Silver
Alta Sierra 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.
7
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 |
|---|---|---|---|---|
| 2018 | N/A | 0 | 0 | N/A |
| 2019 | ND | 1 | 0 | ND |
| 2020 | ND | 2 | 0 | ND |
| 2021 | N/A | 0 | 0 | N/A |
| 2022 | ND | 2 | 0 | ND |
| 2023 | ND | 2 | 0 | ND |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2019-05-13 | CA1500209_002_002-201905131005 | ND |
| 2020-08-12 | CA1500209_001_001-202008121339 | ND |
| 2020-08-12 | CA1500209_003_003-202008121225 | ND |
| 2022-05-11 | CA1500209_002_002-202205111145 | ND |
| 2022-11-29 | CA1500209_006_006-202211291100 | ND |
| 2023-08-23 | CA1500209_001_001-202308231055 | ND |
| 2023-08-23 | CA1500209_003_003-202308231105 | ND |