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EWG's Tap Water Database

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Silver

Green River 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.

 

6

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2010ND10ND
2011ND10ND
2012ND10ND
2013ND10ND
2014ND10ND
2015ND10ND

ppb = parts per billion.

All test results

Date Lab ID Result
2010-02-09AH24233ND
2011-02-08AH99576ND
2012-02-142020128-01ND
2013-02-193020071-01ND
2014-02-114020251-01ND
2015-01-205020260-01ND