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EWG's Tap Water Database — 2021 UPDATE

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Permethrin

City of Tempe

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.

 

31

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
2018ND270ND
2019ND40ND

ppb = parts per billion

All test results

Date Lab ID Result
2018-04-09201804090343ND
2018-04-09201804090342ND
2018-04-09201804090341ND
2018-04-10201804100324ND
2018-04-10201804100323ND
2018-04-10201804100322ND
2018-04-11201804111100ND
2018-04-11201804111098ND
2018-04-11201804111097ND
2018-04-11201804111103ND
2018-04-11201804111101ND
2018-04-11201804111102ND
2018-04-16201804160524ND
2018-07-09201807090159ND
2018-07-09201807090158ND
2018-10-08201810080550ND
2018-10-08201810080549ND
2018-10-08201810080551ND
2018-10-08201810080548ND
2018-10-08201810080552ND
2018-10-09201810090396ND
2018-10-09201810090397ND
2018-10-09201810090398ND
2018-10-09201810090395ND
2018-10-09201810090390ND
2018-10-10201810100916ND
2018-11-13201811130408ND
2019-01-02201901020252ND
2019-01-03201901030467ND
2019-03-25201903250344ND
2019-05-02201905020282ND