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.
9
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 |
|---|---|---|---|---|
| 2018 | ND | 1 | 0 | ND |
| 2019 | N/A | 0 | 0 | N/A |
| 2020 | ND | 2 | 0 | ND |
| 2021 | ND | 1 | 0 | ND |
| 2022 | ND | 2 | 0 | ND |
| 2023 | ND | 3 | 0 | ND |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2018-05-23 | L996745-1 | ND |
| 2020-09-14 | 20171277001_IIOC | ND |
| 2020-11-05 | L1281892-01 | ND |
| 2021-05-18 | L1354301-01 | ND |
| 2022-03-16 | 35703897001_IIOC | ND |
| 2022-07-26 | DC06125-01 | ND |
| 2023-01-19 | 35773807001_IIOC | ND |
| 2023-01-19 | 35773807002_IIOC | ND |
| 2023-02-20 | DD01535-01 | ND |