Permethrin
City of Denham Springs Water System
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 | N/A | 0 | 0 | N/A |
| 2019 | N/A | 0 | 0 | N/A |
| 2020 | ND | 14 | 0 | ND |
| 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 |
|---|---|---|
| 2020-02-18 | 4568672 | ND |
| 2020-02-18 | 4567913 | ND |
| 2020-02-18 | 4568192 | ND |
| 2020-02-18 | 4568318 | ND |
| 2020-02-18 | 4567932 | ND |
| 2020-02-18 | 4568345 | ND |
| 2020-02-18 | 4568394 | ND |
| 2020-08-18 | 4703429 | ND |
| 2020-08-18 | 4703433 | ND |
| 2020-08-18 | 4703437 | ND |
| 2020-08-18 | 4703454 | ND |
| 2020-08-18 | 4703458 | ND |
| 2020-08-18 | 4703462 | ND |
| 2020-08-18 | 4703466 | ND |