Dinoseb
Gonzales County Water Supply Corporation
NOTE: Gonzales County Water Supply Corporation purchases water from City of Gonzales which is required to test for dinoseb. Sample information shown below was taken by City of Gonzales.
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 | N/A | 0 | 0 | N/A |
| 2019 | ND | 1 | 0 | ND |
| 2020 | ND | 9 | 0 | ND |
| 2021 | N/A | 0 | 0 | N/A |
| 2022 | ND | 1 | 0 | ND |
| 2023 | ND | 6 | 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: Gonzales County Water Supply Corporation purchases water from City of Gonzales which is required to test for dinoseb. Sample information shown below was taken by City of Gonzales.
| Date | Lab ID | Result |
|---|---|---|
| 2019-03-05 | AE57202 | ND |
| 2020-01-21 | AE94447 | ND |
| 2022-03-11 | AF88962 | ND |
| 2023-02-27 | AG30668 | ND |