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EWG's Tap Water Database — 2019 UPDATE

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Silver

City of Newport Beach

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.

 

15

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND40ND
2013ND30ND
2014N/A00N/A
2015ND40ND
2016N/A00N/A
2017ND40ND

ppb = parts per billion

All test results

Date Lab ID Result
2012-02-234417-004-0800ND
2012-03-274417-005-0850ND
2012-05-174417-002-0830ND
2012-05-244417-003-0900ND
2013-09-034417-005-1040ND
2013-09-034417-004-1050ND
2013-09-034417-003-1015ND
2015-03-024417-004-0815ND
2015-03-024417-005-0835ND
2015-05-044417-002-1050ND
2015-05-044417-003-1115ND
2017-02-094417-004-0950ND
2017-05-034417-003-1220ND
2017-05-034417-002-1235ND
2017-05-034417-005-1145ND