Silver
Drakes Branch, Town of
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.
9
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 | N/A | 0 | 0 | N/A |
| 2015 | ND | 1 | 0 | ND |
| 2016 | ND | 3 | 0 | ND |
| 2017 | N/A | 0 | 0 | N/A |
| 2018 | ND | 2 | 0 | ND |
| 2019 | ND | 3 | 0 | ND |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2015-03-09 | VA010-DCLS | ND |
| 2016-03-23 | E151205019 | ND |
| 2016-03-23 | E151205022 | ND |
| 2016-03-23 | E151205020 | ND |
| 2018-05-16 | E180200927 | ND |
| 2018-06-26 | E180401005 | ND |
| 2019-03-27 | E190101648 | ND |
| 2019-03-27 | E190101649 | ND |
| 2019-03-27 | E190101651 | ND |