Silver
Auburn Valley Community Service Dis
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 | 3 | 0 | ND |
| 2016 | 47.7 ppb | 3 | 2 | ND - 76.3 ppb |
| 2017 | N/A | 0 | 0 | N/A |
| 2018 | N/A | 0 | 0 | N/A |
| 2019 | ND | 3 | 0 | ND |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2015-12-09 | 2113-002-1100 | ND |
| 2015-12-09 | 2113-006-1144 | ND |
| 2015-12-09 | 2113-008-1155 | ND |
| 2016-06-21 | 2113-002-1000 | 66.9 ppb |
| 2016-06-21 | 2113-006-0955 | 76.3 ppb |
| 2016-06-21 | 2113-008-0930 | ND |
| 2019-12-10 | 7473-002-1200 | ND |
| 2019-12-10 | 7473-008-1230 | ND |
| 2019-12-26 | 7473-006-1315 | ND |