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EWG's Tap Water Database — 2021 UPDATE

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Nitrite

Valencia Water Company

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

 

133

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014ND220ND
2015ND210ND
2016ND240ND
2017ND240ND
2018ND220ND
2019ND200ND

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
2014-07-029590-021-0800ND
2014-07-029590-052-0800ND
2014-07-029590-062-0835ND
2014-07-099590-005-0800ND
2014-07-099590-018-0810ND
2014-07-099590-024-0925ND
2014-07-099590-026-0845ND
2014-07-099590-058-0850ND
2014-07-169590-017-1120ND
2014-07-169590-025-0910ND
2014-07-169590-046-1030ND
2014-07-169590-049-0800ND
2014-07-169590-051-0830ND
2014-07-169590-070-0945ND
2014-07-239590-003-0815ND
2014-07-239590-004-0930ND
2014-07-239590-047-0900ND
2014-07-239590-048-0900ND
2014-07-239590-073-0945ND
2014-08-079590-021-0830ND
2014-08-079590-052-0940ND
2014-08-079590-062-0900ND
2015-02-199590-047-0845ND
2015-07-099590-021-1000ND
2015-07-099590-052-0830ND
2015-07-099590-062-0930ND
2015-07-169590-005-0955ND
2015-07-169590-018-0915ND
2015-07-169590-024-0830ND
2015-07-169590-026-0925ND
2015-07-169590-058-0942ND
2015-07-239590-017-1104ND
2015-07-239590-025-0932ND
2015-07-239590-046-0945ND
2015-07-239590-049-1002ND
2015-07-239590-051-1034ND
2015-07-239590-070-1015ND
2015-07-309590-003-0810ND
2015-07-309590-004-0955ND
2015-07-309590-047-1015ND
2015-07-309590-048-0915ND
2015-07-309590-073-0840ND
2015-11-199590-047-1027ND
2016-02-119590-024-0904ND
2016-02-119590-026-0916ND
2016-02-189590-025-0939ND
2016-02-189590-046-0902ND
2016-05-269590-047-0929ND
2016-07-149590-005-0832ND
2016-07-149590-018-0852ND
2016-07-149590-021-1014ND
2016-07-149590-024-0803ND
2016-07-149590-026-0816ND
2016-07-149590-052-1001ND
2016-07-149590-058-0913ND
2016-07-149590-062-1024ND
2016-07-219590-017-0955ND
2016-07-219590-046-0902ND
2016-07-219590-051-1018ND
2016-07-219590-070-0923ND
2016-07-289590-003-0906ND
2016-07-289590-004-1007ND
2016-07-289590-025-1105ND
2016-07-289590-047-1016ND
2016-07-289590-048-1030ND
2016-07-289590-049-0946ND
2016-07-289590-073-0926ND
2017-05-119590-024-0815ND
2017-05-119590-026-0825ND
2017-07-069588-021-0910ND
2017-07-069588-052-0940ND
2017-07-069588-062-0920ND
2017-07-139588-005-0839ND
2017-07-139588-018-0851ND
2017-07-139588-024-0808ND
2017-07-139588-026-0819ND
2017-07-139588-058-0906ND
2017-07-209588-017-1010ND
2017-07-209588-025-0905ND
2017-07-209588-046-0920ND
2017-07-209588-049-0955ND
2017-07-209588-051-1030ND
2017-07-209588-070-0940ND
2017-07-279588-003-0845ND
2017-07-279588-004-0825ND
2017-07-279588-047-0820ND
2017-07-279588-048-0945ND
2017-07-279588-073-0750ND
2017-11-029590-024-1020ND
2017-11-029590-026-1215ND
2017-11-029590-052-0920ND
2018-02-089590-024-0830ND
2018-02-089590-026-0840ND
2018-02-229590-004-1025ND
2018-02-229590-047-1015ND
2018-07-059590-021-0947ND
2018-07-059590-052-1020ND
2018-07-059590-062-1000ND
2018-07-129590-005-0820ND
2018-07-129590-018-0835ND
2018-07-129590-024-0800ND
2018-07-129590-026-0810ND
2018-07-129590-058-0845ND
2018-07-199590-017-0935ND
2018-07-199590-025-0750ND
2018-07-199590-046-0825ND
2018-07-199590-049-0850ND
2018-07-199590-051-0905ND
2018-07-199590-070-0805ND
2018-07-269590-003-0910ND
2018-07-269590-004-1010ND
2018-07-269590-047-0955ND
2018-07-269590-073-0850ND
2019-07-109590-005-1045ND
2019-07-109590-018-1115ND
2019-07-109590-024-0910ND
2019-07-109590-026-0945ND
2019-07-109590-058-1140ND
2019-07-119590-021-0925ND
2019-07-119590-052-1045ND
2019-07-119590-062-1000ND
2019-07-179590-017-0910ND
2019-07-179590-025-0840ND
2019-07-179590-046-0945ND
2019-07-179590-049-0840ND
2019-07-179590-051-1005ND
2019-07-179590-070-0920ND
2019-07-249590-003-0955ND
2019-07-249590-004-1010ND
2019-07-249590-047-0930ND
2019-07-249590-073-0915ND
2019-11-219590-048-1120ND
2019-11-252104-005-1030ND