Silver
City Of Nevada City
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.
3
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 | N/A | 0 | 0 | N/A |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | ND | 1 | 0 | ND |
| 2018 | 2.96 ppb | 1 | 1 | 2.96 ppb |
| 2019 | 31.0 ppb | 1 | 1 | 31.0 ppb |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2017-11-27 | 7473-002-1430 | ND |
| 2018-10-09 | 7473-002-0815 | 2.96 ppb |
| 2019-11-04 | 7473-002-0930 | 31.0 ppb |