Silver
California Water Service Company - Hermosa / Redondo 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.
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2014 | ND | 1 | 0 | ND |
2015 | ND | 1 | 0 | ND |
2016 | N/A | 0 | 0 | N/A |
2017 | N/A | 0 | 0 | N/A |
2018 | ND | 3 | 0 | ND |
2019 | N/A | 0 | 0 | N/A |
ppb = parts per billion
All test results
Date | Lab ID | Result |
---|---|---|
2014-06-11 | 5810-001-1031 | ND |
2015-06-10 | 5810-005-1015 | ND |
2018-06-13 | 5810-005-1429 | ND |
2018-07-27 | 9590-001-0935 | ND |
2018-12-20 | 9590-005-1245 | ND |