartile = 99% Median = 101% Third Quartile = 102% Number of Observations = 38 Water Year = 2019 First Quartile = 99% Median = 101% Third Quartile = 102% Number of Observations = 38 Water Year = 2019 First Quartile = 99% Median = 101% Third Quartile = 102% Number of Observations = 38 Water Year = 2019 First Quartile = 99% Median = 101% Third Quartile = 102% Number of Observations = 38 Water Year = 2019 First Quartile = 99% Median = 101% Third Quartile = 102% Number of Observations = 38 Water Year = 2019 First Quartile = 99% Median = 101% Third Quartile = 102% Number of Observations = 38 Water Year = 2017 First Quartile = 101% Median = 102% Third Quartile = 104% Number of Observations = 42 Water Year = 2017 First Quartile = 101% Median = 102% Third Quartile = 104% Number of Observations = 42 Water Year = 2017 First Quartile = 101% Median = 102% Third Quartile = 104% Number of Observations = 42 Water Year = 2017 First Quartile = 101% Median = 102% Third Quartile = 104% Number of Observations = 42 Water Year = 2017 First Quartile = 101% Median = 102% Third Quartile = 104% Number of Observations = 42 Water Year = 2017 First Quartile = 101% Median = 102% Third Quartile = 104% Number of Observations = 42 Water Year = 2017 First Quartile = 101% Median = 102% Third Quartile = 104% Number of Observations = 42 Water Year = 2017 First Quartile = 101% Median = 102% Third Quartile = 104% Number of Observations = 42 Water Year = 2016 First Quartile = 102% Median = 104% Third Quartile = 107% Number of Observations = 42 Water Year = 2016 First Quartile = 102% Median = 104% Third Quartile = 107% Number of Observations = 42 Water Year = 2016 First Quartile = 102% Median = 104% Third Quartile = 107% Number of Observations = 42 Water Year = 2016 First Quartile = 102% Median = 104% Third Quartile = 107% Number of Observations = 42 Water Year = 2016 First Quartile = 102% Median = 104% Third Quartile = 107% Number of Observations = 42 Water Year = 2016 First Quartile = 102% Median = 104% Third Quartile = 107% Number of Observations = 42 Water Year = 2016 First Quartile = 102% Median = 104% Third Quartile = 107% Number of Observations = 42 Water Year = 2016 First Quartile = 102% Median = 104% Third Quartile = 107% Number of Observations = 42 Water Year = 2015 First Quartile = 101% Median = 103% Third Quartile = 105% Number of Observations = 42 Water Year = 2015 First Quartile = 101% Median = 103% Third Quartile = 105% Number of Observations = 42 Water Year = 2015 First Quartile = 101% Median = 103% Third Quartile = 105% Number of Observations = 42 Water Year = 2015 First Quartile = 101% Median = 103% Third Quartile = 105% Number of Observations = 42 Water Year = 2015 First Quartile = 101% Median = 103% Third Quartile = 105% Number of Observations = 42 Water Year = 2015 First Quartile = 101% Median = 103% Third Quartile = 105% Number of Observations = 42 Water Year = 2015 First Quartile = 101% Median = 103% Third Quartile = 105% Number of Observations = 42 Water Year = 2015 First Quartile = 101% Median = 103% Third Quartile = 105% Number of Observations = 42 Water Year = 2014 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 46 Water Year = 2014 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 46 Water Year = 2014 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 46 Water Year = 2014 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 46 Water Year = 2014 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 46 Water Year = 2014 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 46 Water Year = 2014 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 46 Water Year = 2014 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 46 Water Year = 2013 First Quartile = 101% Median = 102% Third Quartile = 104% Number of Observations = 42 Water Year = 2013 First Quartile = 101% Median = 102% Third Quartile = 104% Number of Observations = 42 Water Year = 2013 First Quartile = 101% Median = 102% Third Quartile = 104% Number of Observations = 42 Water Year = 2013 First Quartile = 101% Median = 102% Third Quartile = 104% Number of Observations = 42 Water Year = 2013 First Quartile = 101% Median = 102% Third Quartile = 104% Number of Observations = 42 Water Year = 2013 First Quartile = 101% Median = 102% Third Quartile = 104% Number of Observations = 42 Water Year = 2013 First Quartile = 101% Median = 102% Third Quartile = 104% Number of Observations = 42 Water Year = 2013 First Quartile = 101% Median = 102% Third Quartile = 104% Number of Observations = 42 Water Year = 2012 First Quartile = 101% Median = 103% Third Quartile = 104% Number of Observations = 42 Water Year = 2012 First Quartile = 101% Median = 103% Third Quartile = 104% Number of Observations = 42 Water Year = 2012 First Quartile = 101% Median = 103% Third Quartile = 104% Number of Observations = 42 Water Year = 2012 First Quartile = 101% Median = 103% Third Quartile = 104% Number of Observations = 42 Water Year = 2012 First Quartile = 101% Median = 103% Third Quartile = 104% Number of Observations = 42 Water Year = 2012 First Quartile = 101% Median = 103% Third Quartile = 104% Number of Observations = 42 Water Year = 2012 First Quartile = 101% Median = 103% Third Quartile = 104% Number of Observations = 42 Water Year = 2012 First Quartile = 101% Median = 103% Third Quartile = 104% Number of Observations = 42 Water Year = 2011 First Quartile = 101% Median = 102% Third Quartile = 103% Number of Observations = 94 Water Year = 2011 First Quartile = 101% Median = 102% Third Quartile = 103% Number of Observations = 94 Water Year = 2011 First Quartile = 101% Median = 102% Third Quartile = 103% Number of Observations = 94 Water Year = 2011 First Quartile = 101% Median = 102% Third Quartile = 103% Number of Observations = 94 Water Year = 2011 First Quartile = 101% Median = 102% Third Quartile = 103% Number of Observations = 94 Water Year = 2011 First Quartile = 101% Median = 102% Third Quartile = 103% Number of Observations = 94 Water Year = 2011 First Quartile = 101% Median = 102% Third Quartile = 103% Number of Observations = 94 Water Year = 2011 First Quartile = 101% Median = 102% Third Quartile = 103% Number of Observations = 94 Water Year = 2010 First Quartile = 98% Median = 101% Third Quartile = 102% Number of Observations = 42 Water Year = 2010 First Quartile = 98% Median = 101% Third Quartile = 102% Number of Observations = 42 Water Year = 2010 First Quartile = 98% Median = 101% Third Quartile = 102% Number of Observations = 42 Water Year = 2010 First Quartile = 98% Median = 101% Third Quartile = 102% Number of Observations = 42 Water Year = 2010 First Quartile = 98% Median = 101% Third Quartile = 102% Number of Observations = 42 Water Year = 2010 First Quartile = 98% Median = 101% Third Quartile = 102% Number of Observations = 42 Water Year = 2010 First Quartile = 98% Median = 101% Third Quartile = 102% Number of Observations = 42 Water Year = 2010 First Quartile = 98% Median = 101% Third Quartile = 102% Number of Observations = 42 Y = 1
The SGPlot Procedure

Percent Recovery Statistics for Strontium, fltd, ICP-OES

Analyte Parm-meth Code Water Year # of
Samples		 25th Pctl 50th Pctl
(Median)		 75th Pctl
Strontium, fltd, ICP-OES 01080PLA11 2010 42 98.1% 100.5% 102.3%
    2011 94 100.6% 101.8% 103.2%
    2012 42 101.3% 102.6% 104.4%
    2013 42 100.9% 102.4% 104.2%
    2014 46 99.4% 101.0% 102.8%
    2015 42 101.2% 102.7% 105.1%
    2016 42 102.0% 104.2% 107.0%
    2017 42 101.0% 102.2% 103.5%
    2019 38 99.3% 100.8% 102.1%
    2020 39 99.7% 101.0% 102.3%
    2021 42 99.0% 100.7% 101.5%
    2022 42 99.8% 100.9% 102.7%
    2023 42 99.1% 100.5% 101.6%
    2024 36 98.3% 99.4% 100.9%

Hover over boxplot or outliers for additional information
Chart generated 03/27/2025
Charts and data secured from this U.S. Geological Survey (USGS) web page (identified as IBSP) have not received official USGS approval and as such are provisional and subject to revision. The charts and data are released on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use.


- Strontium, unfltd, ICP-MS, recov -
Lab: NWQL, PCode: 01082, MCode: PLM48
Analysis Dates: 10/11/12 through 04/30/15
Open Data Set
Boxplot Description

Water Year = 2015 plotvalue = 108% pctrecov = 108% Water Year = 2015 First Quartile = 100% Median = 102% Third Quartile = 103% Number of Observations = 27 Water Year = 2015 First Quartile = 100% Median = 102% Third Quartile = 103% Number of Observations = 27 Water Year = 2015 First Quartile = 100% Median = 102% Third Quartile = 103% Number of Observations = 27 Water Year = 2015 First Quartile = 100% Median = 102% Third Quartile = 103% Number of Observations = 27 Water Year = 2015 First Quartile = 100% Median = 102% Third Quartile = 103% Number of Observations = 27 Water Year = 2015 First Quartile = 100% Median = 102% Third Quartile = 103% Number of Observations = 27 Water Year = 2015 First Quartile = 100% Median = 102% Third Quartile = 103% Number of Observations = 27 Water Year = 2015 First Quartile = 100% Median = 102% Third Quartile = 103% Number of Observations = 27 Water Year = 2014 First Quartile = 98% Median = 99% Third Quartile = 100% Number of Observations = 45 Water Year = 2014 First Quartile = 98% Median = 99% Third Quartile = 100% Number of Observations = 45 Water Year = 2014 First Quartile = 98% Median = 99% Third Quartile = 100% Number of Observations = 45 Water Year = 2014 First Quartile = 98% Median = 99% Third Quartile = 100% Number of Observations = 45 Water Year = 2014 First Quartile = 98% Median = 99% Third Quartile = 100% Number of Observations = 45 Water Year = 2014 First Quartile = 98% Median = 99% Third Quartile = 100% Number of Observations = 45 Water Year = 2014 First Quartile = 98% Median = 99% Third Quartile = 100% Number of Observations = 45 Water Year = 2014 First Quartile = 98% Median = 99% Third Quartile = 100% Number of Observations = 45 Water Year = 2013 First Quartile = 99% Median = 101% Third Quartile = 104% Number of Observations = 48 Water Year = 2013 First Quartile = 99% Median = 101% Third Quartile = 104% Number of Observations = 48 Water Year = 2013 First Quartile = 99% Median = 101% Third Quartile = 104% Number of Observations = 48 Water Year = 2013 First Quartile = 99% Median = 101% Third Quartile = 104% Number of Observations = 48 Water Year = 2013 First Quartile = 99% Median = 101% Third Quartile = 104% Number of Observations = 48 Water Year = 2013 First Quartile = 99% Median = 101% Third Quartile = 104% Number of Observations = 48 Water Year = 2013 First Quartile = 99% Median = 101% Third Quartile = 104% Number of Observations = 48 Water Year = 2013 First Quartile = 99% Median = 101% Third Quartile = 104% Number of Observations = 48 Y = 1
The SGPlot Procedure

Percent Recovery Statistics for Strontium, unfltd, ICP-MS, recov

Analyte Parm-meth Code Water Year # of
Samples		 25th Pctl 50th Pctl
(Median)		 75th Pctl
Strontium, unfltd, ICP-MS, recov 01082PLM48 2013 48 99.3% 100.9% 104.2%
    2014 45 97.9% 99.2% 100.4%
    2015 27 100.3% 101.6% 103.3%

Hover over boxplot or outliers for additional information
Chart generated 03/27/2025
Charts and data secured from this U.S. Geological Survey (USGS) web page (identified as IBSP) have not received official USGS approval and as such are provisional and subject to revision. The charts and data are released on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use.


- Strontium, unfltd, ICP-MS, recov -
Lab: NWQL, PCode: 01082, MCode: PLM78
Analysis Dates: 05/12/15 through 09/25/24
Open Data Set
Boxplot Description

Water Year = 2024 plotvalue = 111% pctrecov = 111% Water Year = 2024 plotvalue = 93% pctrecov = 93% Water Year = 2023 plotvalue = 111% pctrecov = 111% Water Year = 2023 plotvalue = 111% pctrecov = 111% Water Year = 2023 plotvalue = 112% pctrecov = 112% Water Year = 2023 plotvalue = 92% pctrecov = 92% Water Year = 2023 plotvalue = 92% pctrecov = 92% Water Year = 2023 plotvalue = 91% pctrecov = 91% Water Year = 2022 plotvalue = 114% pctrecov = 114% Water Year = 2022 plotvalue = 125% pctrecov = 125% Water Year = 2020 plotvalue = 114% pctrecov = 114% Water Year = 2019 plotvalue = 117% pctrecov = 117% Water Year = 2019 plotvalue = 90% pctrecov = 90% Water Year = 2016 plotvalue = 110% pctrecov = 110% Water Year = 2016 plotvalue = 114% pctrecov = 114% Water Year = 2024 First Quartile = 101% Median = 103% Third Quartile = 105% Number of Observations = 42 Water Year = 2024 First Quartile = 101% Median = 103% Third Quartile = 105% Number of Observations = 42 Water Year = 2024 First Quartile = 101% Median = 103% Third Quartile = 105% Number of Observations = 42 Water Year = 2024 First Quartile = 101% Median = 103% Third Quartile = 105% Number of Observations = 42 Water Year = 2024 First Quartile = 101% Median = 103% Third Quartile = 105% Number of Observations = 42 Water Year = 2024 First Quartile = 101% Median = 103% Third Quartile = 105% Number of Observations = 42 Water Year = 2024 First Quartile = 101% Median = 103% Third Quartile = 105% Number of Observations = 42 Water Year = 2024 First Quartile = 101% Median = 103% Third Quartile = 105% Number of Observations = 42 Water Year = 2023 First Quartile = 100% Median = 102% Third Quartile = 104% Number of Observations = 48 Water Year = 2023 First Quartile = 100% Median = 102% Third Quartile = 104% Number of Observations = 48 Water Year = 2023 First Quartile = 100% Median = 102% Third Quartile = 104% Number of Observations = 48 Water Year = 2023 First Quartile = 100% Median = 102% Third Quartile = 104% Number of Observations = 48 Water Year = 2023 First Quartile = 100% Median = 102% Third Quartile = 104% Number of Observations = 48 Water Year = 2023 First Quartile = 100% Median = 102% Third Quartile = 104% Number of Observations = 48 Water Year = 2023 First Quartile = 100% Median = 102% Third Quartile = 104% Number of Observations = 48 Water Year = 2023 First Quartile = 100% Median = 102% Third Quartile = 104% Number of Observations = 48 Water Year = 2022 First Quartile = 98% Median = 101% Third Quartile = 104% Number of Observations = 47 Water Year = 2022 First Quartile = 98% Median = 101% Third Quartile = 104% Number of Observations = 47 Water Year = 2022 First Quartile = 98% Median = 101% Third Quartile = 104% Number of Observations = 47 Water Year = 2022 First Quartile = 98% Median = 101% Third Quartile = 104% Number of Observations = 47 Water Year = 2022 First Quartile = 98% Median = 101% Third Quartile = 104% Number of Observations = 47 Water Year = 2022 First Quartile = 98% Median = 101% Third Quartile = 104% Number of Observations = 47 Water Year = 2022 First Quartile = 98% Median = 101% Third Quartile = 104% Number of Observations = 47 Water Year = 2022 First Quartile = 98% Median = 101% Third Quartile = 104% Number of Observations = 47 Water Year = 2021 First Quartile = 98% Median = 102% Third Quartile = 104% Number of Observations = 48 Water Year = 2021 First Quartile = 98% Median = 102% Third Quartile = 104% Number of Observations = 48 Water Year = 2021 First Quartile = 98% Median = 102% Third Quartile = 104% Number of Observations = 48 Water Year = 2021 First Quartile = 98% Median = 102% Third Quartile = 104% Number of Observations = 48 Water Year = 2021 First Quartile = 98% Median = 102% Third Quartile = 104% Number of Observations = 48 Water Year = 2021 First Quartile = 98% Median = 102% Third Quartile = 104% Number of Observations = 48 Water Year = 2021 First Quartile = 98% Median = 102% Third Quartile = 104% Number of Observations = 48 Water Year = 2021 First Quartile = 98% Median = 102% Third Quartile = 104% Number of Observations = 48 Water Year = 2020 First Quartile = 100% Median = 101% Third Quartile = 105% Number of Observations = 44 Water Year = 2020 First Quartile = 100% Median = 101% Third Quartile = 105% Number of Observations = 44 Water Year = 2020 First Quartile = 100% Median = 101% Third Quartile = 105% Number of Observations = 44 Water Year = 2020 First Quartile = 100% Median = 101% Third Quartile = 105% Number of Observations = 44 Water Year = 2020 First Quartile = 100% Median = 101% Third Quartile = 105% Number of Observations = 44 Water Year = 2020 First Quartile = 100% Median = 101% Third Quartile = 105% Number of Observations = 44 Water Year = 2020 First Quartile = 100% Median = 101% Third Quartile = 105% Number of Observations = 44 Water Year = 2020 First Quartile = 100% Median = 101% Third Quartile = 105% Number of Observations = 44 Water Year = 2019 First Quartile = 100% Median = 103% Third Quartile = 105% Number of Observations = 40 Water Year = 2019 First Quartile = 100% Median = 103% Third Quartile = 105% Number of Observations = 40 Water Year = 2019 First Quartile = 100% Median = 103% Third Quartile = 105% Number of Observations = 40 Water Year = 2019 First Quartile = 100% Median = 103% Third Quartile = 105% Number of Observations = 40 Water Year = 2019 First Quartile = 100% Median = 103% Third Quartile = 105% Number of Observations = 40 Water Year = 2019 First Quartile = 100% Median = 103% Third Quartile = 105% Number of Observations = 40 Water Year = 2019 First Quartile = 100% Median = 103% Third Quartile = 105% Number of Observations = 40 Water Year = 2019 First Quartile = 100% Median = 103% Third Quartile = 105% Number of Observations = 40 Water Year = 2017 First Quartile = 101% Median = 104% Third Quartile = 106% Number of Observations = 48 Water Year = 2017 First Quartile = 101% Median = 104% Third Quartile = 106% Number of Observations = 48 Water Year = 2017 First Quartile = 101% Median = 104% Third Quartile = 106% Number of Observations = 48 Water Year = 2017 First Quartile = 101% Median = 104% Third Quartile = 106% Number of Observations = 48 Water Year = 2017 First Quartile = 101% Median = 104% Third Quartile = 106% Number of Observations = 48 Water Year = 2017 First Quartile = 101% Median = 104% Third Quartile = 106% Number of Observations = 48 Water Year = 2017 First Quartile = 101% Median = 104% Third Quartile = 106% Number of Observations = 48 Water Year = 2017 First Quartile = 101% Median = 104% Third Quartile = 106% Number of Observations = 48 Water Year = 2016 First Quartile = 101% Median = 103% Third Quartile = 104% Number of Observations = 48 Water Year = 2016 First Quartile = 101% Median = 103% Third Quartile = 104% Number of Observations = 48 Water Year = 2016 First Quartile = 101% Median = 103% Third Quartile = 104% Number of Observations = 48 Water Year = 2016 First Quartile = 101% Median = 103% Third Quartile = 104% Number of Observations = 48 Water Year = 2016 First Quartile = 101% Median = 103% Third Quartile = 104% Number of Observations = 48 Water Year = 2016 First Quartile = 101% Median = 103% Third Quartile = 104% Number of Observations = 48 Water Year = 2016 First Quartile = 101% Median = 103% Third Quartile = 104% Number of Observations = 48 Water Year = 2016 First Quartile = 101% Median = 103% Third Quartile = 104% Number of Observations = 48 Water Year = 2015 First Quartile = 100% Median = 103% Third Quartile = 104% Number of Observations = 21 Water Year = 2015 First Quartile = 100% Median = 103% Third Quartile = 104% Number of Observations = 21 Water Year = 2015 First Quartile = 100% Median = 103% Third Quartile = 104% Number of Observations = 21 Water Year = 2015 First Quartile = 100% Median = 103% Third Quartile = 104% Number of Observations = 21 Water Year = 2015 First Quartile = 100% Median = 103% Third Quartile = 104% Number of Observations = 21 Water Year = 2015 First Quartile = 100% Median = 103% Third Quartile = 104% Number of Observations = 21 Water Year = 2015 First Quartile = 100% Median = 103% Third Quartile = 104% Number of Observations = 21 Water Year = 2015 First Quartile = 100% Median = 103% Third Quartile = 104% Number of Observations = 21 Y = 1
The SGPlot Procedure

Percent Recovery Statistics for Strontium, unfltd, ICP-MS, recov

Analyte Parm-meth Code Water Year # of
Samples		 25th Pctl 50th Pctl
(Median)		 75th Pctl
Strontium, unfltd, ICP-MS, recov 01082PLM78 2015 21 100.5% 102.6% 103.7%
    2016 48 101.2% 103.0% 104.1%
    2017 48 101.0% 103.7% 106.0%
    2019 40 99.7% 102.6% 105.1%
    2020 44 99.8% 101.4% 105.3%
    2021 48 98.1% 102.3% 103.9%
    2022 47 98.1% 101.0% 104.3%
    2023 48 99.5% 101.7% 103.6%
    2024 42 101.3% 102.8% 104.6%

Hover over boxplot or outliers for additional information
Chart generated 03/27/2025
Charts and data secured from this U.S. Geological Survey (USGS) web page (identified as IBSP) have not received official USGS approval and as such are provisional and subject to revision. The charts and data are released on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use.


- Thallium, fltd, ICP-MS -
Lab: NWQL, PCode: 01057, MCode: PLM40
Analysis Dates: 10/09/09 through 09/25/24
Open Data Set
Boxplot Description

Water Year = 2019 plotvalue = 70% pctrecov = 1% Water Year = 2017 plotvalue = 86% pctrecov = 86% Water Year = 2017 plotvalue = 83% pctrecov = 83% Water Year = 2016 plotvalue = 112% pctrecov = 112% Water Year = 2016 plotvalue = 70% pctrecov = 18% Water Year = 2016 plotvalue = 70% pctrecov = 1% Water Year = 2016 plotvalue = 70% pctrecov = 1% Water Year = 2015 plotvalue = 70% pctrecov = 36% Water Year = 2015 plotvalue = 70% pctrecov = 4% Water Year = 2014 plotvalue = 110% pctrecov = 110% Water Year = 2014 plotvalue = 111% pctrecov = 111% Water Year = 2014 plotvalue = 85% pctrecov = 85% Water Year = 2014 plotvalue = 70% pctrecov = 8% Water Year = 2014 plotvalue = 70% pctrecov = 36% Water Year = 2013 plotvalue = 70% pctrecov = 1% Water Year = 2013 plotvalue = 70% pctrecov = 2% Water Year = 2013 plotvalue = 70% pctrecov = 0% Water Year = 2012 plotvalue = 80% pctrecov = 80% Water Year = 2012 plotvalue = 70% pctrecov = 0% Water Year = 2012 plotvalue = 70% pctrecov = 0% Water Year = 2011 plotvalue = 82% pctrecov = 82% Water Year = 2011 plotvalue = 70% pctrecov = 1% Water Year = 2010 plotvalue = 109% pctrecov = 109% Water Year = 2010 plotvalue = 109% pctrecov = 109% Water Year = 2010 plotvalue = 110% pctrecov = 110% Water Year = 2010 plotvalue = 87% pctrecov = 87% Water Year = 2010 plotvalue = 86% pctrecov = 86% Water Year = 2010 plotvalue = 86% pctrecov = 86% Water Year = 2010 plotvalue = 78% pctrecov = 78% Water Year = 2024 First Quartile = 95% Median = 97% Third Quartile = 99% Number of Observations = 39 Water Year = 2024 First Quartile = 95% Median = 97% Third Quartile = 99% Number of Observations = 39 Water Year = 2024 First Quartile = 95% Median = 97% Third Quartile = 99% Number of Observations = 39 Water Year = 2024 First Quartile = 95% Median = 97% Third Quartile = 99% Number of Observations = 39 Water Year = 2024 First Quartile = 95% Median = 97% Third Quartile = 99% Number of Observations = 39 Water Year = 2024 First Quartile = 95% Median = 97% Third Quartile = 99% Number of Observations = 39 Water Year = 2024 First Quartile = 95% Median = 97% Third Quartile = 99% Number of Observations = 39 Water Year = 2024 First Quartile = 95% Median = 97% Third Quartile = 99% Number of Observations = 39 Water Year = 2023 First Quartile = 90% Median = 94% Third Quartile = 98% Number of Observations = 48 Water Year = 2023 First Quartile = 90% Median = 94% Third Quartile = 98% Number of Observations = 48 Water Year = 2023 First Quartile = 90% Median = 94% Third Quartile = 98% Number of Observations = 48 Water Year = 2023 First Quartile = 90% Median = 94% Third Quartile = 98% Number of Observations = 48 Water Year = 2023 First Quartile = 90% Median = 94% Third Quartile = 98% Number of Observations = 48 Water Year = 2023 First Quartile = 90% Median = 94% Third Quartile = 98% Number of Observations = 48 Water Year = 2023 First Quartile = 90% Median = 94% Third Quartile = 98% Number of Observations = 48 Water Year = 2023 First Quartile = 90% Median = 94% Third Quartile = 98% Number of Observations = 48 Water Year = 2022 First Quartile = 92% Median = 98% Third Quartile = 103% Number of Observations = 47 Water Year = 2022 First Quartile = 92% Median = 98% Third Quartile = 103% Number of Observations = 47 Water Year = 2022 First Quartile = 92% Median = 98% Third Quartile = 103% Number of Observations = 47 Water Year = 2022 First Quartile = 92% Median = 98% Third Quartile = 103% Number of Observations = 47 Water Year = 2022 First Quartile = 92% Median = 98% Third Quartile = 103% Number of Observations = 47 Water Year = 2022 First Quartile = 92% Median = 98% Third Quartile = 103% Number of Observations = 47 Water Year = 2022 First Quartile = 92% Median = 98% Third Quartile = 103% Number of Observations = 47 Water Year = 2022 First Quartile = 92% Median = 98% Third Quartile = 103% Number of Observations = 47 Water Year = 2021 First Quartile = 93% Median = 96% Third Quartile = 100% Number of Observations = 40 Water Year = 2021 First Quartile = 93% Median = 96% Third Quartile = 100% Number of Observations = 40 Water Year = 2021 First Quartile = 93% Median = 96% Third Quartile = 100% Number of Observations = 40 Water Year = 2021 First Quartile = 93% Median = 96% Third Quartile = 100% Number of Observations = 40 Water Year = 2021 First Quartile = 93% Median = 96% Third Quartile = 100% Number of Observations = 40 Water Year = 2021 First Quartile = 93% Median = 96% Third Quartile = 100% Number of Observations = 40 Water Year = 2021 First Quartile = 93% Median = 96% Third Quartile = 100% Number of Observations = 40 Water Year = 2021 First Quartile = 93% Median = 96% Third Quartile = 100% Number of Observations = 40 Water Year = 2020 First Quartile = 96% Median = 98% Third Quartile = 101% Number of Observations = 38 Water Year = 2020 First Quartile = 96% Median = 98% Third Quartile = 101% Number of Observations = 38 Water Year = 2020 First Quartile = 96% Median = 98% Third Quartile = 101% Number of Observations = 38 Water Year = 2020 First Quartile = 96% Median = 98% Third Quartile = 101% Number of Observations = 38 Water Year = 2020 First Quartile = 96% Median = 98% Third Quartile = 101% Number of Observations = 38 Water Year = 2020 First Quartile = 96% Median = 98% Third Quartile = 101% Number of Observations = 38 Water Year = 2020 First Quartile = 96% Median = 98% Third Quartile = 101% Number of Observations = 38 Water Year = 2020 First Quartile = 96% Median = 98% Third Quartile = 101% Number of Observations = 38 Water Year = 2019 First Quartile = 92% Median = 97% Third Quartile = 101% Number of Observations = 46 Water Year = 2019 First Quartile = 92% Median = 97% Third Quartile = 101% Number of Observations = 46 Water Year = 2019 First Quartile = 92% Median = 97% Third Quartile = 101% Number of Observations = 46 Water Year = 2019 First Quartile = 92% Median = 97% Third Quartile = 101% Number of Observations = 46 Water Year = 2019 First Quartile = 92% Median = 97% Third Quartile = 101% Number of Observations = 46 Water Year = 2019 First Quartile = 92% Median = 97% Third Quartile = 101% Number of Observations = 46 Water Year = 2019 First Quartile = 92% Median = 97% Third Quartile = 101% Number of Observations = 46 Water Year = 2019 First Quartile = 92% Median = 97% Third Quartile = 101% Number of Observations = 46 Water Year = 2017 First Quartile = 96% Median = 99% Third Quartile = 102% Number of Observations = 66 Water Year = 2017 First Quartile = 96% Median = 99% Third Quartile = 102% Number of Observations = 66 Water Year = 2017 First Quartile = 96% Median = 99% Third Quartile = 102% Number of Observations = 66 Water Year = 2017 First Quartile = 96% Median = 99% Third Quartile = 102% Number of Observations = 66 Water Year = 2017 First Quartile = 96% Median = 99% Third Quartile = 102% Number of Observations = 66 Water Year = 2017 First Quartile = 96% Median = 99% Third Quartile = 102% Number of Observations = 66 Water Year = 2017 First Quartile = 96% Median = 99% Third Quartile = 102% Number of Observations = 66 Water Year = 2017 First Quartile = 96% Median = 99% Third Quartile = 102% Number of Observations = 66 Water Year = 2016 First Quartile = 97% Median = 98% Third Quartile = 102% Number of Observations = 66 Water Year = 2016 First Quartile = 97% Median = 98% Third Quartile = 102% Number of Observations = 66 Water Year = 2016 First Quartile = 97% Median = 98% Third Quartile = 102% Number of Observations = 66 Water Year = 2016 First Quartile = 97% Median = 98% Third Quartile = 102% Number of Observations = 66 Water Year = 2016 First Quartile = 97% Median = 98% Third Quartile = 102% Number of Observations = 66 Water Year = 2016 First Quartile = 97% Median = 98% Third Quartile = 102% Number of Observations = 66 Water Year = 2016 First Quartile = 97% Median = 98% Third Quartile = 102% Number of Observations = 66 Water Year = 2016 First Quartile = 97% Median = 98% Third Quartile = 102% Number of Observations = 66 Water Year = 2015 First Quartile = 97% Median = 100% Third Quartile = 105% Number of Observations = 66 Water Year = 2015 First Quartile = 97% Median = 100% Third Quartile = 105% Number of Observations = 66 Water Year = 2015 First Quartile = 97% Median = 100% Third Quartile = 105% Number of Observations = 66 Water Year = 2015 First Quartile = 97% Median = 100% Third Quartile = 105% Number of Observations = 66 Water Year = 2015 First Quartile = 97% Median = 100% Third Quartile = 105% Number of Observations = 66 Water Year = 2015 First Quartile = 97% Median = 100% Third Quartile = 105% Number of Observations = 66 Water Year = 2015 First Quartile = 97% Median = 100% Third Quartile = 105% Number of Observations = 66 Water Year = 2015 First Quartile = 97% Median = 100% Third Quartile = 105% Number of Observations = 66 Water Year = 2014 First Quartile = 95% Median = 97% Third Quartile = 100% Number of Observations = 61 Water Year = 2014 First Quartile = 95% Median = 97% Third Quartile = 100% Number of Observations = 61 Water Year = 2014 First Quartile = 95% Median = 97% Third Quartile = 100% Number of Observations = 61 Water Year = 2014 First Quartile = 95% Median = 97% Third Quartile = 100% Number of Observations = 61 Water Year = 2014 First Quartile = 95% Median = 97% Third Quartile = 100% Number of Observations = 61 Water Year = 2014 First Quartile = 95% Median = 97% Third Quartile = 100% Number of Observations = 61 Water Year = 2014 First Quartile = 95% Median = 97% Third Quartile = 100% Number of Observations = 61 Water Year = 2014 First Quartile = 95% Median = 97% Third Quartile = 100% Number of Observations = 61 Water Year = 2013 First Quartile = 100% Median = 105% Third Quartile = 110% Number of Observations = 60 Water Year = 2013 First Quartile = 100% Median = 105% Third Quartile = 110% Number of Observations = 60 Water Year = 2013 First Quartile = 100% Median = 105% Third Quartile = 110% Number of Observations = 60 Water Year = 2013 First Quartile = 100% Median = 105% Third Quartile = 110% Number of Observations = 60 Water Year = 2013 First Quartile = 100% Median = 105% Third Quartile = 110% Number of Observations = 60 Water Year = 2013 First Quartile = 100% Median = 105% Third Quartile = 110% Number of Observations = 60 Water Year = 2013 First Quartile = 100% Median = 105% Third Quartile = 110% Number of Observations = 60 Water Year = 2013 First Quartile = 100% Median = 105% Third Quartile = 110% Number of Observations = 60 Water Year = 2012 First Quartile = 100% Median = 105% Third Quartile = 108% Number of Observations = 84 Water Year = 2012 First Quartile = 100% Median = 105% Third Quartile = 108% Number of Observations = 84 Water Year = 2012 First Quartile = 100% Median = 105% Third Quartile = 108% Number of Observations = 84 Water Year = 2012 First Quartile = 100% Median = 105% Third Quartile = 108% Number of Observations = 84 Water Year = 2012 First Quartile = 100% Median = 105% Third Quartile = 108% Number of Observations = 84 Water Year = 2012 First Quartile = 100% Median = 105% Third Quartile = 108% Number of Observations = 84 Water Year = 2012 First Quartile = 100% Median = 105% Third Quartile = 108% Number of Observations = 84 Water Year = 2012 First Quartile = 100% Median = 105% Third Quartile = 108% Number of Observations = 84 Water Year = 2011 First Quartile = 92% Median = 95% Third Quartile = 97% Number of Observations = 130 Water Year = 2011 First Quartile = 92% Median = 95% Third Quartile = 97% Number of Observations = 130 Water Year = 2011 First Quartile = 92% Median = 95% Third Quartile = 97% Number of Observations = 130 Water Year = 2011 First Quartile = 92% Median = 95% Third Quartile = 97% Number of Observations = 130 Water Year = 2011 First Quartile = 92% Median = 95% Third Quartile = 97% Number of Observations = 130 Water Year = 2011 First Quartile = 92% Median = 95% Third Quartile = 97% Number of Observations = 130 Water Year = 2011 First Quartile = 92% Median = 95% Third Quartile = 97% Number of Observations = 130 Water Year = 2011 First Quartile = 92% Median = 95% Third Quartile = 97% Number of Observations = 130 Water Year = 2010 First Quartile = 95% Median = 97% Third Quartile = 101% Number of Observations = 132 Water Year = 2010 First Quartile = 95% Median = 97% Third Quartile = 101% Number of Observations = 132 Water Year = 2010 First Quartile = 95% Median = 97% Third Quartile = 101% Number of Observations = 132 Water Year = 2010 First Quartile = 95% Median = 97% Third Quartile = 101% Number of Observations = 132 Water Year = 2010 First Quartile = 95% Median = 97% Third Quartile = 101% Number of Observations = 132 Water Year = 2010 First Quartile = 95% Median = 97% Third Quartile = 101% Number of Observations = 132 Water Year = 2010 First Quartile = 95% Median = 97% Third Quartile = 101% Number of Observations = 132 Water Year = 2010 First Quartile = 95% Median = 97% Third Quartile = 101% Number of Observations = 132 Y = 1
The SGPlot Procedure

Percent Recovery Statistics for Thallium, fltd, ICP-MS

Analyte Parm-meth Code Water Year # of
Samples		 25th Pctl 50th Pctl
(Median)		 75th Pctl
Thallium, fltd, ICP-MS 01057PLM40 2010 132 95.2% 97.5% 100.5%
    2011 130 91.6% 94.5% 96.8%
    2012 84 100.1% 105.1% 108.4%
    2013 60 100.3% 104.8% 110.0%
    2014 61 95.2% 97.3% 100.4%
    2015 66 96.8% 99.5% 104.9%
    2016 66 96.7% 98.4% 102.5%
    2017 66 95.7% 99.1% 102.0%
    2019 46 91.7% 97.2% 100.5%
    2020 38 96.4% 98.2% 100.7%
    2021 40 92.7% 96.4% 100.0%
    2022 47 92.1% 98.0% 103.0%
    2023 48 89.8% 94.4% 98.0%
    2024 39 95.2% 97.1% 99.3%

Hover over boxplot or outliers for additional information
Chart generated 03/27/2025
Charts and data secured from this U.S. Geological Survey (USGS) web page (identified as IBSP) have not received official USGS approval and as such are provisional and subject to revision. The charts and data are released on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use.


- Thallium, unfltd, ICP-MS, recov -
Lab: NWQL, PCode: 01059, MCode: PLM48
Analysis Dates: 10/06/09 through 10/08/14
Open Data Set
Boxplot Description

Water Year = 2014 plotvalue = 111% pctrecov = 111% Water Year = 2014 plotvalue = 130% pctrecov = 131% Water Year = 2014 First Quartile = 79% Median = 83% Third Quartile = 86% Number of Observations = 45 Water Year = 2014 First Quartile = 79% Median = 83% Third Quartile = 86% Number of Observations = 45 Water Year = 2014 First Quartile = 79% Median = 83% Third Quartile = 86% Number of Observations = 45 Water Year = 2014 First Quartile = 79% Median = 83% Third Quartile = 86% Number of Observations = 45 Water Year = 2014 First Quartile = 79% Median = 83% Third Quartile = 86% Number of Observations = 45 Water Year = 2014 First Quartile = 79% Median = 83% Third Quartile = 86% Number of Observations = 45 Water Year = 2014 First Quartile = 79% Median = 83% Third Quartile = 86% Number of Observations = 45 Water Year = 2014 First Quartile = 79% Median = 83% Third Quartile = 86% Number of Observations = 45 Water Year = 2013 First Quartile = 83% Median = 87% Third Quartile = 94% Number of Observations = 48 Water Year = 2013 First Quartile = 83% Median = 87% Third Quartile = 94% Number of Observations = 48 Water Year = 2013 First Quartile = 83% Median = 87% Third Quartile = 94% Number of Observations = 48 Water Year = 2013 First Quartile = 83% Median = 87% Third Quartile = 94% Number of Observations = 48 Water Year = 2013 First Quartile = 83% Median = 87% Third Quartile = 94% Number of Observations = 48 Water Year = 2013 First Quartile = 83% Median = 87% Third Quartile = 94% Number of Observations = 48 Water Year = 2013 First Quartile = 83% Median = 87% Third Quartile = 94% Number of Observations = 48 Water Year = 2013 First Quartile = 83% Median = 87% Third Quartile = 94% Number of Observations = 48 Water Year = 2011 First Quartile = 80% Median = 84% Third Quartile = 90% Number of Observations = 48 Water Year = 2011 First Quartile = 80% Median = 84% Third Quartile = 90% Number of Observations = 48 Water Year = 2011 First Quartile = 80% Median = 84% Third Quartile = 90% Number of Observations = 48 Water Year = 2011 First Quartile = 80% Median = 84% Third Quartile = 90% Number of Observations = 48 Water Year = 2011 First Quartile = 80% Median = 84% Third Quartile = 90% Number of Observations = 48 Water Year = 2011 First Quartile = 80% Median = 84% Third Quartile = 90% Number of Observations = 48 Water Year = 2011 First Quartile = 80% Median = 84% Third Quartile = 90% Number of Observations = 48 Water Year = 2011 First Quartile = 80% Median = 84% Third Quartile = 90% Number of Observations = 48 Water Year = 2010 First Quartile = 93% Median = 96% Third Quartile = 99% Number of Observations = 48 Water Year = 2010 First Quartile = 93% Median = 96% Third Quartile = 99% Number of Observations = 48 Water Year = 2010 First Quartile = 93% Median = 96% Third Quartile = 99% Number of Observations = 48 Water Year = 2010 First Quartile = 93% Median = 96% Third Quartile = 99% Number of Observations = 48 Water Year = 2010 First Quartile = 93% Median = 96% Third Quartile = 99% Number of Observations = 48 Water Year = 2010 First Quartile = 93% Median = 96% Third Quartile = 99% Number of Observations = 48 Water Year = 2010 First Quartile = 93% Median = 96% Third Quartile = 99% Number of Observations = 48 Water Year = 2010 First Quartile = 93% Median = 96% Third Quartile = 99% Number of Observations = 48 Water Year = 2009 First Quartile = 86% Median = 86% Third Quartile = 87% Number of Observations = 4 Water Year = 2009 First Quartile = 86% Median = 86% Third Quartile = 87% Number of Observations = 4 Water Year = 2009 First Quartile = 86% Median = 86% Third Quartile = 87% Number of Observations = 4 Water Year = 2009 First Quartile = 86% Median = 86% Third Quartile = 87% Number of Observations = 4 Water Year = 2009 First Quartile = 86% Median = 86% Third Quartile = 87% Number of Observations = 4 Water Year = 2009 First Quartile = 86% Median = 86% Third Quartile = 87% Number of Observations = 4 Water Year = 2009 First Quartile = 86% Median = 86% Third Quartile = 87% Number of Observations = 4 Water Year = 2009 First Quartile = 86% Median = 86% Third Quartile = 87% Number of Observations = 4 Y = 1
The SGPlot Procedure

Percent Recovery Statistics for Thallium, unfltd, ICP-MS, recov

Analyte Parm-meth Code Water Year # of
Samples		 25th Pctl 50th Pctl
(Median)		 75th Pctl
Thallium, unfltd, ICP-MS, recov 01059PLM48 2009 4 85.6% 86.2% 87.0%
    2010 48 93.4% 96.4% 98.8%
    2011 48 80.0% 84.0% 89.6%
    2013 48 82.7% 87.0% 93.8%
    2014 45 78.8% 82.6% 85.7%

Hover over boxplot or outliers for additional information
Chart generated 03/27/2025
Charts and data secured from this U.S. Geological Survey (USGS) web page (identified as IBSP) have not received official USGS approval and as such are provisional and subject to revision. The charts and data are released on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use.


- Thallium, unfltd, ICP-MS, recov -
Lab: NWQL, PCode: 01059, MCode: PLM78
Analysis Dates: 10/26/23 through 09/25/24
Open Data Set
Boxplot Description

Water Year = 2024 First Quartile = 93% Median = 95% Third Quartile = 99% Number of Observations = 41 Water Year = 2024 First Quartile = 93% Median = 95% Third Quartile = 99% Number of Observations = 41 Water Year = 2024 First Quartile = 93% Median = 95% Third Quartile = 99% Number of Observations = 41 Water Year = 2024 First Quartile = 93% Median = 95% Third Quartile = 99% Number of Observations = 41 Water Year = 2024 First Quartile = 93% Median = 95% Third Quartile = 99% Number of Observations = 41 Water Year = 2024 First Quartile = 93% Median = 95% Third Quartile = 99% Number of Observations = 41 Water Year = 2024 First Quartile = 93% Median = 95% Third Quartile = 99% Number of Observations = 41 Water Year = 2024 First Quartile = 93% Median = 95% Third Quartile = 99% Number of Observations = 41 Y = 1
The SGPlot Procedure

Percent Recovery Statistics for Thallium, unfltd, ICP-MS, recov

Analyte Parm-meth Code Water Year # of
Samples		 25th Pctl 50th Pctl
(Median)		 75th Pctl
Thallium, unfltd, ICP-MS, recov 01059PLM78 2024 41 92.9% 95.3% 99.4%

Hover over boxplot or outliers for additional information
Chart generated 03/27/2025
Charts and data secured from this U.S. Geological Survey (USGS) web page (identified as IBSP) have not received official USGS approval and as such are provisional and subject to revision. The charts and data are released on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use.


- Uranium, fltd, ICP-MS -
Lab: NWQL, PCode: 22703, MCode: PLM43
Analysis Dates: 10/09/09 through 09/28/24
Open Data Set
Boxplot Description

Water Year = 2024 plotvalue = 117% pctrecov = 117% Water Year = 2023 plotvalue = 120% pctrecov = 120% Water Year = 2023 plotvalue = 88% pctrecov = 88% Water Year = 2023 plotvalue = 87% pctrecov = 87% Water Year = 2021 plotvalue = 124% pctrecov = 124% Water Year = 2021 plotvalue = 127% pctrecov = 127% Water Year = 2019 plotvalue = 70% pctrecov = 5% Water Year = 2016 plotvalue = 109% pctrecov = 109% Water Year = 2016 plotvalue = 130% pctrecov = 723% Water Year = 2016 plotvalue = 70% pctrecov = 1% Water Year = 2016 plotvalue = 70% pctrecov = 2% Water Year = 2015 plotvalue = 113% pctrecov = 113% Water Year = 2015 plotvalue = 117% pctrecov = 117% Water Year = 2015 plotvalue = 89% pctrecov = 89% Water Year = 2015 plotvalue = 70% pctrecov = 8% Water Year = 2014 plotvalue = 108% pctrecov = 108% Water Year = 2014 plotvalue = 111% pctrecov = 111% Water Year = 2014 plotvalue = 130% pctrecov = 647% Water Year = 2014 plotvalue = 70% pctrecov = 2% Water Year = 2014 plotvalue = 70% pctrecov = 1% Water Year = 2012 plotvalue = 110% pctrecov = 110% Water Year = 2012 plotvalue = 130% pctrecov = 211% Water Year = 2012 plotvalue = 92% pctrecov = 92% Water Year = 2012 plotvalue = 92% pctrecov = 92% Water Year = 2012 plotvalue = 91% pctrecov = 91% Water Year = 2012 plotvalue = 70% pctrecov = 1% Water Year = 2012 plotvalue = 70% pctrecov = 11% Water Year = 2011 plotvalue = 130% pctrecov = 4480% Water Year = 2011 plotvalue = 70% pctrecov = 13% Water Year = 2010 plotvalue = 120% pctrecov = 120% Water Year = 2010 plotvalue = 87% pctrecov = 87% Water Year = 2024 First Quartile = 100% Median = 102% Third Quartile = 105% Number of Observations = 73 Water Year = 2024 First Quartile = 100% Median = 102% Third Quartile = 105% Number of Observations = 73 Water Year = 2024 First Quartile = 100% Median = 102% Third Quartile = 105% Number of Observations = 73 Water Year = 2024 First Quartile = 100% Median = 102% Third Quartile = 105% Number of Observations = 73 Water Year = 2024 First Quartile = 100% Median = 102% Third Quartile = 105% Number of Observations = 73 Water Year = 2024 First Quartile = 100% Median = 102% Third Quartile = 105% Number of Observations = 73 Water Year = 2024 First Quartile = 100% Median = 102% Third Quartile = 105% Number of Observations = 73 Water Year = 2024 First Quartile = 100% Median = 102% Third Quartile = 105% Number of Observations = 73 Water Year = 2023 First Quartile = 100% Median = 105% Third Quartile = 108% Number of Observations = 89 Water Year = 2023 First Quartile = 100% Median = 105% Third Quartile = 108% Number of Observations = 89 Water Year = 2023 First Quartile = 100% Median = 105% Third Quartile = 108% Number of Observations = 89 Water Year = 2023 First Quartile = 100% Median = 105% Third Quartile = 108% Number of Observations = 89 Water Year = 2023 First Quartile = 100% Median = 105% Third Quartile = 108% Number of Observations = 89 Water Year = 2023 First Quartile = 100% Median = 105% Third Quartile = 108% Number of Observations = 89 Water Year = 2023 First Quartile = 100% Median = 105% Third Quartile = 108% Number of Observations = 89 Water Year = 2023 First Quartile = 100% Median = 105% Third Quartile = 108% Number of Observations = 89 Water Year = 2022 First Quartile = 100% Median = 105% Third Quartile = 109% Number of Observations = 89 Water Year = 2022 First Quartile = 100% Median = 105% Third Quartile = 109% Number of Observations = 89 Water Year = 2022 First Quartile = 100% Median = 105% Third Quartile = 109% Number of Observations = 89 Water Year = 2022 First Quartile = 100% Median = 105% Third Quartile = 109% Number of Observations = 89 Water Year = 2022 First Quartile = 100% Median = 105% Third Quartile = 109% Number of Observations = 89 Water Year = 2022 First Quartile = 100% Median = 105% Third Quartile = 109% Number of Observations = 89 Water Year = 2022 First Quartile = 100% Median = 105% Third Quartile = 109% Number of Observations = 89 Water Year = 2022 First Quartile = 100% Median = 105% Third Quartile = 109% Number of Observations = 89 Water Year = 2021 First Quartile = 102% Median = 106% Third Quartile = 110% Number of Observations = 90 Water Year = 2021 First Quartile = 102% Median = 106% Third Quartile = 110% Number of Observations = 90 Water Year = 2021 First Quartile = 102% Median = 106% Third Quartile = 110% Number of Observations = 90 Water Year = 2021 First Quartile = 102% Median = 106% Third Quartile = 110% Number of Observations = 90 Water Year = 2021 First Quartile = 102% Median = 106% Third Quartile = 110% Number of Observations = 90 Water Year = 2021 First Quartile = 102% Median = 106% Third Quartile = 110% Number of Observations = 90 Water Year = 2021 First Quartile = 102% Median = 106% Third Quartile = 110% Number of Observations = 90 Water Year = 2021 First Quartile = 102% Median = 106% Third Quartile = 110% Number of Observations = 90 Water Year = 2020 First Quartile = 97% Median = 102% Third Quartile = 105% Number of Observations = 86 Water Year = 2020 First Quartile = 97% Median = 102% Third Quartile = 105% Number of Observations = 86 Water Year = 2020 First Quartile = 97% Median = 102% Third Quartile = 105% Number of Observations = 86 Water Year = 2020 First Quartile = 97% Median = 102% Third Quartile = 105% Number of Observations = 86 Water Year = 2020 First Quartile = 97% Median = 102% Third Quartile = 105% Number of Observations = 86 Water Year = 2020 First Quartile = 97% Median = 102% Third Quartile = 105% Number of Observations = 86 Water Year = 2020 First Quartile = 97% Median = 102% Third Quartile = 105% Number of Observations = 86 Water Year = 2020 First Quartile = 97% Median = 102% Third Quartile = 105% Number of Observations = 86 Water Year = 2019 First Quartile = 93% Median = 97% Third Quartile = 103% Number of Observations = 78 Water Year = 2019 First Quartile = 93% Median = 97% Third Quartile = 103% Number of Observations = 78 Water Year = 2019 First Quartile = 93% Median = 97% Third Quartile = 103% Number of Observations = 78 Water Year = 2019 First Quartile = 93% Median = 97% Third Quartile = 103% Number of Observations = 78 Water Year = 2019 First Quartile = 93% Median = 97% Third Quartile = 103% Number of Observations = 78 Water Year = 2019 First Quartile = 93% Median = 97% Third Quartile = 103% Number of Observations = 78 Water Year = 2019 First Quartile = 93% Median = 97% Third Quartile = 103% Number of Observations = 78 Water Year = 2019 First Quartile = 93% Median = 97% Third Quartile = 103% Number of Observations = 78 Water Year = 2017 First Quartile = 100% Median = 103% Third Quartile = 107% Number of Observations = 90 Water Year = 2017 First Quartile = 100% Median = 103% Third Quartile = 107% Number of Observations = 90 Water Year = 2017 First Quartile = 100% Median = 103% Third Quartile = 107% Number of Observations = 90 Water Year = 2017 First Quartile = 100% Median = 103% Third Quartile = 107% Number of Observations = 90 Water Year = 2017 First Quartile = 100% Median = 103% Third Quartile = 107% Number of Observations = 90 Water Year = 2017 First Quartile = 100% Median = 103% Third Quartile = 107% Number of Observations = 90 Water Year = 2017 First Quartile = 100% Median = 103% Third Quartile = 107% Number of Observations = 90 Water Year = 2017 First Quartile = 100% Median = 103% Third Quartile = 107% Number of Observations = 90 Water Year = 2016 First Quartile = 96% Median = 98% Third Quartile = 101% Number of Observations = 90 Water Year = 2016 First Quartile = 96% Median = 98% Third Quartile = 101% Number of Observations = 90 Water Year = 2016 First Quartile = 96% Median = 98% Third Quartile = 101% Number of Observations = 90 Water Year = 2016 First Quartile = 96% Median = 98% Third Quartile = 101% Number of Observations = 90 Water Year = 2016 First Quartile = 96% Median = 98% Third Quartile = 101% Number of Observations = 90 Water Year = 2016 First Quartile = 96% Median = 98% Third Quartile = 101% Number of Observations = 90 Water Year = 2016 First Quartile = 96% Median = 98% Third Quartile = 101% Number of Observations = 90 Water Year = 2016 First Quartile = 96% Median = 98% Third Quartile = 101% Number of Observations = 90 Water Year = 2015 First Quartile = 98% Median = 101% Third Quartile = 103% Number of Observations = 90 Water Year = 2015 First Quartile = 98% Median = 101% Third Quartile = 103% Number of Observations = 90 Water Year = 2015 First Quartile = 98% Median = 101% Third Quartile = 103% Number of Observations = 90 Water Year = 2015 First Quartile = 98% Median = 101% Third Quartile = 103% Number of Observations = 90 Water Year = 2015 First Quartile = 98% Median = 101% Third Quartile = 103% Number of Observations = 90 Water Year = 2015 First Quartile = 98% Median = 101% Third Quartile = 103% Number of Observations = 90 Water Year = 2015 First Quartile = 98% Median = 101% Third Quartile = 103% Number of Observations = 90 Water Year = 2015 First Quartile = 98% Median = 101% Third Quartile = 103% Number of Observations = 90 Water Year = 2014 First Quartile = 95% Median = 97% Third Quartile = 99% Number of Observations = 83 Water Year = 2014 First Quartile = 95% Median = 97% Third Quartile = 99% Number of Observations = 83 Water Year = 2014 First Quartile = 95% Median = 97% Third Quartile = 99% Number of Observations = 83 Water Year = 2014 First Quartile = 95% Median = 97% Third Quartile = 99% Number of Observations = 83 Water Year = 2014 First Quartile = 95% Median = 97% Third Quartile = 99% Number of Observations = 83 Water Year = 2014 First Quartile = 95% Median = 97% Third Quartile = 99% Number of Observations = 83 Water Year = 2014 First Quartile = 95% Median = 97% Third Quartile = 99% Number of Observations = 83 Water Year = 2014 First Quartile = 95% Median = 97% Third Quartile = 99% Number of Observations = 83 Water Year = 2013 First Quartile = 98% Median = 102% Third Quartile = 105% Number of Observations = 108 Water Year = 2013 First Quartile = 98% Median = 102% Third Quartile = 105% Number of Observations = 108 Water Year = 2013 First Quartile = 98% Median = 102% Third Quartile = 105% Number of Observations = 108 Water Year = 2013 First Quartile = 98% Median = 102% Third Quartile = 105% Number of Observations = 108 Water Year = 2013 First Quartile = 98% Median = 102% Third Quartile = 105% Number of Observations = 108 Water Year = 2013 First Quartile = 98% Median = 102% Third Quartile = 105% Number of Observations = 108 Water Year = 2013 First Quartile = 98% Median = 102% Third Quartile = 105% Number of Observations = 108 Water Year = 2013 First Quartile = 98% Median = 102% Third Quartile = 105% Number of Observations = 108 Water Year = 2012 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 132 Water Year = 2012 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 132 Water Year = 2012 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 132 Water Year = 2012 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 132 Water Year = 2012 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 132 Water Year = 2012 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 132 Water Year = 2012 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 132 Water Year = 2012 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 132 Water Year = 2011 First Quartile = 92% Median = 95% Third Quartile = 99% Number of Observations = 131 Water Year = 2011 First Quartile = 92% Median = 95% Third Quartile = 99% Number of Observations = 131 Water Year = 2011 First Quartile = 92% Median = 95% Third Quartile = 99% Number of Observations = 131 Water Year = 2011 First Quartile = 92% Median = 95% Third Quartile = 99% Number of Observations = 131 Water Year = 2011 First Quartile = 92% Median = 95% Third Quartile = 99% Number of Observations = 131 Water Year = 2011 First Quartile = 92% Median = 95% Third Quartile = 99% Number of Observations = 131 Water Year = 2011 First Quartile = 92% Median = 95% Third Quartile = 99% Number of Observations = 131 Water Year = 2011 First Quartile = 92% Median = 95% Third Quartile = 99% Number of Observations = 131 Water Year = 2010 First Quartile = 98% Median = 100% Third Quartile = 104% Number of Observations = 132 Water Year = 2010 First Quartile = 98% Median = 100% Third Quartile = 104% Number of Observations = 132 Water Year = 2010 First Quartile = 98% Median = 100% Third Quartile = 104% Number of Observations = 132 Water Year = 2010 First Quartile = 98% Median = 100% Third Quartile = 104% Number of Observations = 132 Water Year = 2010 First Quartile = 98% Median = 100% Third Quartile = 104% Number of Observations = 132 Water Year = 2010 First Quartile = 98% Median = 100% Third Quartile = 104% Number of Observations = 132 Water Year = 2010 First Quartile = 98% Median = 100% Third Quartile = 104% Number of Observations = 132 Water Year = 2010 First Quartile = 98% Median = 100% Third Quartile = 104% Number of Observations = 132 Y = 1
The SGPlot Procedure

Percent Recovery Statistics for Uranium, fltd, ICP-MS

Analyte Parm-meth Code Water Year # of
Samples		 25th Pctl 50th Pctl
(Median)		 75th Pctl
Uranium, fltd, ICP-MS 22703PLM43 2010 132 97.7% 100.4% 104.1%
    2011 131 91.6% 94.7% 98.6%
    2012 132 99.2% 101.5% 103.5%
    2013 108 98.3% 102.3% 104.6%
    2014 83 95.0% 97.1% 99.0%
    2015 90 97.9% 100.7% 103.2%
    2016 90 95.8% 98.0% 100.6%
    2017 90 99.9% 102.9% 106.5%
    2019 78 92.6% 96.7% 103.1%
    2020 86 97.4% 101.9% 105.3%
    2021 90 102.1% 106.3% 110.5%
    2022 89 100.4% 104.8% 109.1%
    2023 89 100.4% 104.6% 107.8%
    2024 73 100.4% 102.4% 105.3%

Hover over boxplot or outliers for additional information
Chart generated 03/27/2025
Charts and data secured from this U.S. Geological Survey (USGS) web page (identified as IBSP) have not received official USGS approval and as such are provisional and subject to revision. The charts and data are released on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use.


- Uranium, unfltd, ICP-MS, recov -
Lab: NWQL, PCode: 28011, MCode: PLM48
Analysis Dates: 10/06/09 through 04/22/15
Open Data Set
Boxplot Description

Water Year = 2015 plotvalue = 111% pctrecov = 111% Water Year = 2014 plotvalue = 93% pctrecov = 93% Water Year = 2014 plotvalue = 92% pctrecov = 92% Water Year = 2014 plotvalue = 92% pctrecov = 92% Water Year = 2014 plotvalue = 72% pctrecov = 72% Water Year = 2013 plotvalue = 106% pctrecov = 106% Water Year = 2013 plotvalue = 107% pctrecov = 107% Water Year = 2013 plotvalue = 110% pctrecov = 110% Water Year = 2013 plotvalue = 92% pctrecov = 92% Water Year = 2011 plotvalue = 113% pctrecov = 113% Water Year = 2011 plotvalue = 115% pctrecov = 115% Water Year = 2011 plotvalue = 87% pctrecov = 87% Water Year = 2011 plotvalue = 86% pctrecov = 86% Water Year = 2010 plotvalue = 110% pctrecov = 110% Water Year = 2010 plotvalue = 112% pctrecov = 112% Water Year = 2010 plotvalue = 115% pctrecov = 115% Water Year = 2010 plotvalue = 95% pctrecov = 95% Water Year = 2010 plotvalue = 93% pctrecov = 93% Water Year = 2015 First Quartile = 100% Median = 101% Third Quartile = 104% Number of Observations = 26 Water Year = 2015 First Quartile = 100% Median = 101% Third Quartile = 104% Number of Observations = 26 Water Year = 2015 First Quartile = 100% Median = 101% Third Quartile = 104% Number of Observations = 26 Water Year = 2015 First Quartile = 100% Median = 101% Third Quartile = 104% Number of Observations = 26 Water Year = 2015 First Quartile = 100% Median = 101% Third Quartile = 104% Number of Observations = 26 Water Year = 2015 First Quartile = 100% Median = 101% Third Quartile = 104% Number of Observations = 26 Water Year = 2015 First Quartile = 100% Median = 101% Third Quartile = 104% Number of Observations = 26 Water Year = 2015 First Quartile = 100% Median = 101% Third Quartile = 104% Number of Observations = 26 Water Year = 2014 First Quartile = 98% Median = 100% Third Quartile = 101% Number of Observations = 45 Water Year = 2014 First Quartile = 98% Median = 100% Third Quartile = 101% Number of Observations = 45 Water Year = 2014 First Quartile = 98% Median = 100% Third Quartile = 101% Number of Observations = 45 Water Year = 2014 First Quartile = 98% Median = 100% Third Quartile = 101% Number of Observations = 45 Water Year = 2014 First Quartile = 98% Median = 100% Third Quartile = 101% Number of Observations = 45 Water Year = 2014 First Quartile = 98% Median = 100% Third Quartile = 101% Number of Observations = 45 Water Year = 2014 First Quartile = 98% Median = 100% Third Quartile = 101% Number of Observations = 45 Water Year = 2014 First Quartile = 98% Median = 100% Third Quartile = 101% Number of Observations = 45 Water Year = 2013 First Quartile = 98% Median = 99% Third Quartile = 101% Number of Observations = 48 Water Year = 2013 First Quartile = 98% Median = 99% Third Quartile = 101% Number of Observations = 48 Water Year = 2013 First Quartile = 98% Median = 99% Third Quartile = 101% Number of Observations = 48 Water Year = 2013 First Quartile = 98% Median = 99% Third Quartile = 101% Number of Observations = 48 Water Year = 2013 First Quartile = 98% Median = 99% Third Quartile = 101% Number of Observations = 48 Water Year = 2013 First Quartile = 98% Median = 99% Third Quartile = 101% Number of Observations = 48 Water Year = 2013 First Quartile = 98% Median = 99% Third Quartile = 101% Number of Observations = 48 Water Year = 2013 First Quartile = 98% Median = 99% Third Quartile = 101% Number of Observations = 48 Water Year = 2011 First Quartile = 98% Median = 101% Third Quartile = 103% Number of Observations = 48 Water Year = 2011 First Quartile = 98% Median = 101% Third Quartile = 103% Number of Observations = 48 Water Year = 2011 First Quartile = 98% Median = 101% Third Quartile = 103% Number of Observations = 48 Water Year = 2011 First Quartile = 98% Median = 101% Third Quartile = 103% Number of Observations = 48 Water Year = 2011 First Quartile = 98% Median = 101% Third Quartile = 103% Number of Observations = 48 Water Year = 2011 First Quartile = 98% Median = 101% Third Quartile = 103% Number of Observations = 48 Water Year = 2011 First Quartile = 98% Median = 101% Third Quartile = 103% Number of Observations = 48 Water Year = 2011 First Quartile = 98% Median = 101% Third Quartile = 103% Number of Observations = 48 Water Year = 2010 First Quartile = 101% Median = 102% Third Quartile = 104% Number of Observations = 48 Water Year = 2010 First Quartile = 101% Median = 102% Third Quartile = 104% Number of Observations = 48 Water Year = 2010 First Quartile = 101% Median = 102% Third Quartile = 104% Number of Observations = 48 Water Year = 2010 First Quartile = 101% Median = 102% Third Quartile = 104% Number of Observations = 48 Water Year = 2010 First Quartile = 101% Median = 102% Third Quartile = 104% Number of Observations = 48 Water Year = 2010 First Quartile = 101% Median = 102% Third Quartile = 104% Number of Observations = 48 Water Year = 2010 First Quartile = 101% Median = 102% Third Quartile = 104% Number of Observations = 48 Water Year = 2010 First Quartile = 101% Median = 102% Third Quartile = 104% Number of Observations = 48 Water Year = 2009 First Quartile = 106% Median = 108% Third Quartile = 110% Number of Observations = 4 Water Year = 2009 First Quartile = 106% Median = 108% Third Quartile = 110% Number of Observations = 4 Water Year = 2009 First Quartile = 106% Median = 108% Third Quartile = 110% Number of Observations = 4 Water Year = 2009 First Quartile = 106% Median = 108% Third Quartile = 110% Number of Observations = 4 Water Year = 2009 First Quartile = 106% Median = 108% Third Quartile = 110% Number of Observations = 4 Water Year = 2009 First Quartile = 106% Median = 108% Third Quartile = 110% Number of Observations = 4 Water Year = 2009 First Quartile = 106% Median = 108% Third Quartile = 110% Number of Observations = 4 Water Year = 2009 First Quartile = 106% Median = 108% Third Quartile = 110% Number of Observations = 4 Y = 1
The SGPlot Procedure

Percent Recovery Statistics for Uranium, unfltd, ICP-MS, recov

Analyte Parm-meth Code Water Year # of
Samples		 25th Pctl 50th Pctl
(Median)		 75th Pctl
Uranium, unfltd, ICP-MS, recov 28011PLM48 2009 4 105.6% 108.0% 110.2%
    2010 48 100.6% 102.3% 104.1%
    2011 48 98.0% 101.4% 102.9%
    2013 48 97.9% 99.0% 100.6%
    2014 45 98.3% 99.6% 100.9%
    2015 26 99.7% 101.3% 104.2%

Hover over boxplot or outliers for additional information
Chart generated 03/27/2025
Charts and data secured from this U.S. Geological Survey (USGS) web page (identified as IBSP) have not received official USGS approval and as such are provisional and subject to revision. The charts and data are released on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use.


- Uranium, unfltd, ICP-MS, recov -
Lab: NWQL, PCode: 28011, MCode: PLM78
Analysis Dates: 05/12/15 through 09/25/24
Open Data Set
Boxplot Description

Water Year = 2022 plotvalue = 124% pctrecov = 124% Water Year = 2022 plotvalue = 130% pctrecov = 134% Water Year = 2022 plotvalue = 130% pctrecov = 134% Water Year = 2020 plotvalue = 125% pctrecov = 125% Water Year = 2017 plotvalue = 106% pctrecov = 106% Water Year = 2024 First Quartile = 99% Median = 105% Third Quartile = 107% Number of Observations = 41 Water Year = 2024 First Quartile = 99% Median = 105% Third Quartile = 107% Number of Observations = 41 Water Year = 2024 First Quartile = 99% Median = 105% Third Quartile = 107% Number of Observations = 41 Water Year = 2024 First Quartile = 99% Median = 105% Third Quartile = 107% Number of Observations = 41 Water Year = 2024 First Quartile = 99% Median = 105% Third Quartile = 107% Number of Observations = 41 Water Year = 2024 First Quartile = 99% Median = 105% Third Quartile = 107% Number of Observations = 41 Water Year = 2024 First Quartile = 99% Median = 105% Third Quartile = 107% Number of Observations = 41 Water Year = 2024 First Quartile = 99% Median = 105% Third Quartile = 107% Number of Observations = 41 Water Year = 2023 First Quartile = 98% Median = 101% Third Quartile = 104% Number of Observations = 48 Water Year = 2023 First Quartile = 98% Median = 101% Third Quartile = 104% Number of Observations = 48 Water Year = 2023 First Quartile = 98% Median = 101% Third Quartile = 104% Number of Observations = 48 Water Year = 2023 First Quartile = 98% Median = 101% Third Quartile = 104% Number of Observations = 48 Water Year = 2023 First Quartile = 98% Median = 101% Third Quartile = 104% Number of Observations = 48 Water Year = 2023 First Quartile = 98% Median = 101% Third Quartile = 104% Number of Observations = 48 Water Year = 2023 First Quartile = 98% Median = 101% Third Quartile = 104% Number of Observations = 48 Water Year = 2023 First Quartile = 98% Median = 101% Third Quartile = 104% Number of Observations = 48 Water Year = 2022 First Quartile = 99% Median = 102% Third Quartile = 107% Number of Observations = 47 Water Year = 2022 First Quartile = 99% Median = 102% Third Quartile = 107% Number of Observations = 47 Water Year = 2022 First Quartile = 99% Median = 102% Third Quartile = 107% Number of Observations = 47 Water Year = 2022 First Quartile = 99% Median = 102% Third Quartile = 107% Number of Observations = 47 Water Year = 2022 First Quartile = 99% Median = 102% Third Quartile = 107% Number of Observations = 47 Water Year = 2022 First Quartile = 99% Median = 102% Third Quartile = 107% Number of Observations = 47 Water Year = 2022 First Quartile = 99% Median = 102% Third Quartile = 107% Number of Observations = 47 Water Year = 2022 First Quartile = 99% Median = 102% Third Quartile = 107% Number of Observations = 47 Water Year = 2021 First Quartile = 97% Median = 103% Third Quartile = 107% Number of Observations = 48 Water Year = 2021 First Quartile = 97% Median = 103% Third Quartile = 107% Number of Observations = 48 Water Year = 2021 First Quartile = 97% Median = 103% Third Quartile = 107% Number of Observations = 48 Water Year = 2021 First Quartile = 97% Median = 103% Third Quartile = 107% Number of Observations = 48 Water Year = 2021 First Quartile = 97% Median = 103% Third Quartile = 107% Number of Observations = 48 Water Year = 2021 First Quartile = 97% Median = 103% Third Quartile = 107% Number of Observations = 48 Water Year = 2021 First Quartile = 97% Median = 103% Third Quartile = 107% Number of Observations = 48 Water Year = 2021 First Quartile = 97% Median = 103% Third Quartile = 107% Number of Observations = 48 Water Year = 2020 First Quartile = 102% Median = 104% Third Quartile = 108% Number of Observations = 44 Water Year = 2020 First Quartile = 102% Median = 104% Third Quartile = 108% Number of Observations = 44 Water Year = 2020 First Quartile = 102% Median = 104% Third Quartile = 108% Number of Observations = 44 Water Year = 2020 First Quartile = 102% Median = 104% Third Quartile = 108% Number of Observations = 44 Water Year = 2020 First Quartile = 102% Median = 104% Third Quartile = 108% Number of Observations = 44 Water Year = 2020 First Quartile = 102% Median = 104% Third Quartile = 108% Number of Observations = 44 Water Year = 2020 First Quartile = 102% Median = 104% Third Quartile = 108% Number of Observations = 44 Water Year = 2020 First Quartile = 102% Median = 104% Third Quartile = 108% Number of Observations = 44 Water Year = 2019 First Quartile = 98% Median = 102% Third Quartile = 108% Number of Observations = 40 Water Year = 2019 First Quartile = 98% Median = 102% Third Quartile = 108% Number of Observations = 40 Water Year = 2019 First Quartile = 98% Median = 102% Third Quartile = 108% Number of Observations = 40 Water Year = 2019 First Quartile = 98% Median = 102% Third Quartile = 108% Number of Observations = 40 Water Year = 2019 First Quartile = 98% Median = 102% Third Quartile = 108% Number of Observations = 40 Water Year = 2019 First Quartile = 98% Median = 102% Third Quartile = 108% Number of Observations = 40 Water Year = 2019 First Quartile = 98% Median = 102% Third Quartile = 108% Number of Observations = 40 Water Year = 2019 First Quartile = 98% Median = 102% Third Quartile = 108% Number of Observations = 40 Water Year = 2017 First Quartile = 95% Median = 97% Third Quartile = 99% Number of Observations = 48 Water Year = 2017 First Quartile = 95% Median = 97% Third Quartile = 99% Number of Observations = 48 Water Year = 2017 First Quartile = 95% Median = 97% Third Quartile = 99% Number of Observations = 48 Water Year = 2017 First Quartile = 95% Median = 97% Third Quartile = 99% Number of Observations = 48 Water Year = 2017 First Quartile = 95% Median = 97% Third Quartile = 99% Number of Observations = 48 Water Year = 2017 First Quartile = 95% Median = 97% Third Quartile = 99% Number of Observations = 48 Water Year = 2017 First Quartile = 95% Median = 97% Third Quartile = 99% Number of Observations = 48 Water Year = 2017 First Quartile = 95% Median = 97% Third Quartile = 99% Number of Observations = 48 Water Year = 2016 First Quartile = 100% Median = 102% Third Quartile = 106% Number of Observations = 48 Water Year = 2016 First Quartile = 100% Median = 102% Third Quartile = 106% Number of Observations = 48 Water Year = 2016 First Quartile = 100% Median = 102% Third Quartile = 106% Number of Observations = 48 Water Year = 2016 First Quartile = 100% Median = 102% Third Quartile = 106% Number of Observations = 48 Water Year = 2016 First Quartile = 100% Median = 102% Third Quartile = 106% Number of Observations = 48 Water Year = 2016 First Quartile = 100% Median = 102% Third Quartile = 106% Number of Observations = 48 Water Year = 2016 First Quartile = 100% Median = 102% Third Quartile = 106% Number of Observations = 48 Water Year = 2016 First Quartile = 100% Median = 102% Third Quartile = 106% Number of Observations = 48 Water Year = 2015 First Quartile = 104% Median = 107% Third Quartile = 109% Number of Observations = 22 Water Year = 2015 First Quartile = 104% Median = 107% Third Quartile = 109% Number of Observations = 22 Water Year = 2015 First Quartile = 104% Median = 107% Third Quartile = 109% Number of Observations = 22 Water Year = 2015 First Quartile = 104% Median = 107% Third Quartile = 109% Number of Observations = 22 Water Year = 2015 First Quartile = 104% Median = 107% Third Quartile = 109% Number of Observations = 22 Water Year = 2015 First Quartile = 104% Median = 107% Third Quartile = 109% Number of Observations = 22 Water Year = 2015 First Quartile = 104% Median = 107% Third Quartile = 109% Number of Observations = 22 Water Year = 2015 First Quartile = 104% Median = 107% Third Quartile = 109% Number of Observations = 22 Y = 1
The SGPlot Procedure

Percent Recovery Statistics for Uranium, unfltd, ICP-MS, recov

Analyte Parm-meth Code Water Year # of
Samples		 25th Pctl 50th Pctl
(Median)		 75th Pctl
Uranium, unfltd, ICP-MS, recov 28011PLM78 2015 22 104.0% 107.1% 109.1%
    2016 48 99.6% 101.8% 106.1%
    2017 48 95.3% 97.4% 99.1%
    2019 40 97.8% 102.0% 107.8%
    2020 44 101.8% 104.4% 108.4%
    2021 48 96.5% 102.6% 106.5%
    2022 47 98.5% 101.6% 107.3%
    2023 48 97.9% 100.7% 103.9%
    2024 41 99.0% 104.6% 107.3%

Hover over boxplot or outliers for additional information
Chart generated 03/27/2025
Charts and data secured from this U.S. Geological Survey (USGS) web page (identified as IBSP) have not received official USGS approval and as such are provisional and subject to revision. The charts and data are released on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use.


- Vanadium, fltd, cICP-MS -
Lab: NWQL, PCode: 01085, MCode: PLM10
Analysis Dates: 10/09/09 through 09/28/24
Open Data Set
Boxplot Description

Water Year = 2023 plotvalue = 117% pctrecov = 117% Water Year = 2022 plotvalue = 119% pctrecov = 119% Water Year = 2022 plotvalue = 120% pctrecov = 120% Water Year = 2022 plotvalue = 120% pctrecov = 120% Water Year = 2022 plotvalue = 120% pctrecov = 120% Water Year = 2021 plotvalue = 121% pctrecov = 121% Water Year = 2021 plotvalue = 91% pctrecov = 91% Water Year = 2019 plotvalue = 118% pctrecov = 118% Water Year = 2019 plotvalue = 130% pctrecov = 162% Water Year = 2019 plotvalue = 70% pctrecov = 27% Water Year = 2017 plotvalue = 122% pctrecov = 122% Water Year = 2017 plotvalue = 90% pctrecov = 90% Water Year = 2016 plotvalue = 70% pctrecov = 5% Water Year = 2013 plotvalue = 116% pctrecov = 116% Water Year = 2013 plotvalue = 116% pctrecov = 116% Water Year = 2013 plotvalue = 70% pctrecov = 36% Water Year = 2012 plotvalue = 109% pctrecov = 109% Water Year = 2012 plotvalue = 109% pctrecov = 109% Water Year = 2012 plotvalue = 110% pctrecov = 110% Water Year = 2012 plotvalue = 111% pctrecov = 111% Water Year = 2012 plotvalue = 111% pctrecov = 111% Water Year = 2012 plotvalue = 112% pctrecov = 112% Water Year = 2012 plotvalue = 84% pctrecov = 84% Water Year = 2012 plotvalue = 78% pctrecov = 78% Water Year = 2012 plotvalue = 70% pctrecov = 6% Water Year = 2011 plotvalue = 107% pctrecov = 107% Water Year = 2011 plotvalue = 109% pctrecov = 109% Water Year = 2011 plotvalue = 130% pctrecov = 1564% Water Year = 2010 plotvalue = 84% pctrecov = 84% Water Year = 2024 First Quartile = 100% Median = 106% Third Quartile = 111% Number of Observations = 73 Water Year = 2024 First Quartile = 100% Median = 106% Third Quartile = 111% Number of Observations = 73 Water Year = 2024 First Quartile = 100% Median = 106% Third Quartile = 111% Number of Observations = 73 Water Year = 2024 First Quartile = 100% Median = 106% Third Quartile = 111% Number of Observations = 73 Water Year = 2024 First Quartile = 100% Median = 106% Third Quartile = 111% Number of Observations = 73 Water Year = 2024 First Quartile = 100% Median = 106% Third Quartile = 111% Number of Observations = 73 Water Year = 2024 First Quartile = 100% Median = 106% Third Quartile = 111% Number of Observations = 73 Water Year = 2024 First Quartile = 100% Median = 106% Third Quartile = 111% Number of Observations = 73 Water Year = 2023 First Quartile = 97% Median = 101% Third Quartile = 105% Number of Observations = 89 Water Year = 2023 First Quartile = 97% Median = 101% Third Quartile = 105% Number of Observations = 89 Water Year = 2023 First Quartile = 97% Median = 101% Third Quartile = 105% Number of Observations = 89 Water Year = 2023 First Quartile = 97% Median = 101% Third Quartile = 105% Number of Observations = 89 Water Year = 2023 First Quartile = 97% Median = 101% Third Quartile = 105% Number of Observations = 89 Water Year = 2023 First Quartile = 97% Median = 101% Third Quartile = 105% Number of Observations = 89 Water Year = 2023 First Quartile = 97% Median = 101% Third Quartile = 105% Number of Observations = 89 Water Year = 2023 First Quartile = 97% Median = 101% Third Quartile = 105% Number of Observations = 89 Water Year = 2022 First Quartile = 99% Median = 102% Third Quartile = 107% Number of Observations = 89 Water Year = 2022 First Quartile = 99% Median = 102% Third Quartile = 107% Number of Observations = 89 Water Year = 2022 First Quartile = 99% Median = 102% Third Quartile = 107% Number of Observations = 89 Water Year = 2022 First Quartile = 99% Median = 102% Third Quartile = 107% Number of Observations = 89 Water Year = 2022 First Quartile = 99% Median = 102% Third Quartile = 107% Number of Observations = 89 Water Year = 2022 First Quartile = 99% Median = 102% Third Quartile = 107% Number of Observations = 89 Water Year = 2022 First Quartile = 99% Median = 102% Third Quartile = 107% Number of Observations = 89 Water Year = 2022 First Quartile = 99% Median = 102% Third Quartile = 107% Number of Observations = 89 Water Year = 2021 First Quartile = 103% Median = 106% Third Quartile = 110% Number of Observations = 90 Water Year = 2021 First Quartile = 103% Median = 106% Third Quartile = 110% Number of Observations = 90 Water Year = 2021 First Quartile = 103% Median = 106% Third Quartile = 110% Number of Observations = 90 Water Year = 2021 First Quartile = 103% Median = 106% Third Quartile = 110% Number of Observations = 90 Water Year = 2021 First Quartile = 103% Median = 106% Third Quartile = 110% Number of Observations = 90 Water Year = 2021 First Quartile = 103% Median = 106% Third Quartile = 110% Number of Observations = 90 Water Year = 2021 First Quartile = 103% Median = 106% Third Quartile = 110% Number of Observations = 90 Water Year = 2021 First Quartile = 103% Median = 106% Third Quartile = 110% Number of Observations = 90 Water Year = 2020 First Quartile = 102% Median = 107% Third Quartile = 109% Number of Observations = 86 Water Year = 2020 First Quartile = 102% Median = 107% Third Quartile = 109% Number of Observations = 86 Water Year = 2020 First Quartile = 102% Median = 107% Third Quartile = 109% Number of Observations = 86 Water Year = 2020 First Quartile = 102% Median = 107% Third Quartile = 109% Number of Observations = 86 Water Year = 2020 First Quartile = 102% Median = 107% Third Quartile = 109% Number of Observations = 86 Water Year = 2020 First Quartile = 102% Median = 107% Third Quartile = 109% Number of Observations = 86 Water Year = 2020 First Quartile = 102% Median = 107% Third Quartile = 109% Number of Observations = 86 Water Year = 2020 First Quartile = 102% Median = 107% Third Quartile = 109% Number of Observations = 86 Water Year = 2019 First Quartile = 100% Median = 103% Third Quartile = 106% Number of Observations = 78 Water Year = 2019 First Quartile = 100% Median = 103% Third Quartile = 106% Number of Observations = 78 Water Year = 2019 First Quartile = 100% Median = 103% Third Quartile = 106% Number of Observations = 78 Water Year = 2019 First Quartile = 100% Median = 103% Third Quartile = 106% Number of Observations = 78 Water Year = 2019 First Quartile = 100% Median = 103% Third Quartile = 106% Number of Observations = 78 Water Year = 2019 First Quartile = 100% Median = 103% Third Quartile = 106% Number of Observations = 78 Water Year = 2019 First Quartile = 100% Median = 103% Third Quartile = 106% Number of Observations = 78 Water Year = 2019 First Quartile = 100% Median = 103% Third Quartile = 106% Number of Observations = 78 Water Year = 2017 First Quartile = 103% Median = 106% Third Quartile = 110% Number of Observations = 90 Water Year = 2017 First Quartile = 103% Median = 106% Third Quartile = 110% Number of Observations = 90 Water Year = 2017 First Quartile = 103% Median = 106% Third Quartile = 110% Number of Observations = 90 Water Year = 2017 First Quartile = 103% Median = 106% Third Quartile = 110% Number of Observations = 90 Water Year = 2017 First Quartile = 103% Median = 106% Third Quartile = 110% Number of Observations = 90 Water Year = 2017 First Quartile = 103% Median = 106% Third Quartile = 110% Number of Observations = 90 Water Year = 2017 First Quartile = 103% Median = 106% Third Quartile = 110% Number of Observations = 90 Water Year = 2017 First Quartile = 103% Median = 106% Third Quartile = 110% Number of Observations = 90 Water Year = 2016 First Quartile = 103% Median = 106% Third Quartile = 120% Number of Observations = 90 Water Year = 2016 First Quartile = 103% Median = 106% Third Quartile = 120% Number of Observations = 90 Water Year = 2016 First Quartile = 103% Median = 106% Third Quartile = 120% Number of Observations = 90 Water Year = 2016 First Quartile = 103% Median = 106% Third Quartile = 120% Number of Observations = 90 Water Year = 2016 First Quartile = 103% Median = 106% Third Quartile = 120% Number of Observations = 90 Water Year = 2016 First Quartile = 103% Median = 106% Third Quartile = 120% Number of Observations = 90 Water Year = 2016 First Quartile = 103% Median = 106% Third Quartile = 120% Number of Observations = 90 Water Year = 2016 First Quartile = 103% Median = 106% Third Quartile = 120% Number of Observations = 90 Water Year = 2015 First Quartile = 105% Median = 109% Third Quartile = 116% Number of Observations = 90 Water Year = 2015 First Quartile = 105% Median = 109% Third Quartile = 116% Number of Observations = 90 Water Year = 2015 First Quartile = 105% Median = 109% Third Quartile = 116% Number of Observations = 90 Water Year = 2015 First Quartile = 105% Median = 109% Third Quartile = 116% Number of Observations = 90 Water Year = 2015 First Quartile = 105% Median = 109% Third Quartile = 116% Number of Observations = 90 Water Year = 2015 First Quartile = 105% Median = 109% Third Quartile = 116% Number of Observations = 90 Water Year = 2015 First Quartile = 105% Median = 109% Third Quartile = 116% Number of Observations = 90 Water Year = 2015 First Quartile = 105% Median = 109% Third Quartile = 116% Number of Observations = 90 Water Year = 2014 First Quartile = 105% Median = 111% Third Quartile = 128% Number of Observations = 83 Water Year = 2014 First Quartile = 105% Median = 111% Third Quartile = 128% Number of Observations = 83 Water Year = 2014 First Quartile = 105% Median = 111% Third Quartile = 128% Number of Observations = 83 Water Year = 2014 First Quartile = 105% Median = 111% Third Quartile = 128% Number of Observations = 83 Water Year = 2014 First Quartile = 105% Median = 111% Third Quartile = 128% Number of Observations = 83 Water Year = 2014 First Quartile = 105% Median = 111% Third Quartile = 128% Number of Observations = 83 Water Year = 2014 First Quartile = 105% Median = 111% Third Quartile = 128% Number of Observations = 83 Water Year = 2014 First Quartile = 105% Median = 111% Third Quartile = 128% Number of Observations = 83 Water Year = 2013 First Quartile = 99% Median = 102% Third Quartile = 105% Number of Observations = 108 Water Year = 2013 First Quartile = 99% Median = 102% Third Quartile = 105% Number of Observations = 108 Water Year = 2013 First Quartile = 99% Median = 102% Third Quartile = 105% Number of Observations = 108 Water Year = 2013 First Quartile = 99% Median = 102% Third Quartile = 105% Number of Observations = 108 Water Year = 2013 First Quartile = 99% Median = 102% Third Quartile = 105% Number of Observations = 108 Water Year = 2013 First Quartile = 99% Median = 102% Third Quartile = 105% Number of Observations = 108 Water Year = 2013 First Quartile = 99% Median = 102% Third Quartile = 105% Number of Observations = 108 Water Year = 2013 First Quartile = 99% Median = 102% Third Quartile = 105% Number of Observations = 108 Water Year = 2012 First Quartile = 95% Median = 98% Third Quartile = 100% Number of Observations = 132 Water Year = 2012 First Quartile = 95% Median = 98% Third Quartile = 100% Number of Observations = 132 Water Year = 2012 First Quartile = 95% Median = 98% Third Quartile = 100% Number of Observations = 132 Water Year = 2012 First Quartile = 95% Median = 98% Third Quartile = 100% Number of Observations = 132 Water Year = 2012 First Quartile = 95% Median = 98% Third Quartile = 100% Number of Observations = 132 Water Year = 2012 First Quartile = 95% Median = 98% Third Quartile = 100% Number of Observations = 132 Water Year = 2012 First Quartile = 95% Median = 98% Third Quartile = 100% Number of Observations = 132 Water Year = 2012 First Quartile = 95% Median = 98% Third Quartile = 100% Number of Observations = 132 Water Year = 2011 First Quartile = 92% Median = 95% Third Quartile = 98% Number of Observations = 131 Water Year = 2011 First Quartile = 92% Median = 95% Third Quartile = 98% Number of Observations = 131 Water Year = 2011 First Quartile = 92% Median = 95% Third Quartile = 98% Number of Observations = 131 Water Year = 2011 First Quartile = 92% Median = 95% Third Quartile = 98% Number of Observations = 131 Water Year = 2011 First Quartile = 92% Median = 95% Third Quartile = 98% Number of Observations = 131 Water Year = 2011 First Quartile = 92% Median = 95% Third Quartile = 98% Number of Observations = 131 Water Year = 2011 First Quartile = 92% Median = 95% Third Quartile = 98% Number of Observations = 131 Water Year = 2011 First Quartile = 92% Median = 95% Third Quartile = 98% Number of Observations = 131 Water Year = 2010 First Quartile = 104% Median = 109% Third Quartile = 117% Number of Observations = 132 Water Year = 2010 First Quartile = 104% Median = 109% Third Quartile = 117% Number of Observations = 132 Water Year = 2010 First Quartile = 104% Median = 109% Third Quartile = 117% Number of Observations = 132 Water Year = 2010 First Quartile = 104% Median = 109% Third Quartile = 117% Number of Observations = 132 Water Year = 2010 First Quartile = 104% Median = 109% Third Quartile = 117% Number of Observations = 132 Water Year = 2010 First Quartile = 104% Median = 109% Third Quartile = 117% Number of Observations = 132 Water Year = 2010 First Quartile = 104% Median = 109% Third Quartile = 117% Number of Observations = 132 Water Year = 2010 First Quartile = 104% Median = 109% Third Quartile = 117% Number of Observations = 132 Y = 1
The SGPlot Procedure

Percent Recovery Statistics for Vanadium, fltd, cICP-MS

Analyte Parm-meth Code Water Year # of
Samples		 25th Pctl 50th Pctl
(Median)		 75th Pctl
Vanadium, fltd, cICP-MS 01085PLM10 2010 132 104.0% 108.6% 117.2%
    2011 131 91.6% 95.1% 97.8%
    2012 132 94.7% 97.8% 100.3%
    2013 108 98.6% 102.4% 105.4%
    2014 83 104.6% 110.5% 127.7%
    2015 90 104.7% 108.9% 116.2%
    2016 90 102.8% 105.7% 120.0%
    2017 90 103.1% 106.4% 109.8%
    2019 78 99.9% 103.1% 106.2%
    2020 86 101.8% 106.5% 109.0%
    2021 90 102.5% 106.2% 109.7%
    2022 89 98.7% 102.0% 106.9%
    2023 89 97.2% 100.6% 105.1%
    2024 73 100.2% 106.4% 110.6%

Hover over boxplot or outliers for additional information
Chart generated 03/27/2025
Charts and data secured from this U.S. Geological Survey (USGS) web page (identified as IBSP) have not received official USGS approval and as such are provisional and subject to revision. The charts and data are released on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use.


- Vanadium, unfltd, cICP-MS, recov -
Lab: NWQL, PCode: 01087, MCode: PLM11
Analysis Dates: 10/24/12 through 11/26/13
Open Data Set
Boxplot Description

Water Year = 2013 First Quartile = 101% Median = 102% Third Quartile = 105% Number of Observations = 24 Water Year = 2013 First Quartile = 101% Median = 102% Third Quartile = 105% Number of Observations = 24 Water Year = 2013 First Quartile = 101% Median = 102% Third Quartile = 105% Number of Observations = 24 Water Year = 2013 First Quartile = 101% Median = 102% Third Quartile = 105% Number of Observations = 24 Water Year = 2013 First Quartile = 101% Median = 102% Third Quartile = 105% Number of Observations = 24 Water Year = 2013 First Quartile = 101% Median = 102% Third Quartile = 105% Number of Observations = 24 Water Year = 2013 First Quartile = 101% Median = 102% Third Quartile = 105% Number of Observations = 24 Water Year = 2013 First Quartile = 101% Median = 102% Third Quartile = 105% Number of Observations = 24 Y = 1
The SGPlot Procedure

Percent Recovery Statistics for Vanadium, unfltd, cICP-MS, recov

Analyte Parm-meth Code Water Year # of
Samples		 25th Pctl 50th Pctl
(Median)		 75th Pctl
Vanadium, unfltd, cICP-MS, recov 01087PLM11 2013 24 100.9% 102.4% 105.0%

Hover over boxplot or outliers for additional information
Chart generated 03/27/2025
Charts and data secured from this U.S. Geological Survey (USGS) web page (identified as IBSP) have not received official USGS approval and as such are provisional and subject to revision. The charts and data are released on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use.


- Vanadium, unfltd, cICP-MS, recov -
Lab: NWQL, PCode: 01087, MCode: PLM77
Analysis Dates: 10/26/23 through 09/25/24
Open Data Set
Boxplot Description

Water Year = 2024 First Quartile = 94% Median = 98% Third Quartile = 105% Number of Observations = 40 Water Year = 2024 First Quartile = 94% Median = 98% Third Quartile = 105% Number of Observations = 40 Water Year = 2024 First Quartile = 94% Median = 98% Third Quartile = 105% Number of Observations = 40 Water Year = 2024 First Quartile = 94% Median = 98% Third Quartile = 105% Number of Observations = 40 Water Year = 2024 First Quartile = 94% Median = 98% Third Quartile = 105% Number of Observations = 40 Water Year = 2024 First Quartile = 94% Median = 98% Third Quartile = 105% Number of Observations = 40 Water Year = 2024 First Quartile = 94% Median = 98% Third Quartile = 105% Number of Observations = 40 Water Year = 2024 First Quartile = 94% Median = 98% Third Quartile = 105% Number of Observations = 40 Y = 1
The SGPlot Procedure

Percent Recovery Statistics for Vanadium, unfltd, cICP-MS, recov

Analyte Parm-meth Code Water Year # of
Samples		 25th Pctl 50th Pctl
(Median)		 75th Pctl
Vanadium, unfltd, cICP-MS, recov 01087PLM77 2024 40 93.8% 98.3% 105.2%

Hover over boxplot or outliers for additional information
Chart generated 03/27/2025
Charts and data secured from this U.S. Geological Survey (USGS) web page (identified as IBSP) have not received official USGS approval and as such are provisional and subject to revision. The charts and data are released on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use.


- Zinc, fltd, ICP-OES -
Lab: NWQL, PCode: 01090, MCode: PLA11
Analysis Dates: 11/02/12 through 09/18/24
Open Data Set
Boxplot Description

Water Year = 2024 plotvalue = 126% pctrecov = 126% Water Year = 2024 plotvalue = 126% pctrecov = 126% Water Year = 2022 plotvalue = 127% pctrecov = 127% Water Year = 2021 plotvalue = 113% pctrecov = 113% Water Year = 2021 plotvalue = 93% pctrecov = 93% Water Year = 2020 plotvalue = 114% pctrecov = 114% Water Year = 2020 plotvalue = 115% pctrecov = 115% Water Year = 2020 plotvalue = 117% pctrecov = 117% Water Year = 2019 plotvalue = 112% pctrecov = 112% Water Year = 2019 plotvalue = 113% pctrecov = 113% Water Year = 2019 plotvalue = 96% pctrecov = 96% Water Year = 2019 plotvalue = 96% pctrecov = 96% Water Year = 2017 plotvalue = 130% pctrecov = 262% Water Year = 2017 plotvalue = 91% pctrecov = 91% Water Year = 2017 plotvalue = 90% pctrecov = 90% Water Year = 2017 plotvalue = 90% pctrecov = 90% Water Year = 2016 plotvalue = 121% pctrecov = 121% Water Year = 2016 plotvalue = 82% pctrecov = 82% Water Year = 2016 plotvalue = 79% pctrecov = 79% Water Year = 2016 plotvalue = 78% pctrecov = 78% Water Year = 2016 plotvalue = 74% pctrecov = 74% Water Year = 2015 plotvalue = 84% pctrecov = 84% Water Year = 2014 plotvalue = 80% pctrecov = 80% Water Year = 2014 plotvalue = 70% pctrecov = 27% Water Year = 2014 plotvalue = 70% pctrecov = 70% Water Year = 2013 plotvalue = 75% pctrecov = 75% Water Year = 2013 plotvalue = 70% pctrecov = 22% Water Year = 2024 First Quartile = 102% Median = 105% Third Quartile = 108% Number of Observations = 21 Water Year = 2024 First Quartile = 102% Median = 105% Third Quartile = 108% Number of Observations = 21 Water Year = 2024 First Quartile = 102% Median = 105% Third Quartile = 108% Number of Observations = 21 Water Year = 2024 First Quartile = 102% Median = 105% Third Quartile = 108% Number of Observations = 21 Water Year = 2024 First Quartile = 102% Median = 105% Third Quartile = 108% Number of Observations = 21 Water Year = 2024 First Quartile = 102% Median = 105% Third Quartile = 108% Number of Observations = 21 Water Year = 2024 First Quartile = 102% Median = 105% Third Quartile = 108% Number of Observations = 21 Water Year = 2024 First Quartile = 102% Median = 105% Third Quartile = 108% Number of Observations = 21 Water Year = 2023 First Quartile = 101% Median = 104% Third Quartile = 110% Number of Observations = 24 Water Year = 2023 First Quartile = 101% Median = 104% Third Quartile = 110% Number of Observations = 24 Water Year = 2023 First Quartile = 101% Median = 104% Third Quartile = 110% Number of Observations = 24 Water Year = 2023 First Quartile = 101% Median = 104% Third Quartile = 110% Number of Observations = 24 Water Year = 2023 First Quartile = 101% Median = 104% Third Quartile = 110% Number of Observations = 24 Water Year = 2023 First Quartile = 101% Median = 104% Third Quartile = 110% Number of Observations = 24 Water Year = 2023 First Quartile = 101% Median = 104% Third Quartile = 110% Number of Observations = 24 Water Year = 2023 First Quartile = 101% Median = 104% Third Quartile = 110% Number of Observations = 24 Water Year = 2022 First Quartile = 102% Median = 103% Third Quartile = 108% Number of Observations = 24 Water Year = 2022 First Quartile = 102% Median = 103% Third Quartile = 108% Number of Observations = 24 Water Year = 2022 First Quartile = 102% Median = 103% Third Quartile = 108% Number of Observations = 24 Water Year = 2022 First Quartile = 102% Median = 103% Third Quartile = 108% Number of Observations = 24 Water Year = 2022 First Quartile = 102% Median = 103% Third Quartile = 108% Number of Observations = 24 Water Year = 2022 First Quartile = 102% Median = 103% Third Quartile = 108% Number of Observations = 24 Water Year = 2022 First Quartile = 102% Median = 103% Third Quartile = 108% Number of Observations = 24 Water Year = 2022 First Quartile = 102% Median = 103% Third Quartile = 108% Number of Observations = 24 Water Year = 2021 First Quartile = 101% Median = 102% Third Quartile = 105% Number of Observations = 24 Water Year = 2021 First Quartile = 101% Median = 102% Third Quartile = 105% Number of Observations = 24 Water Year = 2021 First Quartile = 101% Median = 102% Third Quartile = 105% Number of Observations = 24 Water Year = 2021 First Quartile = 101% Median = 102% Third Quartile = 105% Number of Observations = 24 Water Year = 2021 First Quartile = 101% Median = 102% Third Quartile = 105% Number of Observations = 24 Water Year = 2021 First Quartile = 101% Median = 102% Third Quartile = 105% Number of Observations = 24 Water Year = 2021 First Quartile = 101% Median = 102% Third Quartile = 105% Number of Observations = 24 Water Year = 2021 First Quartile = 101% Median = 102% Third Quartile = 105% Number of Observations = 24 Water Year = 2020 First Quartile = 101% Median = 102% Third Quartile = 105% Number of Observations = 24 Water Year = 2020 First Quartile = 101% Median = 102% Third Quartile = 105% Number of Observations = 24 Water Year = 2020 First Quartile = 101% Median = 102% Third Quartile = 105% Number of Observations = 24 Water Year = 2020 First Quartile = 101% Median = 102% Third Quartile = 105% Number of Observations = 24 Water Year = 2020 First Quartile = 101% Median = 102% Third Quartile = 105% Number of Observations = 24 Water Year = 2020 First Quartile = 101% Median = 102% Third Quartile = 105% Number of Observations = 24 Water Year = 2020 First Quartile = 101% Median = 102% Third Quartile = 105% Number of Observations = 24 Water Year = 2020 First Quartile = 101% Median = 102% Third Quartile = 105% Number of Observations = 24 Water Year = 2019 First Quartile = 102% Median = 103% Third Quartile = 105% Number of Observations = 20 Water Year = 2019 First Quartile = 102% Median = 103% Third Quartile = 105% Number of Observations = 20 Water Year = 2019 First Quartile = 102% Median = 103% Third Quartile = 105% Number of Observations = 20 Water Year = 2019 First Quartile = 102% Median = 103% Third Quartile = 105% Number of Observations = 20 Water Year = 2019 First Quartile = 102% Median = 103% Third Quartile = 105% Number of Observations = 20 Water Year = 2019 First Quartile = 102% Median = 103% Third Quartile = 105% Number of Observations = 20 Water Year = 2019 First Quartile = 102% Median = 103% Third Quartile = 105% Number of Observations = 20 Water Year = 2019 First Quartile = 102% Median = 103% Third Quartile = 105% Number of Observations = 20 Water Year = 2017 First Quartile = 102% Median = 103% Third Quartile = 104% Number of Observations = 24 Water Year = 2017 First Quartile = 102% Median = 103% Third Quartile = 104% Number of Observations = 24 Water Year = 2017 First Quartile = 102% Median = 103% Third Quartile = 104% Number of Observations = 24 Water Year = 2017 First Quartile = 102% Median = 103% Third Quartile = 104% Number of Observations = 24 Water Year = 2017 First Quartile = 102% Median = 103% Third Quartile = 104% Number of Observations = 24 Water Year = 2017 First Quartile = 102% Median = 103% Third Quartile = 104% Number of Observations = 24 Water Year = 2017 First Quartile = 102% Median = 103% Third Quartile = 104% Number of Observations = 24 Water Year = 2017 First Quartile = 102% Median = 103% Third Quartile = 104% Number of Observations = 24 Water Year = 2016 First Quartile = 94% Median = 98% Third Quartile = 102% Number of Observations = 41 Water Year = 2016 First Quartile = 94% Median = 98% Third Quartile = 102% Number of Observations = 41 Water Year = 2016 First Quartile = 94% Median = 98% Third Quartile = 102% Number of Observations = 41 Water Year = 2016 First Quartile = 94% Median = 98% Third Quartile = 102% Number of Observations = 41 Water Year = 2016 First Quartile = 94% Median = 98% Third Quartile = 102% Number of Observations = 41 Water Year = 2016 First Quartile = 94% Median = 98% Third Quartile = 102% Number of Observations = 41 Water Year = 2016 First Quartile = 94% Median = 98% Third Quartile = 102% Number of Observations = 41 Water Year = 2016 First Quartile = 94% Median = 98% Third Quartile = 102% Number of Observations = 41 Water Year = 2015 First Quartile = 93% Median = 97% Third Quartile = 100% Number of Observations = 42 Water Year = 2015 First Quartile = 93% Median = 97% Third Quartile = 100% Number of Observations = 42 Water Year = 2015 First Quartile = 93% Median = 97% Third Quartile = 100% Number of Observations = 42 Water Year = 2015 First Quartile = 93% Median = 97% Third Quartile = 100% Number of Observations = 42 Water Year = 2015 First Quartile = 93% Median = 97% Third Quartile = 100% Number of Observations = 42 Water Year = 2015 First Quartile = 93% Median = 97% Third Quartile = 100% Number of Observations = 42 Water Year = 2015 First Quartile = 93% Median = 97% Third Quartile = 100% Number of Observations = 42 Water Year = 2015 First Quartile = 93% Median = 97% Third Quartile = 100% Number of Observations = 42 Water Year = 2014 First Quartile = 95% Median = 101% Third Quartile = 105% Number of Observations = 46 Water Year = 2014 First Quartile = 95% Median = 101% Third Quartile = 105% Number of Observations = 46 Water Year = 2014 First Quartile = 95% Median = 101% Third Quartile = 105% Number of Observations = 46 Water Year = 2014 First Quartile = 95% Median = 101% Third Quartile = 105% Number of Observations = 46 Water Year = 2014 First Quartile = 95% Median = 101% Third Quartile = 105% Number of Observations = 46 Water Year = 2014 First Quartile = 95% Median = 101% Third Quartile = 105% Number of Observations = 46 Water Year = 2014 First Quartile = 95% Median = 101% Third Quartile = 105% Number of Observations = 46 Water Year = 2014 First Quartile = 95% Median = 101% Third Quartile = 105% Number of Observations = 46 Water Year = 2013 First Quartile = 96% Median = 101% Third Quartile = 106% Number of Observations = 42 Water Year = 2013 First Quartile = 96% Median = 101% Third Quartile = 106% Number of Observations = 42 Water Year = 2013 First Quartile = 96% Median = 101% Third Quartile = 106% Number of Observations = 42 Water Year = 2013 First Quartile = 96% Median = 101% Third Quartile = 106% Number of Observations = 42 Water Year = 2013 First Quartile = 96% Median = 101% Third Quartile = 106% Number of Observations = 42 Water Year = 2013 First Quartile = 96% Median = 101% Third Quartile = 106% Number of Observations = 42 Water Year = 2013 First Quartile = 96% Median = 101% Third Quartile = 106% Number of Observations = 42 Water Year = 2013 First Quartile = 96% Median = 101% Third Quartile = 106% Number of Observations = 42 Y = 1
The SGPlot Procedure

Percent Recovery Statistics for Zinc, fltd, ICP-OES

Analyte Parm-meth Code Water Year # of
Samples		 25th Pctl 50th Pctl
(Median)		 75th Pctl
Zinc, fltd, ICP-OES 01090PLA11 2013 42 96.4% 100.8% 106.2%
    2014 46 95.3% 101.3% 104.8%
    2015 42 93.4% 97.4% 99.7%
    2016 41 93.9% 97.7% 101.6%
    2017 24 101.7% 102.8% 104.1%
    2019 20 102.2% 103.4% 104.8%
    2020 24 100.8% 102.4% 104.7%
    2021 24 100.9% 101.8% 105.4%
    2022 24 102.1% 103.2% 108.4%
    2023 24 100.6% 103.6% 109.7%
    2024 21 102.0% 104.7% 108.3%

Hover over boxplot or outliers for additional information
Chart generated 03/27/2025
Charts and data secured from this U.S. Geological Survey (USGS) web page (identified as IBSP) have not received official USGS approval and as such are provisional and subject to revision. The charts and data are released on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use.


- Zinc, fltd, cICP-MS -
Lab: NWQL, PCode: 01090, MCode: PLM10
Analysis Dates: 10/09/09 through 09/24/24
Open Data Set
Boxplot Description

Water Year = 2024 plotvalue = 122% pctrecov = 122% Water Year = 2024 plotvalue = 124% pctrecov = 124% Water Year = 2024 plotvalue = 130% pctrecov = 141% Water Year = 2024 plotvalue = 130% pctrecov = 134% Water Year = 2024 plotvalue = 130% pctrecov = 147% Water Year = 2024 plotvalue = 130% pctrecov = 138% Water Year = 2024 plotvalue = 130% pctrecov = 146% Water Year = 2024 plotvalue = 93% pctrecov = 93% Water Year = 2023 plotvalue = 110% pctrecov = 110% Water Year = 2023 plotvalue = 111% pctrecov = 111% Water Year = 2023 plotvalue = 112% pctrecov = 112% Water Year = 2023 plotvalue = 114% pctrecov = 114% Water Year = 2023 plotvalue = 114% pctrecov = 114% Water Year = 2022 plotvalue = 90% pctrecov = 90% Water Year = 2021 plotvalue = 110% pctrecov = 110% Water Year = 2021 plotvalue = 111% pctrecov = 111% Water Year = 2021 plotvalue = 94% pctrecov = 94% Water Year = 2021 plotvalue = 94% pctrecov = 94% Water Year = 2020 plotvalue = 130% pctrecov = 139% Water Year = 2020 plotvalue = 87% pctrecov = 87% Water Year = 2019 plotvalue = 112% pctrecov = 112% Water Year = 2019 plotvalue = 113% pctrecov = 113% Water Year = 2019 plotvalue = 117% pctrecov = 117% Water Year = 2019 plotvalue = 119% pctrecov = 119% Water Year = 2019 plotvalue = 130% pctrecov = 158% Water Year = 2019 plotvalue = 70% pctrecov = 1% Water Year = 2017 plotvalue = 118% pctrecov = 118% Water Year = 2017 plotvalue = 119% pctrecov = 119% Water Year = 2017 plotvalue = 130% pctrecov = 139% Water Year = 2017 plotvalue = 130% pctrecov = 326% Water Year = 2017 plotvalue = 86% pctrecov = 86% Water Year = 2017 plotvalue = 85% pctrecov = 85% Water Year = 2017 plotvalue = 70% pctrecov = 3% Water Year = 2016 plotvalue = 109% pctrecov = 109% Water Year = 2016 plotvalue = 109% pctrecov = 109% Water Year = 2016 plotvalue = 110% pctrecov = 110% Water Year = 2016 plotvalue = 130% pctrecov = 206% Water Year = 2016 plotvalue = 70% pctrecov = 21% Water Year = 2016 plotvalue = 70% pctrecov = 1% Water Year = 2016 plotvalue = 70% pctrecov = 21% Water Year = 2016 plotvalue = 70% pctrecov = 21% Water Year = 2016 plotvalue = 70% pctrecov = 0% Water Year = 2015 plotvalue = 70% pctrecov = 29% Water Year = 2015 plotvalue = 70% pctrecov = 7% Water Year = 2014 plotvalue = 119% pctrecov = 119% Water Year = 2014 plotvalue = 130% pctrecov = 167% Water Year = 2014 plotvalue = 70% pctrecov = 4% Water Year = 2014 plotvalue = 70% pctrecov = 29% Water Year = 2014 plotvalue = 70% pctrecov = 1% Water Year = 2013 plotvalue = 116% pctrecov = 116% Water Year = 2013 plotvalue = 93% pctrecov = 93% Water Year = 2013 plotvalue = 89% pctrecov = 89% Water Year = 2013 plotvalue = 88% pctrecov = 88% Water Year = 2013 plotvalue = 70% pctrecov = 24% Water Year = 2012 plotvalue = 128% pctrecov = 128% Water Year = 2012 plotvalue = 78% pctrecov = 78% Water Year = 2012 plotvalue = 77% pctrecov = 77% Water Year = 2012 plotvalue = 76% pctrecov = 76% Water Year = 2012 plotvalue = 74% pctrecov = 74% Water Year = 2012 plotvalue = 71% pctrecov = 71% Water Year = 2012 plotvalue = 70% pctrecov = 65% Water Year = 2012 plotvalue = 70% pctrecov = 0% Water Year = 2012 plotvalue = 70% pctrecov = 0% Water Year = 2012 plotvalue = 70% pctrecov = 0% Water Year = 2012 plotvalue = 70% pctrecov = 1% Water Year = 2012 plotvalue = 70% pctrecov = 55% Water Year = 2012 plotvalue = 70% pctrecov = 1% Water Year = 2011 plotvalue = 119% pctrecov = 119% Water Year = 2011 plotvalue = 121% pctrecov = 121% Water Year = 2011 plotvalue = 86% pctrecov = 86% Water Year = 2011 plotvalue = 70% pctrecov = 7% Water Year = 2011 plotvalue = 70% pctrecov = 1% Water Year = 2011 plotvalue = 70% pctrecov = 4% Water Year = 2010 plotvalue = 124% pctrecov = 124% Water Year = 2010 plotvalue = 130% pctrecov = 131% Water Year = 2010 plotvalue = 70% pctrecov = 39% Water Year = 2024 First Quartile = 103% Median = 105% Third Quartile = 108% Number of Observations = 66 Water Year = 2024 First Quartile = 103% Median = 105% Third Quartile = 108% Number of Observations = 66 Water Year = 2024 First Quartile = 103% Median = 105% Third Quartile = 108% Number of Observations = 66 Water Year = 2024 First Quartile = 103% Median = 105% Third Quartile = 108% Number of Observations = 66 Water Year = 2024 First Quartile = 103% Median = 105% Third Quartile = 108% Number of Observations = 66 Water Year = 2024 First Quartile = 103% Median = 105% Third Quartile = 108% Number of Observations = 66 Water Year = 2024 First Quartile = 103% Median = 105% Third Quartile = 108% Number of Observations = 66 Water Year = 2024 First Quartile = 103% Median = 105% Third Quartile = 108% Number of Observations = 66 Water Year = 2023 First Quartile = 100% Median = 102% Third Quartile = 104% Number of Observations = 89 Water Year = 2023 First Quartile = 100% Median = 102% Third Quartile = 104% Number of Observations = 89 Water Year = 2023 First Quartile = 100% Median = 102% Third Quartile = 104% Number of Observations = 89 Water Year = 2023 First Quartile = 100% Median = 102% Third Quartile = 104% Number of Observations = 89 Water Year = 2023 First Quartile = 100% Median = 102% Third Quartile = 104% Number of Observations = 89 Water Year = 2023 First Quartile = 100% Median = 102% Third Quartile = 104% Number of Observations = 89 Water Year = 2023 First Quartile = 100% Median = 102% Third Quartile = 104% Number of Observations = 89 Water Year = 2023 First Quartile = 100% Median = 102% Third Quartile = 104% Number of Observations = 89 Water Year = 2022 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 89 Water Year = 2022 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 89 Water Year = 2022 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 89 Water Year = 2022 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 89 Water Year = 2022 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 89 Water Year = 2022 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 89 Water Year = 2022 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 89 Water Year = 2022 First Quartile = 99% Median = 101% Third Quartile = 103% Number of Observations = 89 Water Year = 2021 First Quartile = 100% Median = 102% Third Quartile = 103% Number of Observations = 90 Water Year = 2021 First Quartile = 100% Median = 102% Third Quartile = 103% Number of Observations = 90 Water Year = 2021 First Quartile = 100% Median = 102% Third Quartile = 103% Number of Observations = 90 Water Year = 2021 First Quartile = 100% Median = 102% Third Quartile = 103% Number of Observations = 90 Water Year = 2021 First Quartile = 100% Median = 102% Third Quartile = 103% Number of Observations = 90 Water Year = 2021 First Quartile = 100% Median = 102% Third Quartile = 103% Number of Observations = 90 Water Year = 2021 First Quartile = 100% Median = 102% Third Quartile = 103% Number of Observations = 90 Water Year = 2021 First Quartile = 100% Median = 102% Third Quartile = 103% Number of Observations = 90 Water Year = 2020 First Quartile = 98% Median = 102% Third Quartile = 105% Number of Observations = 86 Water Year = 2020 First Quartile = 98% Median = 102% Third Quartile = 105% Number of Observations = 86 Water Year = 2020 First Quartile = 98% Median = 102% Third Quartile = 105% Number of Observations = 86 Water Year = 2020 First Quartile = 98% Median = 102% Third Quartile = 105% Number of Observations = 86 Water Year = 2020 First Quartile = 98% Median = 102% Third Quartile = 105% Number of Observations = 86 Water Year = 2020 First Quartile = 98% Median = 102% Third Quartile = 105% Number of Observations = 86 Water Year = 2020 First Quartile = 98% Median = 102% Third Quartile = 105% Number of Observations = 86 Water Year = 2020 First Quartile = 98% Median = 102% Third Quartile = 105% Number of Observations = 86 Water Year = 2019 First Quartile = 98% Median = 100% Third Quartile = 103% Number of Observations = 78 Water Year = 2019 First Quartile = 98% Median = 100% Third Quartile = 103% Number of Observations = 78 Water Year = 2019 First Quartile = 98% Median = 100% Third Quartile = 103% Number of Observations = 78 Water Year = 2019 First Quartile = 98% Median = 100% Third Quartile = 103% Number of Observations = 78 Water Year = 2019 First Quartile = 98% Median = 100% Third Quartile = 103% Number of Observations = 78 Water Year = 2019 First Quartile = 98% Median = 100% Third Quartile = 103% Number of Observations = 78 Water Year = 2019 First Quartile = 98% Median = 100% Third Quartile = 103% Number of Observations = 78 Water Year = 2019 First Quartile = 98% Median = 100% Third Quartile = 103% Number of Observations = 78 Water Year = 2017 First Quartile = 102% Median = 104% Third Quartile = 108% Number of Observations = 90 Water Year = 2017 First Quartile = 102% Median = 104% Third Quartile = 108% Number of Observations = 90 Water Year = 2017 First Quartile = 102% Median = 104% Third Quartile = 108% Number of Observations = 90 Water Year = 2017 First Quartile = 102% Median = 104% Third Quartile = 108% Number of Observations = 90 Water Year = 2017 First Quartile = 102% Median = 104% Third Quartile = 108% Number of Observations = 90 Water Year = 2017 First Quartile = 102% Median = 104% Third Quartile = 108% Number of Observations = 90 Water Year = 2017 First Quartile = 102% Median = 104% Third Quartile = 108% Number of Observations = 90 Water Year = 2017 First Quartile = 102% Median = 104% Third Quartile = 108% Number of Observations = 90 Water Year = 2016 First Quartile = 93% Median = 97% Third Quartile = 99% Number of Observations = 90 Water Year = 2016 First Quartile = 93% Median = 97% Third Quartile = 99% Number of Observations = 90 Water Year = 2016 First Quartile = 93% Median = 97% Third Quartile = 99% Number of Observations = 90 Water Year = 2016 First Quartile = 93% Median = 97% Third Quartile = 99% Number of Observations = 90 Water Year = 2016 First Quartile = 93% Median = 97% Third Quartile = 99% Number of Observations = 90 Water Year = 2016 First Quartile = 93% Median = 97% Third Quartile = 99% Number of Observations = 90 Water Year = 2016 First Quartile = 93% Median = 97% Third Quartile = 99% Number of Observations = 90 Water Year = 2016 First Quartile = 93% Median = 97% Third Quartile = 99% Number of Observations = 90 Water Year = 2015 First Quartile = 96% Median = 100% Third Quartile = 104% Number of Observations = 90 Water Year = 2015 First Quartile = 96% Median = 100% Third Quartile = 104% Number of Observations = 90 Water Year = 2015 First Quartile = 96% Median = 100% Third Quartile = 104% Number of Observations = 90 Water Year = 2015 First Quartile = 96% Median = 100% Third Quartile = 104% Number of Observations = 90 Water Year = 2015 First Quartile = 96% Median = 100% Third Quartile = 104% Number of Observations = 90 Water Year = 2015 First Quartile = 96% Median = 100% Third Quartile = 104% Number of Observations = 90 Water Year = 2015 First Quartile = 96% Median = 100% Third Quartile = 104% Number of Observations = 90 Water Year = 2015 First Quartile = 96% Median = 100% Third Quartile = 104% Number of Observations = 90 Water Year = 2014 First Quartile = 99% Median = 102% Third Quartile = 106% Number of Observations = 83 Water Year = 2014 First Quartile = 99% Median = 102% Third Quartile = 106% Number of Observations = 83 Water Year = 2014 First Quartile = 99% Median = 102% Third Quartile = 106% Number of Observations = 83 Water Year = 2014 First Quartile = 99% Median = 102% Third Quartile = 106% Number of Observations = 83 Water Year = 2014 First Quartile = 99% Median = 102% Third Quartile = 106% Number of Observations = 83 Water Year = 2014 First Quartile = 99% Median = 102% Third Quartile = 106% Number of Observations = 83 Water Year = 2014 First Quartile = 99% Median = 102% Third Quartile = 106% Number of Observations = 83 Water Year = 2014 First Quartile = 99% Median = 102% Third Quartile = 106% Number of Observations = 83 Water Year = 2013 First Quartile = 102% Median = 104% Third Quartile = 107% Number of Observations = 108 Water Year = 2013 First Quartile = 102% Median = 104% Third Quartile = 107% Number of Observations = 108 Water Year = 2013 First Quartile = 102% Median = 104% Third Quartile = 107% Number of Observations = 108 Water Year = 2013 First Quartile = 102% Median = 104% Third Quartile = 107% Number of Observations = 108 Water Year = 2013 First Quartile = 102% Median = 104% Third Quartile = 107% Number of Observations = 108 Water Year = 2013 First Quartile = 102% Median = 104% Third Quartile = 107% Number of Observations = 108 Water Year = 2013 First Quartile = 102% Median = 104% Third Quartile = 107% Number of Observations = 108 Water Year = 2013 First Quartile = 102% Median = 104% Third Quartile = 107% Number of Observations = 108 Water Year = 2012 First Quartile = 96% Median = 103% Third Quartile = 109% Number of Observations = 132 Water Year = 2012 First Quartile = 96% Median = 103% Third Quartile = 109% Number of Observations = 132 Water Year = 2012 First Quartile = 96% Median = 103% Third Quartile = 109% Number of Observations = 132 Water Year = 2012 First Quartile = 96% Median = 103% Third Quartile = 109% Number of Observations = 132 Water Year = 2012 First Quartile = 96% Median = 103% Third Quartile = 109% Number of Observations = 132 Water Year = 2012 First Quartile = 96% Median = 103% Third Quartile = 109% Number of Observations = 132 Water Year = 2012 First Quartile = 96% Median = 103% Third Quartile = 109% Number of Observations = 132 Water Year = 2012 First Quartile = 96% Median = 103% Third Quartile = 109% Number of Observations = 132 Water Year = 2011 First Quartile = 101% Median = 105% Third Quartile = 108% Number of Observations = 131 Water Year = 2011 First Quartile = 101% Median = 105% Third Quartile = 108% Number of Observations = 131 Water Year = 2011 First Quartile = 101% Median = 105% Third Quartile = 108% Number of Observations = 131 Water Year = 2011 First Quartile = 101% Median = 105% Third Quartile = 108% Number of Observations = 131 Water Year = 2011 First Quartile = 101% Median = 105% Third Quartile = 108% Number of Observations = 131 Water Year = 2011 First Quartile = 101% Median = 105% Third Quartile = 108% Number of Observations = 131 Water Year = 2011 First Quartile = 101% Median = 105% Third Quartile = 108% Number of Observations = 131 Water Year = 2011 First Quartile = 101% Median = 105% Third Quartile = 108% Number of Observations = 131 Water Year = 2010 First Quartile = 97% Median = 103% Third Quartile = 107% Number of Observations = 132 Water Year = 2010 First Quartile = 97% Median = 103% Third Quartile = 107% Number of Observations = 132 Water Year = 2010 First Quartile = 97% Median = 103% Third Quartile = 107% Number of Observations = 132 Water Year = 2010 First Quartile = 97% Median = 103% Third Quartile = 107% Number of Observations = 132 Water Year = 2010 First Quartile = 97% Median = 103% Third Quartile = 107% Number of Observations = 132 Water Year = 2010 First Quartile = 97% Median = 103% Third Quartile = 107% Number of Observations = 132 Water Year = 2010 First Quartile = 97% Median = 103% Third Quartile = 107% Number of Observations = 132 Water Year = 2010 First Quartile = 97% Median = 103% Third Quartile = 107% Number of Observations = 132 Y = 1
The SGPlot Procedure

Percent Recovery Statistics for Zinc, fltd, cICP-MS

Analyte Parm-meth Code Water Year # of
Samples		 25th Pctl 50th Pctl
(Median)		 75th Pctl
Zinc, fltd, cICP-MS 01090PLM10 2010 132 96.8% 103.1% 106.8%
    2011 131 101.0% 104.8% 108.0%
    2012 132 96.4% 103.2% 108.7%
    2013 108 101.6% 103.9% 107.0%
    2014 83 98.9% 102.2% 106.1%
    2015 90 96.3% 100.4% 103.6%
    2016 90 92.8% 96.5% 99.2%
    2017 90 102.3% 104.3% 108.2%
    2019 78 98.1% 100.2% 103.0%
    2020 86 98.4% 102.0% 104.9%
    2021 90 100.1% 101.8% 103.4%
    2022 89 98.9% 101.2% 103.2%
    2023 89 100.2% 101.7% 104.1%
    2024 66 103.1% 105.2% 107.5%

Hover over boxplot or outliers for additional information
Chart generated 03/27/2025
Charts and data secured from this U.S. Geological Survey (USGS) web page (identified as IBSP) have not received official USGS approval and as such are provisional and subject to revision. The charts and data are released on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use.


- Zinc, unfltd, ICP-OES, recov -
Lab: NWQL, PCode: 01092, MCode: PLA15
Analysis Dates: 11/07/14 through 03/24/15
Open Data Set
Boxplot Description

Water Year = 2015 First Quartile = 91% Median = 94% Third Quartile = 95% Number of Observations = 16 Water Year = 2015 First Quartile = 91% Median = 94% Third Quartile = 95% Number of Observations = 16 Water Year = 2015 First Quartile = 91% Median = 94% Third Quartile = 95% Number of Observations = 16 Water Year = 2015 First Quartile = 91% Median = 94% Third Quartile = 95% Number of Observations = 16 Water Year = 2015 First Quartile = 91% Median = 94% Third Quartile = 95% Number of Observations = 16 Water Year = 2015 First Quartile = 91% Median = 94% Third Quartile = 95% Number of Observations = 16 Water Year = 2015 First Quartile = 91% Median = 94% Third Quartile = 95% Number of Observations = 16 Water Year = 2015 First Quartile = 91% Median = 94% Third Quartile = 95% Number of Observations = 16
The SGPlot Procedure

Percent Recovery Statistics for Zinc, unfltd, ICP-OES, recov

Analyte Parm-meth Code Water Year # of
Samples		 25th Pctl 50th Pctl
(Median)		 75th Pctl
Zinc, unfltd, ICP-OES, recov 01092PLA15 2015 16 91.4% 93.9% 95.1%

Hover over boxplot or outliers for additional information
Chart generated 03/27/2025
Charts and data secured from this U.S. Geological Survey (USGS) web page (identified as IBSP) have not received official USGS approval and as such are provisional and subject to revision. The charts and data are released on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use.


- Zinc, unfltd, ICP-OES, recov -
Lab: NWQL, PCode: 01092, MCode: PLO07
Analysis Dates: 05/28/15 through 09/21/24
Open Data Set
Boxplot Description

Water Year = 2024 plotvalue = 110% pctrecov = 110% Water Year = 2024 plotvalue = 110% pctrecov = 110% Water Year = 2024 plotvalue = 88% pctrecov = 88% Water Year = 2024 plotvalue = 83% pctrecov = 83% Water Year = 2022 plotvalue = 121% pctrecov = 121% Water Year = 2022 plotvalue = 94% pctrecov = 94% Water Year = 2022 plotvalue = 93% pctrecov = 93% Water Year = 2021 plotvalue = 86% pctrecov = 86% Water Year = 2020 plotvalue = 105% pctrecov = 105% Water Year = 2020 plotvalue = 106% pctrecov = 106% Water Year = 2020 plotvalue = 90% pctrecov = 90% Water Year = 2016 plotvalue = 79% pctrecov = 79% Water Year = 2016 plotvalue = 74% pctrecov = 74% Water Year = 2016 plotvalue = 70% pctrecov = 53% Water Year = 2016 plotvalue = 70% pctrecov = 67% Water Year = 2015 plotvalue = 104% pctrecov = 104% Water Year = 2015 plotvalue = 77% pctrecov = 77% Water Year = 2015 plotvalue = 70% pctrecov = 58% Water Year = 2024 First Quartile = 97% Median = 100% Third Quartile = 101% Number of Observations = 21 Water Year = 2024 First Quartile = 97% Median = 100% Third Quartile = 101% Number of Observations = 21 Water Year = 2024 First Quartile = 97% Median = 100% Third Quartile = 101% Number of Observations = 21 Water Year = 2024 First Quartile = 97% Median = 100% Third Quartile = 101% Number of Observations = 21 Water Year = 2024 First Quartile = 97% Median = 100% Third Quartile = 101% Number of Observations = 21 Water Year = 2024 First Quartile = 97% Median = 100% Third Quartile = 101% Number of Observations = 21 Water Year = 2024 First Quartile = 97% Median = 100% Third Quartile = 101% Number of Observations = 21 Water Year = 2024 First Quartile = 97% Median = 100% Third Quartile = 101% Number of Observations = 21 Water Year = 2023 First Quartile = 94% Median = 97% Third Quartile = 99% Number of Observations = 24 Water Year = 2023 First Quartile = 94% Median = 97% Third Quartile = 99% Number of Observations = 24 Water Year = 2023 First Quartile = 94% Median = 97% Third Quartile = 99% Number of Observations = 24 Water Year = 2023 First Quartile = 94% Median = 97% Third Quartile = 99% Number of Observations = 24 Water Year = 2023 First Quartile = 94% Median = 97% Third Quartile = 99% Number of Observations = 24 Water Year = 2023 First Quartile = 94% Median = 97% Third Quartile = 99% Number of Observations = 24 Water Year = 2023 First Quartile = 94% Median = 97% Third Quartile = 99% Number of Observations = 24 Water Year = 2023 First Quartile = 94% Median = 97% Third Quartile = 99% Number of Observations = 24 Water Year = 2022 First Quartile = 98% Median = 99% Third Quartile = 100% Number of Observations = 24 Water Year = 2022 First Quartile = 98% Median = 99% Third Quartile = 100% Number of Observations = 24 Water Year = 2022 First Quartile = 98% Median = 99% Third Quartile = 100% Number of Observations = 24 Water Year = 2022 First Quartile = 98% Median = 99% Third Quartile = 100% Number of Observations = 24 Water Year = 2022 First Quartile = 98% Median = 99% Third Quartile = 100% Number of Observations = 24 Water Year = 2022 First Quartile = 98% Median = 99% Third Quartile = 100% Number of Observations = 24 Water Year = 2022 First Quartile = 98% Median = 99% Third Quartile = 100% Number of Observations = 24 Water Year = 2022 First Quartile = 98% Median = 99% Third Quartile = 100% Number of Observations = 24 Water Year = 2021 First Quartile = 95% Median = 97% Third Quartile = 99% Number of Observations = 24 Water Year = 2021 First Quartile = 95% Median = 97% Third Quartile = 99% Number of Observations = 24 Water Year = 2021 First Quartile = 95% Median = 97% Third Quartile = 99% Number of Observations = 24 Water Year = 2021 First Quartile = 95% Median = 97% Third Quartile = 99% Number of Observations = 24 Water Year = 2021 First Quartile = 95% Median = 97% Third Quartile = 99% Number of Observations = 24 Water Year = 2021 First Quartile = 95% Median = 97% Third Quartile = 99% Number of Observations = 24 Water Year = 2021 First Quartile = 95% Median = 97% Third Quartile = 99% Number of Observations = 24 Water Year = 2021 First Quartile = 95% Median = 97% Third Quartile = 99% Number of Observations = 24 Water Year = 2020 First Quartile = 97% Median = 99% Third Quartile = 100% Number of Observations = 24 Water Year = 2020 First Quartile = 97% Median = 99% Third Quartile = 100% Number of Observations = 24 Water Year = 2020 First Quartile = 97% Median = 99% Third Quartile = 100% Number of Observations = 24 Water Year = 2020 First Quartile = 97% Median = 99% Third Quartile = 100% Number of Observations = 24 Water Year = 2020 First Quartile = 97% Median = 99% Third Quartile = 100% Number of Observations = 24 Water Year = 2020 First Quartile = 97% Median = 99% Third Quartile = 100% Number of Observations = 24 Water Year = 2020 First Quartile = 97% Median = 99% Third Quartile = 100% Number of Observations = 24 Water Year = 2020 First Quartile = 97% Median = 99% Third Quartile = 100% Number of Observations = 24 Water Year = 2019 First Quartile = 100% Median = 101% Third Quartile = 102% Number of Observations = 3 Water Year = 2019 First Quartile = 100% Median = 101% Third Quartile = 102% Number of Observations = 3 Water Year = 2019 First Quartile = 100% Median = 101% Third Quartile = 102% Number of Observations = 3 Water Year = 2019 First Quartile = 100% Median = 101% Third Quartile = 102% Number of Observations = 3 Water Year = 2019 First Quartile = 100% Median = 101% Third Quartile = 102% Number of Observations = 3 Water Year = 2019 First Quartile = 100% Median = 101% Third Quartile = 102% Number of Observations = 3 Water Year = 2019 First Quartile = 100% Median = 101% Third Quartile = 102% Number of Observations = 3 Water Year = 2019 First Quartile = 100% Median = 101% Third Quartile = 102% Number of Observations = 3 Water Year = 2016 First Quartile = 91% Median = 94% Third Quartile = 98% Number of Observations = 41 Water Year = 2016 First Quartile = 91% Median = 94% Third Quartile = 98% Number of Observations = 41 Water Year = 2016 First Quartile = 91% Median = 94% Third Quartile = 98% Number of Observations = 41 Water Year = 2016 First Quartile = 91% Median = 94% Third Quartile = 98% Number of Observations = 41 Water Year = 2016 First Quartile = 91% Median = 94% Third Quartile = 98% Number of Observations = 41 Water Year = 2016 First Quartile = 91% Median = 94% Third Quartile = 98% Number of Observations = 41 Water Year = 2016 First Quartile = 91% Median = 94% Third Quartile = 98% Number of Observations = 41 Water Year = 2016 First Quartile = 91% Median = 94% Third Quartile = 98% Number of Observations = 41 Water Year = 2015 First Quartile = 92% Median = 95% Third Quartile = 97% Number of Observations = 26 Water Year = 2015 First Quartile = 92% Median = 95% Third Quartile = 97% Number of Observations = 26 Water Year = 2015 First Quartile = 92% Median = 95% Third Quartile = 97% Number of Observations = 26 Water Year = 2015 First Quartile = 92% Median = 95% Third Quartile = 97% Number of Observations = 26 Water Year = 2015 First Quartile = 92% Median = 95% Third Quartile = 97% Number of Observations = 26 Water Year = 2015 First Quartile = 92% Median = 95% Third Quartile = 97% Number of Observations = 26 Water Year = 2015 First Quartile = 92% Median = 95% Third Quartile = 97% Number of Observations = 26 Water Year = 2015 First Quartile = 92% Median = 95% Third Quartile = 97% Number of Observations = 26 Y = 1
The SGPlot Procedure

Percent Recovery Statistics for Zinc, unfltd, ICP-OES, recov

Analyte Parm-meth Code Water Year # of
Samples		 25th Pctl 50th Pctl
(Median)		 75th Pctl
Zinc, unfltd, ICP-OES, recov 01092PLO07 2015 26 92.3% 95.4% 96.9%
    2016 41 90.5% 93.8% 97.9%
    2019 3 100.0% 101.4% 101.6%
    2020 24 97.0% 98.8% 99.9%
    2021 24 94.5% 96.8% 99.3%
    2022 24 97.7% 98.9% 100.2%
    2023 24 94.1% 96.6% 98.8%
    2024 21 97.4% 99.8% 101.2%

Hover over boxplot or outliers for additional information
Chart generated 03/27/2025
Charts and data secured from this U.S. Geological Survey (USGS) web page (identified as IBSP) have not received official USGS approval and as such are provisional and subject to revision. The charts and data are released on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use.


- Zinc, unfltd, cICP-MS, recov -
Lab: NWQL, PCode: 01092, MCode: PLM11
Analysis Dates: 10/05/09 through 04/30/15
Open Data Set
Boxplot Description

Water Year = 2014 plotvalue = 107% pctrecov = 107% Water Year = 2012 plotvalue = 88% pctrecov = 88% Water Year = 2011 plotvalue = 103% pctrecov = 103% Water Year = 2011 plotvalue = 85% pctrecov = 85% Water Year = 2010 plotvalue = 106% pctrecov = 106% Water Year = 2010 plotvalue = 108% pctrecov = 108% Water Year = 2010 plotvalue = 114% pctrecov = 114% Water Year = 2010 plotvalue = 122% pctrecov = 122% Water Year = 2010 plotvalue = 130% pctrecov = 135% Water Year = 2015 First Quartile = 92% Median = 94% Third Quartile = 97% Number of Observations = 33 Water Year = 2015 First Quartile = 92% Median = 94% Third Quartile = 97% Number of Observations = 33 Water Year = 2015 First Quartile = 92% Median = 94% Third Quartile = 97% Number of Observations = 33 Water Year = 2015 First Quartile = 92% Median = 94% Third Quartile = 97% Number of Observations = 33 Water Year = 2015 First Quartile = 92% Median = 94% Third Quartile = 97% Number of Observations = 33 Water Year = 2015 First Quartile = 92% Median = 94% Third Quartile = 97% Number of Observations = 33 Water Year = 2015 First Quartile = 92% Median = 94% Third Quartile = 97% Number of Observations = 33 Water Year = 2015 First Quartile = 92% Median = 94% Third Quartile = 97% Number of Observations = 33 Water Year = 2014 First Quartile = 91% Median = 94% Third Quartile = 97% Number of Observations = 83 Water Year = 2014 First Quartile = 91% Median = 94% Third Quartile = 97% Number of Observations = 83 Water Year = 2014 First Quartile = 91% Median = 94% Third Quartile = 97% Number of Observations = 83 Water Year = 2014 First Quartile = 91% Median = 94% Third Quartile = 97% Number of Observations = 83 Water Year = 2014 First Quartile = 91% Median = 94% Third Quartile = 97% Number of Observations = 83 Water Year = 2014 First Quartile = 91% Median = 94% Third Quartile = 97% Number of Observations = 83 Water Year = 2014 First Quartile = 91% Median = 94% Third Quartile = 97% Number of Observations = 83 Water Year = 2014 First Quartile = 91% Median = 94% Third Quartile = 97% Number of Observations = 83 Water Year = 2013 First Quartile = 94% Median = 95% Third Quartile = 98% Number of Observations = 108 Water Year = 2013 First Quartile = 94% Median = 95% Third Quartile = 98% Number of Observations = 108 Water Year = 2013 First Quartile = 94% Median = 95% Third Quartile = 98% Number of Observations = 108 Water Year = 2013 First Quartile = 94% Median = 95% Third Quartile = 98% Number of Observations = 108 Water Year = 2013 First Quartile = 94% Median = 95% Third Quartile = 98% Number of Observations = 108 Water Year = 2013 First Quartile = 94% Median = 95% Third Quartile = 98% Number of Observations = 108 Water Year = 2013 First Quartile = 94% Median = 95% Third Quartile = 98% Number of Observations = 108 Water Year = 2013 First Quartile = 94% Median = 95% Third Quartile = 98% Number of Observations = 108 Water Year = 2012 First Quartile = 95% Median = 98% Third Quartile = 99% Number of Observations = 83 Water Year = 2012 First Quartile = 95% Median = 98% Third Quartile = 99% Number of Observations = 83 Water Year = 2012 First Quartile = 95% Median = 98% Third Quartile = 99% Number of Observations = 83 Water Year = 2012 First Quartile = 95% Median = 98% Third Quartile = 99% Number of Observations = 83 Water Year = 2012 First Quartile = 95% Median = 98% Third Quartile = 99% Number of Observations = 83 Water Year = 2012 First Quartile = 95% Median = 98% Third Quartile = 99% Number of Observations = 83 Water Year = 2012 First Quartile = 95% Median = 98% Third Quartile = 99% Number of Observations = 83 Water Year = 2012 First Quartile = 95% Median = 98% Third Quartile = 99% Number of Observations = 83 Water Year = 2011 First Quartile = 92% Median = 94% Third Quartile = 96% Number of Observations = 130 Water Year = 2011 First Quartile = 92% Median = 94% Third Quartile = 96% Number of Observations = 130 Water Year = 2011 First Quartile = 92% Median = 94% Third Quartile = 96% Number of Observations = 130 Water Year = 2011 First Quartile = 92% Median = 94% Third Quartile = 96% Number of Observations = 130 Water Year = 2011 First Quartile = 92% Median = 94% Third Quartile = 96% Number of Observations = 130 Water Year = 2011 First Quartile = 92% Median = 94% Third Quartile = 96% Number of Observations = 130 Water Year = 2011 First Quartile = 92% Median = 94% Third Quartile = 96% Number of Observations = 130 Water Year = 2011 First Quartile = 92% Median = 94% Third Quartile = 96% Number of Observations = 130 Water Year = 2010 First Quartile = 90% Median = 92% Third Quartile = 96% Number of Observations = 131 Water Year = 2010 First Quartile = 90% Median = 92% Third Quartile = 96% Number of Observations = 131 Water Year = 2010 First Quartile = 90% Median = 92% Third Quartile = 96% Number of Observations = 131 Water Year = 2010 First Quartile = 90% Median = 92% Third Quartile = 96% Number of Observations = 131 Water Year = 2010 First Quartile = 90% Median = 92% Third Quartile = 96% Number of Observations = 131 Water Year = 2010 First Quartile = 90% Median = 92% Third Quartile = 96% Number of Observations = 131 Water Year = 2010 First Quartile = 90% Median = 92% Third Quartile = 96% Number of Observations = 131 Water Year = 2010 First Quartile = 90% Median = 92% Third Quartile = 96% Number of Observations = 131 Water Year = 2009 First Quartile = 96% Median = 97% Third Quartile = 99% Number of Observations = 9 Water Year = 2009 First Quartile = 96% Median = 97% Third Quartile = 99% Number of Observations = 9 Water Year = 2009 First Quartile = 96% Median = 97% Third Quartile = 99% Number of Observations = 9 Water Year = 2009 First Quartile = 96% Median = 97% Third Quartile = 99% Number of Observations = 9 Water Year = 2009 First Quartile = 96% Median = 97% Third Quartile = 99% Number of Observations = 9 Water Year = 2009 First Quartile = 96% Median = 97% Third Quartile = 99% Number of Observations = 9 Water Year = 2009 First Quartile = 96% Median = 97% Third Quartile = 99% Number of Observations = 9 Water Year = 2009 First Quartile = 96% Median = 97% Third Quartile = 99% Number of Observations = 9 Y = 1
The SGPlot Procedure

Percent Recovery Statistics for Zinc, unfltd, cICP-MS, recov

Analyte Parm-meth Code Water Year # of
Samples		 25th Pctl 50th Pctl
(Median)		 75th Pctl
Zinc, unfltd, cICP-MS, recov 01092PLM11 2009 9 95.6% 97.4% 98.8%
    2010 131 89.8% 92.2% 96.1%
    2011 130 91.8% 93.6% 96.1%
    2012 83 95.0% 97.8% 99.5%
    2013 108 93.5% 95.2% 98.1%
    2014 83 91.1% 94.3% 96.5%
    2015 33 91.7% 94.2% 97.3%

Hover over boxplot or outliers for additional information
Chart generated 03/27/2025
Charts and data secured from this U.S. Geological Survey (USGS) web page (identified as IBSP) have not received official USGS approval and as such are provisional and subject to revision. The charts and data are released on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use.


- Zinc, unfltd, cICP-MS, recov -
Lab: NWQL, PCode: 01092, MCode: PLM77
Analysis Dates: 05/12/15 through 09/21/24
Open Data Set
Boxplot Description

Water Year = 2024 plotvalue = 129% pctrecov = 129% Water Year = 2024 plotvalue = 130% pctrecov = 136% Water Year = 2022 plotvalue = 114% pctrecov = 114% Water Year = 2020 plotvalue = 125% pctrecov = 125% Water Year = 2017 plotvalue = 130% pctrecov = 168% Water Year = 2017 plotvalue = 84% pctrecov = 84% Water Year = 2016 plotvalue = 108% pctrecov = 108% Water Year = 2016 plotvalue = 118% pctrecov = 118% Water Year = 2016 plotvalue = 130% pctrecov = 193% Water Year = 2015 plotvalue = 112% pctrecov = 112% Water Year = 2024 First Quartile = 101% Median = 103% Third Quartile = 111% Number of Observations = 36 Water Year = 2024 First Quartile = 101% Median = 103% Third Quartile = 111% Number of Observations = 36 Water Year = 2024 First Quartile = 101% Median = 103% Third Quartile = 111% Number of Observations = 36 Water Year = 2024 First Quartile = 101% Median = 103% Third Quartile = 111% Number of Observations = 36 Water Year = 2024 First Quartile = 101% Median = 103% Third Quartile = 111% Number of Observations = 36 Water Year = 2024 First Quartile = 101% Median = 103% Third Quartile = 111% Number of Observations = 36 Water Year = 2024 First Quartile = 101% Median = 103% Third Quartile = 111% Number of Observations = 36 Water Year = 2024 First Quartile = 101% Median = 103% Third Quartile = 111% Number of Observations = 36 Water Year = 2023 First Quartile = 98% Median = 102% Third Quartile = 105% Number of Observations = 48 Water Year = 2023 First Quartile = 98% Median = 102% Third Quartile = 105% Number of Observations = 48 Water Year = 2023 First Quartile = 98% Median = 102% Third Quartile = 105% Number of Observations = 48 Water Year = 2023 First Quartile = 98% Median = 102% Third Quartile = 105% Number of Observations = 48 Water Year = 2023 First Quartile = 98% Median = 102% Third Quartile = 105% Number of Observations = 48 Water Year = 2023 First Quartile = 98% Median = 102% Third Quartile = 105% Number of Observations = 48 Water Year = 2023 First Quartile = 98% Median = 102% Third Quartile = 105% Number of Observations = 48 Water Year = 2023 First Quartile = 98% Median = 102% Third Quartile = 105% Number of Observations = 48 Water Year = 2022 First Quartile = 99% Median = 102% Third Quartile = 104% Number of Observations = 47 Water Year = 2022 First Quartile = 99% Median = 102% Third Quartile = 104% Number of Observations = 47 Water Year = 2022 First Quartile = 99% Median = 102% Third Quartile = 104% Number of Observations = 47 Water Year = 2022 First Quartile = 99% Median = 102% Third Quartile = 104% Number of Observations = 47 Water Year = 2022 First Quartile = 99% Median = 102% Third Quartile = 104% Number of Observations = 47 Water Year = 2022 First Quartile = 99% Median = 102% Third Quartile = 104% Number of Observations = 47 Water Year = 2022 First Quartile = 99% Median = 102% Third Quartile = 104% Number of Observations = 47 Water Year = 2022 First Quartile = 99% Median = 102% Third Quartile = 104% Number of Observations = 47 Water Year = 2021 First Quartile = 97% Median = 102% Third Quartile = 104% Number of Observations = 48 Water Year = 2021 First Quartile = 97% Median = 102% Third Quartile = 104% Number of Observations = 48 Water Year = 2021 First Quartile = 97% Median = 102% Third Quartile = 104% Number of Observations = 48 Water Year = 2021 First Quartile = 97% Median = 102% Third Quartile = 104% Number of Observations = 48 Water Year = 2021 First Quartile = 97% Median = 102% Third Quartile = 104% Number of Observations = 48 Water Year = 2021 First Quartile = 97% Median = 102% Third Quartile = 104% Number of Observations = 48 Water Year = 2021 First Quartile = 97% Median = 102% Third Quartile = 104% Number of Observations = 48 Water Year = 2021 First Quartile = 97% Median = 102% Third Quartile = 104% Number of Observations = 48 Water Year = 2020 First Quartile = 98% Median = 101% Third Quartile = 105% Number of Observations = 44 Water Year = 2020 First Quartile = 98% Median = 101% Third Quartile = 105% Number of Observations = 44 Water Year = 2020 First Quartile = 98% Median = 101% Third Quartile = 105% Number of Observations = 44 Water Year = 2020 First Quartile = 98% Median = 101% Third Quartile = 105% Number of Observations = 44 Water Year = 2020 First Quartile = 98% Median = 101% Third Quartile = 105% Number of Observations = 44 Water Year = 2020 First Quartile = 98% Median = 101% Third Quartile = 105% Number of Observations = 44 Water Year = 2020 First Quartile = 98% Median = 101% Third Quartile = 105% Number of Observations = 44 Water Year = 2020 First Quartile = 98% Median = 101% Third Quartile = 105% Number of Observations = 44 Water Year = 2019 First Quartile = 99% Median = 101% Third Quartile = 104% Number of Observations = 55 Water Year = 2019 First Quartile = 99% Median = 101% Third Quartile = 104% Number of Observations = 55 Water Year = 2019 First Quartile = 99% Median = 101% Third Quartile = 104% Number of Observations = 55 Water Year = 2019 First Quartile = 99% Median = 101% Third Quartile = 104% Number of Observations = 55 Water Year = 2019 First Quartile = 99% Median = 101% Third Quartile = 104% Number of Observations = 55 Water Year = 2019 First Quartile = 99% Median = 101% Third Quartile = 104% Number of Observations = 55 Water Year = 2019 First Quartile = 99% Median = 101% Third Quartile = 104% Number of Observations = 55 Water Year = 2019 First Quartile = 99% Median = 101% Third Quartile = 104% Number of Observations = 55 Water Year = 2017 First Quartile = 100% Median = 103% Third Quartile = 106% Number of Observations = 66 Water Year = 2017 First Quartile = 100% Median = 103% Third Quartile = 106% Number of Observations = 66 Water Year = 2017 First Quartile = 100% Median = 103% Third Quartile = 106% Number of Observations = 66 Water Year = 2017 First Quartile = 100% Median = 103% Third Quartile = 106% Number of Observations = 66 Water Year = 2017 First Quartile = 100% Median = 103% Third Quartile = 106% Number of Observations = 66 Water Year = 2017 First Quartile = 100% Median = 103% Third Quartile = 106% Number of Observations = 66 Water Year = 2017 First Quartile = 100% Median = 103% Third Quartile = 106% Number of Observations = 66 Water Year = 2017 First Quartile = 100% Median = 103% Third Quartile = 106% Number of Observations = 66 Water Year = 2016 First Quartile = 95% Median = 97% Third Quartile = 100% Number of Observations = 66 Water Year = 2016 First Quartile = 95% Median = 97% Third Quartile = 100% Number of Observations = 66 Water Year = 2016 First Quartile = 95% Median = 97% Third Quartile = 100% Number of Observations = 66 Water Year = 2016 First Quartile = 95% Median = 97% Third Quartile = 100% Number of Observations = 66 Water Year = 2016 First Quartile = 95% Median = 97% Third Quartile = 100% Number of Observations = 66 Water Year = 2016 First Quartile = 95% Median = 97% Third Quartile = 100% Number of Observations = 66 Water Year = 2016 First Quartile = 95% Median = 97% Third Quartile = 100% Number of Observations = 66 Water Year = 2016 First Quartile = 95% Median = 97% Third Quartile = 100% Number of Observations = 66 Water Year = 2015 First Quartile = 92% Median = 94% Third Quartile = 99% Number of Observations = 33 Water Year = 2015 First Quartile = 92% Median = 94% Third Quartile = 99% Number of Observations = 33 Water Year = 2015 First Quartile = 92% Median = 94% Third Quartile = 99% Number of Observations = 33 Water Year = 2015 First Quartile = 92% Median = 94% Third Quartile = 99% Number of Observations = 33 Water Year = 2015 First Quartile = 92% Median = 94% Third Quartile = 99% Number of Observations = 33 Water Year = 2015 First Quartile = 92% Median = 94% Third Quartile = 99% Number of Observations = 33 Water Year = 2015 First Quartile = 92% Median = 94% Third Quartile = 99% Number of Observations = 33 Water Year = 2015 First Quartile = 92% Median = 94% Third Quartile = 99% Number of Observations = 33 Y = 1
The SGPlot Procedure

Percent Recovery Statistics for Zinc, unfltd, cICP-MS, recov

Analyte Parm-meth Code Water Year # of
Samples		 25th Pctl 50th Pctl
(Median)		 75th Pctl
Zinc, unfltd, cICP-MS, recov 01092PLM77 2015 33 91.6% 94.3% 98.9%
    2016 66 94.7% 96.6% 99.8%
    2017 66 100.1% 102.8% 105.6%
    2019 55 99.1% 101.3% 104.2%
    2020 44 98.2% 101.4% 104.8%
    2021 48 97.4% 102.0% 103.9%
    2022 47 99.3% 102.2% 104.1%
    2023 48 98.5% 101.6% 105.5%
    2024 36 100.6% 103.1% 111.0%

Hover over boxplot or outliers for additional information
Chart generated 03/27/2025
Charts and data secured from this U.S. Geological Survey (USGS) web page (identified as IBSP) have not received official USGS approval and as such are provisional and subject to revision. The charts and data are released on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use.