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EWG's Tap Water Database — 2021 UPDATE

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Silver

Cucamonga Valley 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.

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100

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
2014ND310ND
2015ND70ND
2016ND50ND
2017ND240ND
2018ND290ND
2019ND40ND

ppb = parts per billion

All test results

Date Lab ID Result
2014-02-273761-038-1255ND
2014-05-293761-033-0940ND
2014-06-053761-027-1045ND
2014-06-183761-051-1138ND
2014-06-193761-054-0940ND
2014-06-193761-053-0925ND
2014-06-193761-052-0930ND
2014-06-193761-050-1035ND
2014-06-263761-029-1052ND
2014-06-263761-010-1103ND
2014-06-263761-035-1022ND
2014-06-263761-035-1007ND
2014-06-263761-034-1042ND
2014-06-263761-008-1015ND
2014-07-103761-002-1103ND
2014-07-103761-025-1042ND
2014-07-103761-037-1007ND
2014-07-103761-004-1022ND
2014-07-103761-042-1015ND
2014-07-103761-003-1052ND
2014-08-053761-055-1150ND
2014-08-143761-016-1105ND
2014-08-143761-022-0842ND
2014-08-143761-001-0917ND
2014-08-183761-033-1050ND
2014-08-213761-024-0940ND
2014-08-213761-023-0930ND
2014-09-043761-027-1010ND
2014-10-163761-039-1050ND
2014-11-203761-033-1145ND
2014-12-093761-027-1040ND
2015-03-053761-027-0855ND
2015-05-133761-055-1050ND
2015-06-113761-022-1035ND
2015-06-113761-001-1020ND
2015-07-093761-017-1100ND
2015-08-203761-055-0925ND
2015-11-233761-055-0900ND
2016-02-113761-055-1040ND
2016-07-213761-001-0930ND
2016-07-213761-022-0955ND
2016-07-213761-017-1120ND
2016-11-233761-035-1440ND
2017-06-023761-027-0918ND
2017-06-143761-035-0930ND
2017-06-143761-039-0959ND
2017-06-143761-038-1026ND
2017-06-153761-034-0910ND
2017-06-153761-033-1047ND
2017-06-153761-008-0931ND
2017-06-193761-042-0859ND
2017-06-193761-053-0908ND
2017-06-223761-003-0806ND
2017-06-223761-025-0818ND
2017-06-223761-052-0913ND
2017-06-223761-053-0902ND
2017-06-263761-002-0929ND
2017-06-263761-054-1041ND
2017-06-283761-050-0744ND
2017-06-283761-051-0735ND
2017-07-033761-055-1041ND
2017-07-123761-017-1408ND
2017-07-133761-022-0928ND
2017-07-133761-001-0733ND
2017-07-133761-010-1305ND
2017-07-133761-029-1319ND
2017-07-173761-004-1231ND
2018-03-143761-023-1149ND
2018-03-143761-016-1008ND
2018-03-283761-024-0931ND
2018-06-209588-029-1228ND
2018-06-209588-027-1105ND
2018-06-209588-038-1138ND
2018-06-209588-008-1044ND
2018-06-209588-034-1200ND
2018-06-219588-003-0848ND
2018-06-219588-051-0815ND
2018-06-219588-037-0914ND
2018-06-219588-050-1244ND
2018-06-219588-025-0832ND
2018-06-259588-035-1127ND
2018-06-259588-004-0941ND
2018-06-269588-054-1035ND
2018-06-269588-052-0925ND
2018-06-269588-053-1000ND
2018-06-279588-033-1020ND
2018-06-279588-055-1140ND
2018-07-039588-010-0917ND
2018-07-119588-042-0950ND
2018-07-119588-002-1000ND
2018-07-129588-017-1214ND
2018-07-189588-022-1010ND
2018-07-189588-001-0950ND
2018-07-269588-016-0846ND
2018-07-269588-023-0912ND
2018-07-269588-024-0904ND
2019-07-019588-017-0945ND
2019-07-249588-017-1115ND
2019-07-269588-022-0915ND
2019-07-269588-001-0900ND