Silver
City of Fountain Valley
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.
27
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 | N/A | 0 | 0 | N/A |
| 2015 | ND | 4 | 0 | ND |
| 2016 | ND | 2 | 0 | ND |
| 2017 | ND | 6 | 0 | ND |
| 2018 | ND | 13 | 0 | ND |
| 2019 | ND | 2 | 0 | ND |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2015-01-12 | 4417-009-0840 | ND |
| 2015-01-14 | 4417-010-0835 | ND |
| 2015-04-15 | 4417-020-0830 | ND |
| 2015-04-15 | 4417-011-0750 | ND |
| 2016-01-11 | 4417-006-0830 | ND |
| 2016-01-12 | 4417-008-0740 | ND |
| 2017-01-10 | 4417-008-0820 | ND |
| 2017-04-04 | 4417-008-0810 | ND |
| 2017-07-12 | 4417-008-0710 | ND |
| 2017-08-07 | 4417-006-0820 | ND |
| 2017-10-03 | 4417-006-0820 | ND |
| 2017-10-05 | 4417-008-0800 | ND |
| 2018-01-08 | 4417-006-0800 | ND |
| 2018-01-10 | 4417-008-0720 | ND |
| 2018-01-11 | 4417-010-0715 | ND |
| 2018-04-09 | 4417-008-0830 | ND |
| 2018-04-09 | 4417-006-0750 | ND |
| 2018-04-11 | 4417-020-0740 | ND |
| 2018-06-20 | 4417-011-0845 | ND |
| 2018-07-10 | 4417-008-1445 | ND |
| 2018-07-10 | 4417-006-0800 | ND |
| 2018-09-18 | 4417-009-0805 | ND |
| 2018-09-27 | 4417-006-0810 | ND |
| 2018-11-07 | 4417-008-0845 | ND |
| 2018-11-27 | 4417-006-0820 | ND |
| 2019-01-22 | 4417-008-0740 | ND |
| 2019-07-08 | 4417-009-0825 | ND |