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EWG's Tap Water Database — 2021 UPDATE

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Silver

Boone County Cons. PWSD1

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.

 

26

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
2015ND130ND
2016N/A00N/A
2017N/A00N/A
2018ND130ND
2019N/A00N/A

ppb = parts per billion

All test results

Date Lab ID Result
2015-02-19AC42197ND
2015-02-19AC42202ND
2015-02-19AC42195ND
2015-02-19AC42200ND
2015-02-19AC42203ND
2015-02-19AC42193ND
2015-02-19AC42192ND
2015-02-19AC42196ND
2015-02-19AC42204ND
2015-02-19AC42194ND
2015-02-19AC42201ND
2015-02-19AC42199ND
2015-02-19AC42198ND
2018-03-07AD14465ND
2018-03-07AD14477ND
2018-03-07AD14476ND
2018-03-07AD14474ND
2018-03-07AD14473ND
2018-03-07AD14472ND
2018-03-07AD14471ND
2018-03-07AD14470ND
2018-03-07AD14468ND
2018-03-07AD14475ND
2018-03-07AD14467ND
2018-03-07AD14469ND
2018-05-24AD26903ND