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EWG's Tap Water Database — 2019 UPDATE

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Silver

City of Lathrop

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
2012ND10ND
2013N/A00N/A
2014ND50ND
2015N/A00N/A
2016N/A00N/A
2017ND50ND

ppb = parts per billion

All test results

Date Lab ID Result
2012-11-205867-016-0958ND
2014-04-011610-005-0905ND
2014-04-011610-006-0920ND
2014-04-011610-016-0943ND
2014-06-031610-007-0843ND
2014-06-171610-008-0954ND
2017-04-039590-005-1012ND
2017-04-039590-006-1033ND
2017-04-039590-007-0947ND
2017-04-039590-008-1130ND
2017-04-039590-016-1105ND