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EWG's Tap Water Database — 2021 UPDATE

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Nitrite

City of Tustin

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

 

165

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
2014ND270ND
2015ND290ND
2016ND270ND
2017ND420ND
2018ND190ND
2019ND210ND

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
2014-02-254417-003-0925ND
2014-02-254417-008-1050ND
2014-02-254417-011-1000ND
2014-02-254417-012-1025ND
2014-02-254417-016-0945ND
2014-02-254417-017-1115ND
2014-02-254417-032-0900ND
2014-05-284417-003-1005ND
2014-05-284417-011-1040ND
2014-05-284417-013-0830ND
2014-05-284417-016-1025ND
2014-05-284417-017-0910ND
2014-05-284417-032-0945ND
2014-08-134417-003-1015ND
2014-08-134417-008-0930ND
2014-08-134417-011-1045ND
2014-08-134417-013-0850ND
2014-08-134417-016-1030ND
2014-08-134417-017-0915ND
2014-08-134417-032-0955ND
2014-11-134417-003-1045ND
2014-11-134417-008-1025ND
2014-11-134417-011-1130ND
2014-11-134417-013-0945ND
2014-11-134417-016-1115ND
2014-11-134417-017-1005ND
2014-11-134417-032-1100ND
2015-03-114417-008-0940ND
2015-03-114417-011-1030ND
2015-03-114417-012-1045ND
2015-03-114417-013-0905ND
2015-03-114417-016-1015ND
2015-03-114417-017-0925ND
2015-05-134417-008-0910ND
2015-05-134417-011-1040ND
2015-05-134417-013-0840ND
2015-05-134417-017-0925ND
2015-05-134417-032-0955ND
2015-07-274417-009-0940ND
2015-07-274417-011-1110ND
2015-07-274417-013-0850ND
2015-07-274417-022-1030ND
2015-08-104417-008-1040ND
2015-08-104417-017-1100ND
2015-08-104417-022-1110ND
2015-08-104417-022-1125ND
2015-11-104417-008-0900ND
2015-11-104417-011-0930ND
2015-11-184417-009-1145ND
2015-11-184417-009-1150ND
2015-11-184417-009-1155ND
2015-11-184417-022-1110ND
2015-11-184417-022-1125ND
2015-11-184417-022-1135ND
2015-12-074417-013-1100ND
2015-12-144417-017-0900ND
2016-02-244417-003-1110ND
2016-02-244417-008-0855ND
2016-02-244417-011-0950ND
2016-02-244417-016-0930ND
2016-02-244417-017-0840ND
2016-02-244417-022-1035ND
2016-03-214417-003-0855ND
2016-03-214417-003-0910ND
2016-03-214417-013-0825ND
2016-06-024417-003-1035ND
2016-06-024417-003-1050ND
2016-06-024417-008-0935ND
2016-06-024417-011-1110ND
2016-06-024417-013-0955ND
2016-06-024417-032-1015ND
2016-06-284417-011-0845ND
2016-08-174417-008-1215ND
2016-08-174417-011-1310ND
2016-08-174417-013-1235ND
2016-08-174417-022-0950ND
2016-09-134417-009-0905ND
2016-11-074417-008-0930ND
2016-11-074417-011-1020ND
2016-11-074417-013-0905ND
2016-11-294417-009-1025ND
2016-11-294417-022-1045ND
2016-12-074417-036-0910ND
2017-01-314417-008-1020ND
2017-01-314417-017-0950ND
2017-02-064417-003-1000ND
2017-02-064417-009-1025ND
2017-02-064417-011-1110ND
2017-02-064417-013-0940ND
2017-02-064417-016-1050ND
2017-02-064417-022-1130ND
2017-02-064417-036-0850ND
2017-03-064417-011-0915ND
2017-03-064417-011-0925ND
2017-03-064417-012-0935ND
2017-03-064417-016-0900ND
2017-03-064417-016-0910ND
2017-03-154417-016-1105ND
2017-03-234417-017-1130ND
2017-04-054417-017-0830ND
2017-04-054417-017-0845ND
2017-04-134417-017-0930ND
2017-04-134417-017-0940ND
2017-05-114417-008-0920ND
2017-05-114417-009-1030ND
2017-05-114417-011-1045ND
2017-05-114417-013-0830ND
2017-05-114417-016-0945ND
2017-05-114417-017-0900ND
2017-05-114417-022-1005ND
2017-05-314417-032-0935ND
2017-05-314417-036-0840ND
2017-07-274417-011-1230ND
2017-07-274417-013-1205ND
2017-07-274417-036-1140ND
2017-09-074417-008-1100ND
2017-09-074417-009-1115ND
2017-09-074417-017-1050ND
2017-09-074417-022-1140ND
2017-11-294417-008-0930ND
2017-11-294417-009-1000ND
2017-11-294417-011-1050ND
2017-11-294417-013-0900ND
2017-11-294417-017-0920ND
2017-11-294417-022-1020ND
2018-01-304417-022-0915ND
2018-02-134417-011-1010ND
2018-02-134417-016-0940ND
2018-02-224417-003-0900ND
2018-02-224417-009-0930ND
2018-02-224417-013-0830ND
2018-03-084417-012-0850ND
2018-03-214417-008-0910ND
2018-03-214417-017-0850ND
2018-06-054417-032-1000ND
2018-06-054417-036-0920ND
2018-06-074417-011-1010ND
2018-06-074417-013-1040ND
2018-06-134417-008-1150ND
2018-06-134417-017-1140ND
2018-08-064417-011-1145ND
2018-08-064417-013-0955ND
2018-10-304417-011-0935ND
2018-10-304417-013-1045ND
2019-02-194417-003-0955ND
2019-02-194417-009-0905ND
2019-02-194417-011-1030ND
2019-02-194417-022-0930ND
2019-02-214417-012-0835ND
2019-02-214417-013-0910ND
2019-02-214417-016-0850ND
2019-02-254417-032-1000ND
2019-02-254417-036-0940ND
2019-05-094417-009-0855ND
2019-05-094417-022-0915ND
2019-05-234417-011-0845ND
2019-05-234417-013-0910ND
2019-07-154417-009-1030ND
2019-07-154417-011-1120ND
2019-07-154417-013-0950ND
2019-07-154417-022-1050ND
2019-10-284417-009-1010ND
2019-10-284417-011-0925ND
2019-10-284417-013-1035ND
2019-10-284417-022-0955ND