Nitrite

Beaumont Cherry Valley WD

Nitrite, closely related to the fertilizer chemical nitrate, comes from urban runoff and from fertilizer applied to agricultural lands to pollute drinking water. Nitrite is significantly more toxic than nitrate. Excessive nitrite in water can cause oxygen deprivation in infants and increase the risk of cancer.

MORE ABOUT THIS CONTAMINANT

Samples

Samples exceeding legal limit (MCL)

Samples exceeding
health guidelines

Testing results - average by year

Year	Average result	Samples taken	Range of results
2013	N/A	0	N/A
2014	N/A	0	N/A
2015	ND	9	ND
2016	ND	6	ND
2017	ND	1	ND
2018	ND	12	ND
2019	ND	3	ND

ppm = parts per million

State and national drinking water standards and health guidelines

EPA Maximum Contaminant
Level (MCL) 1 ppm

The legal limit for nitrite, established in 1991, was based on the rate of conversion of ingested nitrate into nitrite in adults. This limit may not fully protect against the risk of cancer due to nitrite exposure.

ppm = parts per million

All test results

Date	Lab ID	Result
2015-12-02	4790-020-1102	ND
2015-12-02	4790-005-1010	ND
2015-12-02	4790-025-0850	ND
2015-12-02	4790-007-1032	ND
2015-12-02	4790-022-0826	ND
2015-12-02	4790-011-1155	ND
2015-12-02	4790-015-1139	ND
2015-12-02	4790-013-1119	ND
2015-12-03	4790-025-0952	ND
2016-12-01	4790-012-0926	ND
2016-12-01	4790-022-1017	ND
2016-12-01	4790-023-1035	ND
2016-12-01	4790-026-0721	ND
2016-12-08	4790-031-0750	ND
2016-12-08	4790-017-0841	ND
2017-10-02	4790-006-0915	ND
2018-11-28	4790-015-0838	ND
2018-11-28	4790-020-0738	ND
2018-11-28	4790-013-0813	ND
2018-11-28	4790-012-0750	ND
2018-11-28	4790-011-0908	ND
2018-11-28	4790-007-0958	ND
2018-11-28	4790-006-1022	ND
2018-11-28	4790-005-1044	ND
2018-12-13	4790-021-1115	ND
2018-12-18	4790-031-1338	ND
2018-12-18	4790-025-1038	ND
2018-12-18	4790-022-1248	ND
2019-12-04	4790-023-1158	ND
2019-12-04	4790-026-0838	ND
2019-12-04	4790-017-1010	ND