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EWG's Tap Water Database — 2019 UPDATE

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Silver

Los Angeles County WW District 40 Reg 38 Lake Los Angeles

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.

 

4

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND10ND
2013N/A00N/A
2014ND10ND
2015ND10ND
2016N/A00N/A
2017ND10ND

ppb = parts per billion

All test results

Date Lab ID Result
2012-09-065442-003-1016ND
2014-04-155442-008-0924ND
2015-06-225442-003-0915ND
2017-11-209590-008-1010ND