Silver
Bridgewater 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.
23
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 |
|---|---|---|---|---|
| 2014 | ND | 13 | 0 | ND |
| 2015 | ND | 4 | 0 | ND |
| 2016 | ND | 4 | 0 | ND |
| 2017 | N/A | 0 | 0 | N/A |
| 2018 | N/A | 0 | 0 | N/A |
| 2019 | ND | 2 | 0 | ND |
ppb = parts per billion
All test results
| Date | Result |
|---|---|
| 2014-01-27 | ND |
| 2014-01-27 | ND |
| 2014-01-27 | ND |
| 2014-01-27 | ND |
| 2014-01-27 | ND |
| 2014-01-27 | ND |
| 2014-01-27 | ND |
| 2014-01-27 | ND |
| 2014-01-27 | ND |
| 2014-01-27 | ND |
| 2014-01-27 | ND |
| 2014-02-11 | ND |
| 2014-02-12 | ND |
| 2015-02-19 | ND |
| 2015-03-05 | ND |
| 2015-03-05 | ND |
| 2015-03-05 | ND |
| 2016-04-07 | ND |
| 2016-04-07 | ND |
| 2016-04-08 | ND |
| 2016-06-08 | ND |
| 2019-04-17 | ND |
| 2019-04-17 | ND |