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EWG's Tap Water Database — 2021 UPDATE

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Nitrite

Kern County Water Agency

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.

MORE ABOUT THIS CONTAMINANT

 

61

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND100ND
2015ND40ND
2016ND120ND
2017ND120ND
2018ND110ND
2019ND120ND

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
2014-03-035133-010-1245ND
2014-04-155133-010-1150ND
2014-05-055133-010-1224ND
2014-06-035133-010-1135ND
2014-07-015133-010-1305ND
2014-08-115133-010-1320ND
2014-09-085133-010-1225ND
2014-10-075133-010-0810ND
2014-11-035133-010-1232ND
2014-12-015133-010-1245ND
2015-01-135133-010-1220ND
2015-10-065133-010-1220ND
2015-11-025133-010-1320ND
2015-12-075133-010-1220ND
2016-01-125133-010-1140ND
2016-02-015133-010-1210ND
2016-03-075133-010-1515ND
2016-04-055133-010-1150ND
2016-05-025133-010-1250ND
2016-06-065133-010-1120ND
2016-07-125133-010-1240ND
2016-08-015133-010-1215ND
2016-09-125133-010-1110ND
2016-10-115133-010-1135ND
2016-11-075133-010-1215ND
2016-12-055133-010-1250ND
2017-01-105133-010-1125ND
2017-02-065133-010-1415ND
2017-03-075133-010-1200ND
2017-04-055133-010-1220ND
2017-05-015133-010-1335ND
2017-06-055133-010-1240ND
2017-07-115133-010-0820ND
2017-08-075133-010-1300ND
2017-09-115133-010-1225ND
2017-10-105133-010-1055ND
2017-11-135133-010-1325ND
2017-12-045133-010-1235ND
2018-01-165133-010-1115ND
2018-02-055133-010-1250ND
2018-03-055133-010-1240ND
2018-04-175133-010-1425ND
2018-05-075133-010-1245ND
2018-06-045133-010-1300ND
2018-07-175133-010-1110ND
2018-07-175133-010-1120ND
2018-08-065133-010-1055ND
2018-11-055133-010-1200ND
2018-12-035133-010-1115ND
2019-01-085133-010-1125ND
2019-02-045133-010-1230ND
2019-03-045133-010-1130ND
2019-04-165133-010-1300ND
2019-05-205133-010-1040ND
2019-06-105133-010-1045ND
2019-07-165133-010-1105ND
2019-08-065133-010-1115ND
2019-09-095133-010-1040ND
2019-10-155133-010-0835ND
2019-11-115133-010-1244ND
2019-12-025133-010-1232ND