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EWG's Tap Water Database — 2021 UPDATE

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Silver

Glendora Water Department

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.

 

16

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND30ND
2015ND10ND
2016ND40ND
2017ND30ND
2018ND10ND
2019ND40ND

ppb = parts per billion

All test results

Date Lab ID Result
2014-03-049588-008-1020ND
2014-09-099588-007-1030ND
2014-09-179588-006-1000ND
2015-09-099588-010-1010ND
2016-06-139588-015-0940ND
2016-06-139588-020-0855ND
2016-09-089588-002-1035ND
2016-09-089588-009-1015ND
2017-03-029588-008-0810ND
2017-09-079588-006-0910ND
2017-09-079588-007-0920ND
2018-09-149588-010-1025ND
2019-06-189588-015-0825ND
2019-06-189588-020-0800ND
2019-09-199588-002-0740ND
2019-09-199588-009-0910ND