Endothall
East Cocalico Township
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 | 22 | 0 | ND |
| 2021 | N/A | 0 | 0 | N/A |
| 2022 | N/A | 0 | 0 | N/A |
| 2023 | ND | 20 | 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 |
|---|---|---|
| 2020-05-01 | 22369356.00 | ND |
| 2020-05-01 | 22369496.00 | ND |
| 2020-05-01 | 22369467.00 | ND |
| 2020-05-01 | 22369443.00 | ND |
| 2020-05-01 | 22369414.00 | ND |
| 2020-05-01 | 22369385.00 | ND |
| 2020-05-01 | 22369327.00 | ND |
| 2020-05-01 | 22369298.00 | ND |
| 2020-05-01 | 22369269.00 | ND |
| 2020-05-01 | 22369240.00 | ND |
| 2020-05-01 | 22369211.00 | ND |
| 2020-07-31 | 22956385.00 | ND |
| 2020-07-31 | 22956326.00 | ND |
| 2020-07-31 | 22956182.00 | ND |
| 2020-07-31 | 22956298.00 | ND |
| 2020-07-31 | 22956356.00 | ND |
| 2020-07-31 | 22956269.00 | ND |
| 2020-07-31 | 22956153.00 | ND |
| 2020-07-31 | 22956240.00 | ND |
| 2020-07-31 | 22956124.00 | ND |
| 2020-07-31 | 22956210.00 | ND |
| 2020-07-31 | 22956414.00 | ND |
| 2023-05-30 | 29261569.00 | ND |
| 2023-05-30 | 29261576.00 | ND |
| 2023-05-30 | 29261577.00 | ND |
| 2023-05-30 | 29261575.00 | ND |
| 2023-05-30 | 29261568.00 | ND |
| 2023-05-30 | 29261574.00 | ND |
| 2023-05-30 | 29261573.00 | ND |
| 2023-05-30 | 29261572.00 | ND |
| 2023-05-30 | 29261571.00 | ND |
| 2023-05-30 | 29261570.00 | ND |
| 2023-09-13 | 29847329.00 | ND |
| 2023-09-13 | 29847324.00 | ND |
| 2023-09-13 | 29847328.00 | ND |
| 2023-09-13 | 29847323.00 | ND |
| 2023-09-13 | 29847327.00 | ND |
| 2023-09-13 | 29847326.00 | ND |
| 2023-09-13 | 29847325.00 | ND |
| 2023-09-28 | 29847861.00 | ND |
| 2023-09-28 | 29847862.00 | ND |
| 2023-09-28 | 29847863.00 | ND |