Know Your Environment. Protect Your Health.

Silver

Groton 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.

 

13

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND20ND
2019ND20ND
2020ND20ND
2021ND20ND
2022ND30ND
2023ND20ND

ppb = parts per billion

All test results

Date Lab ID Result
2018-11-2928467IOCRND
2018-11-2928430IOC1ND
2019-11-2030564IOCRND
2019-11-2030566IOC1ND
2020-12-0132781IOCRND
2020-12-0132783IOC1ND
2021-10-2734806IOCRND
2021-10-2734812IOC1ND
2022-09-1536588IOCRND
2022-09-1536587IOCRND
2022-09-1537093IOC1ND
2023-09-1438748IOCRND
2023-09-1438742IOC1ND