Endothall
Tri-water System
Endothall is a herbicide used to kill aquatic plants and algae. It's also used on potato and cotton crops.
12
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 |
|---|---|---|---|---|
| 2018 | ND | 8 | 0 | ND |
| 2019 | N/A | 0 | 0 | N/A |
| 2020 | N/A | 0 | 0 | N/A |
| 2021 | ND | 4 | 0 | ND |
| 2022 | N/A | 0 | 0 | N/A |
| 2023 | N/A | 0 | 0 | N/A |
ppb = parts per billion
State, National, and Health Guidelines for Drinking Water
EWG Health Guideline: 94 ppb
The EWG Health Guideline of 94 ppb for endothall was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against harm to the stomach and intestines.
EPA Maximum Contaminant
Level (MCL): 100 ppb
The legal limit for endothall, established in 1992, was based on a toxicity study in laboratory animals conducted in the 1960s.
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2018-05-02 | 35390243001 | ND |
| 2018-05-02 | 35390243002 | ND |
| 2018-05-02 | 35390243003 | ND |
| 2018-05-02 | 35390243004 | ND |
| 2018-05-02 | 35390243001 | ND |
| 2018-05-02 | 35390243002 | ND |
| 2018-05-02 | 35390243003 | ND |
| 2018-05-02 | 35390243004 | ND |
| 2021-06-15 | 35641330001 | ND |
| 2021-06-15 | 35641330002 | ND |
| 2021-06-15 | 35641330003 | ND |
| 2021-06-15 | 35641330004 | ND |