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EWG's Tap Water Database — 2021 UPDATE

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Silver

Clay County Water Authority

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
2014ND10ND
2015ND10ND
2016ND10ND
2017ND10ND
2018ND10ND
2019ND10ND

ppb = parts per billion

All test results

Date Lab ID Result
2014-05-0826605082014-1IND
2015-04-15266-041515-IOC-1ND
2016-05-0426605042016-1ND
2017-07-17169914-01INOND
2018-04-18178082-01AINOND
2019-03-18188176-01ND