Silver
Northstone Gardens
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.
9
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 | N/A | 0 | 0 | N/A |
| 2015 | ND | 1 | 0 | ND |
| 2016 | ND | 4 | 0 | ND |
| 2017 | N/A | 0 | 0 | N/A |
| 2018 | ND | 3 | 0 | ND |
| 2019 | ND | 1 | 0 | ND |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2015-04-29 | E504O51-1IOC1 | ND |
| 2016-03-21 | E603I93-1IOC1 | ND |
| 2016-04-13 | E604D77-1IOC1 | ND |
| 2016-08-08 | E608970-1IOC1 | ND |
| 2016-10-24 | E610O78-1IOC1 | ND |
| 2018-04-24 | CA35450IOC1 | ND |
| 2018-07-24 | CA97524 | ND |
| 2018-09-17 | CB32865 | ND |
| 2019-06-26 | CD45967 | ND |