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EWG's Tap Water Database — 2019 UPDATE

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Silver

Chesterfield County Central Water System

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.

 

24

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND40ND
2013ND40ND
2014ND40ND
2015ND40ND
2016ND40ND
2017ND40ND

ppb = parts per billion

All test results

Date Lab ID Result
2012-06-05E120400846ND
2012-06-05E120400834ND
2012-06-05E120400813ND
2012-06-05E120400853ND
2013-04-23E130202495ND
2013-04-23E130202517ND
2013-04-23E130202490ND
2013-04-23E130202500ND
2014-04-22E140308583ND
2014-04-22E140308581ND
2014-04-22E140308599ND
2014-04-22E140308608ND
2015-04-23VA010-DCLSND
2015-04-23VA010-DCLSND
2015-04-23VA010-DCLSND
2015-04-23VA010-DCLSND
2016-04-25E160305660ND
2016-04-25E160305669ND
2016-04-25E160305653ND
2016-04-25E160305667ND
2017-04-19E170304740ND
2017-04-19E170304734ND
2017-04-19E170304729ND
2017-04-19E170304737ND