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EWG's Tap Water Database — 2021 UPDATE

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Silver

Great Oaks Water Company Inc.

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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35

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND20ND
2015N/A00N/A
2016ND140ND
2017ND40ND
2018N/A00N/A
2019ND150ND

ppb = parts per billion

All test results

Date Lab ID Result
2014-08-259590-022-1505ND
2014-08-259590-021-1545ND
2016-05-259590-025-1415ND
2016-08-229590-004-1230ND
2016-08-229590-011-1325ND
2016-08-229590-009-1410ND
2016-08-249590-015-1450ND
2016-08-249590-018-1315ND
2016-08-249590-013-1230ND
2016-08-249590-023-1405ND
2016-08-259590-008-1255ND
2016-08-259590-019-1350ND
2016-08-259590-002-1435ND
2016-08-259590-001-1205ND
2016-09-069590-007-1400ND
2016-11-029590-025-1115ND
2017-04-139590-006-1000ND
2017-06-019590-010-1030ND
2017-08-309590-021-1510ND
2017-08-319590-022-1515ND
2019-08-289590-001-1420ND
2019-08-289590-007-1120ND
2019-08-289590-006-0920ND
2019-08-289590-002-1030ND
2019-08-299590-015-0850ND
2019-08-299590-018-1000ND
2019-08-299590-009-0745ND
2019-08-299590-008-1410ND
2019-08-299590-004-1310ND
2019-09-059590-019-1145ND
2019-09-059590-023-1400ND
2019-09-059590-025-1250ND
2019-09-129590-013-1430ND
2019-09-129590-011-1300ND
2019-09-129590-010-1145ND