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EWG's Tap Water Database — 2021 UPDATE

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Permethrin

Cross Valley Water District

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
2013N/A00N/A
2014N/A00N/A
2015N/A00N/A
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
2019ND70ND

ppb = parts per billion

All test results

Date Lab ID Result
2019-09-0419-33979-65636ND
2019-09-0419-33964-65584ND
2019-09-0419-33964-65585ND
2019-09-0419-33964-65586ND
2019-09-0419-33964-65587ND
2019-09-0419-33964-65588ND
2019-12-1719-47908-93034ND
2020-03-0520-08306-16185ND
2020-03-0520-08306-16187ND
2020-03-0520-08306-16188ND
2020-03-0520-08306-16189ND
2020-03-0520-08306-16190ND
2020-03-0620-08306-16186ND
2020-06-0820-18381-35173ND