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EWG's Tap Water Database — 2021 UPDATE

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Silver

Opelika Utilities

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
2013N/A00N/A
2014ND20ND
2015ND20ND
2016ND20ND
2017ND40ND
2018N/A00N/A
2019ND20ND

ppb = parts per billion

All test results

Date Lab ID Result
2014-05-0681605062014-2IND
2014-05-0681605062014-1IND
2015-04-21816-042115-IOC-1ND
2015-04-21816-042115-IOC-2ND
2016-05-0481605042016-1ND
2016-05-0481605042016-2ND
2017-07-19169916-01INOND
2017-07-1981607172017-1ND
2017-07-19169915-01INOND
2017-07-1981607172017-2ND
2019-03-20188571-01ND
2019-03-20188570-01ND