Permethrin
Butte-Silver Bow Water Department
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.
12
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 | 12 | 0 | ND |
| 2019 | N/A | 0 | 0 | N/A |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2018-02-12 | B8B1297-01_EPA 5 | ND |
| 2018-02-12 | B8B1297-02_EPA 5 | ND |
| 2018-02-12 | B8B1297-03_EPA 5 | ND |
| 2018-05-08 | B8E1190-02 | ND |
| 2018-05-08 | B8E1190-03 | ND |
| 2018-06-18 | B8F1947-01 | ND |
| 2018-08-07 | B8H0987-01 | ND |
| 2018-08-07 | B8H0987-02 | ND |
| 2018-08-07 | B8H0987-03 | ND |
| 2018-11-07 | B8K1033-01 | ND |
| 2018-11-07 | B8K1208-01 | ND |
| 2018-11-07 | B8K1208-02 | ND |