Menu

EWG's Tap Water Database — 2019 UPDATE

Donate

Silver

City of Gardner

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.

 

6

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND10ND
2013ND10ND
2014ND10ND
2015ND10ND
2016ND10ND
2017ND10ND

ppb = parts per billion

All test results

Date Lab ID Result
2012-05-09578701WSND
2013-05-13595986WSND
2014-04-22100215ND
2015-04-20315823ND
2016-04-19530342ND
2017-04-18743894ND