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EWG's Tap Water Database — 2019 UPDATE

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Silver

City of Grand Prairie

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.

 

14

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
2013N/A00N/A
2014ND80ND
2015N/A00N/A
2016N/A00N/A
2017ND60ND

ppb = parts per billion

All test results

Date Lab ID Result
2014-04-23Q1412991005ND
2014-06-04Q1419331004ND
2014-06-26Q1424023031ND
2014-06-26Q1424023012ND
2014-06-26Q1424023011ND
2014-06-26Q1424023010ND
2014-09-10Q1442991008ND
2014-09-10Q1442991007ND
2017-01-05Q1700632004ND
2017-01-05Q1700632018ND
2017-06-27Q1726535028ND
2017-06-27Q1726535003ND
2017-06-27Q1726535027ND
2017-06-27Q1726535002ND