Silver
San Andreas Mutual Water Company
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.
12
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 | ND | 3 | 0 | ND |
| 2017 | ND | 3 | 0 | ND |
| 2018 | ND | 3 | 0 | ND |
| 2019 | N/A | 0 | 0 | N/A |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2015-02-03 | 9576-001-1530 | ND |
| 2015-02-03 | 9576-003-1530 | ND |
| 2015-02-03 | 9576-005-1530 | ND |
| 2016-02-09 | 9576-001-1400 | ND |
| 2016-02-09 | 9576-003-1400 | ND |
| 2016-02-09 | 9576-005-1400 | ND |
| 2017-11-06 | 9576-001-1345 | ND |
| 2017-11-06 | 9576-003-1400 | ND |
| 2017-11-06 | 9576-005-1415 | ND |
| 2018-10-01 | 9576-001-1330 | ND |
| 2018-10-01 | 9576-003-1345 | ND |
| 2018-10-01 | 9576-005-1400 | ND |