Dinoseb
Silverton Municipal Water System
NOTE: Silverton Municipal Water System purchases water from Mackenzie Municipal Water Authority which is required to test for dinoseb. Sample information shown below was taken by Mackenzie Municipal Water Authority.
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 | N/A | 0 | 0 | N/A |
| 2016 | ND | 1 | 0 | ND |
| 2017 | N/A | 0 | 0 | N/A |
| 2018 | N/A | 0 | 0 | N/A |
| 2019 | ND | 1 | 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: Silverton Municipal Water System purchases water from Mackenzie Municipal Water Authority which is required to test for dinoseb. Sample information shown below was taken by Mackenzie Municipal Water Authority.
| Date | Lab ID | Result |
|---|---|---|
| 2016-02-18 | Q1607208005 | ND |
| 2019-05-02 | Q1918085006 | ND |