Dinoseb
Roper Water System
NOTE: Roper Water System purchases water from Washington County Water System which is required to test for dinoseb. Sample information shown below was taken by Washington County Water System.
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 |
|---|---|---|---|---|
| 2014 | N/A | 0 | 0 | N/A |
| 2015 | ND | 2 | 0 | ND |
| 2016 | ND | 1 | 0 | ND |
| 2017 | ND | 2 | 0 | ND |
| 2018 | N/A | 0 | 0 | N/A |
| 2019 | N/A | 0 | 0 | N/A |
ppb = parts per billion
State and national drinking water standards and health guidelines
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: Roper Water System purchases water from Washington County Water System which is required to test for dinoseb. Sample information shown below was taken by Washington County Water System.
| Date | Lab ID | Result |
|---|---|---|
| 2015-05-12 | ND | |
| 2015-08-17 | ND | |
| 2017-08-14 | 8502-081417-021S | ND |
| 2017-10-09 | 8502-100917-021S | ND |