Silver
Columbiana Water Works
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.
11
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 | ND | 7 | 0 | ND |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | N/A | 0 | 0 | N/A |
| 2018 | ND | 4 | 0 | ND |
| 2019 | N/A | 0 | 0 | N/A |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2015-01-26 | 150100273-1 | ND |
| 2015-01-26 | 150100273-2 | ND |
| 2015-01-26 | 150100273-3 | ND |
| 2015-01-26 | 150100273-4 | ND |
| 2015-01-26 | 150100273-5 | ND |
| 2015-07-27 | 1507-00371-1 | ND |
| 2015-07-27 | 1507-00371-2 | ND |
| 2018-01-22 | 180100277-1 | ND |
| 2018-01-22 | 180100277-5 | ND |
| 2018-01-22 | 180100277-2 | ND |
| 2018-01-22 | 180100277-3 | ND |