Endothall
Cullman Utilities Board
Endothall is a herbicide used to kill aquatic plants and algae. It's also used on potato and cotton crops.
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 | N/A | 0 | 0 | N/A |
| 2019 | ND | 2 | 0 | ND |
| 2020 | ND | 2 | 0 | ND |
| 2021 | ND | 4 | 0 | ND |
| 2022 | ND | 7 | 0 | ND |
| 2023 | ND | 4 | 0 | ND |
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 |
|---|---|---|
| 2019-06-25 | L1112381-05 | ND |
| 2019-09-09 | L1137160-06 | ND |
| 2020-09-14 | 20171269001_ISOC | ND |
| 2020-10-21 | 20176646001_ISOC | ND |
| 2021-03-12 | 35618627001_ISOC | ND |
| 2021-05-24 | 35635607001_ISOC | ND |
| 2021-08-09 | 35654106001_ISOC | ND |
| 2021-11-15 | 35678186001_ISOC | ND |
| 2022-01-19 | 35691430001_ISOC | ND |
| 2022-03-16 | 35704232001_ISOC | ND |
| 2022-04-20 | 35712316001_ISOC | ND |
| 2022-09-21 | 35748352001_ISOC | ND |
| 2022-10-19 | 35754173001_ISOC | ND |
| 2022-10-19 | 35754173003_ISOC | ND |
| 2022-11-21 | DC09899-01 | ND |
| 2023-01-19 | 35773717001_ISOC | ND |
| 2023-04-25 | 35794896001_ISOC | ND |
| 2023-07-27 | 35815989001_ISOC | ND |
| 2023-10-17 | 35835047001_ISOC | ND |