Dinoseb
Watertown Town Water District 3 & 4
NOTE: Watertown Town Water District 3 & 4 purchases water from Watertown City which is required to test for dinoseb. Sample information shown below was taken by Watertown City.
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 | 1 | 0 | ND |
| 2019 | N/A | 0 | 0 | N/A |
| 2020 | ND | 1 | 0 | ND |
| 2021 | ND | 1 | 0 | ND |
| 2022 | N/A | 0 | 0 | N/A |
| 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: Watertown Town Water District 3 & 4 purchases water from Watertown City which is required to test for dinoseb. Sample information shown below was taken by Watertown City.
| Date | Lab ID | Result |
|---|---|---|
| 2018-06-06 | 1808769-001 | ND |
| 2020-05-07 | 2006474-001 | ND |
| 2021-06-17 | 2109436-001 | ND |
| 2023-05-11 | 2306654-001 | ND |