| - Nitrate + nitrite as N, fltd, DA - |
| Lab: NWQL, PCode: 00631, MCode: RED01 |
| Analysis Dates: 10/20/11 through 09/25/24 |
| Open Data Set |
| Boxplot Description |
| - Nitrate + nitrite as N, fltd, DA - |
| Lab: NWQL, PCode: 00631, MCode: RED01 |
| Analysis Dates: 10/20/11 through 09/25/24 |
| Open Data Set |
| Boxplot Description |
| Percent Recovery Statistics for Nitrate + nitrite as N, fltd, DA |
| Analyte | Parm-meth Code | Water Year | # of Samples |
25th Pctl | 50th Pctl (Median) |
75th Pctl |
|---|---|---|---|---|---|---|
| Nitrate + nitrite as N, fltd, DA | 00631RED01 | 2012 | 140 | 96.4% | 99.2% | 102.3% |
| 2013 | 108 | 95.4% | 97.6% | 99.9% | ||
| 2014 | 88 | 93.8% | 97.2% | 99.8% | ||
| 2015 | 96 | 92.5% | 94.6% | 96.9% | ||
| 2016 | 96 | 95.6% | 98.5% | 100.4% | ||
| 2017 | 87 | 97.4% | 99.4% | 100.4% | ||
| 2019 | 80 | 95.8% | 99.0% | 100.7% | ||
| 2020 | 95 | 98.1% | 100.3% | 103.1% | ||
| 2021 | 95 | 96.0% | 98.5% | 100.5% | ||
| 2022 | 69 | 94.5% | 96.4% | 98.6% | ||
| 2023 | 96 | 94.3% | 97.3% | 99.5% | ||
| 2024 | 89 | 94.5% | 96.4% | 98.1% |
| 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. |
| - Nitrate + nitrite as N, fltd, DA - |
| Lab: NWQL, PCode: 00631, MCode: RED03 |
| Analysis Dates: 10/25/23 through 09/11/24 |
| Open Data Set |
| Boxplot Description |
| Percent Recovery Statistics for Nitrate + nitrite as N, fltd, DA |
| Analyte | Parm-meth Code | Water Year | # of Samples |
25th Pctl | 50th Pctl (Median) |
75th Pctl |
|---|---|---|---|---|---|---|
| Nitrate + nitrite as N, fltd, DA | 00631RED03 | 2024 | 22 | 92.6% | 95.3% | 97.2% |
| 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. |
| - Nitrate + nitrite as N, fltd, DA, LL - |
| Lab: NWQL, PCode: 00631, MCode: RED02 |
| Analysis Dates: 10/20/11 through 09/24/24 |
| Open Data Set |
| Boxplot Description |
| Percent Recovery Statistics for Nitrate + nitrite as N, fltd, DA, LL |
| Analyte | Parm-meth Code | Water Year | # of Samples |
25th Pctl | 50th Pctl (Median) |
75th Pctl |
|---|---|---|---|---|---|---|
| Nitrate + nitrite as N, fltd, DA, LL | 00631RED02 | 2012 | 140 | 97.4% | 99.8% | 102.4% |
| 2013 | 108 | 96.1% | 98.6% | 101.0% | ||
| 2014 | 90 | 97.5% | 99.6% | 101.3% | ||
| 2015 | 96 | 96.0% | 98.0% | 100.0% | ||
| 2016 | 94 | 98.2% | 99.5% | 102.1% | ||
| 2017 | 90 | 96.6% | 98.7% | 102.5% | ||
| 2019 | 58 | 95.5% | 97.8% | 101.9% | ||
| 2020 | 65 | 96.9% | 99.7% | 103.3% | ||
| 2021 | 66 | 97.6% | 99.4% | 101.9% | ||
| 2022 | 46 | 95.2% | 98.3% | 100.2% | ||
| 2023 | 66 | 94.3% | 98.6% | 102.4% | ||
| 2024 | 61 | 94.0% | 95.6% | 98.4% |
| 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. |
| - Nitrate plus Nitrite (as N), FIL, COL - |
| Lab: NWQL, PCode: 00631, MCode: CL048 |
| Analysis Dates: 10/09/09 through 10/17/11 |
| Open Data Set |
| Boxplot Description |
| Percent Recovery Statistics for Nitrate plus Nitrite (as N), FIL, COL |
| Analyte | Parm-meth Code | Water Year | # of Samples |
25th Pctl | 50th Pctl (Median) |
75th Pctl |
|---|---|---|---|---|---|---|
| Nitrate plus Nitrite (as N), FIL, COL | 00631CL048 | 2010 | 144 | 98.4% | 99.7% | 101.0% |
| 2011 | 138 | 98.2% | 99.7% | 101.7% | ||
| 2012 | 5 | 98.0% | 98.0% | 98.6% |
| 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. |
| - Nitrate plus Nitrite (as N), FIL, COL, LL - |
| Lab: NWQL, PCode: 00631, MCode: CL050 |
| Analysis Dates: 10/27/09 through 10/18/11 |
| Open Data Set |
| Boxplot Description |
| Percent Recovery Statistics for Nitrate plus Nitrite (as N), FIL, COL, LL |
| Analyte | Parm-meth Code | Water Year | # of Samples |
25th Pctl | 50th Pctl (Median) |
75th Pctl |
|---|---|---|---|---|---|---|
| Nitrate plus Nitrite (as N), FIL, COL, LL | 00631CL050 | 2010 | 144 | 100.1% | 101.8% | 103.9% |
| 2011 | 137 | 97.9% | 100.0% | 101.8% | ||
| 2012 | 4 | 100.0% | 100.8% | 101.6% |
| 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. |
| - Orthophosphate as P, fltd, DA - |
| Lab: NWQL, PCode: 00671, MCode: PHM01 |
| Analysis Dates: 10/07/09 through 09/20/24 |
| Open Data Set |
| Boxplot Description |
| Percent Recovery Statistics for Orthophosphate as P, fltd, DA |
| Analyte | Parm-meth Code | Water Year | # of Samples |
25th Pctl | 50th Pctl (Median) |
75th Pctl |
|---|---|---|---|---|---|---|
| Orthophosphate as P, fltd, DA | 00671PHM01 | 2009 | 6 | 98.6% | 103.3% | 106.9% |
| 2010 | 144 | 100.0% | 102.9% | 105.2% | ||
| 2011 | 120 | 100.0% | 101.8% | 104.4% | ||
| 2012 | 116 | 99.3% | 100.9% | 102.7% | ||
| 2013 | 108 | 99.5% | 101.3% | 103.3% | ||
| 2014 | 67 | 98.0% | 100.3% | 102.3% | ||
| 2015 | 96 | 99.6% | 101.5% | 103.9% | ||
| 2016 | 96 | 100.4% | 102.0% | 104.3% | ||
| 2017 | 87 | 99.5% | 101.5% | 103.1% | ||
| 2019 | 80 | 99.9% | 102.8% | 110.7% | ||
| 2020 | 95 | 98.0% | 101.7% | 105.7% | ||
| 2021 | 96 | 98.2% | 102.0% | 105.9% | ||
| 2022 | 91 | 97.4% | 100.6% | 103.8% | ||
| 2023 | 96 | 100.4% | 102.2% | 105.9% | ||
| 2024 | 62 | 101.8% | 104.0% | 106.1% |
| 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. |
| - Phosphorus as P, fltd, CFA - |
| Lab: NWQL, PCode: 00666, MCode: CL063 |
| Analysis Dates: 10/06/09 through 09/26/24 |
| Open Data Set |
| Boxplot Description |
| Percent Recovery Statistics for Phosphorus as P, fltd, CFA |
| Analyte | Parm-meth Code | Water Year | # of Samples |
25th Pctl | 50th Pctl (Median) |
75th Pctl |
|---|---|---|---|---|---|---|
| Phosphorus as P, fltd, CFA | 00666CL063 | 2009 | 4 | 98.9% | 102.3% | 104.4% |
| 2010 | 49 | 98.1% | 100.3% | 101.6% | ||
| 2011 | 48 | 95.6% | 98.5% | 100.0% | ||
| 2012 | 48 | 98.3% | 99.8% | 101.1% | ||
| 2013 | 36 | 96.8% | 99.3% | 101.6% | ||
| 2014 | 23 | 97.3% | 99.1% | 100.9% | ||
| 2015 | 24 | 98.6% | 100.7% | 101.7% | ||
| 2016 | 24 | 99.9% | 101.9% | 104.3% | ||
| 2017 | 24 | 97.2% | 100.0% | 101.7% | ||
| 2019 | 3 | 100.0% | 104.0% | 104.1% | ||
| 2020 | 24 | 98.5% | 100.0% | 102.2% | ||
| 2021 | 24 | 100.2% | 102.3% | 105.1% | ||
| 2022 | 24 | 97.3% | 99.4% | 101.7% | ||
| 2023 | 21 | 98.3% | 100.0% | 105.1% | ||
| 2024 | 19 | 96.0% | 97.7% | 99.2% |
| 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. |
| - Phosphorus as P, fltd, CFA - |
| Lab: NWQL, PCode: 00666, MCode: KJ005 |
| Analysis Dates: 10/15/09 through 09/19/24 |
| Open Data Set |
| Boxplot Description |
| Percent Recovery Statistics for Phosphorus as P, fltd, CFA |
| Analyte | Parm-meth Code | Water Year | # of Samples |
25th Pctl | 50th Pctl (Median) |
75th Pctl |
|---|---|---|---|---|---|---|
| Phosphorus as P, fltd, CFA | 00666KJ005 | 2010 | 144 | 98.0% | 100.0% | 101.3% |
| 2011 | 138 | 97.8% | 99.3% | 100.7% | ||
| 2012 | 134 | 98.3% | 99.4% | 100.8% | ||
| 2013 | 103 | 97.9% | 99.2% | 100.5% | ||
| 2014 | 84 | 97.4% | 98.9% | 102.0% | ||
| 2015 | 90 | 96.8% | 99.8% | 103.7% | ||
| 2016 | 90 | 98.8% | 100.4% | 102.7% | ||
| 2017 | 77 | 97.2% | 99.8% | 101.4% | ||
| 2019 | 78 | 98.4% | 100.7% | 101.7% | ||
| 2020 | 74 | 91.8% | 95.6% | 98.2% | ||
| 2021 | 74 | 92.9% | 96.0% | 98.0% | ||
| 2022 | 74 | 88.8% | 94.0% | 98.5% | ||
| 2023 | 96 | 93.9% | 97.2% | 101.5% | ||
| 2024 | 89 | 92.3% | 96.2% | 99.6% |
| 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. |
| - Phosphorus as P, fltd, CFA, LL, EPA - |
| Lab: NWQL, PCode: 00666, MCode: CL019 |
| Analysis Dates: 11/12/09 through 10/07/11 |
| Open Data Set |
| Boxplot Description |
| Percent Recovery Statistics for Phosphorus as P, fltd, CFA, LL, EPA |
| Analyte | Parm-meth Code | Water Year | # of Samples |
25th Pctl | 50th Pctl (Median) |
75th Pctl |
|---|---|---|---|---|---|---|
| Phosphorus as P, fltd, CFA, LL, EPA | 00666CL019 | 2010 | 59 | 98.7% | 100.0% | 102.4% |
| 2011 | 60 | 97.2% | 99.5% | 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. |
| - Phosphorus as P, fltd, CFA, LL, EPA - |
| Lab: NWQL, PCode: 00666, MCode: CL020 |
| Analysis Dates: 10/21/09 through 09/27/24 |
| Open Data Set |
| Boxplot Description |
| Percent Recovery Statistics for Phosphorus as P, fltd, CFA, LL, EPA |
| Analyte | Parm-meth Code | Water Year | # of Samples |
25th Pctl | 50th Pctl (Median) |
75th Pctl |
|---|---|---|---|---|---|---|
| Phosphorus as P, fltd, CFA, LL, EPA | 00666CL020 | 2009 | 5 | 102.2% | 102.4% | 102.8% |
| 2010 | 143 | 99.5% | 101.0% | 102.5% | ||
| 2011 | 144 | 97.6% | 99.6% | 101.3% | ||
| 2012 | 144 | 99.2% | 101.9% | 104.0% | ||
| 2013 | 108 | 101.0% | 102.5% | 104.6% | ||
| 2014 | 90 | 101.2% | 103.1% | 104.9% | ||
| 2015 | 96 | 99.9% | 102.7% | 104.9% | ||
| 2016 | 94 | 101.7% | 103.9% | 105.2% | ||
| 2017 | 90 | 100.8% | 103.0% | 105.1% | ||
| 2019 | 58 | 101.3% | 103.2% | 105.6% | ||
| 2020 | 65 | 99.1% | 101.0% | 102.8% | ||
| 2021 | 66 | 99.8% | 101.1% | 103.9% | ||
| 2022 | 64 | 99.5% | 101.8% | 104.9% | ||
| 2023 | 66 | 96.0% | 99.3% | 104.3% | ||
| 2024 | 46 | 98.1% | 101.4% | 102.9% |
| 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. |
| - Phosphorus as P, unfltd, CFA - |
| Lab: NWQL, PCode: 00665, MCode: AKP01 |
| Analysis Dates: 10/02/09 through 09/27/24 |
| Open Data Set |
| Boxplot Description |
| Percent Recovery Statistics for Phosphorus as P, unfltd, CFA |
| Analyte | Parm-meth Code | Water Year | # of Samples |
25th Pctl | 50th Pctl (Median) |
75th Pctl |
|---|---|---|---|---|---|---|
| Phosphorus as P, unfltd, CFA | 00665AKP01 | 2009 | 7 | 98.6% | 99.3% | 100.3% |
| 2010 | 96 | 97.6% | 99.4% | 101.0% | ||
| 2011 | 81 | 97.0% | 98.3% | 99.8% | ||
| 2012 | 21 | 99.2% | 99.6% | 101.6% | ||
| 2013 | 36 | 97.7% | 99.1% | 100.7% | ||
| 2014 | 23 | 97.7% | 98.9% | 101.7% | ||
| 2015 | 24 | 97.4% | 100.9% | 103.4% | ||
| 2016 | 24 | 98.3% | 101.2% | 103.5% | ||
| 2017 | 24 | 98.3% | 101.3% | 103.5% | ||
| 2019 | 20 | 96.6% | 99.3% | 101.5% | ||
| 2020 | 24 | 97.8% | 99.2% | 101.8% | ||
| 2021 | 24 | 99.8% | 103.0% | 105.9% | ||
| 2022 | 24 | 96.4% | 98.7% | 100.6% | ||
| 2023 | 23 | 97.8% | 100.8% | 103.8% | ||
| 2024 | 15 | 95.3% | 96.2% | 100.0% |
| 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. |
| - Phosphorus as P, unfltd, CFA - |
| Lab: NWQL, PCode: 00665, MCode: KJ009 |
| Analysis Dates: 10/01/09 through 09/19/24 |
| Open Data Set |
| Boxplot Description |
| Percent Recovery Statistics for Phosphorus as P, unfltd, CFA |
| Analyte | Parm-meth Code | Water Year | # of Samples |
25th Pctl | 50th Pctl (Median) |
75th Pctl |
|---|---|---|---|---|---|---|
| Phosphorus as P, unfltd, CFA | 00665KJ009 | 2009 | 4 | 98.9% | 99.5% | 99.9% |
| 2010 | 144 | 96.3% | 98.6% | 100.6% | ||
| 2011 | 138 | 97.0% | 98.4% | 100.0% | ||
| 2012 | 134 | 97.2% | 98.5% | 99.6% | ||
| 2013 | 103 | 96.7% | 97.8% | 99.5% | ||
| 2014 | 84 | 96.4% | 98.2% | 101.4% | ||
| 2015 | 90 | 97.5% | 100.0% | 103.2% | ||
| 2016 | 90 | 98.4% | 100.5% | 102.4% | ||
| 2017 | 77 | 98.0% | 99.5% | 100.9% | ||
| 2019 | 78 | 98.2% | 99.8% | 101.0% | ||
| 2020 | 74 | 91.8% | 95.5% | 97.9% | ||
| 2021 | 74 | 93.5% | 96.4% | 98.0% | ||
| 2022 | 77 | 89.9% | 95.0% | 97.8% | ||
| 2023 | 96 | 93.2% | 96.2% | 100.7% | ||
| 2024 | 82 | 91.7% | 96.6% | 100.8% |
| 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. |
| - Phosphorus as P, unfltd, CFA, LL, EPA - |
| Lab: NWQL, PCode: 00665, MCode: CL021 |
| Analysis Dates: 10/01/09 through 09/16/24 |
| Open Data Set |
| Boxplot Description |
| Percent Recovery Statistics for Phosphorus as P, unfltd, CFA, LL, EPA |
| Analyte | Parm-meth Code | Water Year | # of Samples |
25th Pctl | 50th Pctl (Median) |
75th Pctl |
|---|---|---|---|---|---|---|
| Phosphorus as P, unfltd, CFA, LL, EPA | 00665CL021 | 2009 | 9 | 101.4% | 102.1% | 103.5% |
| 2010 | 144 | 99.2% | 100.5% | 101.9% | ||
| 2011 | 144 | 98.4% | 100.1% | 101.7% | ||
| 2012 | 144 | 98.4% | 101.6% | 103.3% | ||
| 2013 | 108 | 100.0% | 102.0% | 103.8% | ||
| 2014 | 90 | 100.6% | 102.4% | 104.5% | ||
| 2015 | 96 | 99.9% | 102.0% | 103.7% | ||
| 2016 | 94 | 102.5% | 104.2% | 105.9% | ||
| 2017 | 90 | 103.8% | 106.6% | 109.5% | ||
| 2019 | 58 | 101.4% | 103.1% | 105.8% | ||
| 2020 | 65 | 100.7% | 101.6% | 103.6% | ||
| 2021 | 66 | 99.3% | 101.4% | 103.5% | ||
| 2022 | 63 | 99.2% | 101.1% | 103.1% | ||
| 2023 | 66 | 96.6% | 99.3% | 102.5% | ||
| 2024 | 43 | 99.8% | 101.2% | 103.6% |
| 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. |
| - Total ammonia + organic nitrogen as N, fltd, CFA - |
| Lab: NWQL, PCode: 00623, MCode: KJ002 |
| Analysis Dates: 10/15/09 through 09/19/24 |
| Open Data Set |
| Boxplot Description |
| Percent Recovery Statistics for Total ammonia + organic nitrogen as N, fltd, CFA |
| Analyte | Parm-meth Code | Water Year | # of Samples |
25th Pctl | 50th Pctl (Median) |
75th Pctl |
|---|---|---|---|---|---|---|
| Total ammonia + organic nitrogen as N, fltd, CFA | 00623KJ002 | 2010 | 144 | 96.2% | 100.8% | 104.3% |
| 2011 | 132 | 95.5% | 99.7% | 104.1% | ||
| 2012 | 134 | 95.5% | 99.5% | 103.1% | ||
| 2013 | 103 | 93.5% | 98.6% | 103.7% | ||
| 2014 | 82 | 98.3% | 101.3% | 105.6% | ||
| 2015 | 90 | 91.6% | 101.1% | 104.9% | ||
| 2016 | 90 | 95.0% | 99.0% | 102.2% | ||
| 2017 | 77 | 88.8% | 98.6% | 101.7% | ||
| 2019 | 78 | 94.4% | 100.9% | 103.3% | ||
| 2020 | 74 | 90.3% | 97.3% | 100.8% | ||
| 2021 | 74 | 93.0% | 98.5% | 102.5% | ||
| 2022 | 54 | 76.1% | 96.8% | 101.9% | ||
| 2023 | 96 | 81.4% | 87.3% | 100.2% | ||
| 2024 | 88 | 85.3% | 93.5% | 97.8% |
| 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. |
| - Total ammonia + organic nitrogen as N, unfltd, CFA - |
| Lab: NWQL, PCode: 00625, MCode: KJ008 |
| Analysis Dates: 10/01/09 through 09/23/24 |
| Open Data Set |
| Boxplot Description |
| Percent Recovery Statistics for Total ammonia + organic nitrogen as N, unfltd, CFA |
| Analyte | Parm-meth Code | Water Year | # of Samples |
25th Pctl | 50th Pctl (Median) |
75th Pctl |
|---|---|---|---|---|---|---|
| Total ammonia + organic nitrogen as N, unfltd, CFA | 00625KJ008 | 2009 | 3 | 96.5% | 98.3% | 103.9% |
| 2010 | 144 | 97.2% | 101.4% | 104.7% | ||
| 2011 | 137 | 95.4% | 99.1% | 102.1% | ||
| 2012 | 134 | 96.5% | 100.5% | 103.7% | ||
| 2013 | 103 | 93.0% | 98.4% | 102.3% | ||
| 2014 | 84 | 96.4% | 100.6% | 103.1% | ||
| 2015 | 90 | 93.8% | 100.0% | 103.2% | ||
| 2016 | 90 | 94.1% | 99.2% | 103.1% | ||
| 2017 | 77 | 86.4% | 96.7% | 101.1% | ||
| 2019 | 78 | 94.2% | 101.5% | 103.6% | ||
| 2020 | 74 | 88.0% | 98.1% | 101.4% | ||
| 2021 | 74 | 88.5% | 100.1% | 102.5% | ||
| 2022 | 55 | 72.0% | 95.5% | 102.8% | ||
| 2023 | 96 | 81.3% | 90.0% | 99.6% | ||
| 2024 | 82 | 81.1% | 94.5% | 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. |
| - Total ammonia as N, fltd, DA - |
| Lab: NWQL, PCode: 00608, MCode: SHC02 |
| Analysis Dates: 10/07/09 through 09/20/24 |
| Open Data Set |
| Boxplot Description |
| Percent Recovery Statistics for Total ammonia as N, fltd, DA |
| Analyte | Parm-meth Code | Water Year | # of Samples |
25th Pctl | 50th Pctl (Median) |
75th Pctl |
|---|---|---|---|---|---|---|
| Total ammonia as N, fltd, DA | 00608SHC02 | 2009 | 4 | 99.7% | 100.5% | 102.6% |
| 2010 | 144 | 97.6% | 99.7% | 101.8% | ||
| 2011 | 138 | 97.1% | 99.7% | 103.6% | ||
| 2012 | 140 | 96.3% | 98.2% | 100.6% | ||
| 2013 | 108 | 96.6% | 99.0% | 101.3% | ||
| 2014 | 78 | 96.0% | 98.1% | 101.4% | ||
| 2015 | 96 | 96.5% | 98.8% | 100.9% | ||
| 2016 | 96 | 97.7% | 99.5% | 101.4% | ||
| 2017 | 87 | 94.9% | 96.9% | 98.4% | ||
| 2019 | 80 | 94.1% | 98.1% | 100.1% | ||
| 2020 | 95 | 96.2% | 98.4% | 101.1% | ||
| 2021 | 96 | 95.8% | 97.7% | 100.2% | ||
| 2022 | 69 | 96.1% | 98.3% | 104.0% | ||
| 2023 | 96 | 96.8% | 101.9% | 109.3% | ||
| 2024 | 62 | 96.8% | 101.3% | 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. |
| - Total ammonia as N, unfltd, CFA - |
| Lab: NWQL, PCode: 00610, MCode: CL017 |
| Analysis Dates: 10/22/09 through 09/13/24 |
| Open Data Set |
| Boxplot Description |
| Percent Recovery Statistics for Total ammonia as N, unfltd, CFA |
| Analyte | Parm-meth Code | Water Year | # of Samples |
25th Pctl | 50th Pctl (Median) |
75th Pctl |
|---|---|---|---|---|---|---|
| Total ammonia as N, unfltd, CFA | 00610CL017 | 2010 | 48 | 99.8% | 101.5% | 103.3% |
| 2011 | 48 | 100.5% | 104.0% | 106.0% | ||
| 2012 | 48 | 101.3% | 105.6% | 107.7% | ||
| 2013 | 36 | 101.9% | 103.0% | 104.4% | ||
| 2014 | 17 | 101.2% | 103.1% | 106.5% | ||
| 2015 | 24 | 101.5% | 106.2% | 107.7% | ||
| 2016 | 24 | 100.6% | 104.6% | 107.6% | ||
| 2017 | 24 | 96.4% | 100.4% | 103.8% | ||
| 2019 | 20 | 94.6% | 99.6% | 104.0% | ||
| 2020 | 24 | 96.9% | 99.0% | 102.3% | ||
| 2021 | 24 | 100.0% | 101.7% | 105.4% | ||
| 2022 | 18 | 91.3% | 108.9% | 115.3% | ||
| 2023 | 24 | 91.8% | 101.1% | 116.4% | ||
| 2024 | 15 | 94.3% | 106.6% | 125.5% |
| 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. |
| - Total nitrogen as N, fltd, CFA - |
| Lab: NWQL, PCode: 62854, MCode: CL063 |
| Analysis Dates: 10/01/09 through 09/26/24 |
| Open Data Set |
| Boxplot Description |
| Percent Recovery Statistics for Total nitrogen as N, fltd, CFA |
| Analyte | Parm-meth Code | Water Year | # of Samples |
25th Pctl | 50th Pctl (Median) |
75th Pctl |
|---|---|---|---|---|---|---|
| Total nitrogen as N, fltd, CFA | 62854CL063 | 2009 | 12 | 99.6% | 102.4% | 104.0% |
| 2010 | 144 | 95.9% | 99.0% | 101.4% | ||
| 2011 | 140 | 93.8% | 97.8% | 100.1% | ||
| 2012 | 144 | 96.8% | 100.2% | 103.2% | ||
| 2013 | 108 | 97.2% | 99.2% | 103.0% | ||
| 2014 | 90 | 98.1% | 100.2% | 102.8% | ||
| 2015 | 72 | 97.0% | 99.4% | 102.3% | ||
| 2016 | 72 | 100.6% | 102.7% | 104.2% | ||
| 2017 | 71 | 98.7% | 100.7% | 103.7% | ||
| 2019 | 59 | 93.5% | 97.1% | 100.3% | ||
| 2020 | 71 | 99.0% | 101.7% | 103.8% | ||
| 2021 | 72 | 99.6% | 100.9% | 102.6% | ||
| 2022 | 82 | 97.5% | 101.4% | 104.4% | ||
| 2023 | 86 | 96.8% | 99.8% | 103.0% | ||
| 2024 | 68 | 98.0% | 100.7% | 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. |
| - Total nitrogen as N, unfltd, CFA - |
| Lab: NWQL, PCode: 62855, MCode: AKP01 |
| Analysis Dates: 10/02/09 through 09/27/24 |
| Open Data Set |
| Boxplot Description |
| Percent Recovery Statistics for Total nitrogen as N, unfltd, CFA |
| Analyte | Parm-meth Code | Water Year | # of Samples |
25th Pctl | 50th Pctl (Median) |
75th Pctl |
|---|---|---|---|---|---|---|
| Total nitrogen as N, unfltd, CFA | 62855AKP01 | 2009 | 11 | 95.4% | 97.8% | 99.5% |
| 2010 | 144 | 95.7% | 98.1% | 100.3% | ||
| 2011 | 144 | 94.5% | 97.1% | 99.7% | ||
| 2012 | 144 | 93.8% | 98.3% | 100.6% | ||
| 2013 | 108 | 92.9% | 95.7% | 99.4% | ||
| 2014 | 90 | 97.8% | 99.9% | 102.6% | ||
| 2015 | 72 | 97.3% | 99.5% | 102.8% | ||
| 2016 | 72 | 99.8% | 102.1% | 104.3% | ||
| 2017 | 71 | 96.4% | 99.5% | 103.9% | ||
| 2019 | 59 | 90.2% | 94.7% | 99.6% | ||
| 2020 | 71 | 96.9% | 99.2% | 101.7% | ||
| 2021 | 72 | 98.4% | 100.3% | 102.4% | ||
| 2022 | 82 | 97.8% | 101.4% | 104.1% | ||
| 2023 | 92 | 94.1% | 96.6% | 99.2% | ||
| 2024 | 59 | 95.8% | 98.6% | 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. |