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EWG's Tap Water Database — 2021 UPDATE

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Nitrite

California Water Service (CWS) - Salinas

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.

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83

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND130ND
2015ND90ND
2016ND130ND
2017ND150ND
2018ND140ND
2019ND190ND

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
2014-01-159590-019-1331ND
2014-03-049590-015-1055ND
2014-04-229590-039-1112ND
2014-06-119590-015-0950ND
2014-06-179590-026-1239ND
2014-08-139590-028-1355ND
2014-08-259590-030-1105ND
2014-08-269590-029-1025ND
2014-09-039590-029-1018ND
2014-09-119590-015-1406ND
2014-09-259590-046-1343ND
2014-09-259590-027-0937ND
2014-12-185810-015-1501ND
2015-02-189590-009-1400ND
2015-02-189590-106-1315ND
2015-03-109590-015-1117ND
2015-03-119590-037-1110ND
2015-03-119590-041-1030ND
2015-04-219590-008-1453ND
2015-06-039590-006-1010ND
2015-06-309590-015-0940ND
2015-07-229590-005-1536ND
2016-01-269590-020-1326ND
2016-01-279590-018-1020ND
2016-02-039590-022-1410ND
2016-02-109590-103-1330ND
2016-02-169590-103-1433ND
2016-02-229590-024-1515ND
2016-03-039590-015-1433ND
2016-05-049590-017-1429ND
2016-05-129590-102-1427ND
2016-06-289590-023-1358ND
2016-12-289590-123-1442ND
2016-12-289590-027-1513ND
2016-12-299590-008-1415ND
2017-01-109590-019-1355ND
2017-02-279590-027-1516ND
2017-03-029590-132-1050ND
2017-08-159590-026-1426ND
2017-08-239590-029-1413ND
2017-09-059590-015-1046ND
2017-09-199590-046-1423ND
2017-10-179590-030-1331ND
2017-11-209590-008-1341ND
2017-11-209590-014-1416ND
2017-11-219590-104-1352ND
2017-11-219590-131-1252ND
2017-11-289590-043-1424ND
2017-11-299590-030-1455ND
2017-12-069590-015-1343ND
2018-02-149590-006-1421ND
2018-02-219590-104-1354ND
2018-03-149590-015-1417ND
2018-03-149590-037-1352ND
2018-03-149590-009-1305ND
2018-03-209590-132-1010ND
2018-04-189590-017-1210ND
2018-04-269590-041-1329ND
2018-06-129590-015-1008ND
2018-06-269590-106-1425ND
2018-07-259590-005-1300ND
2018-09-119590-015-0940ND
2018-09-189590-106-1416ND
2018-12-189590-015-0943ND
2019-01-089590-022-1146ND
2019-01-089590-020-1221ND
2019-01-239590-024-1348ND
2019-01-299590-018-1409ND
2019-01-309590-043-1405ND
2019-02-129590-103-1329ND
2019-02-259590-030-1344ND
2019-03-149590-015-1444ND
2019-03-269590-015-1428ND
2019-04-099590-008-1421ND
2019-04-119590-023-1403ND
2019-05-099590-017-1431ND
2019-05-239590-102-1320ND
2019-06-115810-015-1450ND
2019-09-119590-015-1219ND
2019-10-109590-131-1345ND
2019-10-109590-027-1313ND
2019-11-189590-123-1300ND
2019-12-039590-015-1311ND