Silver
Quint-mar Water Authority
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.
12
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 | 5 | 0 | ND |
| 2020 | ND | 1 | 0 | ND |
| 2021 | N/A | 0 | 0 | N/A |
| 2022 | 0.185 ppb | 5 | 2 | ND - 0.511 ppb |
| 2023 | ND | 1 | 0 | ND |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2019-04-17 | AB34282 | ND |
| 2019-04-17 | AB34283 | ND |
| 2019-04-17 | AB34284 | ND |
| 2019-04-17 | AB34285 | ND |
| 2019-04-17 | AB34286 | ND |
| 2020-07-20 | AB43469 | ND |
| 2022-10-18 | AB63056 | ND |
| 2022-10-18 | AB63057 | 0.413 ppb |
| 2022-10-18 | AB63058 | 0.511 ppb |
| 2022-10-18 | AB63059 | ND |
| 2022-10-18 | AB63060 | ND |
| 2023-07-17 | AB69864 | ND |