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EWG's Tap Water Database — 2021 UPDATE

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Permethrin

Onalaska Waterworks

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.

 

8

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014N/A00N/A
2015N/A00N/A
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
2019N/A00N/A

ppb = parts per billion

All test results

Date Lab ID Result
2020-02-241176017ND
2020-02-241176019ND
2020-02-251175506ND
2020-02-251175508ND
2020-09-211217116ND
2020-09-211217118ND
2020-09-291219514ND
2020-09-291219516ND