Permethrin
San Gabriel Valley Water Company-Montebello
NOTE: San Gabriel Valley Water Company-Montebello purchases water from San Gabriel Valley Water Company- El Monte which is required to test for permethrin. Sample information shown below was taken by San Gabriel Valley Water Company- El Monte.
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.
Samples
Samples exceeding legal limit (MCL)
Samples exceeding
health guidelines
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 | N/A | 0 | 0 | N/A |
| 2019 | ND | 10 | 0 | ND |
ppb = parts per billion
All test results
NOTE: San Gabriel Valley Water Company-Montebello purchases water from San Gabriel Valley Water Company- El Monte which is required to test for permethrin. Sample information shown below was taken by San Gabriel Valley Water Company- El Monte.
| Date | Lab ID | Result |
|---|---|---|
| 2019-12-05 | 9K26095-01 | ND |
| 2019-12-05 | 9K26095-02 | ND |
| 2019-12-05 | 9K26095-08 | ND |
| 2019-12-05 | 9K26095-03 | ND |
| 2019-12-05 | 9K26095-04 | ND |
| 2019-12-05 | 9K26095-05 | ND |
| 2019-12-05 | 9K26095-07 | ND |
| 2019-12-05 | 9K26095-06 | ND |
| 2019-12-05 | 9K25120-01 | ND |
| 2019-12-05 | 9K25120-02 | ND |
| 2020-06-22 | 0F08086-02 | ND |
| 2020-06-29 | 0F08072-08RE1 | ND |
| 2020-06-29 | 0F08072-07 | ND |
| 2020-06-29 | 0F29051-01 | ND |
| 2020-06-29 | 0F08072-06 | ND |
| 2020-06-29 | 0F08072-05 | ND |
| 2020-06-29 | 0F08072-04 | ND |
| 2020-06-29 | 0F08072-02 | ND |
| 2020-06-29 | 0F08072-01 | ND |