Permethrin
City of Hewitt
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.
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 | N/A | 0 | 0 | N/A |
2019 | ND | 4 | 0 | ND |
ppb = parts per billion
All test results
Date | Lab ID | Result |
---|---|---|
2019-10-11 | Q1972312001 | ND |
2019-10-11 | Q1972312002 | ND |
2019-10-11 | Q1972312003 | ND |
2019-12-18 | Q1980445001 | ND |
2020-03-19 | Q2011936001 | ND |
2020-03-19 | Q2011936002 | ND |
2020-03-19 | Q2011936003 | ND |
2020-06-25 | Q2025564001 | ND |