Dinoseb
North Castle Water District #4
Dinoseb is a herbicide that causes birth defects and reproductive difficulties. It has been banned in the U.S. since 1986.
8
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 | 4 | 0 | ND |
| 2021 | N/A | 0 | 0 | N/A |
| 2022 | N/A | 0 | 0 | N/A |
| 2023 | ND | 4 | 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 |
|---|---|---|
| 2020-09-04 | AW17234-SOCS | ND |
| 2020-09-04 | AW17235-SOCS | ND |
| 2020-09-04 | AW17230-SOCS | ND |
| 2020-09-04 | AW17233-SOCS | ND |
| 2023-08-01 | AZ14121-SOCS | ND |
| 2023-08-01 | AZ14120-SOCS | ND |
| 2023-09-05 | AZ 16355-SOCS | ND |
| 2023-09-05 | AZ 16358-SOCS | ND |