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EWG's Tap Water Database — 2019 UPDATE

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Silver

Waukesha Water Utility

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.

 

11

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012N/A00N/A
2013N/A00N/A
2014N/A00N/A
2015ND40ND
2016N/A00N/A
2017ND70ND

ppb = parts per billion

All test results

Date Lab ID Result
2015-03-10847852ND
2015-03-10847850ND
2015-03-11847854ND
2015-09-29886381ND
2017-03-28980079ND
2017-03-28980085ND
2017-03-28980082ND
2017-05-02986362ND
2017-05-02986365ND
2017-05-31994538ND
2017-05-31994541ND