Silver
Green Valley SUD
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 |
|---|---|---|---|---|
| 2013 | N/A | 0 | 0 | N/A |
| 2014 | N/A | 0 | 0 | N/A |
| 2015 | N/A | 0 | 0 | N/A |
| 2016 | ND | 3 | 0 | ND |
| 2017 | ND | 3 | 0 | ND |
| 2018 | N/A | 0 | 0 | N/A |
| 2019 | ND | 3 | 0 | ND |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2016-01-20 | AD18840 | ND |
| 2016-01-20 | AD18839 | ND |
| 2016-04-06 | AD31994 | ND |
| 2017-01-30 | AD67454 | ND |
| 2017-01-30 | AD67453 | ND |
| 2017-04-20 | AD80298 | ND |
| 2019-02-05 | AE52833 | ND |
| 2019-02-05 | AE52832 | ND |
| 2019-02-05 | AE52831 | ND |