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EWG's Tap Water Database — 2019 UPDATE

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Silver

Connecticut Water Company - Shoreline Region-chester 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.

 

15

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND20ND
2013ND20ND
2014ND40ND
2015ND20ND
2016ND30ND
2017ND20ND

ppb = parts per billion

All test results

Date Lab ID Result
2012-01-04070IOC1ND
2012-01-04071IOC1ND
2013-01-08245IOC1ND
2013-01-08247IOC1ND
2014-01-29140130CWCCIOC1ND
2014-01-29140130CWCFIOC1ND
2014-08-13BG93531IOC1ND
2014-12-04BH49355IOC1ND
2015-02-12BH73176IOC1ND
2015-02-12BH73175IOCRND
2016-01-27BK58353IOC1ND
2016-01-27BK58356IOCRND
2016-05-25BN40398IOC1ND
2017-01-18BX33132IOC1ND
2017-06-12BY37361IOCRND