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EWG's Tap Water Database — 2021 UPDATE

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Silver

Southern 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.

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53

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
2014ND130ND
2015ND20ND
2016ND110ND
2017ND140ND
2018ND20ND
2019ND110ND

ppb = parts per billion

All test results

Date Lab ID Result
2014-06-12Q1421120003ND
2014-06-30Q1424477008ND
2014-06-30Q1424477007ND
2014-06-30Q1424477006ND
2014-06-30Q1424477005ND
2014-08-14Q1436466013ND
2014-08-14Q1436466012ND
2014-08-14Q1436466011ND
2014-08-14Q1436466010ND
2014-08-14Q1436466009ND
2014-10-02Q1450544005ND
2014-10-02Q1450544004ND
2014-12-03Q1458323001ND
2015-04-02Q1512260044ND
2015-04-02Q1512260043ND
2016-01-07Q1600474006ND
2016-04-07Q1613819020ND
2016-04-07Q1613819019ND
2016-04-07Q1613819018ND
2016-10-06Q1642489022ND
2016-10-06Q1642489021ND
2016-10-06Q1642489020ND
2016-10-06Q1642489019ND
2016-10-06Q1642489018ND
2016-10-27Q1646014006ND
2016-10-27Q1646014005ND
2017-01-04Q1700369007ND
2017-01-04Q1700369027ND
2017-01-04Q1700369026ND
2017-01-04Q1700369006ND
2017-04-11Q1714804016ND
2017-04-11Q1714804015ND
2017-04-11Q1714804014ND
2017-04-11Q1714804013ND
2017-07-10Q1727874008ND
2017-08-15Q1735757011ND
2017-09-13Q1743425015ND
2017-09-13Q1743425014ND
2017-10-17Q1753564026ND
2017-10-17Q1753564004ND
2018-03-01Q1808766014ND
2018-08-07Q1831211009ND
2019-02-21Q1907660007ND
2019-02-21Q1907660006ND
2019-03-26Q1912175021ND
2019-03-26Q1912175001ND
2019-03-26Q1912175020ND
2019-03-26Q1912175019ND
2019-03-26Q1912175018ND
2019-08-08Q1952585030ND
2019-08-08Q1952585006ND
2019-08-08Q1952585032ND
2019-08-08Q1952585031ND