Silver
Newhall Cwd-castaic
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.
18
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 | 3 | 0 | ND |
| 2015 | ND | 3 | 0 | ND |
| 2016 | ND | 3 | 0 | ND |
| 2017 | ND | 3 | 0 | ND |
| 2018 | ND | 3 | 0 | ND |
| 2019 | ND | 3 | 0 | ND |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-04-10 | 9590-008-1350 | ND |
| 2014-04-10 | 9590-002-1405 | ND |
| 2014-04-10 | 9590-001-1435 | ND |
| 2015-04-29 | 9590-001-1100 | ND |
| 2015-04-29 | 9590-002-1040 | ND |
| 2015-04-29 | 9590-008-1030 | ND |
| 2016-04-14 | 9590-001-0930 | ND |
| 2016-04-14 | 9590-008-0900 | ND |
| 2016-04-14 | 9590-002-0850 | ND |
| 2017-04-13 | 9590-002-1525 | ND |
| 2017-04-13 | 9590-008-1535 | ND |
| 2017-11-02 | 9590-001-1040 | ND |
| 2018-04-12 | 9590-002-1056 | ND |
| 2018-04-12 | 9590-008-1120 | ND |
| 2018-04-12 | 9590-001-1145 | ND |
| 2019-04-18 | 9590-002-0920 | ND |
| 2019-04-18 | 9590-008-0910 | ND |
| 2019-04-18 | 9590-001-0850 | ND |