Silver
Purcellville, 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.
17
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 | 4 | 0 | ND |
| 2015 | ND | 2 | 0 | ND |
| 2016 | ND | 2 | 0 | ND |
| 2017 | ND | 4 | 0 | ND |
| 2018 | ND | 2 | 0 | ND |
| 2019 | ND | 3 | 0 | ND |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-02-26 | E131208334 | ND |
| 2014-06-10 | E140304169 | ND |
| 2014-06-10 | E140304181 | ND |
| 2014-06-26 | E140304175 | ND |
| 2015-03-26 | VA010-DCLS | ND |
| 2015-05-19 | VA010-DCLS | ND |
| 2016-06-15 | E160305750 | ND |
| 2016-11-02 | E160805470 | ND |
| 2017-02-07 | E161201335 | ND |
| 2017-05-16 | E170300429 | ND |
| 2017-05-16 | E170300435 | ND |
| 2017-05-23 | E170300447 | ND |
| 2018-02-27 | E180100341 | ND |
| 2018-05-23 | E180303856 | ND |
| 2019-03-21 | E190302939 | ND |
| 2019-03-21 | E190302950 | ND |
| 2019-05-29 | E190304845 | ND |