Silver
Union PWS
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.
13
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 | 6 | 0 | ND |
| 2015 | ND | 1 | 0 | ND |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | ND | 6 | 0 | ND |
| 2018 | N/A | 0 | 0 | N/A |
| 2019 | N/A | 0 | 0 | N/A |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-08-20 | AC33589 | ND |
| 2014-08-20 | AC33590 | ND |
| 2014-08-20 | AC33591 | ND |
| 2014-09-09 | AC34880 | ND |
| 2014-09-09 | AC34882 | ND |
| 2014-09-09 | AC34881 | ND |
| 2015-11-04 | AC63687 | ND |
| 2017-08-21 | AD03759 | ND |
| 2017-08-21 | AD03758 | ND |
| 2017-08-21 | AD03760 | ND |
| 2017-08-22 | AD03756 | ND |
| 2017-08-22 | AD03757 | ND |
| 2017-08-22 | AD03761 | ND |