Know Your Environment. Protect Your Health.

Nitrite

Ventura County Waterworks District No. 19 - Somis

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.

 

19

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND30ND
2019ND30ND
2020ND30ND
2021ND30ND
2022ND30ND
2023ND40ND

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
2018-08-01CA5610015_002_002-201808011404ND
2018-08-01CA5610015_007_007-201808011337ND
2018-08-14CA5610015_001_001-201808141147ND
2019-08-07CA5610015_002_002-201908071345ND
2019-08-07CA5610015_001_001-201908071409ND
2019-08-07CA5610015_007_007-201908071317ND
2020-08-03CA5610015_007_007-202008031556ND
2020-08-04CA5610015_002_002-202008041411ND
2020-08-04CA5610015_001_001-202008041455ND
2021-08-04CA5610015_001_001-202108041007ND
2021-08-04CA5610015_002_002-202108040830ND
2021-08-04CA5610015_007_007-202108040940ND
2022-08-16CA5610015_002_002-202208160933ND
2022-08-17CA5610015_007_007-202208170841ND
2022-08-22CA5610015_001_001-202208221052ND
2023-08-08CA5610015_001_001-202308081445ND
2023-08-08CA5610015_002_002-202308081515ND
2023-08-09CA5610015_007_007-202308090930ND
2023-08-14CA5610015_001_001-202308141100ND