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EWG's Tap Water Database — 2021 UPDATE

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Permethrin

Mahwah Water Department

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.

 

12

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
2018ND110ND
2019ND10ND

ppb = parts per billion

All test results

Date Lab ID Result
2018-06-117054529005SEA1ND
2018-06-117054529006SEA1ND
2018-06-117054529007SEA1ND
2018-06-117054529008SEA1ND
2018-06-117054529009SEA1ND
2018-09-137064935005SEA2ND
2018-12-137074028005SEA2ND
2018-12-137074028006SEA2ND
2018-12-137074028007SEA2ND
2018-12-137074028008SEA2ND
2018-12-137074028009SEA3ND
2019-03-067081624005SEA4ND