Know Your Environment. Protect Your Health.

Methoxychlor

City of La Grande

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.

 

15

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
2019N/A00N/A
2020ND100ND
2021N/A00N/A
2022N/A00N/A
2023ND50ND

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
2020-04-011981621-SND
2020-04-011981631-SND
2020-04-011981641-SND
2020-04-011981611-SND
2020-04-011981651-SND
2020-07-082008371-SND
2020-07-082008391-SND
2020-07-082008351-SND
2020-07-082008361-SND
2020-07-082008381-SND
2023-04-192302051-SND
2023-04-192302071-SND
2023-04-192302041-SND
2023-04-192302061-SND
2023-04-192302081-SND