Silver
O'Fallon
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.
10
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 | ND | 5 | 0 | ND |
| 2015 | N/A | 0 | 0 | N/A |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | ND | 5 | 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 |
|---|---|---|
| 2014-08-19 | AC33557 | ND |
| 2014-08-19 | AC33558 | ND |
| 2014-08-19 | AC33559 | ND |
| 2014-08-19 | AC33560 | ND |
| 2014-08-19 | AC33561 | ND |
| 2017-08-14 | AD03732 | ND |
| 2017-08-14 | AD03730 | ND |
| 2017-08-14 | AD03731 | ND |
| 2017-08-14 | AD03728 | ND |
| 2017-08-14 | AD03729 | ND |