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EWG's Tap Water Database — 2021 UPDATE

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Silver

Irvine Ranch Water District

Silver occurs naturally in surface and groundwater and can be added to water as a biocide that inhibits growth of bacteria and algae. Increasingly, the use of antimicrobial nano-sized silver particles in consumer products contributes to silver in water sources used for drinking water.

MORE ABOUT THIS CONTAMINANT

 

94

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
2014ND150ND
2015ND180ND
2016ND100ND
2017ND250ND
2018ND110ND
2019ND150ND

ppb = parts per billion

All test results

Date Lab ID Result
2014-01-144417-067-1010ND
2014-01-144417-066-0930ND
2014-02-114417-056-1305ND
2014-02-114417-007-1215ND
2014-02-264417-058-1020ND
2014-03-104417-055-0850ND
2014-03-114417-020-0930ND
2014-03-184417-014-0845ND
2014-03-254417-004-0845ND
2014-06-174417-018-0900ND
2014-07-174317-075-1332ND
2014-08-124317-060-1430ND
2014-08-274317-063-0817ND
2014-10-074417-078-1300ND
2014-10-234317-069-1305ND
2015-01-124417-078-1120ND
2015-01-274417-016-0930ND
2015-01-274417-003-1015ND
2015-02-094417-004-0940ND
2015-02-234417-019-0905ND
2015-03-184417-005-0950ND
2015-03-254417-009-1010ND
2015-04-074417-017-1000ND
2015-04-084417-078-1000ND
2015-04-234317-063-0835ND
2015-04-294417-011-0800ND
2015-05-204417-077-0750ND
2015-07-134417-077-1100ND
2015-07-144417-078-0900ND
2015-08-124317-060-1315ND
2015-08-194317-075-0948ND
2015-08-204417-010-0840ND
2015-10-054417-077-0930ND
2016-01-124417-077-1030ND
2016-01-284417-072-0925ND
2016-04-064417-006-0920ND
2016-05-314417-023-0905ND
2016-05-314417-024-0835ND
2016-06-154317-063-0945ND
2016-06-234417-008-0835ND
2016-07-264417-010-0900ND
2016-08-114317-060-1358ND
2016-09-224317-075-1129ND
2017-01-174417-016-0805ND
2017-01-174417-011-0835ND
2017-01-194417-058-0940ND
2017-01-194417-067-0830ND
2017-01-234417-005-1055ND
2017-01-234417-014-1015ND
2017-02-144417-020-1340ND
2017-02-144417-004-0820ND
2017-02-144417-066-0925ND
2017-02-284317-085-1334ND
2017-03-014417-020-0755ND
2017-03-144417-007-1010ND
2017-03-144417-056-1210ND
2017-03-214317-063-1418ND
2017-03-214317-064-1437ND
2017-03-234417-055-1000ND
2017-03-294317-069-1032ND
2017-03-304417-056-1340ND
2017-03-304417-055-1405ND
2017-04-264317-085-1040ND
2017-08-014417-018-0830ND
2017-08-234317-060-1022ND
2017-08-234317-075-0911ND
2017-11-144417-015-0925ND
2017-12-044417-009-0820ND
2018-02-064417-017-0720ND
2018-02-064417-006-0800ND
2018-02-084417-019-0840ND
2018-02-144317-085-1413ND
2018-02-204417-003-1220ND
2018-02-274317-069-1110ND
2018-03-054317-060-1433ND
2018-03-084317-075-1136ND
2018-03-204317-063-0820ND
2018-04-174317-085-1141ND
2018-04-304417-078-0925ND
2019-02-134317-060-1135ND
2019-02-214417-077-0940ND
2019-02-214417-072-1030ND
2019-02-274317-085-0941ND
2019-03-144317-064-0943ND
2019-03-144317-063-0935ND
2019-03-204317-075-1300ND
2019-04-154417-023-1310ND
2019-04-154417-017-1120ND
2019-04-154417-024-1230ND
2019-04-164417-008-0805ND
2019-05-234417-077-0945ND
2019-05-234417-077-0950ND
2019-06-274417-010-0745ND
2019-07-174317-085-1413ND