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EWG's Tap Water Database — 2021 UPDATE

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Silver

City of Pflugerville

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
2014ND10ND
2015ND10ND
2016ND30ND
2017ND20ND
2018ND10ND
2019ND30ND

ppb = parts per billion

All test results

Date Lab ID Result
2014-03-12AC46694ND
2015-02-11AC80133ND
2016-02-08AD22385ND
2016-04-28AD34593ND
2016-11-29AD59315ND
2017-01-24AD66334ND
2017-01-24AD66351ND
2018-08-14AE36781ND
2019-02-14AE54528ND
2019-02-14AE54527ND
2019-08-19AE79192ND