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EWG's Tap Water Database — 2019 UPDATE

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Silver

Sierra Madre Water Department

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.

 

10

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012N/A00N/A
2013N/A00N/A
2014ND50ND
2015N/A00N/A
2016N/A00N/A
2017ND50ND

ppb = parts per billion

All test results

Date Lab ID Result
2014-05-129588-003-1030ND
2014-05-129588-004-1045ND
2014-05-129588-005-1105ND
2014-05-129588-006-1055ND
2014-05-129588-007-1125ND
2017-05-039588-003-1030ND
2017-05-039588-004-1045ND
2017-05-039588-005-0930ND
2017-05-039588-006-0940ND
2017-05-039588-007-1010ND