Permethrin
Western Virginia Water Authority
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.
29
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 | ND | 14 | 0 | ND |
| 2019 | ND | 15 | 0 | ND |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2018-07-10 | 3985048 | ND |
| 2018-07-10 | 3984971 | ND |
| 2018-07-10 | 3984394 | ND |
| 2018-07-17 | 3992350 | ND |
| 2018-07-17 | 3992328 | ND |
| 2018-07-17 | 3992324 | ND |
| 2018-07-18 | 3993521 | ND |
| 2018-07-18 | 3994292 | ND |
| 2018-07-18 | 3993374 | ND |
| 2018-07-18 | 3994288 | ND |
| 2018-07-24 | 3999518 | ND |
| 2018-10-09 | 4083915 | ND |
| 2018-10-09 | 4083919 | ND |
| 2018-10-09 | 4085712 | ND |
| 2019-01-14 | 4172957 | ND |
| 2019-01-14 | 4173239 | ND |
| 2019-01-14 | 4172965 | ND |
| 2019-01-15 | 4174635 | ND |
| 2019-01-15 | 4174213 | ND |
| 2019-01-15 | 4174217 | ND |
| 2019-01-15 | 4174756 | ND |
| 2019-01-15 | 4174768 | ND |
| 2019-01-16 | 4176203 | ND |
| 2019-01-16 | 4176292 | ND |
| 2019-01-22 | 4180307 | ND |
| 2019-04-03 | 4247973 | ND |
| 2019-04-03 | 4249103 | ND |
| 2019-04-03 | 4247914 | ND |
| 2019-04-03 | 4247700 | ND |