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EWG's Tap Water Database — 2021 UPDATE

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Silver

Hope Water Light Comm.

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.

 

21

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND10ND
2015ND10ND
2016ND80ND
2017ND10ND
2018ND10ND
2019ND90ND

ppb = parts per billion

All test results

Date Lab ID Result
2014-10-29Y143030005ND
2015-10-05Y152820006ND
2016-07-20Y162030006ND
2016-07-20Y162030007ND
2016-07-20Y162030008ND
2016-07-20Y162030009ND
2016-07-20Y162030010ND
2016-07-20Y162030004ND
2016-07-20Y162030005ND
2016-10-05Y162800009ND
2017-10-03Y172780003ND
2018-10-03Y182770002ND
2019-08-05Y192200006ND
2019-08-05Y192200007ND
2019-08-05Y192200002ND
2019-08-05Y192200003ND
2019-08-05Y192200005ND
2019-08-05Y192200004ND
2019-08-05Y192200001ND
2019-10-16Y192900002ND
2019-11-18Y193250108ND