Know Your Environment. Protect Your Health.

Nitrite

California Water Service Company Oak Hills

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.

 

11

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND10ND
2019ND30ND
2020ND10ND
2021ND20ND
2022ND30ND
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
2018-03-21CA2710019_001_001-201803211040ND
2019-03-20CA2710019_001_001-201903201055ND
2019-06-19CA2710019_008_008-201906191328ND
2019-09-12CA2710019_003_003-201909121359ND
2020-03-26CA2710019_001_001-202003261106ND
2021-06-29CA2710019_001_001-202106291345ND
2021-09-22CA2710019_001_001-202109221101ND
2022-03-30CA2710019_001_001-202203301352ND
2022-06-22CA2710019_008_008-202206221336ND
2022-09-22CA2710019_003_003-202209221415ND
2023-05-08CA2710019_001_001-202305081020ND