Permethrin
City of Alexandria 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.
15
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 | ND | 8 | 0 | ND |
| 2020 | ND | 7 | 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 |
|---|---|---|
| 2019-09-19 | 4428892 | ND |
| 2019-09-19 | 4428934 | ND |
| 2019-09-24 | 4437098 | ND |
| 2019-09-24 | 4437145 | ND |
| 2019-09-25 | 4436964 | ND |
| 2019-09-26 | 4437332 | ND |
| 2019-10-29 | 4471994 | ND |
| 2019-10-29 | 4471984 | ND |
| 2020-03-03 | 4580950 | ND |
| 2020-03-03 | 4581446 | ND |
| 2020-03-09 | 4585674 | ND |
| 2020-03-09 | 4585724 | ND |
| 2020-03-17 | 4592814 | ND |
| 2020-03-25 | 4596257 | ND |
| 2020-03-25 | 4596302 | ND |