Permethrin
Redmond Water Department
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.
14
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 |
|---|---|---|---|---|
| 2018 | ND | 7 | 0 | ND |
| 2019 | ND | 7 | 0 | ND |
| 2020 | N/A | 0 | 0 | N/A |
| 2021 | N/A | 0 | 0 | N/A |
| 2022 | N/A | 0 | 0 | N/A |
| 2023 | N/A | 0 | 0 | N/A |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2018-08-16 | 18-30803-62445 | ND |
| 2018-08-16 | 18-30803-62447 | ND |
| 2018-08-16 | 18-30803-62449 | ND |
| 2018-08-16 | 18-30803-62451 | ND |
| 2018-08-16 | 18-30803-62453 | ND |
| 2018-08-16 | 18-30803-62455 | ND |
| 2018-08-16 | 18-30803-62457 | ND |
| 2019-02-21 | 19-06142-12634 | ND |
| 2019-02-21 | 19-06142-12635 | ND |
| 2019-02-21 | 19-06142-12636 | ND |
| 2019-02-21 | 19-06142-12637 | ND |
| 2019-05-14 | 19-17728-35239 | ND |
| 2019-05-14 | 19-17728-35240 | ND |
| 2019-10-22 | 19-40682-78930 | ND |