Silver
California Water Service - Livermore
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.
15
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 | 4 | 0 | ND |
| 2015 | ND | 3 | 0 | ND |
| 2016 | ND | 1 | 0 | ND |
| 2017 | ND | 4 | 0 | ND |
| 2018 | ND | 1 | 0 | ND |
| 2019 | ND | 2 | 0 | ND |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-07-07 | 5810-006-1332 | ND |
| 2014-07-07 | 5810-021-1315 | ND |
| 2014-08-14 | 5810-007-0915 | ND |
| 2014-12-17 | 5810-008-1151 | ND |
| 2015-01-28 | 5810-010-1121 | ND |
| 2015-04-27 | 5810-009-0912 | ND |
| 2015-07-21 | 5810-011-0945 | ND |
| 2016-05-04 | 5810-015-1308 | ND |
| 2017-01-24 | 5810-008-1344 | ND |
| 2017-04-05 | 5810-014-1031 | ND |
| 2017-07-26 | 5810-021-1240 | ND |
| 2017-08-30 | 5810-007-1200 | ND |
| 2018-03-14 | 5810-010-1501 | ND |
| 2019-04-04 | 5810-013-1307 | ND |
| 2019-10-30 | 5810-015-1200 | ND |