Permethrin
Sioux City Water Supply
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 |
---|---|---|---|---|
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 | 2 | 0 | ND |
2019 | ND | 6 | 0 | ND |
ppb = parts per billion
All test results
Date | Lab ID | Result |
---|---|---|
2018-12-03 | 4143357 | ND |
2018-12-03 | 4143373 | ND |
2019-03-18 | 4234987 | ND |
2019-03-18 | 4235040 | ND |
2019-06-03 | 4316366 | ND |
2019-06-03 | 4316367 | ND |
2019-10-29 | 4472799 | ND |
2019-10-29 | 4472816 | ND |