Permethrin
City of Lewiston
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.
10
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 |
|---|---|---|---|---|
| 2013 | N/A | 0 | 0 | N/A |
| 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 | 10 | 0 | ND |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2019-03-13 | 19-08847-18057 | ND |
| 2019-03-13 | 19-08847-18058 | ND |
| 2019-04-23 | 19-14720-29747 | ND |
| 2019-04-23 | 19-14720-29748 | ND |
| 2019-06-05 | 19-21950-42925 | ND |
| 2019-09-20 | 19-36922-71689 | ND |
| 2019-09-20 | 19-36919-71676 | ND |
| 2019-09-20 | 19-36919-71677 | ND |
| 2019-09-20 | 19-36919-71678 | ND |
| 2019-12-03 | 19-46515-90076 | ND |