Dinoseb
East Columbia Water System
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 |
|---|---|---|---|---|
| 2014 | N/A | 0 | 0 | N/A |
| 2015 | ND | 4 | 0 | ND |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | N/A | 0 | 0 | N/A |
| 2018 | ND | 4 | 0 | ND |
| 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
| Date | Lab ID | Result |
|---|---|---|
| 2015-09-15 | 35207972004 | ND |
| 2015-09-15 | 35207972004 | ND |
| 2015-12-08 | 35220135005 | ND |
| 2015-12-08 | 35220135005 | ND |
| 2018-06-25 | 35400832001 | ND |
| 2018-06-25 | 35400832001 | ND |
| 2018-06-26 | 35400831001 | ND |
| 2018-06-26 | 35400831001 | ND |