Silver
Wallingford Water Department
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.
14
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 |
|---|---|---|---|---|
| 2013 | N/A | 0 | 0 | N/A |
| 2014 | ND | 2 | 0 | ND |
| 2015 | ND | 4 | 0 | ND |
| 2016 | ND | 2 | 0 | ND |
| 2017 | N/A | 0 | 0 | N/A |
| 2018 | ND | 4 | 0 | ND |
| 2019 | ND | 2 | 0 | ND |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-05-13 | 2648-04IOC1 | ND |
| 2014-05-13 | 2648-05IOCR | ND |
| 2015-04-13 | 2740-01IOC1 | ND |
| 2015-05-11 | 2740-02IOC1 | ND |
| 2015-05-11 | 2740-04IOCR | ND |
| 2015-06-01 | 2740-03IOC1 | ND |
| 2016-05-16 | BN33206IOC1 | ND |
| 2016-05-16 | BN33205IOCR | ND |
| 2018-03-12 | CA01121 | ND |
| 2018-03-12 | CA01122 | ND |
| 2018-03-12 | CA01120 | ND |
| 2018-07-17 | CA91980-02 | ND |
| 2019-03-06 | CC62592-01 | ND |
| 2019-03-06 | CC62593 | ND |