Permethrin
Cal-am Water Company - Duarte
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.
18
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 | ND | 8 | 0 | ND |
| 2019 | ND | 10 | 0 | ND |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2018-10-10 | 41666001 | ND |
| 2018-10-10 | 41665901 | ND |
| 2018-10-10 | 41665801 | ND |
| 2018-10-10 | 41813901 | ND |
| 2018-10-10 | 41665701 | ND |
| 2018-10-10 | 41813801 | ND |
| 2018-10-10 | 41665501 | ND |
| 2018-10-10 | 41665401 | ND |
| 2019-03-19 | 43522201 | ND |
| 2019-04-03 | 43792001 | ND |
| 2019-04-03 | 43793901 | ND |
| 2019-04-03 | 43792501 | ND |
| 2019-04-03 | 43792401 | ND |
| 2019-04-03 | 43792301 | ND |
| 2019-04-08 | 43792201 | ND |
| 2019-04-08 | 43792101 | ND |
| 2019-04-25 | 43793801 | ND |
| 2019-09-11 | 46366201 | ND |