Dinoseb
Nash Forreston Water Supply Corporation
NOTE: Nash Forreston Water Supply Corporation purchases water from City of Waxahachie which is required to test for dinoseb. Sample information shown below was taken by City of Waxahachie.
Dinoseb is a herbicide that causes birth defects and reproductive difficulties. It has been banned in the U.S. since 1986.
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 | ND | 2 | 0 | ND |
| 2019 | ND | 2 | 0 | ND |
| 2020 | ND | 1 | 0 | ND |
| 2021 | ND | 2 | 0 | ND |
| 2022 | ND | 2 | 0 | ND |
| 2023 | ND | 1 | 0 | ND |
ppb = parts per billion
State, National, and Health Guidelines for Drinking Water
EPA Maximum Contaminant
Level (MCL): 7 ppb
The legal limit for dinoseb, established in 1992, was based on toxicity studies conducted in laboratory animals in the 1970s and 1980s.
ppb = parts per billion
All test results
NOTE: Nash Forreston Water Supply Corporation purchases water from City of Waxahachie which is required to test for dinoseb. Sample information shown below was taken by City of Waxahachie.
| Date | Lab ID | Result |
|---|---|---|
| 2018-01-25 | Q1802982016 | ND |
| 2019-04-29 | Q1916965003 | ND |
| 2019-04-29 | Q1916965013 | ND |
| 2020-08-17 | Q2032738003 | ND |
| 2021-09-16 | Q2125453003 | ND |
| 2022-01-12 | Q2201052013 | ND |
| 2022-01-12 | Q2201052018 | ND |
| 2023-11-20 | Q2349758009 | ND |