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EWG's Tap Water Database — 2019 UPDATE

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Silver

Golden State Water Company (GSWC) - San Dimas

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.

 

6

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND10ND
2013ND30ND
2014N/A00N/A
2015ND10ND
2016N/A00N/A
2017ND10ND

ppb = parts per billion

All test results

Date Lab ID Result
2012-08-159588-014-0945ND
2013-03-112706-039-1403ND
2013-04-092706-039-1312ND
2013-11-149588-051-0920ND
2015-09-119588-014-0905ND
2017-01-059588-051-0800ND