| - Nitrate + nitrite as N, fltd, DA - |
| Blind Blank Results |
| Lab: NWQL, PCode: 00631, MCode: RED01 |
| Analysis dates: 10/02/19 through 11/26/24 |
| Open Data Set |
| - Nitrate + nitrite as N, fltd, DA - |
| Blind Blank Results |
| Lab: NWQL, PCode: 00631, MCode: RED01 |
| Analysis dates: 10/02/19 through 11/26/24 |
| Open Data Set |
| False Positive Rate for Nitrate + nitrite as N, fltd, DA |
| parmdesc | Pcode Mcode |
Water Year | # of Samples |
# of False Pos. |
*False Positive Rate |
|---|---|---|---|---|---|
| Nitrate + nitrite as N, fltd, DA | 00631RED01 | 2019 | 1 | 0 | 0% |
| 2020 | 48 | 1 | 2% | ||
| 2021 | 48 | 0 | 0% | ||
| 2022 | 48 | 0 | 0% | ||
| 2023 | 48 | 0 | 0% | ||
| 2024 | 48 | 0 | 0% | ||
| 2025 | 7 | 0 | 0% | ||
| *Highlighted if false positive rate > 5 % | |||||
| Hover over any data point for detailed info. |
| Chart generated 01/02/2025 |
| 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 - |
| Blind Blank Results |
| Lab: NWQL, PCode: 00631, MCode: RED02 |
| Analysis dates: 10/09/19 through 11/25/24 |
| Open Data Set |
| False Positive Rate for Nitrate + nitrite as N, fltd, DA, LL |
| parmdesc | Pcode Mcode |
Water Year | # of Samples |
# of False Pos. |
*False Positive Rate |
|---|---|---|---|---|---|
| Nitrate + nitrite as N, fltd, DA, LL | 00631RED02 | 2020 | 48 | 0 | 0% |
| 2021 | 48 | 2 | 4% | ||
| 2022 | 48 | 2 | 4% | ||
| 2023 | 48 | 2 | 4% | ||
| 2024 | 49 | 3 | 6% | ||
| 2025 | 7 | 0 | 0% | ||
| *Highlighted if false positive rate > 5 % | |||||
| Hover over any data point for detailed info. |
| Chart generated 01/02/2025 |
| 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. |
| - Nitrite as N, fltd, COL - |
| Blind Blank Results |
| Lab: NWQL, PCode: 00613, MCode: DZ001 |
| Analysis dates: 10/04/19 through 11/26/24 |
| Open Data Set |
| False Positive Rate for Nitrite as N, fltd, COL |
| parmdesc | Pcode Mcode |
Water Year | # of Samples |
# of False Pos. |
*False Positive Rate |
|---|---|---|---|---|---|
| Nitrite as N, fltd, COL | 00613DZ001 | 2019 | 1 | 0 | 0% |
| 2020 | 48 | 0 | 0% | ||
| 2021 | 48 | 0 | 0% | ||
| 2022 | 48 | 2 | 4% | ||
| 2023 | 48 | 0 | 0% | ||
| 2024 | 48 | 1 | 2% | ||
| 2025 | 7 | 0 | 0% | ||
| *Highlighted if false positive rate > 5 % | |||||
| Hover over any data point for detailed info. |
| Chart generated 01/02/2025 |
| 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 - |
| Blind Blank Results |
| Lab: NWQL, PCode: 00671, MCode: PHM01 |
| Analysis dates: 10/04/19 through 11/26/24 |
| Open Data Set |
| False Positive Rate for Orthophosphate as P, fltd, DA |
| parmdesc | Pcode Mcode |
Water Year | # of Samples |
# of False Pos. |
*False Positive Rate |
|---|---|---|---|---|---|
| Orthophosphate as P, fltd, DA | 00671PHM01 | 2019 | 1 | 0 | 0% |
| 2020 | 48 | 2 | 4% | ||
| 2021 | 48 | 0 | 0% | ||
| 2022 | 48 | 0 | 0% | ||
| 2023 | 48 | 1 | 2% | ||
| 2024 | 47 | 0 | 0% | ||
| 2025 | 7 | 0 | 0% | ||
| *Highlighted if false positive rate > 5 % | |||||
| Hover over any data point for detailed info. |
| Chart generated 01/02/2025 |
| 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 - |
| Blind Blank Results |
| Lab: NWQL, PCode: 00666, MCode: CL063 |
| Analysis dates: 10/09/19 through 11/27/24 |
| Open Data Set |
| False Positive Rate for Phosphorus as P, fltd, CFA |
| parmdesc | Pcode Mcode |
Water Year | # of Samples |
# of False Pos. |
*False Positive Rate |
|---|---|---|---|---|---|
| Phosphorus as P, fltd, CFA | 00666CL063 | 2019 | 1 | 0 | 0% |
| 2020 | 47 | 1 | 2% | ||
| 2021 | 47 | 3 | 6% | ||
| 2022 | 48 | 1 | 2% | ||
| 2023 | 42 | 1 | 2% | ||
| 2024 | 35 | 0 | 0% | ||
| 2025 | 6 | 0 | 0% | ||
| *Highlighted if false positive rate > 5 % | |||||
| Hover over any data point for detailed info. |
| Chart generated 01/02/2025 |
| 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 - |
| Blind Blank Results |
| Lab: NWQL, PCode: 00666, MCode: KJ005 |
| Analysis dates: 10/03/19 through 11/22/24 |
| Open Data Set |
| False Positive Rate for Phosphorus as P, fltd, CFA |
| parmdesc | Pcode Mcode |
Water Year | # of Samples |
# of False Pos. |
*False Positive Rate |
|---|---|---|---|---|---|
| Phosphorus as P, fltd, CFA | 00666KJ005 | 2019 | 2 | 0 | 0% |
| 2020 | 48 | 0 | 0% | ||
| 2021 | 48 | 0 | 0% | ||
| 2022 | 47 | 1 | 2% | ||
| 2023 | 48 | 1 | 2% | ||
| 2024 | 47 | 2 | 4% | ||
| 2025 | 7 | 1 | 14% | ||
| *Highlighted if false positive rate > 5 % | |||||
| Hover over any data point for detailed info. |
| Chart generated 01/02/2025 |
| 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 - |
| Blind Blank Results |
| Lab: NWQL, PCode: 00666, MCode: CL020 |
| Analysis dates: 10/01/19 through 12/09/24 |
| Open Data Set |
| False Positive Rate for Phosphorus as P, fltd, CFA, LL, EPA |
| parmdesc | Pcode Mcode |
Water Year | # of Samples |
# of False Pos. |
*False Positive Rate |
|---|---|---|---|---|---|
| Phosphorus as P, fltd, CFA, LL, EPA | 00666CL020 | 2019 | 1 | 0 | 0% |
| 2020 | 48 | 2 | 4% | ||
| 2021 | 48 | 0 | 0% | ||
| 2022 | 48 | 0 | 0% | ||
| 2023 | 48 | 3 | 6% | ||
| 2024 | 40 | 5 | 13% | ||
| 2025 | 7 | 0 | 0% | ||
| *Highlighted if false positive rate > 5 % | |||||
| Hover over any data point for detailed info. |
| Chart generated 01/02/2025 |
| 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 - |
| Blind Blank Results |
| Lab: NWQL, PCode: 00665, MCode: AKP01 |
| Analysis dates: 10/02/19 through 11/27/24 |
| Open Data Set |
| False Positive Rate for Phosphorus as P, unfltd, CFA |
| parmdesc | Pcode Mcode |
Water Year | # of Samples |
# of False Pos. |
*False Positive Rate |
|---|---|---|---|---|---|
| Phosphorus as P, unfltd, CFA | 00665AKP01 | 2019 | 2 | 1 | 50% |
| 2020 | 48 | 2 | 4% | ||
| 2021 | 48 | 3 | 6% | ||
| 2022 | 48 | 5 | 10% | ||
| 2023 | 45 | 3 | 7% | ||
| 2024 | 32 | 1 | 3% | ||
| 2025 | 5 | 0 | 0% | ||
| *Highlighted if false positive rate > 5 % | |||||
| Hover over any data point for detailed info. |
| Chart generated 01/02/2025 |
| 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 - |
| Blind Blank Results |
| Lab: NWQL, PCode: 00665, MCode: KJ009 |
| Analysis dates: 10/02/19 through 11/25/24 |
| Open Data Set |
| False Positive Rate for Phosphorus as P, unfltd, CFA |
| parmdesc | Pcode Mcode |
Water Year | # of Samples |
# of False Pos. |
*False Positive Rate |
|---|---|---|---|---|---|
| Phosphorus as P, unfltd, CFA | 00665KJ009 | 2019 | 2 | 0 | 0% |
| 2020 | 48 | 0 | 0% | ||
| 2021 | 48 | 0 | 0% | ||
| 2022 | 48 | 1 | 2% | ||
| 2023 | 48 | 5 | 10% | ||
| 2024 | 46 | 3 | 7% | ||
| 2025 | 6 | 0 | 0% | ||
| *Highlighted if false positive rate > 5 % | |||||
| Hover over any data point for detailed info. |
| Chart generated 01/02/2025 |
| 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 - |
| Blind Blank Results |
| Lab: NWQL, PCode: 00665, MCode: CL021 |
| Analysis dates: 10/01/19 through 12/12/24 |
| Open Data Set |
| False Positive Rate for Phosphorus as P, unfltd, CFA, LL, EPA |
| parmdesc | Pcode Mcode |
Water Year | # of Samples |
# of False Pos. |
*False Positive Rate |
|---|---|---|---|---|---|
| Phosphorus as P, unfltd, CFA, LL, EPA | 00665CL021 | 2019 | 1 | 0 | 0% |
| 2020 | 48 | 0 | 0% | ||
| 2021 | 48 | 1 | 2% | ||
| 2022 | 48 | 4 | 8% | ||
| 2023 | 48 | 2 | 4% | ||
| 2024 | 37 | 2 | 5% | ||
| 2025 | 5 | 0 | 0% | ||
| *Highlighted if false positive rate > 5 % | |||||
| Hover over any data point for detailed info. |
| Chart generated 01/02/2025 |
| 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 - |
| Blind Blank Results |
| Lab: NWQL, PCode: 00623, MCode: KJ002 |
| Analysis dates: 10/03/19 through 11/22/24 |
| Open Data Set |
| False Positive Rate for Total ammonia + organic nitrogen as N, fltd, CFA |
| parmdesc | Pcode Mcode |
Water Year | # of Samples |
# of False Pos. |
*False Positive Rate |
|---|---|---|---|---|---|
| Total ammonia + organic nitrogen as N, fltd, CFA | 00623KJ002 | 2019 | 2 | 0 | 0% |
| 2020 | 48 | 0 | 0% | ||
| 2021 | 48 | 0 | 0% | ||
| 2022 | 47 | 4 | 9% | ||
| 2023 | 48 | 2 | 4% | ||
| 2024 | 47 | 2 | 4% | ||
| 2025 | 7 | 0 | 0% | ||
| *Highlighted if false positive rate > 5 % | |||||
| Hover over any data point for detailed info. |
| Chart generated 01/02/2025 |
| 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 - |
| Blind Blank Results |
| Lab: NWQL, PCode: 00625, MCode: KJ008 |
| Analysis dates: 10/02/19 through 11/25/24 |
| Open Data Set |
| False Positive Rate for Total ammonia + organic nitrogen as N, unfltd, CFA |
| parmdesc | Pcode Mcode |
Water Year | # of Samples |
# of False Pos. |
*False Positive Rate |
|---|---|---|---|---|---|
| Total ammonia + organic nitrogen as N, unfltd, CFA | 00625KJ008 | 2019 | 2 | 0 | 0% |
| 2020 | 48 | 1 | 2% | ||
| 2021 | 48 | 0 | 0% | ||
| 2022 | 48 | 4 | 8% | ||
| 2023 | 48 | 4 | 8% | ||
| 2024 | 46 | 4 | 9% | ||
| 2025 | 6 | 0 | 0% | ||
| *Highlighted if false positive rate > 5 % | |||||
| Hover over any data point for detailed info. |
| Chart generated 01/02/2025 |
| 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 - |
| Blind Blank Results |
| Lab: NWQL, PCode: 00608, MCode: SHC02 |
| Analysis dates: 10/04/19 through 11/26/24 |
| Open Data Set |
| False Positive Rate for Total ammonia as N, fltd, DA |
| parmdesc | Pcode Mcode |
Water Year | # of Samples |
# of False Pos. |
*False Positive Rate |
|---|---|---|---|---|---|
| Total ammonia as N, fltd, DA | 00608SHC02 | 2019 | 1 | 0 | 0% |
| 2020 | 48 | 3 | 6% | ||
| 2021 | 48 | 1 | 2% | ||
| 2022 | 48 | 1 | 2% | ||
| 2023 | 48 | 0 | 0% | ||
| 2024 | 48 | 0 | 0% | ||
| 2025 | 7 | 0 | 0% | ||
| *Highlighted if false positive rate > 5 % | |||||
| Hover over any data point for detailed info. |
| Chart generated 01/02/2025 |
| 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 - |
| Blind Blank Results |
| Lab: NWQL, PCode: 00610, MCode: CL017 |
| Analysis dates: 11/01/19 through 12/02/24 |
| Open Data Set |
| False Positive Rate for Total ammonia as N, unfltd, CFA |
| parmdesc | Pcode Mcode |
Water Year | # of Samples |
# of False Pos. |
*False Positive Rate |
|---|---|---|---|---|---|
| Total ammonia as N, unfltd, CFA | 00610CL017 | 2019 | 4 | 0 | 0% |
| 2020 | 48 | 2 | 4% | ||
| 2021 | 48 | 2 | 4% | ||
| 2022 | 47 | 2 | 4% | ||
| 2023 | 48 | 0 | 0% | ||
| 2024 | 48 | 5 | 10% | ||
| 2025 | 6 | 2 | 33% | ||
| *Highlighted if false positive rate > 5 % | |||||
| Hover over any data point for detailed info. |
| Chart generated 01/02/2025 |
| 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 - |
| Blind Blank Results |
| Lab: NWQL, PCode: 62854, MCode: CL063 |
| Analysis dates: 10/09/19 through 11/27/24 |
| Open Data Set |
| False Positive Rate for Total nitrogen as N, fltd, CFA |
| parmdesc | Pcode Mcode |
Water Year | # of Samples |
# of False Pos. |
*False Positive Rate |
|---|---|---|---|---|---|
| Total nitrogen as N, fltd, CFA | 62854CL063 | 2019 | 1 | 0 | 0% |
| 2020 | 48 | 0 | 0% | ||
| 2021 | 48 | 1 | 2% | ||
| 2022 | 48 | 1 | 2% | ||
| 2023 | 43 | 2 | 5% | ||
| 2024 | 36 | 0 | 0% | ||
| 2025 | 6 | 0 | 0% | ||
| *Highlighted if false positive rate > 5 % | |||||
| Hover over any data point for detailed info. |
| Chart generated 01/02/2025 |
| 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 - |
| Blind Blank Results |
| Lab: NWQL, PCode: 62855, MCode: AKP01 |
| Analysis dates: 10/02/19 through 11/27/24 |
| Open Data Set |
| False Positive Rate for Total nitrogen as N, unfltd, CFA |
| parmdesc | Pcode Mcode |
Water Year | # of Samples |
# of False Pos. |
*False Positive Rate |
|---|---|---|---|---|---|
| Total nitrogen as N, unfltd, CFA | 62855AKP01 | 2019 | 2 | 0 | 0% |
| 2020 | 48 | 2 | 4% | ||
| 2021 | 48 | 1 | 2% | ||
| 2022 | 48 | 3 | 6% | ||
| 2023 | 46 | 6 | 13% | ||
| 2024 | 32 | 2 | 6% | ||
| 2025 | 5 | 0 | 0% | ||
| *Highlighted if false positive rate > 5 % | |||||
| Hover over any data point for detailed info. |
| Chart generated 01/02/2025 |
| 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. |