Permethrin
Golden State Water Company (GSWC) - Florence/Graham
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.
7
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 | N/A | 0 | 0 | N/A |
| 2019 | ND | 7 | 0 | ND |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2019-02-07 | 201902070846 | ND |
| 2019-02-07 | 201902070847 | ND |
| 2019-05-15 | 201905150401 | ND |
| 2019-08-05 | 201908050317 | ND |
| 2019-08-06 | 201908060498 | ND |
| 2019-08-07 | 201908070688 | ND |
| 2019-08-13 | 201908130587 | ND |