Know Your Environment. Protect Your Health.

Methoxychlor

Rockwood People's Utilities Department

NOTE: Rockwood People's Utilities Department purchases water from Portland Water Bureau which is required to test for methoxychlor. Sample information shown below was taken by Portland Water Bureau.

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.

 

9

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND10ND
2019ND20ND
2020ND30ND
2021ND10ND
2022ND20ND
2023ND40ND

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

NOTE: Rockwood People's Utilities Department purchases water from Portland Water Bureau which is required to test for methoxychlor. Sample information shown below was taken by Portland Water Bureau.

Date Lab ID Result
2018-03-15BC03118-SND
2020-05-12BC38533-SND
2020-08-04202008070432-SND
2020-08-05202008070418-SND
2021-08-04BC60213-SND
2023-04-25380-45349-1-SND
2023-08-15380-59561-1-SND
2023-08-29380-61323-1ND
2023-10-02380-65583-1-SND