Silver
Westchester County Water District #3
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.
18
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 | 4 | 0 | ND |
| 2021 | ND | 4 | 0 | ND |
| 2022 | ND | 4 | 0 | ND |
| 2023 | ND | 4 | 0 | ND |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2018-10-02 | AU21376INS | ND |
| 2019-11-21 | AV24564INS | ND |
| 2020-04-28 | AW07856INS | ND |
| 2020-11-17 | AW22089INS | ND |
| 2020-12-15 | AW23891-INS | ND |
| 2020-12-15 | AW23893-INS | ND |
| 2021-04-06 | AX06359-INS | ND |
| 2021-10-29 | AX21799-INS | ND |
| 2021-11-09 | AX22576-INS | ND |
| 2021-11-09 | AX22573-INS | ND |
| 2022-04-11 | AY05984-INS | ND |
| 2022-10-19 | AY18880-INS | ND |
| 2022-11-01 | AY19681-INS | ND |
| 2022-11-01 | AY19679-INS | ND |
| 2023-04-25 | AZ07359-INS | ND |
| 2023-10-19 | AZ19381-INS | ND |
| 2023-11-01 | AZ20238-INS | ND |
| 2023-11-01 | AZ20240-INS | ND |