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EWG's Tap Water Database — 2021 UPDATE

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Nitrite

Golden State Water Company - Ojai

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.

 

20

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND10ND
2015ND60ND
2016N/A00N/A
2017ND50ND
2018ND70ND
2019ND10ND

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
2014-10-012706-015-0955ND
2015-01-072706-007-0900ND
2015-01-072706-010-0920ND
2015-01-142706-003-0925ND
2015-01-142706-004-0940ND
2015-01-212706-015-0945ND
2015-06-102706-002-1220ND
2017-06-215867-003-1155ND
2017-06-215867-004-1202ND
2017-06-215867-015-1200ND
2017-06-215867-007-1140ND
2017-06-215867-010-1147ND
2018-01-255867-007-1102ND
2018-01-255867-015-1153ND
2018-01-255867-010-1134ND
2018-01-255867-004-1205ND
2018-01-255867-003-1033ND
2018-01-255867-002-1119ND
2018-11-065867-016-0953ND
2019-10-145867-016-1109ND