Permethrin
Yorba Linda 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.
11
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 | 10 | 0 | ND |
| 2019 | ND | 1 | 0 | ND |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2018-05-08 | 18050200-02-0037 | ND |
| 2018-05-08 | 18050199-02-0037 | ND |
| 2018-06-26 | 201807030710Q | ND |
| 2018-06-26 | 201807030709E | ND |
| 2018-07-25 | 201807250308D | ND |
| 2018-10-24 | 201810240294Q | ND |
| 2018-10-24 | 201810240293D | ND |
| 2018-11-14 | 201811140513 | ND |
| 2018-12-12 | 201812120363Q | ND |
| 2018-12-12 | 201812120362D | ND |
| 2019-05-14 | 19050396-03 | ND |