Silver
Decatur Waterworks
NOTE: Decatur Waterworks purchases water from Benton - Washington Regional Public Water Authority which is required to test for silver. Sample information shown below was taken by Benton - Washington Regional Public 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.
Samples
Samples exceeding legal limit (MCL)
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 | 4 | 0 | ND |
| 2020 | ND | 3 | 0 | ND |
| 2021 | ND | 2 | 0 | ND |
| 2022 | ND | 1 | 0 | ND |
| 2023 | ND | 2 | 0 | ND |
ppb = parts per billion
All test results
NOTE: Decatur Waterworks purchases water from Benton - Washington Regional Public Water Authority which is required to test for silver. Sample information shown below was taken by Benton - Washington Regional Public Water Authority.
| Date | Lab ID | Result |
|---|---|---|
| 2018-05-15 | Y181370009 | ND |
| 2019-04-02 | Y190930004 | ND |
| 2020-04-14 | Y201070017 | ND |
| 2020-08-25 | Y202400070 | ND |
| 2020-11-02 | Y203100051 | ND |
| 2021-02-23 | Y210560002 | ND |
| 2021-05-04 | Y211260044 | ND |
| 2022-05-04 | Y221250005 | ND |
| 2023-04-04 | Y230960052 | ND |
| 2023-04-11 | Y231020007 | ND |