Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

Silver

S S WSC

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.

 

12

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014ND20ND
2015ND10ND
2016ND30ND
2017ND30ND
2018N/A00N/A
2019ND30ND

ppb = parts per billion

All test results

Date Lab ID Result
2014-03-26AC48314ND
2014-03-26AC48313ND
2015-01-15AC76400ND
2016-01-21AD19194ND
2016-01-21AD19190ND
2016-01-21AD19193ND
2017-05-10AD83560ND
2017-05-10AD83559ND
2017-05-10AD83561ND
2019-03-28AE60414ND
2019-03-28AE60413ND
2019-03-28AE60412ND