Silver
Bethesda WSC
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.
27
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 | N/A | 0 | 0 | N/A |
| 2015 | N/A | 0 | 0 | N/A |
| 2016 | ND | 15 | 0 | ND |
| 2017 | ND | 3 | 0 | ND |
| 2018 | N/A | 0 | 0 | N/A |
| 2019 | ND | 9 | 0 | ND |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2016-02-17 | Q1607184007 | ND |
| 2016-02-17 | Q1607184006 | ND |
| 2016-03-21 | Q1611365002 | ND |
| 2016-04-20 | Q1615721010 | ND |
| 2016-04-20 | Q1615721009 | ND |
| 2016-04-20 | Q1615721008 | ND |
| 2016-10-20 | Q1644787015 | ND |
| 2016-10-20 | Q1644787019 | ND |
| 2016-10-20 | Q1644787014 | ND |
| 2016-10-20 | Q1644787018 | ND |
| 2016-10-20 | Q1644787013 | ND |
| 2016-11-08 | Q1648213001 | ND |
| 2016-11-08 | Q1648213003 | ND |
| 2016-11-08 | Q1648213002 | ND |
| 2016-11-08 | Q1648213042 | ND |
| 2017-01-31 | Q1704122018 | ND |
| 2017-01-31 | Q1704122017 | ND |
| 2017-10-17 | Q1753293029 | ND |
| 2019-01-15 | Q1901990010 | ND |
| 2019-01-15 | Q1901990009 | ND |
| 2019-01-15 | Q1901990008 | ND |
| 2019-04-11 | Q1914886021 | ND |
| 2019-04-11 | Q1914886020 | ND |
| 2019-04-11 | Q1914886019 | ND |
| 2019-04-11 | Q1914886018 | ND |
| 2019-04-11 | Q1914886017 | ND |
| 2019-10-07 | Q1971784001 | ND |