Permethrin
Grayson Utility Commission
Permethrin is an insecticide used on agricultural crops, but most uses are non-agricultural. It can be applied to residential areas to control mosquitoes and ticks and also used as a bug repellent on clothing, as well as medical applications to treat head lice. Long-term exposure to permethrin may harm the liver.
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 | N/A | 0 | 0 | N/A |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | N/A | 0 | 0 | N/A |
| 2018 | N/A | 0 | 0 | N/A |
| 2019 | N/A | 0 | 0 | N/A |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2020-03-16 | 2003835-002B | ND |
| 2020-03-16 | 2003835-003B | ND |
| 2020-06-08 | 2006403-002B | ND |
| 2020-06-08 | 2006403-003B | ND |
| 2020-09-29 | 2009F41-002B | ND |
| 2020-09-29 | 2009F41-003B | ND |
| 2020-12-14 | 2012866-002B | ND |
| 2020-12-14 | 2012866-003B | ND |