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EWG's Tap Water Database — 2021 UPDATE

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Permethrin

Compton 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.

 

14

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
2018ND120ND
2019ND20ND

ppb = parts per billion

All test results

Date Lab ID Result
2018-06-138F08005-01ND
2018-06-138F08005-03ND
2018-06-138F08005-07ND
2018-06-138F08005-11ND
2018-06-268F25016-01ND
2018-06-268F25016-03ND
2018-09-218I11011-01ND
2018-12-198L17020-01ND
2018-12-198L17020-02ND
2018-12-198L17020-04ND
2018-12-198L17020-05ND
2018-12-198L17020-06ND
2019-03-079C05008-01ND
2019-03-229C21005-01ND