Dalapon
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 dalapon. Sample information shown below was taken by Metropolitan Water District of So. Cal..
The herbicide dalapon has not been used in the U.S. since 1999. In animal studies, exposure to dalapon harms the kidneys.
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 | 10 | 0 | ND |
| 2019 | N/A | 0 | 0 | N/A |
| 2020 | ND | 2 | 0 | ND |
| 2021 | ND | 16 | 0 | ND |
| 2022 | ND | 7 | 0 | ND |
| 2023 | ND | 3 | 0 | ND |
ppb = parts per billion
State, National, and Health Guidelines for Drinking Water
EPA Maximum Contaminant
Level (MCL): 200 ppb
The legal limit for dalapon, established in 1992, was based on a toxicity study in laboratory animals published in 1960.
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 dalapon. Sample information shown below was taken by Metropolitan Water District of So. Cal..
| Date | Lab ID | Result |
|---|---|---|
| 2018-04-02 | CA1910087_005_005-201804021229 | ND |
| 2018-04-02 | CA1910087_020_020-201804021124 | ND |
| 2018-04-02 | CA1910087_003_003-201804021344 | ND |
| 2018-04-03 | CA1910087_026_026-201804031528 | ND |
| 2018-04-09 | CA1910087_013_013-201804090805 | ND |
| 2018-10-01 | CA1910087_003_003-201810011140 | ND |
| 2018-10-01 | CA1910087_020_020-201810011015 | ND |
| 2018-10-02 | CA1910087_005_005-201810021115 | ND |
| 2018-10-02 | CA1910087_026_026-201810020950 | ND |
| 2018-10-02 | CA1910087_013_013-201810021010 | ND |
| 2021-04-05 | CA1910087_026_026-202104050904 | ND |
| 2021-04-05 | CA1910087_005_005-202104050720 | ND |
| 2021-04-05 | CA1910087_013_013-202104050715 | ND |
| 2021-04-05 | CA1910087_003_003-202104050701 | ND |
| 2021-04-05 | CA1910087_020_020-202104051100 | ND |
| 2021-08-03 | CA1910087_005_005-202108030907 | ND |
| 2021-08-03 | CA1910087_026_026-202108030845 | ND |
| 2021-08-03 | CA1910087_003_003-202108030650 | ND |
| 2021-08-03 | CA1910087_013_013-202108031015 | ND |
| 2021-08-03 | CA1910087_020_020-202108031015 | ND |