Silver
Auburn Water District
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.
8
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 | ND | 3 | 0 | ND |
| 2015 | ND | 1 | 0 | ND |
| 2016 | ND | 1 | 0 | ND |
| 2017 | ND | 1 | 0 | ND |
| 2018 | ND | 1 | 0 | ND |
| 2019 | ND | 1 | 0 | ND |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-03-11 | ND | |
| 2014-04-16 | ND | |
| 2014-04-16 | ND | |
| 2015-03-11 | 1503-00565-001 | ND |
| 2016-03-14 | 1603-01110-001-I | ND |
| 2017-04-13 | 1704-01240-001 | ND |
| 2018-03-19 | 1803-01338-001 | ND |
| 2019-04-11 | 1904-01421-001 | ND |