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EWG's Tap Water Database — 2021 UPDATE

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Nitrite

City of Upland

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

 

169

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
2014ND350ND
2015ND140ND
2016ND160ND
2017ND270ND
2018ND240ND
2019ND530ND

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
2014-01-149590-001-1045ND
2014-01-149590-023-1355ND
2014-01-149590-026-1330ND
2014-01-149590-038-0735ND
2014-01-149590-045-1105ND
2014-04-309590-023-0814ND
2014-04-309590-026-0840ND
2014-04-309590-038-1107ND
2014-04-309590-045-1244ND
2014-07-169590-023-1228ND
2014-07-169590-026-1246ND
2014-07-169590-038-0900ND
2014-07-169590-045-1507ND
2014-08-269590-023-0849ND
2014-08-269590-026-0837ND
2014-08-269590-036-1008ND
2014-08-269590-038-0931ND
2014-08-269590-040-0809ND
2014-08-269590-045-1117ND
2014-08-269590-048-1027ND
2014-09-259590-021-1000ND
2014-09-259590-023-1027ND
2014-09-259590-024-1240ND
2014-09-259590-026-1000ND
2014-09-259590-036-0750ND
2014-09-259590-038-0850ND
2014-09-259590-040-0930ND
2014-09-259590-045-1235ND
2014-09-259590-048-0920ND
2014-10-079590-004-0812ND
2014-10-079590-047-0920ND
2014-10-089590-023-1222ND
2014-10-089590-026-1245ND
2014-10-089590-038-0851ND
2014-10-089590-045-1525ND
2015-01-139590-023-1224ND
2015-01-139590-026-0739ND
2015-01-139590-038-0855ND
2015-01-139590-045-0950ND
2015-04-289590-023-1017ND
2015-04-289590-026-1039ND
2015-07-279590-023-0732ND
2015-07-279590-026-1008ND
2015-07-279590-038-0715ND
2015-07-279590-045-1032ND
2015-10-209590-023-0745ND
2015-10-209590-026-1005ND
2015-10-209590-038-0948ND
2015-10-209590-045-1020ND
2016-01-279590-023-1124ND
2016-01-279590-026-1324ND
2016-01-279590-038-0935ND
2016-01-279590-045-1254ND
2016-04-279590-023-1315ND
2016-04-279590-026-1107ND
2016-04-279590-038-0917ND
2016-04-279590-045-1334ND
2016-07-209590-023-0730ND
2016-07-209590-026-0630ND
2016-07-209590-038-0726ND
2016-07-209590-045-0825ND
2016-10-189590-023-0725ND
2016-10-189590-026-1115ND
2016-10-189590-038-0800ND
2016-10-189590-045-1255ND
2017-02-029590-001-1110ND
2017-04-189590-026-1349ND
2017-04-279590-001-0837ND
2017-04-279590-023-0947ND
2017-04-279590-026-0735ND
2017-04-279590-038-0825ND
2017-04-279590-045-1130ND
2017-07-269590-001-0815ND
2017-07-269590-023-1430ND
2017-07-269590-026-1417ND
2017-07-269590-038-0942ND
2017-07-269590-045-0712ND
2017-08-239590-001-1018ND
2017-08-239590-021-0831ND
2017-08-239590-023-1110ND
2017-08-239590-024-0915ND
2017-08-239590-026-1215ND
2017-08-239590-038-1055ND
2017-08-239590-040-0945ND
2017-08-239590-045-0815ND
2017-10-109590-026-1340ND
2017-10-259590-001-0745ND
2017-10-259590-023-0845ND
2017-10-259590-026-0823ND
2017-10-259590-038-1050ND
2017-10-259590-045-1115ND
2017-12-069590-036-1215ND
2018-01-319590-001-1110ND
2018-01-319590-023-0800ND
2018-01-319590-026-0816ND
2018-01-319590-038-0851ND
2018-01-319590-045-1310ND
2018-04-109590-040-1312ND
2018-06-069590-001-0935ND
2018-06-069590-023-0910ND
2018-06-069590-026-0925ND
2018-06-069590-038-0820ND
2018-06-069590-045-1035ND
2018-07-259590-001-0900ND
2018-07-259590-023-1057ND
2018-07-259590-026-1037ND
2018-07-259590-038-0950ND
2018-07-259590-045-1000ND
2018-08-229590-021-1027ND
2018-08-229590-024-0835ND
2018-08-229590-036-0945ND
2018-10-249590-001-1212ND
2018-10-249590-023-0945ND
2018-10-249590-026-0920ND
2018-10-249590-038-0810ND
2018-10-249590-045-0905ND
2019-01-309590-001-0830ND
2019-01-309590-023-0955ND
2019-01-309590-026-0931ND
2019-01-309590-038-0749ND
2019-01-309590-045-1047ND
2019-04-249590-001-0835ND
2019-04-249590-023-0925ND
2019-04-249590-026-0908ND
2019-07-249590-001-1115ND
2019-07-249590-026-0745ND
2019-09-249590-023-1432ND
2019-09-249590-026-1332ND
2019-09-249590-040-1347ND
2019-09-249590-051-1353ND
2019-10-019590-040-1415ND
2019-10-019590-051-1417ND
2019-10-089590-023-1309ND
2019-10-089590-026-1238ND
2019-10-089590-040-1444ND
2019-10-089590-051-1448ND
2019-10-229590-040-1420ND
2019-10-229590-051-1426ND
2019-10-239590-001-0833ND
2019-10-239590-023-0944ND
2019-10-239590-026-0928ND
2019-10-299590-040-1336ND
2019-10-299590-051-1338ND
2019-11-059590-023-1355ND
2019-11-059590-026-1411ND
2019-11-059590-040-1322ND
2019-11-059590-051-1324ND
2019-11-129590-040-1345ND
2019-11-129590-051-1405ND
2019-11-199590-023-1000ND
2019-11-199590-026-0940ND
2019-11-199590-040-1035ND
2019-11-199590-051-1047ND
2019-11-269590-040-1350ND
2019-11-269590-051-1352ND
2019-12-039590-023-1350ND
2019-12-039590-026-1404ND
2019-12-049590-040-1301ND
2019-12-049590-051-1306ND
2019-12-109590-040-1306ND
2019-12-109590-051-1255ND
2019-12-179590-023-1325ND
2019-12-179590-026-1310ND
2019-12-179590-040-1250ND
2019-12-179590-051-1253ND
2019-12-239590-040-1214ND
2019-12-239590-051-1222ND
2019-12-309590-040-1343ND
2019-12-309590-051-1402ND