Endothall
Gettysburg Municipal Authority
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 | N/A | 0 | 0 | N/A |
| 2020 | ND | 15 | 0 | ND |
| 2021 | N/A | 0 | 0 | N/A |
| 2022 | N/A | 0 | 0 | N/A |
| 2023 | ND | 14 | 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 |
|---|---|---|
| 2020-05-12 | 22350010.00 | ND |
| 2020-05-12 | 22349981.00 | ND |
| 2020-05-12 | 22349923.00 | ND |
| 2020-05-18 | 22350042.00 | ND |
| 2020-05-18 | 22349955.00 | ND |
| 2020-05-20 | 22349868.00 | ND |
| 2020-05-20 | 22349897.00 | ND |
| 2020-08-18 | 22937363.00 | ND |
| 2020-08-18 | 22937305.00 | ND |
| 2020-08-19 | 22937334.00 | ND |
| 2020-08-19 | 22937392.00 | ND |
| 2020-08-24 | 23125294.00 | ND |
| 2020-08-24 | 23125265.00 | ND |
| 2020-08-24 | 23125323.00 | ND |
| 2020-12-02 | 23656068.00 | ND |
| 2023-05-17 | 29040716.00 | ND |
| 2023-05-17 | 29040715.00 | ND |
| 2023-05-17 | 29040717.00 | ND |
| 2023-05-30 | 29040719.00 | ND |
| 2023-06-20 | 29242422.00 | ND |
| 2023-06-20 | 29242423.00 | ND |
| 2023-06-20 | 29242424.00 | ND |
| 2023-08-01 | 29638974.00 | ND |
| 2023-08-01 | 29436222.00 | ND |
| 2023-08-15 | 29639247.00 | ND |
| 2023-08-16 | 29639248.00 | ND |
| 2023-08-16 | 29639246.00 | ND |
| 2023-08-22 | 29639249.00 | ND |
| 2023-08-22 | 29639250.00 | ND |