Endothall
Warrington Twp Water&sew Dept
NOTE: Warrington Twp Water&sew Dept purchases water from North Wales Water Authority which is required to test for endothall. Sample information shown below was taken by North Wales Water 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 | 2 | 0 | ND |
| 2021 | ND | 4 | 0 | ND |
| 2022 | N/A | 0 | 0 | N/A |
| 2023 | ND | 7 | 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
NOTE: Warrington Twp Water&sew Dept purchases water from North Wales Water Authority which is required to test for endothall. Sample information shown below was taken by North Wales Water Authority.
| Date | Lab ID | Result |
|---|---|---|
| 2020-04-01 | 22025479.00 | ND |
| 2020-04-20 | 22026084.00 | ND |
| 2020-04-20 | 22026174.00 | ND |
| 2020-04-20 | 22026114.00 | ND |
| 2020-04-20 | 22026144.00 | ND |
| 2020-04-27 | 22217329.00 | ND |
| 2020-04-27 | 22217299.00 | ND |
| 2020-04-27 | 22217359.00 | ND |
| 2020-04-27 | 22217414.00 | ND |
| 2020-04-27 | 22217389.00 | ND |
| 2020-07-06 | 22609702.00 | ND |
| 2020-07-27 | 22801143.00 | ND |
| 2020-07-27 | 22801170.00 | ND |
| 2020-07-27 | 22801136.00 | ND |
| 2020-07-27 | 22801203.00 | ND |
| 2020-07-27 | 22801106.00 | ND |
| 2020-08-31 | 23001504.00 | ND |
| 2020-08-31 | 23001476.00 | ND |
| 2020-08-31 | 23001420.00 | ND |
| 2020-08-31 | 23001448.00 | ND |
| 2023-04-03 | 28704933.00 | ND |
| 2023-04-03 | 28704936.00 | ND |
| 2023-04-03 | 28704937.00 | ND |
| 2023-04-03 | 28704935.00 | ND |
| 2023-04-03 | 28704934.00 | ND |
| 2023-04-04 | 28704938.00 | ND |
| 2023-06-05 | 29110380.00 | ND |
| 2023-07-10 | 29304300.00 | ND |
| 2023-07-10 | 29304299.00 | ND |
| 2023-07-10 | 29304297.00 | ND |
| 2023-07-10 | 29304296.00 | ND |
| 2023-07-11 | 29304301.00 | ND |
| 2023-07-11 | 29304298.00 | ND |
| 2023-07-11 | 29304302.00 | ND |