Dinoseb
North Wales Water Authority
Dinoseb is a herbicide that causes birth defects and reproductive difficulties. It has been banned in the U.S. since 1986.
35
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 | 20 | 0 | ND |
| 2021 | N/A | 0 | 0 | N/A |
| 2022 | ND | 1 | 0 | ND |
| 2023 | ND | 14 | 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 | 22025486.00 | ND |
| 2020-04-20 | 22026151.00 | ND |
| 2020-04-20 | 22026181.00 | ND |
| 2020-04-20 | 22026121.00 | ND |
| 2020-04-20 | 22026091.00 | ND |
| 2020-04-27 | 22217312.00 | ND |
| 2020-04-27 | 22217372.00 | ND |
| 2020-04-27 | 22217416.00 | ND |
| 2020-04-27 | 22217282.00 | ND |
| 2020-04-27 | 22217342.00 | ND |
| 2020-07-06 | 22609709.00 | ND |
| 2020-07-27 | 22801119.00 | ND |
| 2020-07-27 | 22801150.00 | ND |
| 2020-07-27 | 22801174.00 | ND |
| 2020-07-27 | 22801089.00 | ND |
| 2020-07-27 | 22801210.00 | ND |
| 2020-08-31 | 23001483.00 | ND |
| 2020-08-31 | 23001455.00 | ND |
| 2020-08-31 | 23001427.00 | ND |
| 2020-08-31 | 23001511.00 | ND |
| 2022-07-05 | 27039495.00 | ND |
| 2023-04-03 | 28704977.00 | ND |
| 2023-04-03 | 28704973.00 | ND |
| 2023-04-03 | 28704976.00 | ND |
| 2023-04-03 | 28704975.00 | ND |
| 2023-04-03 | 28704974.00 | ND |
| 2023-04-04 | 28704972.00 | ND |
| 2023-06-27 | 29110716.00 | ND |
| 2023-07-10 | 29304349.00 | ND |
| 2023-07-10 | 29304348.00 | ND |
| 2023-07-10 | 29304346.00 | ND |
| 2023-07-10 | 29304345.00 | ND |
| 2023-07-11 | 29304350.00 | ND |
| 2023-07-11 | 29304347.00 | ND |
| 2023-07-11 | 29304351.00 | ND |