Know Your Environment. Protect Your Health.

Methoxychlor

Patton Village West Water System

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
2019ND10ND
2020ND40ND
2021ND20ND
2022ND30ND
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
2019-12-02AE90867ND
2020-07-30AF21490ND
2020-07-30AF21491ND
2020-07-30AF21492ND
2020-12-11AF37557ND
2021-01-12AF38948ND
2021-05-07AF53087ND
2022-06-06AF99755ND
2022-08-10AG08681ND
2022-10-18AG17508ND
2023-01-10AG23856ND
2023-04-03AG35240ND
2023-05-10AG40108ND
2023-07-14AG48876ND
2023-10-26AG61348ND