Silver
Dover 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.
15
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 | 3 | 0 | ND |
| 2015 | N/A | 0 | 0 | N/A |
| 2016 | ND | 4 | 0 | ND |
| 2017 | ND | 5 | 0 | ND |
| 2018 | ND | 1 | 0 | ND |
| 2019 | ND | 2 | 0 | ND |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-02-18 | A400694002 | ND |
| 2014-07-14 | A404793003 | ND |
| 2014-07-23 | A405333004 | ND |
| 2016-07-06 | B605223003 | ND |
| 2016-07-07 | B605299002 | ND |
| 2016-07-13 | B605689002 | ND |
| 2016-07-25 | B606384002 | ND |
| 2017-06-01 | B703156002 | ND |
| 2017-07-19 | B705657004 | ND |
| 2017-07-20 | B705749002 | ND |
| 2017-07-20 | B705749004 | ND |
| 2017-07-20 | B705749006 | ND |
| 2018-05-15 | B802449002 | ND |
| 2019-07-10 | B905242002 | ND |
| 2019-07-10 | B905242004 | ND |