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EWG's Tap Water Database — 2021 UPDATE

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Silver

Colchester Commons

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
2014ND10ND
2015N/A00N/A
2016ND20ND
2017ND10ND
2018N/A00N/A
2019ND20ND

ppb = parts per billion

All test results

Date Lab ID Result
2014-07-29BG83659IOC1ND
2016-03-24BK87905IOC1ND
2016-03-24BK87906IOC1ND
2017-04-07BY00694IOC1ND
2019-10-21CE44559ND
2019-10-21CE44560ND