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EWG's Tap Water Database — 2019 UPDATE

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Silver

Cross Valley Water District

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
2012ND110ND
2013ND50ND
2014ND10ND
2015N/A00N/A
2016N/A00N/A
2017N/A00N/A

ppb = parts per billion

All test results

Date Lab ID Result
2012-12-1149250ND
2012-12-1149253ND
2012-12-1149252ND
2012-12-1149251ND
2012-12-1149249ND
2012-12-1149248ND
2012-12-1149247ND
2012-12-1149246ND
2012-12-1149245ND
2012-12-1149244ND
2012-12-1149243ND
2013-12-1053122ND
2013-12-1053121ND
2013-12-1053120ND
2013-12-1053119ND
2013-12-1053123ND
2014-10-1446279ND