Silver
City of Orange
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 | 2 | 0 | ND |
2015 | N/A | 0 | 0 | N/A |
2016 | N/A | 0 | 0 | N/A |
2017 | ND | 2 | 0 | ND |
2018 | N/A | 0 | 0 | N/A |
2019 | ND | 1 | 0 | ND |
ppb = parts per billion
All test results
Date | Lab ID | Result |
---|---|---|
2014-04-09 | AC49906 | ND |
2014-04-09 | AC49905 | ND |
2017-02-22 | AD71671 | ND |
2017-02-22 | AD71670 | ND |
2019-10-30 | AE87918 | ND |