Silver
New London Department of Public 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.
11
Samples
0
Samples exceeding legal limit (MCL)
0
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2018 | ND | 2 | 0 | ND |
| 2019 | ND | 2 | 0 | ND |
| 2020 | ND | 2 | 0 | ND |
| 2021 | ND | 1 | 0 | ND |
| 2022 | ND | 2 | 0 | ND |
| 2023 | ND | 2 | 0 | ND |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2018-11-29 | 28420IOC1 | ND |
| 2018-11-29 | 28425IOCR | ND |
| 2019-11-20 | 30473IOC1 | ND |
| 2019-11-20 | 30469IOCR | ND |
| 2020-12-01 | 32746IOC1 | ND |
| 2020-12-01 | 32743IOCR | ND |
| 2021-10-27 | 34800IOCR | ND |
| 2022-09-15 | 36582IOC1 | ND |
| 2022-09-15 | 36581IOCR | ND |
| 2023-09-14 | 38752IOC1 | ND |
| 2023-09-14 | 38758IOCR | ND |