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EWG's Tap Water Database — 2021 UPDATE

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Permethrin

Woodstock

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.

 

18

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014N/A00N/A
2015N/A00N/A
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
2019ND160ND

ppb = parts per billion

All test results

Date Lab ID Result
2019-04-024245912ND
2019-04-024245916ND
2019-04-114257940ND
2019-04-114257960ND
2019-04-114257948ND
2019-04-114257944ND
2019-04-164262388ND
2019-07-114350508ND
2019-07-114350520ND
2019-10-104451910ND
2019-10-104451879ND
2019-10-104451962ND
2019-10-104451883ND
2019-10-104452376ND
2019-10-104451958ND
2019-10-104451931ND
2020-01-074531118ND
2020-01-074531114ND