Dinoseb
Westwego Waterworks
NOTE: Westwego Waterworks purchases water from West Jefferson Waterworks District 2 which is required to test for dinoseb. Sample information shown below was taken by West Jefferson Waterworks District 2.
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 | ND | 2 | 0 | ND |
| 2015 | ND | 4 | 0 | ND |
| 2016 | ND | 4 | 0 | ND |
| 2017 | ND | 2 | 0 | ND |
| 2018 | ND | 4 | 0 | ND |
| 2019 | ND | 4 | 0 | ND |
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: Westwego Waterworks purchases water from West Jefferson Waterworks District 2 which is required to test for dinoseb. Sample information shown below was taken by West Jefferson Waterworks District 2.
| Date | Lab ID | Result |
|---|---|---|
| 2014-02-04 | AD88742 | ND |
| 2014-02-04 | AD88742 | ND |
| 2015-03-16 | 35179807004 | ND |
| 2015-03-16 | 35179807004 | ND |
| 2015-10-14 | 35212328003 | ND |
| 2015-10-14 | 35212328003 | ND |
| 2016-01-27 | 35226999004 | ND |
| 2016-01-27 | 35226999004 | ND |
| 2016-12-13 | 35283615001 | ND |
| 2016-12-13 | 35283615001 | ND |
| 2017-02-22 | 35296827004 | ND |
| 2017-02-22 | 35296827004 | ND |
| 2018-01-30 | 35371297004 | ND |
| 2018-01-30 | 35371297004 | ND |
| 2018-10-02 | 35421760001 | ND |
| 2018-10-02 | 35421760001 | ND |
| 2019-02-05 | 35446731001 | ND |
| 2019-02-05 | 35446731001 | ND |
| 2019-08-14 | 35490415001 | ND |
| 2019-08-14 | 35490415001 | ND |