Permethrin
City of Hollister
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.
13
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 | 13 | 0 | ND |
| 2019 | N/A | 0 | 0 | N/A |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2018-05-10 | 1805890-001B | ND |
| 2018-07-31 | 1808044-001A | ND |
| 2018-07-31 | 1808044-002A | ND |
| 2018-07-31 | 1808044-003A | ND |
| 2018-07-31 | 1808044-004A | ND |
| 2018-07-31 | 1808044-005A | ND |
| 2018-08-09 | 1808499-001B | ND |
| 2018-08-09 | 1808498-001B | ND |
| 2018-08-09 | 1808498-002B | ND |
| 2018-08-09 | 1808498-003B | ND |
| 2018-08-09 | 1808498-004B | ND |
| 2018-08-09 | 1808498-005B | ND |
| 2018-11-20 | 1811958-001B | ND |