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EWG's Tap Water Database — 2019 UPDATE

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Silver

SBNDO County Service Area 70J

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.

 

11

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
2016ND10ND
2017ND50ND

ppb = parts per billion

All test results

Date Lab ID Result
2014-01-103761-001-1025ND
2014-01-103761-002-1000ND
2014-01-103761-003-0925ND
2014-01-163761-005-1400ND
2014-02-123761-004-1040ND
2016-08-043761-005-1350ND
2017-01-043761-001-1305ND
2017-01-043761-002-1235ND
2017-01-043761-003-1110ND
2017-01-043761-004-1150ND
2017-01-043761-005-1010ND