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EWG's Tap Water Database

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Silver

Clarksville Waterworks

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.

 

8

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2010ND10ND
2011ND10ND
2012ND20ND
2013ND10ND
2014ND20ND
2015ND10ND

ppb = parts per billion.

All test results

Date Lab ID Result
2010-01-04100070005ND
2011-01-04110060002ND
2012-01-04Y120060007ND
2012-01-04120060007ND
2013-01-03130040015ND
2014-02-26140580001ND
2014-03-10140720021ND
2015-02-02Y150370001ND