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EWG's Tap Water Database — 2021 UPDATE

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Silver

Alco Water Service

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
2014ND10ND
2015ND20ND
2016ND30ND
2017ND10ND
2018ND20ND
2019ND30ND

ppb = parts per billion

All test results

Date Lab ID Result
2014-02-269576-022-1110ND
2015-03-049576-004-1005ND
2015-09-299576-021-1115ND
2016-03-239576-001-1255ND
2016-03-239576-007-1215ND
2016-11-289576-011-1205ND
2017-03-149576-022-1110ND
2018-03-069576-004-0906ND
2018-09-279576-021-0807ND
2019-03-129576-001-1310ND
2019-03-129576-007-1050ND
2019-11-129576-011-0908ND