Silver
City of Seal Beach
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.
8
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 | 2 | 0 | ND |
| 2015 | ND | 2 | 0 | ND |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | N/A | 0 | 0 | N/A |
| 2018 | ND | 4 | 0 | ND |
| 2019 | N/A | 0 | 0 | N/A |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-01-30 | 4417-002-0900 | ND |
| 2014-02-25 | 4417-003-0740 | ND |
| 2015-01-20 | 4417-009-0805 | ND |
| 2015-02-02 | 4417-002-1030 | ND |
| 2018-01-16 | 4417-002-1030 | ND |
| 2018-01-16 | 4417-009-1100 | ND |
| 2018-02-27 | 4417-001-0930 | ND |
| 2018-05-16 | 4417-001-1100 | ND |