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EWG's Tap Water Database

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Silver

Beauregard Water Works District #3

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.

 

22

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2010N/A00N/A
2011N/A00N/A
2012ND100ND
2013ND100ND
2014N/A00N/A
2015ND20ND

ppb = parts per billion.

All test results

Date Lab ID Result
2012-11-05AD72981ND
2012-11-05AD72966ND
2012-11-05AD72961ND
2012-11-05AD72976ND
2012-11-05AD72981ND
2012-11-05AD72976ND
2012-11-05AD72971ND
2012-11-05AD72966ND
2012-11-05AD72961ND
2012-11-05AD72971ND
2013-01-14AD74749ND
2013-01-14AD74734ND
2013-01-14AD74739ND
2013-01-14AD74754ND
2013-01-14AD74749ND
2013-01-14AD74754ND
2013-01-14AD74739ND
2013-01-14AD74734ND
2013-01-14AD74744ND
2013-01-14AD74744ND
2015-03-0235177665002ND
2015-03-0235177665002ND