Know Your Environment. Protect Your Health.

Nitrite

Valley Utilities Water Company Glendale

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.

 

14

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND40ND
2019ND40ND
2020N/A00N/A
2021ND50ND
2022N/A00N/A
2023ND10ND

ppm = parts per million

State, National, and Health Guidelines for Drinking Water

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
2018-01-0918A0866-03ND
2018-01-0918A0866-13ND
2018-05-0818E0834-04ND
2018-05-0818E0834-13ND
2019-02-1219B1166-04ND
2019-02-1219B1166-14ND
2019-03-1919C1938-04ND
2019-05-1419E1547-14ND
2021-03-03202103040010IND
2021-03-03202103040011IND
2021-03-03202103040012IND
2021-03-11202103120008IND
2021-11-18202111190087IND
2023-02-02380-36417-3ND