Permethrin
California American Water Company - Parkway
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.
24
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 | 9 | 0 | ND |
| 2019 | ND | 10 | 0 | ND |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2018-10-08 | 41674801 | ND |
| 2018-10-09 | 41675001 | ND |
| 2018-10-09 | 41674601 | ND |
| 2018-10-09 | 41674501 | ND |
| 2018-10-09 | 41674301 | ND |
| 2018-10-10 | 41674101 | ND |
| 2018-10-10 | 41674201 | ND |
| 2018-10-10 | 41674701 | ND |
| 2018-10-11 | 41674401 | ND |
| 2019-04-10 | 43802001 | ND |
| 2019-04-10 | 43802401 | ND |
| 2019-04-10 | 43802301 | ND |
| 2019-04-10 | 43802201 | ND |
| 2019-04-10 | 43802101 | ND |
| 2019-04-10 | 43801901 | ND |
| 2019-04-10 | 43801801 | ND |
| 2019-04-10 | 43801701 | ND |
| 2019-07-11 | 45281501 | ND |
| 2019-10-14 | 46892501 | ND |
| 2020-01-14 | 48134301 | ND |
| 2020-04-07 | 49666701 | ND |
| 2020-05-05 | 50191601 | ND |
| 2020-06-29 | 50493101 | ND |
| 2020-12-10 | 52819301 | ND |