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EWG's Tap Water Database — 2021 UPDATE

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Silver

Neosho

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.

 

13

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
2014ND30ND
2015ND20ND
2016ND20ND
2017ND20ND
2018ND20ND
2019ND20ND

ppb = parts per billion

All test results

Date Lab ID Result
2014-03-18AC20077ND
2014-03-18AC20078ND
2014-03-18AC20079ND
2015-03-25AC43838ND
2015-03-25AC43839ND
2016-03-14AC67816ND
2016-03-14AC67817ND
2017-03-27AC92326ND
2017-03-28AC92325ND
2018-05-14AD16746ND
2018-05-14AD16747ND
2019-03-19AD40683ND
2019-03-19AD40684ND