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EWG's Tap Water Database — 2021 UPDATE

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Silver

Burlington 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.

 

12

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND20ND
2015N/A00N/A
2016ND20ND
2017ND40ND
2018ND20ND
2019ND20ND

ppb = parts per billion

All test results

Date Result
2014-03-11ND
2014-03-11ND
2016-07-22ND
2016-07-22ND
2017-01-24ND
2017-01-24ND
2017-07-25ND
2017-07-25ND
2018-11-20ND
2018-11-20ND
2019-02-05ND
2019-02-07ND