Silver
Liberty Utilities - Bellflower - Norwalk
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.
11
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 | ND | 1 | 0 | ND |
| 2017 | ND | 3 | 0 | ND |
| 2018 | ND | 1 | 0 | ND |
| 2019 | ND | 2 | 0 | ND |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-04-17 | 9588-026-1325 | ND |
| 2014-04-17 | 9588-031-1300 | ND |
| 2015-04-16 | 9588-025-0945 | ND |
| 2015-05-07 | 9588-016-1235 | ND |
| 2016-12-08 | 9588-016-1130 | ND |
| 2017-04-28 | 9588-026-1145 | ND |
| 2017-05-08 | 9588-031-1130 | ND |
| 2017-11-03 | 9588-016-1045 | ND |
| 2018-04-05 | 9588-025-0830 | ND |
| 2019-04-10 | 9588-026-0000 | ND |
| 2019-06-11 | 9588-016-0900 | ND |