Endothall
Elgin Public Water Supply
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 | 8 | 0 | ND |
| 2020 | ND | 6 | 0 | ND |
| 2021 | ND | 3 | 0 | ND |
| 2022 | ND | 8 | 0 | ND |
| 2023 | ND | 6 | 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 |
|---|---|---|
| 2019-12-10 | SDWA-1438615-00 | ND |
| 2019-12-10 | SDWA-1438615-14 | ND |
| 2019-12-10 | SDWA-1438616-00 | ND |
| 2019-12-10 | SDWA-1438616-14 | ND |
| 2019-12-11 | SDWA-1438617-14 | ND |
| 2019-12-11 | SDWA-1438618-00 | ND |
| 2019-12-11 | SDWA-1438618-14 | ND |
| 2019-12-11 | SDWA-1438617-00 | ND |
| 2020-09-08 | SDWA-1515792-00 | ND |
| 2020-09-08 | SDWA-1515793-00 | ND |
| 2020-09-08 | SDWA-1515794-00 | ND |
| 2020-09-08 | SDWA-1515795-00 | ND |
| 2020-10-29 | SDWA-1531266-00 | ND |
| 2020-10-29 | SDWA-1531267-00 | ND |
| 2021-10-12 | SDWA-1604992-00 | ND |
| 2021-10-12 | SDWA-1604993-00 | ND |
| 2021-10-12 | SDWA-1604991-00 | ND |
| 2022-02-16 | SDWA-1669867-00 | ND |
| 2022-02-16 | SDWA-1669886-00 | ND |
| 2022-02-16 | SDWA-1669902-00 | ND |
| 2022-05-11 | SDWA-1689093-00 | ND |
| 2022-05-11 | SDWA-1689112-00 | ND |
| 2022-05-11 | SDWA-1689144-00 | ND |
| 2022-07-26 | SDWA-1715712-00 | ND |
| 2022-12-06 | SDWA-1747275-00 | ND |
| 2023-03-01 | SDWA-1776444-00 | ND |
| 2023-03-01 | SDWA-1776445-00 | ND |
| 2023-03-01 | SDWA-1776446-00 | ND |
| 2023-12-27 | SDWA-1854487-00 | ND |
| 2023-12-27 | SDWA-1854542-00 | ND |
| 2023-12-27 | SDWA-1854558-00 | ND |