Silver
Fairfax 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.
40
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 |
|---|---|---|---|---|
| 2013 | N/A | 0 | 0 | N/A |
| 2014 | ND | 8 | 0 | ND |
| 2015 | ND | 4 | 0 | ND |
| 2016 | ND | 4 | 0 | ND |
| 2017 | ND | 8 | 0 | ND |
| 2018 | ND | 8 | 0 | ND |
| 2019 | ND | 8 | 0 | ND |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-01-30 | FW13122702-03_ME | ND |
| 2014-01-30 | FW13122701-03_ME | ND |
| 2014-04-24 | FW14032669-03_ME | ND |
| 2014-04-24 | FW14032670-03_ME | ND |
| 2014-07-24 | FW14061906-03_ME | ND |
| 2014-07-24 | FW14061907-03_ME | ND |
| 2014-10-30 | FW140923098-03_M | ND |
| 2014-10-30 | FW140923099-03_M | ND |
| 2015-01-27 | 00125-FAIRFAX CO | ND |
| 2015-04-09 | 00125-FAIRFAX CO | ND |
| 2015-07-09 | 00125-FAIRFAX CO | ND |
| 2015-10-15 | 00125-FAIRFAX CO | ND |
| 2016-01-14 | FW151231001-02_M | ND |
| 2016-04-14 | FW160316067-02_M | ND |
| 2016-07-14 | FW160617069-02_M | ND |
| 2016-10-13 | FW160922038-02_M | ND |
| 2017-01-26 | FW161216028-03_M | ND |
| 2017-01-26 | FW161216029-03_M | ND |
| 2017-04-13 | FW170328069-03_M | ND |
| 2017-04-13 | FW170328070-03_M | ND |
| 2017-07-13 | FW170628091-03_M | ND |
| 2017-07-13 | FW170628092-03_M | ND |
| 2017-10-12 | FW170927067-03_M | ND |
| 2017-10-12 | FW170927068-03_M | ND |
| 2018-01-25 | FW171226072-04_M | ND |
| 2018-01-25 | FW171226071-04_M | ND |
| 2018-04-12 | FW180315012-04_M | ND |
| 2018-04-12 | FW180315013-04_M | ND |
| 2018-07-12 | FW180615025-04_M | ND |
| 2018-07-12 | FW180615026-04_M | ND |
| 2018-10-11 | FW180926085-04_M | ND |
| 2018-10-11 | FW180926086-02_M | ND |
| 2019-01-03 | FW181218030-04_M | ND |
| 2019-01-03 | FW181218031-02_M | ND |
| 2019-04-11 | FW190319015-05_M | ND |
| 2019-04-11 | FW190319016-02_M | ND |
| 2019-07-11 | FW190626014-05_M | ND |
| 2019-07-11 | FW190626015-02_M | ND |
| 2019-10-03 | FW190923068-02_M | ND |
| 2019-10-03 | FW190923067-05_M | ND |