Silver
Park Ridge Water Department
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.
29
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 | 15 | 0 | ND |
| 2015 | N/A | 0 | 0 | N/A |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | ND | 14 | 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 |
|---|---|---|
| 2014-08-13 | 4080451-01 | ND |
| 2014-08-13 | 4080451-14 | ND |
| 2014-08-13 | 4080451-02 | ND |
| 2014-08-13 | 4080451-13 | ND |
| 2014-08-13 | 4080451-03 | ND |
| 2014-08-13 | 4080451-12 | ND |
| 2014-08-13 | 4080451-04 | ND |
| 2014-08-13 | 4080451-11 | ND |
| 2014-08-13 | 4080451-05 | ND |
| 2014-08-13 | 4080451-10 | ND |
| 2014-08-13 | 4080451-06 | ND |
| 2014-08-13 | 4080451-09 | ND |
| 2014-08-13 | 4080451-07 | ND |
| 2014-08-13 | 4080451-08 | ND |
| 2014-09-03 | 4090135-01 | ND |
| 2017-08-08 | 7080293-08 | ND |
| 2017-08-08 | 7080293-09 | ND |
| 2017-08-08 | 7080293-07 | ND |
| 2017-08-08 | 7080293-10 | ND |
| 2017-08-08 | 7080293-06 | ND |
| 2017-08-08 | 7080293-11 | ND |
| 2017-08-08 | 7080293-05 | ND |
| 2017-08-08 | 7080293-04 | ND |
| 2017-08-08 | 7080293-12 | ND |
| 2017-08-08 | 7080293-03 | ND |
| 2017-08-08 | 7080293-13 | ND |
| 2017-08-08 | 7080293-02 | ND |
| 2017-08-08 | 7080293-14 | ND |
| 2017-08-08 | 7080293-01 | ND |