Silver
Golden State Water Company - Los Osos
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 | ND | 1 | 0 | ND |
| 2015 | ND | 3 | 0 | ND |
| 2016 | ND | 1 | 0 | ND |
| 2017 | N/A | 0 | 0 | N/A |
| 2018 | ND | 3 | 0 | ND |
| 2019 | ND | 1 | 0 | ND |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-07-02 | 2706-008-0850 | ND |
| 2015-01-14 | 2706-001-0815 | ND |
| 2015-01-14 | 2706-010-0720 | ND |
| 2015-06-17 | 2706-003-0845 | ND |
| 2016-05-11 | 2706-019-0718 | ND |
| 2018-01-30 | 9590-001-0900 | ND |
| 2018-01-30 | 9590-010-0800 | ND |
| 2018-02-13 | 9590-003-0925 | ND |
| 2019-05-06 | 9590-019-0815 | ND |