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EWG's Tap Water Database — 2021 UPDATE

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Permethrin

Placer County Water Agency - Foothill

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.

 

4

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
2018ND30ND
2019ND10ND

ppb = parts per billion

All test results

Date Lab ID Result
2018-07-11201807130831ND
2018-07-11201807130827ND
2018-10-24201810260182ND
2019-01-08201901100355ND