Blind Blank Charts

- Ammonia (NH3 + NH4+; as N), fltd, EPA -

Blind Blank Results

Lab: NWQL, PCode: 00608, MCode: CL036

Analysis dates: 10/09/09 through 03/08/13

False Positive Rate for Ammonia (NH3 + NH4+; as N), fltd, EPA

parmdesc	Pcode Mcode	Water Year	# of Samples	# of False Pos.	*False Positive Rate
Ammonia (NH3 + NH4+; as N), fltd, EPA	00608CL036	2010	52	0	0%
		2011	52	0	0%
		2012	52	0	0%
		2013	20	0	0%
*Highlighted if false positive rate > 5 %

Hover over any data point for detailed info.

Chart generated 03/27/2025

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- Nitrate + nitrite as N, fltd, DA -

Blind Blank Results

Lab: NWQL, PCode: 00631, MCode: RED01

Analysis dates: 10/20/11 through 09/25/24

parmdesc	Pcode Mcode	Water Year	# of Samples	# of False Pos.	*False Positive Rate
Nitrate + nitrite as N, fltd, DA	00631RED01	2012	50	3	6%
		2013	53	2	4%
		2014	47	1	2%
		2015	52	3	6%
		2016	51	1	2%
		2017	51	1	2%
		2018	51	1	2%
		2019	46	0	0%
		2020	48	1	2%
		2021	48	0	0%
		2022	48	0	0%
		2023	48	0	0%
		2024	46	0	0%
*Highlighted if false positive rate > 5 %

parmdesc	Pcode Mcode	Water Year	# of Samples	# of False Pos.	*False Positive Rate
Nitrate + nitrite as N, fltd, DA, LL	00631RED02	2012	50	3	6%
		2013	53	1	2%
		2014	47	3	6%
		2015	52	4	8%
		2016	51	2	4%
		2017	51	3	6%
		2018	51	1	2%
		2019	46	0	0%
		2020	48	0	0%
		2021	48	2	4%
		2022	48	2	4%
		2023	48	2	4%
		2024	47	2	4%
*Highlighted if false positive rate > 5 %

parmdesc	Pcode Mcode	Water Year	# of Samples	# of False Pos.	*False Positive Rate
Nitrate + nitrite as N, fltd, EPA	00631CL047	2010	52	0	0%
		2011	52	0	0%
		2012	44	2	5%
		2013	20	0	0%
*Highlighted if false positive rate > 5 %

parmdesc	Pcode Mcode	Water Year	# of Samples	# of False Pos.	*False Positive Rate
Nitrate plus Nitrite (as N), FIL, COL	00631CL048	2010	52	1	2%
		2011	52	2	4%
		2012	2	0	0%
*Highlighted if false positive rate > 5 %

parmdesc	Pcode Mcode	Water Year	# of Samples	# of False Pos.	*False Positive Rate
Nitrate plus Nitrite (as N), FIL, COL, LL	00631CL050	2009	3	1	33%
		2010	52	1	2%
		2011	52	0	0%
		2012	2	0	0%
*Highlighted if false positive rate > 5 %

parmdesc	Pcode Mcode	Water Year	# of Samples	# of False Pos.	*False Positive Rate
Nitrite as N, fltd, COL	00613DZ001	2009	2	0	0%
		2010	52	1	2%
		2011	52	1	2%
		2012	52	3	6%
		2013	53	0	0%
		2014	55	0	0%
		2015	58	2	3%
		2016	51	2	4%
		2017	51	0	0%
		2018	51	0	0%
		2019	46	2	4%
		2020	48	0	0%
		2021	48	0	0%
		2022	48	2	4%
		2023	48	0	0%
		2024	45	1	2%
*Highlighted if false positive rate > 5 %

parmdesc	Pcode Mcode	Water Year	# of Samples	# of False Pos.	*False Positive Rate
Orthophosphate as P, fltd, DA	00671PHM01	2009	2	0	0%
		2010	52	1	2%
		2011	52	1	2%
		2012	52	0	0%
		2013	53	0	0%
		2014	55	1	2%
		2015	58	0	0%
		2016	51	1	2%
		2017	51	1	2%
		2018	51	1	2%
		2019	46	2	4%
		2020	48	2	4%
		2021	48	0	0%
		2022	48	0	0%
		2023	48	1	2%
		2024	44	0	0%
*Highlighted if false positive rate > 5 %

parmdesc	Pcode Mcode	Water Year	# of Samples	# of False Pos.	*False Positive Rate
Phosphorus as P, fltd, CFA	00666CL062	2009	3	0	0%
		2010	52	0	0%
		2011	41	0	0%
*Highlighted if false positive rate > 5 %

parmdesc	Pcode Mcode	Water Year	# of Samples	# of False Pos.	*False Positive Rate
Phosphorus as P, fltd, CFA	00666CL063	2009	4	1	25%
		2010	52	0	0%
		2011	52	0	0%
		2012	52	1	2%
		2013	53	1	2%
		2014	47	0	0%
		2015	52	1	2%
		2016	51	2	4%
		2017	51	0	0%
		2018	51	0	0%
		2019	46	1	2%
		2020	47	1	2%
		2021	47	3	6%
		2022	48	1	2%
		2023	42	1	2%
		2024	33	0	0%
*Highlighted if false positive rate > 5 %

parmdesc	Pcode Mcode	Water Year	# of Samples	# of False Pos.	*False Positive Rate
Phosphorus as P, fltd, CFA	00666KJ005	2009	1	0	0%
		2010	52	0	0%
		2011	52	1	2%
		2012	52	0	0%
		2013	53	0	0%
		2014	47	1	2%
		2015	52	0	0%
		2016	51	0	0%
		2017	51	1	2%
		2018	51	0	0%
		2019	46	0	0%
		2020	48	0	0%
		2021	48	0	0%
		2022	47	1	2%
		2023	48	1	2%
		2024	46	2	4%
*Highlighted if false positive rate > 5 %

parmdesc	Pcode Mcode	Water Year	# of Samples	# of False Pos.	*False Positive Rate
Phosphorus as P, fltd, CFA, LL, EPA	00666CL019	2010	52	0	0%
		2011	52	1	2%
		2012	52	0	0%
		2013	53	1	2%
		2014	5	0	0%
*Highlighted if false positive rate > 5 %

parmdesc	Pcode Mcode	Water Year	# of Samples	# of False Pos.	*False Positive Rate
Phosphorus as P, fltd, CFA, LL, EPA	00666CL020	2009	2	0	0%
		2010	52	0	0%
		2011	52	3	6%
		2012	52	0	0%
		2013	53	2	4%
		2014	47	2	4%
		2015	52	1	2%
		2016	51	0	0%
		2017	51	0	0%
		2018	51	0	0%
		2019	46	0	0%
		2020	48	2	4%
		2021	48	0	0%
		2022	48	0	0%
		2023	48	3	6%
		2024	36	5	14%
*Highlighted if false positive rate > 5 %

parmdesc	Pcode Mcode	Water Year	# of Samples	# of False Pos.	*False Positive Rate
Phosphorus as P, unfltd, CFA	00665AKP01	2009	4	0	0%
		2010	52	0	0%
		2011	52	0	0%
		2012	52	3	6%
		2013	53	1	2%
		2014	47	0	0%
		2015	52	1	2%
		2016	51	5	10%
		2017	51	1	2%
		2018	51	1	2%
		2019	46	3	7%
		2020	48	2	4%
		2021	48	3	6%
		2022	48	5	10%
		2023	45	3	7%
		2024	29	1	3%
*Highlighted if false positive rate > 5 %

parmdesc	Pcode Mcode	Water Year	# of Samples	# of False Pos.	*False Positive Rate
Phosphorus as P, unfltd, CFA	00665KJ009	2013	33	1	3%
		2014	47	0	0%
		2015	52	1	2%
		2016	51	1	2%
		2017	51	0	0%
		2018	51	1	2%
		2019	46	0	0%
		2020	48	0	0%
		2021	48	0	0%
		2022	48	1	2%
		2023	48	5	10%
		2024	44	3	7%
*Highlighted if false positive rate > 5 %

parmdesc	Pcode Mcode	Water Year	# of Samples	# of False Pos.	*False Positive Rate
Phosphorus as P, unfltd, CFA, LL, EPA	00665CL021	2009	3	0	0%
		2014	42	0	0%
		2015	52	1	2%
		2016	51	2	4%
		2017	51	4	8%
		2018	51	0	0%
		2019	46	0	0%
		2020	48	0	0%
		2021	48	1	2%
		2022	48	4	8%
		2023	48	2	4%
		2024	33	2	6%
*Highlighted if false positive rate > 5 %

parmdesc	Pcode Mcode	Water Year	# of Samples	# of False Pos.	*False Positive Rate
Total Nitrogen (NH3+NO3+NO2 plus org N), fltd, CFA	62854CL062	2009	3	0	0%
		2010	52	0	0%
		2011	41	0	0%
*Highlighted if false positive rate > 5 %

parmdesc	Pcode Mcode	Water Year	# of Samples	# of False Pos.	*False Positive Rate
Total ammonia + organic nitrogen as N, fltd, CFA	00623KJ002	2009	1	0	0%
		2010	52	5	10%
		2011	52	1	2%
		2012	52	0	0%
		2013	53	2	4%
		2014	47	2	4%
		2015	52	2	4%
		2016	51	2	4%
		2017	51	0	0%
		2018	51	1	2%
		2019	46	2	4%
		2020	48	0	0%
		2021	48	0	0%
		2022	47	4	9%
		2023	48	2	4%
		2024	46	2	4%
*Highlighted if false positive rate > 5 %

parmdesc	Pcode Mcode	Water Year	# of Samples	# of False Pos.	*False Positive Rate
Total ammonia + organic nitrogen as N, unfltd, CFA	00625KJ008	2013	33	0	0%
		2014	47	0	0%
		2015	52	1	2%
		2016	51	0	0%
		2017	51	1	2%
		2018	51	0	0%
		2019	46	1	2%
		2020	48	1	2%
		2021	48	0	0%
		2022	48	4	8%
		2023	48	4	8%
		2024	45	4	9%
*Highlighted if false positive rate > 5 %

parmdesc	Pcode Mcode	Water Year	# of Samples	# of False Pos.	*False Positive Rate
Total ammonia as N, fltd, DA	00608SHC02	2009	2	0	0%
		2010	52	4	8%
		2011	52	1	2%
		2012	52	6	12%
		2013	53	3	6%
		2014	55	4	7%
		2015	58	3	5%
		2016	51	3	6%
		2017	51	1	2%
		2018	51	0	0%
		2019	46	3	7%
		2020	48	3	6%
		2021	48	1	2%
		2022	48	1	2%
		2023	48	0	0%
		2024	45	0	0%
*Highlighted if false positive rate > 5 %

parmdesc	Pcode Mcode	Water Year	# of Samples	# of False Pos.	*False Positive Rate
Total ammonia as N, unfltd, CFA	00610CL017	2009	1	0	0%
		2015	22	0	0%
		2016	51	0	0%
		2017	51	2	4%
		2018	51	0	0%
		2019	46	0	0%
		2020	48	2	4%
		2021	48	2	4%
		2022	47	2	4%
		2023	48	0	0%
		2024	44	4	9%
*Highlighted if false positive rate > 5 %

parmdesc	Pcode Mcode	Water Year	# of Samples	# of False Pos.	*False Positive Rate
Total nitrogen as N, fltd, CFA	62854CL063	2009	4	0	0%
		2010	52	0	0%
		2011	52	1	2%
		2012	52	1	2%
		2013	53	0	0%
		2014	47	0	0%
		2015	52	1	2%
		2016	51	0	0%
		2017	51	2	4%
		2018	51	1	2%
		2019	46	0	0%
		2020	48	0	0%
		2021	48	1	2%
		2022	48	1	2%
		2023	43	2	5%
		2024	33	0	0%
*Highlighted if false positive rate > 5 %

parmdesc	Pcode Mcode	Water Year	# of Samples	# of False Pos.	*False Positive Rate
Total nitrogen as N, unfltd, CFA	62855AKP01	2009	4	0	0%
		2010	52	0	0%
		2011	52	0	0%
		2012	44	1	2%
		2013	53	2	4%
		2014	47	0	0%
		2015	52	0	0%
		2016	51	3	6%
		2017	51	0	0%
		2018	51	2	4%
		2019	46	1	2%
		2020	48	2	4%
		2021	48	1	2%
		2022	48	3	6%
		2023	45	5	11%
		2024	28	2	7%
*Highlighted if false positive rate > 5 %