Silver
California Water Service Company - East Los Angeles
NOTE: California Water Service Company - East Los Angeles purchases water from Metropolitan Water District of So. Cal. which is required to test for silver. Sample information shown below was taken by Metropolitan Water District of So. Cal..
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.
Samples
Samples exceeding legal limit (MCL)
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2018 | ND | 5 | 0 | ND |
| 2019 | ND | 3 | 0 | ND |
| 2020 | ND | 3 | 0 | ND |
| 2021 | ND | 5 | 0 | ND |
| 2022 | ND | 3 | 0 | ND |
| 2023 | ND | 4 | 0 | ND |
ppb = parts per billion
All test results
NOTE: California Water Service Company - East Los Angeles purchases water from Metropolitan Water District of So. Cal. which is required to test for silver. Sample information shown below was taken by Metropolitan Water District of So. Cal..
| Date | Lab ID | Result |
|---|---|---|
| 2018-04-09 | CA1910087_003_003-201804091000 | ND |
| 2018-04-09 | CA1910087_026_026-201804090825 | ND |
| 2018-04-09 | CA1910087_005_005-201804090820 | ND |
| 2018-04-09 | CA1910087_020_020-201804091308 | ND |
| 2018-04-09 | CA1910087_013_013-201804090805 | ND |
| 2019-04-08 | CA1910087_013_013-201904080845 | ND |
| 2019-04-08 | CA1910087_003_003-201904080750 | ND |
| 2019-04-08 | CA1910087_005_005-201904080750 | ND |
| 2019-04-08 | CA1910087_020_020-201904081157 | ND |
| 2019-04-08 | CA1910087_026_026-201904081010 | ND |
| 2020-04-13 | CA1910087_013_013-202004130715 | ND |
| 2020-04-13 | CA1910087_020_020-202004131218 | ND |
| 2020-04-13 | CA1910087_026_026-202004130933 | ND |
| 2020-04-13 | CA1910087_003_003-202004131020 | ND |
| 2020-04-13 | CA1910087_005_005-202004130757 | ND |
| 2021-04-12 | CA1910087_020_020-202104121210 | ND |
| 2021-04-12 | CA1910087_003_003-202104120650 | ND |
| 2021-04-12 | CA1910087_013_013-202104120905 | ND |
| 2021-04-12 | CA1910087_005_005-202104120712 | ND |
| 2021-04-12 | CA1910087_026_026-202104121010 | ND |
| 2022-04-11 | CA1910087_013_013-202204110910 | ND |
| 2022-04-11 | CA1910087_005_005-202204110735 | ND |
| 2022-04-11 | CA1910087_020_020-202204111225 | ND |
| 2022-04-11 | CA1910087_026_026-202204110950 | ND |
| 2022-04-11 | CA1910087_003_003-202204110645 | ND |
| 2023-04-10 | CA1910087_026_026-202304100825 | ND |
| 2023-04-10 | CA1910087_020_020-202304101244 | ND |
| 2023-04-13 | CA1910087_005_005-202304130830 | ND |
| 2023-04-13 | CA1910087_003_003-202304130840 | ND |
| 2023-04-13 | CA1910087_013_013-202304130855 | ND |