Methoxychlor

Hastings

Methoxychlor is an endocrine-disrupting, neurotoxic insecticide similar to DDT. Banned in the U.S. in 2002, methoxychlor was historically used on farm animals and in animal feed, lumber, gardens and agricultural crops.

MORE ABOUT THIS CONTAMINANT

Samples

Samples exceeding legal limit (MCL)

Samples exceeding
health guidelines

Testing results - average by year

Year	Average result	Samples taken	Range of results
2014	N/A	0	N/A
2015	ND	6	ND
2016	ND	8	ND
2017	N/A	0	N/A
2018	ND	3	ND
2019	ND	7	ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.09 ppb

The EWG Health Guideline of 0.09 ppb for methoxychlor was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against hormone disruption.

EPA Maximum Contaminant
Level (MCL) 40 ppb

The legal limit for methoxychlor, established in 1991, was based on a toxicity study in laboratory animals conducted in the 1980s.

ppb = parts per billion

All test results

Date	Lab ID	Result
2015-02-19	15B0913-02	ND
2015-02-19	15B0913-03	ND
2015-02-19	15B0913-01	ND
2015-06-09	15F0596-01	ND
2015-06-09	15F0596-02	ND
2015-06-09	15F0596-03	ND
2016-03-22	3418446	ND
2016-03-22	3418466	ND
2016-03-22	3418504	ND
2016-03-22	3418534	ND
2016-03-22	3418542	ND
2016-05-31	3461088	ND
2016-05-31	3461093	ND
2016-05-31	3461071	ND
2018-08-17	18H1558-01	ND
2018-11-01	18K0050-01	ND
2018-11-01	18K0050-02	ND
2019-01-31	19A0995-01	ND
2019-01-31	19A0996-02	ND
2019-01-31	19A0996-03	ND
2019-03-08	19C0368-01	ND
2019-05-08	19E0519-01	ND
2019-05-08	19E0519-02	ND
2019-05-08	19E0519-03	ND