Silver
Sfpuc-pleasanton Wells
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.
17
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 | 3 | 0 | ND |
| 2019 | ND | 3 | 0 | ND |
| 2020 | ND | 3 | 0 | ND |
| 2021 | ND | 2 | 0 | ND |
| 2022 | ND | 3 | 0 | ND |
| 2023 | ND | 3 | 0 | ND |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2018-06-18 | CA0110018_007_007-201806181235 | ND |
| 2018-06-18 | CA0110018_004_004-201806181217 | ND |
| 2018-06-18 | CA0110018_005_005-201806181151 | ND |
| 2019-06-17 | CA0110018_007_007-201906170925 | ND |
| 2019-06-17 | CA0110018_005_005-201906170900 | ND |
| 2019-06-26 | CA0110018_004_004-201906261235 | ND |
| 2020-06-16 | CA0110018_004_004-202006160834 | ND |
| 2020-06-16 | CA0110018_007_007-202006161010 | ND |
| 2020-06-16 | CA0110018_005_005-202006160922 | ND |
| 2021-06-22 | CA0110018_007_007-202106221000 | ND |
| 2021-06-23 | CA0110018_005_005-202106231035 | ND |
| 2022-06-14 | CA0110018_004_004-202206140920 | ND |
| 2022-06-14 | CA0110018_005_005-202206140840 | ND |
| 2022-06-14 | CA0110018_007_007-202206140945 | ND |
| 2023-06-22 | CA0110018_004_004-202306220911 | ND |
| 2023-06-22 | CA0110018_007_007-202306220936 | ND |
| 2023-09-14 | CA0110018_005_005-202309140950 | ND |