Menu

EWG's Tap Water Database — 2019 UPDATE

Donate

Silver

Attleboro Water Department

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.

 

17

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012N/A00N/A
2013ND20ND
2014ND50ND
2015ND30ND
2016ND40ND
2017ND30ND

ppb = parts per billion

All test results

Date Result
2013-07-01ND
2013-07-01ND
2014-04-03ND
2014-04-03ND
2014-04-03ND
2014-11-05ND
2014-11-05ND
2015-04-02ND
2015-08-21ND
2015-10-01ND
2016-04-07ND
2016-04-07ND
2016-08-03ND
2016-08-03ND
2017-04-06ND
2017-04-10ND
2017-06-27ND