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EWG's Tap Water Database — 2021 UPDATE

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Nitrite

City of Delano

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

 

168

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND90ND
2015ND100ND
2016ND290ND
2017ND380ND
2018ND440ND
2019ND380ND

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
2014-07-015810-013-0800ND
2014-07-015810-017-0830ND
2014-07-015810-033-0730ND
2014-07-085810-035-0900ND
2014-07-085810-036-1025ND
2014-07-085810-037-0830ND
2014-07-085810-039-0950ND
2014-07-085810-042-0949ND
2014-09-025810-038-0911ND
2015-07-215810-013-0945ND
2015-07-215810-017-0855ND
2015-07-215810-033-0805ND
2015-07-215810-036-1000ND
2015-07-215810-037-0915ND
2015-07-215810-038-0913ND
2015-07-215810-039-0840ND
2015-07-215810-042-0930ND
2015-07-225806-035-1145ND
2015-07-225806-047-1320ND
2016-07-015810-053-1030ND
2016-07-055810-038-1030ND
2016-07-055810-053-1030ND
2016-07-085810-053-1030ND
2016-07-125810-033-0757ND
2016-07-125810-035-0910ND
2016-07-125810-037-0823ND
2016-07-125810-039-0900ND
2016-07-125810-042-0933ND
2016-07-125810-047-0812ND
2016-07-125810-053-0950ND
2016-07-155810-053-0830ND
2016-08-165810-036-1000ND
2016-08-235810-038-0930ND
2016-10-205810-053-1005ND
2016-10-275810-053-0930ND
2016-11-035810-053-1000ND
2016-11-085810-053-0900ND
2016-11-105810-053-0930ND
2016-11-175810-053-0830ND
2016-11-225810-033-1030ND
2016-11-225810-053-1000ND
2016-11-295810-053-1000ND
2016-12-015810-053-1120ND
2016-12-085810-053-1100ND
2016-12-155810-053-1100ND
2016-12-205810-053-1045ND
2016-12-225810-053-1030ND
2016-12-295810-053-1045ND
2017-01-055810-053-1115ND
2017-01-125810-053-0910ND
2017-01-265810-053-1126ND
2017-02-025810-053-1100ND
2017-02-075810-053-1040ND
2017-02-145810-053-0942ND
2017-02-165810-053-1100ND
2017-02-235810-053-1030ND
2017-03-025810-053-1113ND
2017-03-095810-053-1226ND
2017-03-145810-053-0935ND
2017-03-165810-053-0945ND
2017-03-235810-053-0930ND
2017-04-065810-053-1015ND
2017-04-255810-053-1009ND
2017-04-275810-053-1017ND
2017-05-255810-053-0940ND
2017-05-305810-053-0930ND
2017-06-015810-053-0930ND
2017-06-065810-053-0930ND
2017-06-205810-053-0930ND
2017-06-275810-053-0904ND
2017-06-295810-053-0912ND
2017-07-065810-053-0916ND
2017-07-115810-033-0950ND
2017-07-115810-035-0950ND
2017-07-115810-037-0926ND
2017-07-115810-039-0835ND
2017-07-115810-042-0725ND
2017-07-135810-053-0930ND
2017-07-185810-036-0945ND
2017-07-245810-053-1213ND
2017-07-315810-053-1015ND
2017-08-105810-053-1000ND
2017-08-145810-053-1030ND
2017-08-215810-053-0915ND
2017-09-055810-017-1000ND
2017-12-055810-047-1100ND
2018-02-215810-053-0813ND
2018-03-015810-053-0807ND
2018-03-065810-053-0819ND
2018-03-135810-053-1009ND
2018-03-235810-053-1003ND
2018-03-265810-053-0903ND
2018-04-115810-053-0854ND
2018-04-175810-053-0922ND
2018-04-245810-053-1136ND
2018-05-015810-053-1150ND
2018-05-115810-053-0739ND
2018-05-145810-053-0907ND
2018-05-215810-053-0824ND
2018-05-315810-053-0810ND
2018-06-055810-039-0838ND
2018-06-065810-053-0803ND
2018-06-125810-053-0906ND
2018-06-195810-053-0936ND
2018-06-265810-053-1114ND
2018-07-035810-053-1047ND
2018-07-105810-053-1125ND
2018-07-175810-017-0915ND
2018-07-175810-033-1100ND
2018-07-175810-047-1030ND
2018-07-245810-035-0925ND
2018-07-245810-036-1056ND
2018-07-245810-037-1056ND
2018-07-245810-039-0835ND
2018-07-245810-042-1010ND
2018-07-255810-053-0751ND
2018-07-315810-053-1111ND
2018-08-075810-053-1042ND
2018-08-145810-053-1036ND
2018-08-215810-053-1018ND
2018-08-295810-053-0817ND
2018-09-045810-053-1030ND
2018-09-115810-053-1104ND
2018-09-185810-053-1028ND
2018-09-255810-053-1041ND
2018-10-025810-053-1032ND
2018-10-085810-053-1106ND
2018-10-165810-053-1032ND
2018-10-235810-053-1020ND
2018-10-305810-053-1032ND
2019-01-185810-053-0818ND
2019-01-235810-053-0854ND
2019-02-015810-053-0705ND
2019-02-055810-053-1026ND
2019-02-125810-053-1016ND
2019-02-195810-053-1130ND
2019-02-265810-053-1029ND
2019-03-055810-053-1056ND
2019-03-125810-053-1056ND
2019-03-215810-053-0917ND
2019-03-265810-053-1050ND
2019-05-025810-053-0938ND
2019-05-095810-053-0947ND
2019-05-165810-053-0941ND
2019-05-245810-053-0815ND
2019-05-305810-053-0830ND
2019-06-045810-053-1050ND
2019-07-095810-017-0945ND
2019-07-095810-033-1100ND
2019-07-095810-035-0850ND
2019-07-095810-037-1030ND
2019-07-095810-039-0840ND
2019-07-095810-047-1035ND
2019-07-105810-053-0906ND
2019-08-085810-053-0819ND
2019-08-145810-053-0909ND
2019-08-205810-053-1010ND
2019-08-275810-053-1008ND
2019-09-035810-053-1003ND
2019-09-125810-053-0910ND
2019-09-175810-053-1037ND
2019-09-245810-053-1007ND
2019-10-015810-053-1016ND
2019-10-075810-053-1006ND
2019-11-145810-053-0938ND
2019-12-105810-053-1000ND
2019-12-175810-053-1024ND
2019-12-235810-053-1031ND