Silver
Harwich 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.
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2014 | ND | 5 | 0 | ND |
2015 | ND | 24 | 0 | ND |
2016 | ND | 16 | 0 | ND |
2017 | ND | 17 | 0 | ND |
2018 | ND | 5 | 0 | ND |
2019 | ND | 5 | 0 | ND |
ppb = parts per billion
All test results
Date | Result |
---|---|
2014-12-16 | ND |
2014-12-16 | ND |
2014-12-17 | ND |
2014-12-17 | ND |
2014-12-18 | ND |
2015-09-24 | ND |
2015-09-24 | ND |
2015-09-24 | ND |
2015-09-24 | ND |
2015-09-24 | ND |
2015-09-24 | ND |
2015-09-24 | ND |
2015-09-24 | ND |
2015-09-24 | ND |
2015-09-24 | ND |
2015-09-24 | ND |
2015-09-24 | ND |
2015-09-24 | ND |
2015-09-24 | ND |
2015-09-24 | ND |
2015-11-17 | ND |
2015-11-17 | ND |
2015-11-17 | ND |
2015-11-17 | ND |
2015-11-17 | ND |
2015-11-17 | ND |
2015-11-17 | ND |
2015-11-17 | ND |
2015-11-17 | ND |
2016-11-07 | ND |
2016-11-07 | ND |
2016-11-07 | ND |
2016-11-07 | ND |
2016-11-07 | ND |
2016-11-07 | ND |
2016-11-08 | ND |
2016-11-08 | ND |
2016-11-08 | ND |
2016-11-08 | ND |
2016-11-08 | ND |
2016-11-28 | ND |
2016-11-28 | ND |
2016-11-28 | ND |
2016-11-28 | ND |
2016-12-12 | ND |
2017-01-18 | ND |
2017-12-05 | ND |
2017-12-05 | ND |
2017-12-05 | ND |
2017-12-05 | ND |
2017-12-05 | ND |
2017-12-05 | ND |
2017-12-05 | ND |
2017-12-06 | ND |
2017-12-12 | ND |
2017-12-12 | ND |
2017-12-19 | ND |
2017-12-20 | ND |
2017-12-20 | ND |
2017-12-21 | ND |
2017-12-21 | ND |
2017-12-21 | ND |
2018-12-10 | ND |
2018-12-10 | ND |
2018-12-10 | ND |
2018-12-10 | ND |
2018-12-10 | ND |
2019-12-03 | ND |
2019-12-03 | ND |
2019-12-03 | ND |
2019-12-03 | ND |
2019-12-04 | ND |