Know Your Environment. Protect Your Health.

Methoxychlor

City of Chandler

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.

 

22

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND50ND
2019ND30ND
2020ND30ND
2021ND50ND
2022ND30ND
2023ND30ND

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
2018-05-31Q1821776004ND
2018-05-31Q1821776003ND
2018-10-15Q1840931007ND
2018-10-15Q1840931008ND
2018-10-15Q1840931009ND
2019-03-19Q1911348002ND
2019-03-19Q1911348014ND
2019-09-11Q1963871005ND
2020-03-24Q2012436013ND
2020-03-24Q2012436014ND
2020-06-23Q2025085011ND
2021-05-04Q2111316001ND
2021-05-04Q2111316004ND
2021-05-04Q2111316003ND
2021-05-04Q2111316002ND
2021-12-15Q2135508001ND
2022-03-31Q2210090001ND
2022-03-31Q2210090002ND
2022-03-31Q2210090003ND
2023-01-12Q2301951012ND
2023-01-12Q2301951022ND
2023-10-02Q2342088008ND