Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

Nitrite

Sacramento County Water Authority - Laguna/Vineyard

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

 

67

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
2014ND280ND
2015ND50ND
2016ND20ND
2017ND260ND
2018ND40ND
2019ND20ND

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
2014-02-185810-051-1049ND
2014-02-185810-029-1221ND
2014-02-185810-049-1316ND
2014-02-195810-010-1014ND
2014-02-195810-008-1450ND
2014-02-195810-006-1303ND
2014-02-195810-005-1110ND
2014-02-195810-004-1438ND
2014-02-195810-003-1350ND
2014-02-195810-002-1509ND
2014-03-195810-017-0929ND
2014-03-195810-016-0856ND
2014-03-195810-034-1002ND
2014-05-225810-018-1326ND
2014-05-225810-019-1405ND
2014-05-225810-024-0937ND
2014-05-225810-028-1001ND
2014-05-225810-025-1129ND
2014-05-225810-038-1036ND
2014-08-195810-031-0945ND
2014-08-195810-013-1243ND
2014-08-205810-021-1410ND
2014-08-205810-030-1138ND
2014-08-205810-020-1345ND
2014-08-205810-048-1200ND
2014-08-205810-026-1248ND
2014-08-205810-023-1326ND
2014-08-215810-022-0937ND
2015-02-175810-050-1233ND
2015-03-115810-041-0815ND
2015-05-135810-040-1249ND
2015-05-135810-015-1031ND
2015-05-145810-012-1150ND
2016-02-115810-001-1250ND
2016-02-295810-027-0931ND
2017-02-065810-049-1150ND
2017-02-065810-002-1248ND
2017-02-065810-003-1318ND
2017-02-065810-004-1306ND
2017-02-065810-008-1341ND
2017-02-065810-029-1414ND
2017-02-075810-017-1024ND
2017-02-075810-016-0918ND
2017-02-075810-034-0846ND
2017-05-015810-028-1216ND
2017-05-015810-025-1430ND
2017-05-015810-024-1143ND
2017-05-015810-038-1255ND
2017-05-025810-051-0812ND
2017-05-095810-018-1050ND
2017-05-095810-019-1228ND
2017-05-095810-086-1353ND
2017-08-025810-048-0946ND
2017-08-025810-031-0848ND
2017-08-025810-030-0934ND
2017-08-025810-026-1012ND
2017-08-025810-013-1257ND
2017-08-165810-022-0856ND
2017-08-165810-020-1110ND
2017-08-235810-023-0844ND
2017-08-235810-021-0808ND
2018-02-155810-041-1020ND
2018-05-075810-050-1500ND
2018-05-225810-040-1051ND
2018-05-235810-015-1307ND
2019-02-052435-027-1000ND
2019-02-145810-001-1034ND