Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

Silver

Ctwc - South Coventry System

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.

 

5

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

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

ppb = parts per billion

All test results

Date Lab ID Result
2015-05-28BJ23221IOC1ND
2015-10-08BK05107IOC1ND
2016-04-29BN21872IOC1ND
2017-04-13BY04007IOC1ND
2019-04-26IOC1 200529821ND