Silver
Cullman Utilities Board
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.
6
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 | N/A | 0 | 0 | N/A |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-05-15 | AC69978-1 | ND |
| 2015-09-10 | AD21036 | ND |
| 2016-03-23 | 1603775-1 | ND |
| 2016-03-23 | 1603775-1 | ND |
| 2017-05-23 | 1707172-1 | ND |
| 2018-05-23 | L996745-1 | ND |