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EWG's Tap Water Database — 2019 UPDATE

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Silver

San Fernando 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.

 

6

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND30ND
2013N/A00N/A
2014N/A00N/A
2015ND30ND
2016N/A00N/A
2017N/A00N/A

ppb = parts per billion

All test results

Date Lab ID Result
2012-01-189590-002-1035ND
2012-01-189590-003-1000ND
2012-01-189590-004-0920ND
2015-04-089590-002-1000ND
2015-04-089590-003-1130ND
2015-04-089590-004-0845ND