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EWG's Tap Water Database — 2021 UPDATE

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Silver

Oswego

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
2013N/A00N/A
2014N/A00N/A
2015ND70ND
2016N/A00N/A
2017ND10ND
2018ND70ND
2019N/A00N/A

ppb = parts per billion

All test results

Date Lab ID Result
2015-02-101502666-001AND
2015-02-101502666-002AND
2015-02-101502666-003AND
2015-02-101502666-004AND
2015-08-051508379-001AND
2015-08-051508379-002AND
2015-08-051508379-003AND
2017-08-251708N44-001AND
2018-01-291801G97-001AND
2018-01-291801G97-002AND
2018-01-291801G97-003AND
2018-01-291801G97-004AND
2018-08-061808389-001AND
2018-08-061808389-002AND
2018-08-061808389-003AND