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EWG's Tap Water Database — 2021 UPDATE

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Silver

Joshua Basin Water District

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.

 

15

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND30ND
2015ND30ND
2016ND20ND
2017ND20ND
2018ND30ND
2019ND20ND

ppb = parts per billion

All test results

Date Lab ID Result
2014-03-173761-005-1127ND
2014-03-173761-008-0810ND
2014-03-173761-009-0840ND
2015-11-183761-005-1135ND
2015-11-183761-008-0730ND
2015-11-183761-009-0850ND
2016-02-033761-011-0851ND
2016-03-093761-010-0730ND
2017-03-013761-005-1130ND
2017-03-013761-009-0850ND
2018-05-103761-008-0600ND
2018-11-053761-005-0500ND
2018-11-053761-009-0530ND
2019-02-113761-010-0730ND
2019-02-113761-011-0815ND