Silver
Madera Co. Sa16 Sumner Hill-water System
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.
6
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 | ND | 1 | 0 | ND |
| 2019 | ND | 1 | 0 | ND |
| 2020 | ND | 1 | 0 | ND |
| 2021 | ND | 1 | 0 | ND |
| 2022 | ND | 1 | 0 | ND |
| 2023 | ND | 1 | 0 | ND |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2018-01-09 | CA2000729_001_001-201801090930 | ND |
| 2019-01-22 | CA2000729_001_001-201901220945 | ND |
| 2020-01-30 | CA2000729_001_001-202001301100 | ND |
| 2021-01-20 | CA2000729_001_001-202101201030 | ND |
| 2022-01-25 | CA2000729_001_001-202201250835 | ND |
| 2023-03-22 | CA2000729_001_001-202303221150 | ND |