Permethrin
East Rio Hondo WSC
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 | 3 | 0 | ND |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2019-12-17 | 35519708001SEA1 | ND |
| 2019-12-17 | 35519708002SEA1 | ND |
| 2019-12-17 | 35519708003SEA1 | ND |
| 2020-03-17 | 35538203001SEA2 | ND |
| 2020-03-17 | 35538203002SEA2 | ND |
| 2020-06-18 | 35557684001SEA3 | ND |
| 2020-06-18 | 35557684003SEA2 | ND |
| 2020-06-18 | 35557684002SEA3 | ND |
| 2020-09-24 | 35580316001SEA4 | ND |
| 2020-12-16 | 35599655001SEA4 | ND |