Know Your Environment. Protect Your Health.

Permethrin

City of Tigard

NOTE: City of Tigard purchases water from Lake Oswego - Tigard Water Supply which is required to test for permethrin. Sample information shown below was taken by Lake Oswego - Tigard 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.

 

0

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
2019ND110ND
2020ND30ND
2021N/A00N/A
2022N/A00N/A
2023N/A00N/A

ppb = parts per billion

All test results

NOTE: City of Tigard purchases water from Lake Oswego - Tigard Water Supply which is required to test for permethrin. Sample information shown below was taken by Lake Oswego - Tigard Water Supply.

Date Lab ID Result