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EWG's Tap Water Database — 2019 UPDATE

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Silver

De Pere Water Department

NOTE: De Pere Water Department purchases water from Central Brown Co. Water Authority which is required to test for silver. Sample information shown below was taken by Central Brown Co. Water Authority.

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.

 

0

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012N/A00N/A
2013N/A00N/A
2014ND10ND
2015N/A00N/A
2016N/A00N/A
2017N/A00N/A

ppb = parts per billion

All test results

NOTE: De Pere Water Department purchases water from Central Brown Co. Water Authority which is required to test for silver. Sample information shown below was taken by Central Brown Co. Water Authority.

Date Lab ID Result