Silver
Kent 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.
43
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 | 6 | 0 | ND |
| 2015 | ND | 10 | 0 | ND |
| 2016 | ND | 5 | 0 | ND |
| 2017 | ND | 7 | 0 | ND |
| 2018 | ND | 5 | 0 | ND |
| 2019 | ND | 10 | 0 | ND |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-06-09 | 08435 | ND |
| 2014-06-09 | 08435 | ND |
| 2014-06-24 | 09330 | ND |
| 2014-06-24 | 09330 | ND |
| 2014-07-15 | 10754 | ND |
| 2014-07-15 | 10755 | ND |
| 2015-06-01 | 08379 | ND |
| 2015-06-01 | 08379 | ND |
| 2015-07-06 | 10457 | ND |
| 2015-07-06 | 10458 | ND |
| 2015-07-06 | 10460 | ND |
| 2015-07-06 | 10460 | ND |
| 2015-07-06 | 10456 | ND |
| 2015-07-07 | 10459 | ND |
| 2015-07-07 | 10459 | ND |
| 2015-07-21 | 11495 | ND |
| 2016-07-05 | ND | |
| 2016-07-05 | ND | |
| 2016-07-11 | ND | |
| 2016-07-11 | ND | |
| 2016-07-11 | ND | |
| 2017-07-11 | ND | |
| 2017-07-11 | ND | |
| 2017-07-11 | ND | |
| 2017-07-11 | ND | |
| 2017-07-11 | ND | |
| 2017-09-05 | ND | |
| 2017-09-05 | ND | |
| 2018-07-16 | ND | |
| 2018-07-16 | ND | |
| 2018-07-17 | ND | |
| 2018-08-07 | ND | |
| 2018-08-07 | ND | |
| 2019-07-02 | ND | |
| 2019-07-02 | ND | |
| 2019-07-02 | ND | |
| 2019-07-12 | ND | |
| 2019-07-12 | ND | |
| 2019-07-16 | ND | |
| 2019-07-16 | ND | |
| 2019-07-22 | ND | |
| 2019-07-22 | ND | |
| 2019-07-23 | ND |