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EWG's Tap Water Database — 2019 UPDATE

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Silver

Palmer Water District No.1

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.

 

24

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND70ND
2013ND70ND
2014ND70ND
2015N/A00N/A
2016N/A00N/A
2017ND30ND

ppb = parts per billion

All test results

Date Result
2012-12-11ND
2012-12-11ND
2012-12-11ND
2012-12-11ND
2012-12-11ND
2012-12-11ND
2012-12-11ND
2013-12-18ND
2013-12-18ND
2013-12-18ND
2013-12-18ND
2013-12-18ND
2013-12-18ND
2013-12-18ND
2014-11-24ND
2014-11-24ND
2014-11-24ND
2014-11-24ND
2014-11-24ND
2014-11-24ND
2014-11-24ND
2017-04-11ND
2017-04-11ND
2017-04-11ND