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EWG's Tap Water Database — 2019 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.

 

80

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND130ND
2013ND170ND
2014ND130ND
2015ND90ND
2016ND130ND
2017ND150ND

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
2012-02-149590-106-1330ND
2012-02-149590-009-1250ND
2012-03-079590-037-1402ND
2012-03-089590-041-1146ND
2012-03-279590-015-1120ND
2012-04-189590-010-1148ND
2012-04-199590-008-1040ND
2012-06-149590-006-1016ND
2012-06-289590-015-1039ND
2012-07-249590-104-1438ND
2012-09-209590-005-1139ND
2012-09-205810-015-1056ND
2012-12-269590-015-1050ND
2013-01-179590-017-1350ND
2013-01-239590-024-1258ND
2013-01-249590-022-1348ND
2013-01-249590-015-1045ND
2013-01-249590-043-1448ND
2013-01-299590-018-1004ND
2013-03-079590-015-1155ND
2013-03-129590-023-1439ND
2013-03-129590-014-1335ND
2013-05-099590-102-1314ND
2013-05-099590-103-1457ND
2013-06-139590-020-1135ND
2013-06-139590-015-1359ND
2013-09-189590-015-1136ND
2013-11-149590-123-1350ND
2013-12-199590-015-0955ND
2013-12-269590-131-1159ND
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
2016-12-289590-027-1513ND
2016-12-289590-123-1442ND
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
2017-11-209590-014-1416ND
2017-11-209590-008-1341ND
2017-11-219590-131-1252ND
2017-11-219590-104-1352ND
2017-11-289590-043-1424ND
2017-11-299590-030-1455ND
2017-12-069590-015-1343ND