Know Your Environment. Protect Your Health.

Nitrite

San Joaquin County-mokelumne Acres

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.

 

10

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
2019ND30ND
2020ND20ND
2021N/A00N/A
2022ND30ND
2023ND20ND

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
2019-12-09CA3910017_007_007-201912091040ND
2019-12-09CA3910017_008_008-201912091145ND
2019-12-09CA3910017_009_009-201912091110ND
2020-07-15CA3910017_006_006-202007151055ND
2020-07-15CA3910017_003_003-202007151015ND
2022-12-13CA3910017_009_009-202212131030ND
2022-12-13CA3910017_008_008-202212131210ND
2022-12-13CA3910017_007_007-202212131135ND
2023-07-20CA3910017_006_006-202307201215ND
2023-07-20CA3910017_003_003-202307201240ND