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EWG's Tap Water Database — 2021 UPDATE

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Silver

Westchester County WD #2

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
2015ND10ND
2016ND10ND
2017ND10ND
2018ND10ND
2019ND10ND

ppb = parts per billion

All test results

Date Lab ID Result
2014-05-131405A34-001 INSND
2015-05-211505G33-001 INSND
2016-05-11S007231-04 INSND
2017-05-11S018299-01 INSND
2018-05-117051461001 INSND
2019-05-317091711001 INSND