Dinoseb
City of La Grande
Dinoseb is a herbicide that causes birth defects and reproductive difficulties. It has been banned in the U.S. since 1986.
15
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 | N/A | 0 | 0 | N/A |
| 2019 | N/A | 0 | 0 | N/A |
| 2020 | ND | 10 | 0 | ND |
| 2021 | N/A | 0 | 0 | N/A |
| 2022 | N/A | 0 | 0 | N/A |
| 2023 | ND | 5 | 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
| Date | Lab ID | Result |
|---|---|---|
| 2020-04-01 | 1981651-S | ND |
| 2020-04-01 | 1981621-S | ND |
| 2020-04-01 | 1981641-S | ND |
| 2020-04-01 | 1981631-S | ND |
| 2020-04-01 | 1981611-S | ND |
| 2020-07-08 | 2008351-S | ND |
| 2020-07-08 | 2008381-S | ND |
| 2020-07-08 | 2008371-S | ND |
| 2020-07-08 | 2008361-S | ND |
| 2020-07-08 | 2008391-S | ND |
| 2023-04-19 | 2302071-S | ND |
| 2023-04-19 | 2302041-S | ND |
| 2023-04-19 | 2302061-S | ND |
| 2023-04-19 | 2302051-S | ND |
| 2023-04-19 | 2302081-S | ND |