Permethrin

Artesian Water Company

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.

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Samples

Samples exceeding legal limit (MCL)

Samples exceeding
health guidelines

Testing results - average by year

Year	Average result	Samples taken	Range of results
2013	N/A	0	N/A
2014	N/A	0	N/A
2015	N/A	0	N/A
2016	N/A	0	N/A
2017	N/A	0	N/A
2018	N/A	0	N/A
2019	ND	17	ND

ppb = parts per billion

All test results

Date	Lab ID	Result
2019-11-12	4483489	ND
2019-11-12	4483746	ND
2019-11-12	4483767	ND
2019-11-12	4483620	ND
2019-11-12	4483683	ND
2019-11-14	4486901	ND
2019-11-14	4487296	ND
2019-11-14	4486972	ND
2019-11-14	4487222	ND
2019-11-14	4486867	ND
2019-11-14	4487005	ND
2019-11-19	4491578	ND
2019-11-19	4491527	ND
2019-11-19	4491433	ND
2019-11-19	4491588	ND
2019-11-25	4497623	ND
2019-11-25	4497555	ND
2020-02-12	4563540	ND
2020-05-19	4631794	ND
2020-05-19	4631845	ND
2020-05-19	4631878	ND
2020-05-19	4631657	ND
2020-05-19	4631890	ND
2020-05-19	4631882	ND
2020-05-19	4631886	ND
2020-05-20	4633045	ND
2020-05-20	4633041	ND
2020-05-20	4632973	ND
2020-05-20	4632977	ND
2020-05-21	4633941	ND
2020-05-21	4633847	ND
2020-05-21	4634038	ND
2020-05-21	4633832	ND
2020-05-21	4633859	ND
2020-05-21	4633836	ND
2020-08-25	4709045	ND