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EWG's Tap Water Database — 2021 UPDATE

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Silver

Montgomery Water Works

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.

 

35

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
2014ND30ND
2015ND80ND
2016ND80ND
2017ND10ND
2018ND80ND
2019ND70ND

ppb = parts per billion

All test results

Date Lab ID Result
2014-03-191403-00380-1ND
2014-06-171406-00205-1ND
2014-09-18AK91805ND
2015-09-01AL32946ND
2015-09-01AL32947ND
2015-09-01AL32948ND
2015-09-01AL32949ND
2015-09-01AL32950ND
2015-09-01AL32951ND
2015-09-01AL32952ND
2015-09-01AL32953ND
2016-09-15AL84124ND
2016-09-15AL84121ND
2016-09-15AL84125ND
2016-09-15AL84127ND
2016-09-15AL84126ND
2016-09-15AL84122ND
2016-09-15AL84123ND
2016-09-15AL84128ND
2017-09-12AM37420ND
2018-06-05AM76993ND
2018-06-05AM76992ND
2018-06-05AM76991ND
2018-06-06AM76997ND
2018-06-06AM76995ND
2018-06-06AM76996ND
2018-06-06AM76998ND
2018-06-06AM76994ND
2019-07-10AN36640ND
2019-07-10AN36639ND
2019-07-10AN36645ND
2019-07-10AN36643ND
2019-07-10AN36642ND
2019-07-10AN36644ND
2019-07-10AN36641ND