Permethrin
Otay Water District
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.
8
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 | 2 | 0 | ND |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2019-10-15 | B9J2424-01 | ND |
| 2019-10-15 | B9J2424-02 | ND |
| 2020-01-13 | C0A1617-01 | ND |
| 2020-01-13 | C0A1617-02 | ND |
| 2020-04-14 | C0D2001-01 | ND |
| 2020-04-14 | C0D2001-02 | ND |
| 2020-07-15 | 0G17033-02 | ND |
| 2020-07-15 | 0G17033-01 | ND |