Know Your Environment. Protect Your Health.

Methoxychlor

City of Mountain Home

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.

 

38

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND10ND
2019ND60ND
2020N/A00N/A
2021ND130ND
2022ND170ND
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
2018-08-01S1836908ND
2019-06-11S1927642ND
2019-06-11S1927641ND
2019-07-25S1936441ND
2019-07-25S1936442ND
2019-07-25S1936443ND
2019-12-03S1960165ND
2021-09-09S2147367ND
2021-09-09S2147369ND
2021-09-09S2147371ND
2021-09-22S2150231ND
2021-10-14S2155146ND
2021-10-20S2156407ND
2021-10-20S2156403ND
2021-10-20S2156406ND
2021-10-20S2156401ND
2021-10-20S2156405ND
2021-10-20S2156408ND
2021-10-20S2156402ND
2021-10-20S2156404ND
2022-02-24S2209172ND
2022-02-24S2209173ND
2022-02-24S2209171ND
2022-02-24S2209169ND
2022-02-24S2209174ND
2022-05-11S2222516ND
2022-05-11S2222518ND
2022-05-11S2222541ND
2022-07-20S2234917ND
2022-10-19S2252295ND
2022-10-19S2252291ND
2022-10-19S2252293ND
2022-10-19S2252294ND
2022-10-19S2252296ND
2022-10-19S2252297ND
2022-10-19S2252298ND
2022-10-19S2252299ND
2023-03-21SMDC0635-01ND