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EWG's Tap Water Database — 2021 UPDATE

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Silver

New Braunfels 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.

 

25

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND10ND
2015ND20ND
2016ND80ND
2017ND60ND
2018ND20ND
2019ND60ND

ppb = parts per billion

All test results

Date Lab ID Result
2014-01-31AC41010ND
2015-01-21AC77025ND
2015-03-24AC85813ND
2016-01-12AD17496ND
2016-01-12AD17491ND
2016-02-24AD25305ND
2016-02-24AD25301ND
2016-02-24AD25306ND
2016-02-24AD25300ND
2016-02-24AD25304ND
2016-02-24AD25302ND
2017-01-12AD64631ND
2017-03-29AD77376ND
2017-05-30AD85826ND
2017-05-30AD85823ND
2017-05-30AD85824ND
2017-05-30AD85825ND
2018-02-05AE12118ND
2018-10-29AE44697ND
2019-02-04AE52632ND
2019-02-04AE52631ND
2019-03-18AE58659ND
2019-03-18AE58656ND
2019-03-18AE58657ND
2019-03-18AE58658ND