Permethrin
SNO PUD 1 - Lake Stevens
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.
6
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 | ND | 6 | 0 | ND |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2019-01-22 | 19-02669-5700 | ND |
| 2019-01-22 | 19-02669-5701 | ND |
| 2019-04-11 | 19-12542-25460 | ND |
| 2019-07-23 | 19-27105-52792 | ND |
| 2019-07-23 | 19-27105-52793 | ND |
| 2019-11-18 | 19-44092-85165 | ND |