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EWG's Tap Water Database — 2021 UPDATE

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Permethrin

Desert Water Agency

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.

 

21

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
2018ND210ND
2019N/A00N/A

ppb = parts per billion

All test results

Date Lab ID Result
2018-03-13201803141060ND
2018-03-13201803141061ND
2018-04-18201804190500ND
2018-04-18201804190499ND
2018-04-18201804190501ND
2018-04-18201804190505ND
2018-04-18201804190502ND
2018-04-18201804190503ND
2018-04-18201804190504ND
2018-06-12201806140955ND
2018-06-12201806140954ND
2018-09-19201809200504ND
2018-09-19201809200402ND
2018-12-11201812120344ND
2018-12-11201812120323ND
2018-12-11201812120322ND
2018-12-11201812120343ND
2018-12-11201812120342ND
2018-12-11201812120341ND
2018-12-11201812120340ND
2018-12-11201812120339ND