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EWG's Tap Water Database — 2021 UPDATE

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Silver

Purcellville, Town of

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.

 

17

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND40ND
2015ND20ND
2016ND20ND
2017ND40ND
2018ND20ND
2019ND30ND

ppb = parts per billion

All test results

Date Lab ID Result
2014-02-26E131208334ND
2014-06-10E140304169ND
2014-06-10E140304181ND
2014-06-26E140304175ND
2015-03-26VA010-DCLSND
2015-05-19VA010-DCLSND
2016-06-15E160305750ND
2016-11-02E160805470ND
2017-02-07E161201335ND
2017-05-16E170300429ND
2017-05-16E170300435ND
2017-05-23E170300447ND
2018-02-27E180100341ND
2018-05-23E180303856ND
2019-03-21E190302939ND
2019-03-21E190302950ND
2019-05-29E190304845ND