Know Your Environment. Protect Your Health.

Methoxychlor

Falfurrias Utility Board

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.

 

14

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND50ND
2019ND10ND
2020ND10ND
2021ND50ND
2022ND10ND
2023ND10ND

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

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
2018-02-12AE13396ND
2018-02-12AE13397ND
2018-06-14AE30098ND
2018-06-14AE30099ND
2018-11-05AE45283ND
2019-11-07AE88969ND
2020-08-17AF23919ND
2021-05-26AF55962ND
2021-11-10Q2131711001ND
2021-11-10Q2131711002ND
2021-11-10Q2131711003ND
2021-11-10Q2131711004ND
2022-06-30AG03162ND
2023-04-12AG36654ND