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EWG's Tap Water Database — 2019 UPDATE

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Silver

La Habra Heights County Water District

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
2013ND20ND
2014ND20ND
2015ND20ND
2016ND20ND
2017ND20ND

ppb = parts per billion

All test results

Date Lab ID Result
2012-08-132706-005-1045ND
2013-07-162706-005-1340ND
2013-10-282706-009-0955ND
2014-04-119588-010-0930ND
2014-07-229588-005-0950ND
2015-07-289588-005-0947ND
2015-09-169588-006-1010ND
2016-07-139588-005-0907ND
2016-10-189588-009-0950ND
2017-04-149588-010-0928ND
2017-07-199588-005-0915ND