Know Your Environment. Protect Your Health.

Silver

Topsfield 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.

 

10

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND20ND
2019N/A00N/A
2020ND30ND
2021ND40ND
2022ND10ND
2023N/A00N/A

ppb = parts per billion

All test results

Date Result
2018-12-11ND
2018-12-11ND
2020-05-05ND
2020-05-05ND
2020-05-05ND
2021-04-13ND
2021-10-19ND
2021-10-19ND
2021-10-19ND
2022-09-27ND