Silver
Louisa County Water Authority
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.
8
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 | 1 | 0 | ND |
| 2015 | ND | 1 | 0 | ND |
| 2016 | ND | 2 | 0 | ND |
| 2017 | ND | 1 | 0 | ND |
| 2018 | ND | 1 | 0 | ND |
| 2019 | ND | 2 | 0 | ND |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-03-12 | E131201512 | ND |
| 2015-03-04 | VA010-DCLS | ND |
| 2016-01-13 | E151203793 | ND |
| 2016-01-13 | E151203790 | ND |
| 2017-06-13 | E170203189 | ND |
| 2018-06-19 | E180302696 | ND |
| 2019-02-25 | E190103686 | ND |
| 2019-06-25 | E190305324 | ND |