Silver
Clark Public Utilities
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.
20
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 | N/A | 0 | 0 | N/A |
| 2020 | N/A | 0 | 0 | N/A |
| 2021 | ND | 3 | 0 | ND |
| 2022 | ND | 14 | 0 | ND |
| 2023 | ND | 3 | 0 | ND |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2021-06-29 | 4136308 | ND |
| 2021-06-29 | 4136309 | ND |
| 2021-08-02 | 4171193 | ND |
| 2022-03-31 | 4266325 | ND |
| 2022-07-07 | 4329454 | ND |
| 2022-07-07 | 4329453 | ND |
| 2022-07-07 | 4329452 | ND |
| 2022-07-28 | 4328491 | ND |
| 2022-07-28 | 4329448 | ND |
| 2022-08-03 | 4328492 | ND |
| 2022-08-03 | 4329440 | ND |
| 2022-08-03 | 4329441 | ND |
| 2022-08-04 | 4329461 | ND |
| 2022-08-04 | 4329468 | ND |
| 2022-08-04 | 4329471 | ND |
| 2022-08-04 | 4328488 | ND |
| 2022-08-16 | 4364181 | ND |
| 2023-04-06 | 4439682 | ND |
| 2023-06-01 | 4474461 | ND |
| 2023-09-19 | 4531983 | ND |