Know Your Environment. Protect Your Health.

Methoxychlor

City of Alpine

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
2019ND30ND
2020ND10ND
2021ND20ND
2022ND30ND
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
2018-07-17Q1828669009ND
2018-07-17Q1828669010ND
2019-06-18Q1937877012ND
2019-06-18Q1937877013ND
2019-06-18Q1937877014ND
2020-06-01Q2021525025ND
2021-07-13Q2118334001ND
2021-07-13Q2118334002ND
2022-09-19Q2228089001ND
2022-09-19Q2228089011ND
2022-09-19Q2228089012ND
2023-07-24Q2329255001ND