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EWG's Tap Water Database — 2021 UPDATE

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Silver

Benton 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.

 

7

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND10ND
2015ND10ND
2016ND10ND
2017ND10ND
2018ND20ND
2019ND10ND

ppb = parts per billion

All test results

Date Lab ID Result
2014-09-15Y142610019ND
2015-08-24Y152390003ND
2016-07-19Y162030001ND
2017-09-07Y172500001ND
2018-09-17Y182630012ND
2018-10-02Y182770006ND
2019-08-26Y192410016ND