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EWG's Tap Water Database — 2021 UPDATE

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Permethrin

Hartford 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.

 

10

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
2019ND50ND

ppb = parts per billion

All test results

Date Lab ID Result
2019-07-101133515ND
2019-07-101133517ND
2019-07-101133507ND
2019-07-101133509ND
2019-07-101133513ND
2020-01-201170165ND
2020-01-201170171ND
2020-01-201170169ND
2020-01-201170160ND
2020-01-201170167ND