Know Your Environment. Protect Your Health.

Methoxychlor

Four Way Special Utility District

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.

 

16

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND40ND
2019ND20ND
2020ND20ND
2021ND40ND
2022ND20ND
2023ND20ND

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
2018-03-08Q1809770001ND
2018-03-08Q1809770002ND
2018-03-08Q1809770003ND
2018-03-08Q1809770004ND
2019-06-04Q1931189013ND
2019-06-04Q1931189014ND
2020-06-17Q2024644001ND
2020-08-11Q2031797013ND
2021-06-02Q2114209001ND
2021-06-02Q2114209002ND
2021-06-02Q2114209003ND
2021-06-02Q2114209012ND
2022-03-07Q2207619001ND
2022-03-07Q2207619002ND
2023-04-24Q2315229006ND
2023-06-05Q2320826026ND