Silver
Manchester 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.
24
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 |
|---|---|---|---|---|
| 2014 | ND | 8 | 0 | ND |
| 2015 | ND | 2 | 0 | ND |
| 2016 | ND | 2 | 0 | ND |
| 2017 | ND | 2 | 0 | ND |
| 2018 | ND | 8 | 0 | ND |
| 2019 | ND | 2 | 0 | ND |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-01-13 | AA63860-IOC1 | ND |
| 2014-01-13 | AA63865-IOC1 | ND |
| 2014-01-13 | AA63866-IOC1 | ND |
| 2014-01-13 | AA63858-IOCR | ND |
| 2014-01-14 | AA63882-IOC1 | ND |
| 2014-01-14 | AA63883-IOC1 | ND |
| 2014-01-15 | AA63905-IOC1 | ND |
| 2014-01-15 | AA63906-IOC1 | ND |
| 2015-02-12 | AA68577-IOC1 | ND |
| 2015-02-12 | AA68575-IOCR | ND |
| 2016-01-14 | AA72870-IOC1 | ND |
| 2016-01-14 | AA72868-IOCR | ND |
| 2017-02-17 | AA78200-IOC1 | ND |
| 2017-02-17 | AA78198-IOCR | ND |
| 2018-02-05 | AA82666-IOC1 | ND |
| 2018-02-05 | AA82672-IOC1 | ND |
| 2018-02-05 | AA82673-IOC1 | ND |
| 2018-02-06 | AA82689-IOC1 | ND |
| 2018-02-06 | AA82690-IOC1 | ND |
| 2018-02-07 | AA82711-IOC1 | ND |
| 2018-02-07 | AA82712-IOC1 | ND |
| 2018-02-23 | AA82899-IOCR | ND |
| 2019-05-03 | AA88242-IOC1 | ND |
| 2019-05-16 | AA88408-IOCR | ND |