Silver
Ponderosa Basin Mutual Water Company
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.
14
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 | N/A | 0 | 0 | N/A |
| 2015 | N/A | 0 | 0 | N/A |
| 2016 | ND | 7 | 0 | ND |
| 2017 | ND | 1 | 0 | ND |
| 2018 | N/A | 0 | 0 | N/A |
| 2019 | ND | 6 | 0 | ND |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2016-04-04 | 5802-004-0900 | ND |
| 2016-11-29 | 5802-007-1130 | ND |
| 2016-11-29 | 5802-009-1030 | ND |
| 2016-11-29 | 5802-010-1000 | ND |
| 2016-11-29 | 5802-011-0915 | ND |
| 2016-11-29 | 5802-012-0830 | ND |
| 2016-11-29 | 5802-014-0800 | ND |
| 2017-12-18 | 5802-007-0920 | ND |
| 2019-10-22 | 5802-007-1200 | ND |
| 2019-10-22 | 5802-009-1230 | ND |
| 2019-10-22 | 5802-010-1300 | ND |
| 2019-10-22 | 5802-011-1330 | ND |
| 2019-10-22 | 5802-012-1400 | ND |
| 2019-10-22 | 5802-014-1430 | ND |