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EWG's Tap Water Database — 2019 UPDATE

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Silver

Galveston County WCID 1

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.

 

6

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
2013ND30ND
2014N/A00N/A
2015N/A00N/A
2016ND30ND
2017N/A00N/A

ppb = parts per billion

All test results

Date Lab ID Result
2013-02-05AC09644ND
2013-02-05AC09646ND
2013-02-05AC09643ND
2016-01-26AD19987ND
2016-01-26AD19988ND
2016-06-27AD41840ND