Dinoseb
Zachary Water System
Dinoseb is a herbicide that causes birth defects and reproductive difficulties. It has been banned in the U.S. since 1986.
23
Samples
0
Samples exceeding legal limit (MCL)
0
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 | 16 | 0 | ND |
| 2020 | N/A | 0 | 0 | N/A |
| 2021 | ND | 1 | 0 | ND |
| 2022 | ND | 4 | 0 | ND |
| 2023 | N/A | 0 | 0 | N/A |
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
| Date | Lab ID | Result |
|---|---|---|
| 2018-11-26 | 35433146001 | ND |
| 2018-11-26 | 35433146001 | ND |
| 2019-06-18 | 35476846004 | ND |
| 2019-06-18 | 35476846003 | ND |
| 2019-06-18 | 35476846001 | ND |
| 2019-06-18 | 35476846002 | ND |
| 2019-06-18 | 35476846003 | ND |
| 2019-06-18 | 35476846004 | ND |
| 2019-06-18 | 35476846002 | ND |
| 2019-06-18 | 35476846001 | ND |
| 2019-08-12 | 35489898002 | ND |
| 2019-08-12 | 35489898004 | ND |
| 2019-08-12 | 35489898003 | ND |
| 2019-08-12 | 35489898002 | ND |
| 2019-08-12 | 35489898001 | ND |
| 2019-08-12 | 35489898004 | ND |
| 2019-08-12 | 35489898003 | ND |
| 2019-08-12 | 35489898001 | ND |
| 2021-10-20 | 35672362001 | ND |
| 2022-06-06 | 35724255001 | ND |
| 2022-06-06 | 35724255002 | ND |
| 2022-06-06 | 35724255003 | ND |
| 2022-06-06 | 35724255004 | ND |