Silver
California Water Service (CWS) - King City
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.
13
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 | 1 | 0 | ND |
| 2015 | ND | 3 | 0 | ND |
| 2016 | ND | 2 | 0 | ND |
| 2017 | ND | 2 | 0 | ND |
| 2018 | ND | 3 | 0 | ND |
| 2019 | ND | 2 | 0 | ND |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-06-04 | 9590-015-0930 | ND |
| 2015-02-18 | 9590-014-1235 | ND |
| 2015-06-09 | 9590-008-1110 | ND |
| 2015-09-10 | 9590-007-1233 | ND |
| 2016-03-07 | 9590-012-1150 | ND |
| 2016-03-08 | 9590-006-1008 | ND |
| 2017-06-08 | 9590-015-1216 | ND |
| 2017-11-20 | 9590-015-1130 | ND |
| 2018-02-08 | 9590-014-1125 | ND |
| 2018-07-17 | 9590-008-1113 | ND |
| 2018-09-17 | 9590-007-1300 | ND |
| 2019-03-20 | 9590-012-1145 | ND |
| 2019-04-17 | 9590-006-1201 | ND |