Silver
Danbury 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.
29
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 | 6 | 0 | ND |
| 2015 | ND | 4 | 0 | ND |
| 2016 | ND | 6 | 0 | ND |
| 2017 | ND | 4 | 0 | ND |
| 2018 | ND | 4 | 0 | ND |
| 2019 | ND | 5 | 0 | ND |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-06-24 | E406M77-2IOC1 | ND |
| 2014-06-24 | E406M77-3IOC1 | ND |
| 2014-06-24 | E406M77-4IOC1 | ND |
| 2014-06-24 | E406M77-1IOC1 | ND |
| 2014-10-21 | E410J14-1IOC1 | ND |
| 2014-10-21 | E410J14-3IOC1 | ND |
| 2015-05-05 | E505239-3IOC1 | ND |
| 2015-05-05 | E505239-4IOC1 | ND |
| 2015-05-05 | E505239-2IOC1 | ND |
| 2015-05-05 | E505239-1IOC1 | ND |
| 2016-08-09 | 187079CH | ND |
| 2016-08-09 | 187077CH | ND |
| 2016-08-09 | 187076GE | ND |
| 2016-08-09 | 187078GE | ND |
| 2016-12-14 | 192746GE | ND |
| 2016-12-14 | 192751GE | ND |
| 2017-05-18 | 198891GE | ND |
| 2017-05-18 | 198890GE | ND |
| 2017-06-15 | 200358GE | ND |
| 2017-06-15 | 200361GE | ND |
| 2018-04-12 | 212687GE | ND |
| 2018-04-12 | 212690GE | ND |
| 2018-10-12 | IOC1 200508940 | ND |
| 2018-10-12 | IOC1 200508939 | ND |
| 2019-04-11 | IOC1 200528182 | ND |
| 2019-04-11 | IOC1 200528181 | ND |
| 2019-04-11 | IOCR 200528185 | ND |
| 2019-04-11 | IOCR 200528187 | ND |
| 2019-05-16 | IOCR 200532591A | ND |