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EWG's Tap Water Database — 2021 UPDATE

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Permethrin

City of Watsonville

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.

MORE ABOUT THIS CONTAMINANT

 

24

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
2019N/A00N/A

ppb = parts per billion

All test results

Date Lab ID Result
2020-03-11202003130089ND
2020-03-11202003130096ND
2020-03-11202003130123ND
2020-03-11202003130108ND
2020-03-11202003130158ND
2020-03-11202003130098ND
2020-03-11202003130115ND
2020-03-11202003130120ND
2020-03-11202003130105ND
2020-03-11202003130103ND
2020-03-11202003130092ND
2020-06-10202006120068ND
2020-09-16202009180235ND
2020-09-16202009180231ND
2020-09-16202009180237ND
2020-09-16202009180240ND
2020-09-16202009180238ND
2020-09-16202009180239ND
2020-09-16202009180228ND
2020-09-16202009180236ND
2020-09-16202009180229ND
2020-09-16202009180230ND
2020-09-16202009180241ND
2020-11-04202011060127ND