Menu

EWG's Tap Water Database — 2019 UPDATE

Donate

Silver

City of Auburn

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.

 

39

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND60ND
2013ND60ND
2014ND60ND
2015ND50ND
2016ND60ND
2017ND100ND

ppb = parts per billion

All test results

Date Lab ID Result
2012-07-1843812ND
2012-07-1843813ND
2012-07-1843814ND
2012-07-1843815ND
2012-07-1843816ND
2012-07-1843811ND
2013-07-0248395ND
2013-07-0248394ND
2013-07-0248393ND
2013-07-0248392ND
2013-07-0248391ND
2013-10-0850045ND
2014-08-2653706ND
2014-08-2653707ND
2014-08-2653708ND
2014-08-2653709ND
2014-08-2653722ND
2014-08-2653723ND
2015-08-1958150ND
2015-08-1958148ND
2015-08-1958153ND
2015-08-1958151ND
2015-08-1958149ND
2016-08-03ND
2016-08-03ND
2016-08-03ND
2016-08-03ND
2016-08-03ND
2016-08-17ND
2017-08-16ND
2017-08-16ND
2017-08-16ND
2017-08-16ND
2017-08-16ND
2017-08-16ND
2017-08-16ND
2017-08-16ND
2017-11-28ND
2017-12-05ND