Silver
Wayland 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.
30
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 | 5 | 0 | ND |
| 2015 | ND | 5 | 0 | ND |
| 2016 | ND | 5 | 0 | ND |
| 2017 | ND | 5 | 0 | ND |
| 2018 | 1.000 ppb | 5 | 1 | ND - 5.00 ppb |
| 2019 | ND | 5 | 0 | ND |
ppb = parts per billion
All test results
| Date | Result |
|---|---|
| 2014-04-01 | ND |
| 2014-04-01 | ND |
| 2014-04-01 | ND |
| 2014-04-01 | ND |
| 2014-04-01 | ND |
| 2015-04-07 | ND |
| 2015-04-07 | ND |
| 2015-04-07 | ND |
| 2015-04-07 | ND |
| 2015-04-07 | ND |
| 2016-01-19 | ND |
| 2016-01-19 | ND |
| 2016-01-19 | ND |
| 2016-01-19 | ND |
| 2016-03-28 | ND |
| 2017-01-03 | ND |
| 2017-01-03 | ND |
| 2017-01-03 | ND |
| 2017-01-03 | ND |
| 2017-01-03 | ND |
| 2018-01-16 | 5.00 ppb |
| 2018-01-16 | ND |
| 2018-01-16 | ND |
| 2018-01-16 | ND |
| 2018-01-16 | ND |
| 2019-01-08 | ND |
| 2019-01-08 | ND |
| 2019-01-08 | ND |
| 2019-01-08 | ND |
| 2019-01-08 | ND |