Know Your Environment. Protect Your Health.

Methoxychlor

Smackover Waterworks

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.

 

12

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND20ND
2019N/A00N/A
2020ND40ND
2021ND20ND
2022N/A00N/A
2023ND40ND

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
2018-01-3018032002306ND
2018-05-2218144007406ND
2020-01-2720030004504ND
2020-01-2720030004604ND
2020-06-2920183000201ND
2020-06-2920183000301ND
2021-03-0821070008306ND
2021-06-0721161000106ND
2023-01-31O205869-OGC-1ND
2023-01-31O205868-OGC-1ND
2023-05-31O209480-OGC-1ND
2023-05-31O209479-OGC-1ND