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EWG's Tap Water Database

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Methoxychlor

Status: National drinking water standard exists

 

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.

2015:

FOUND
FOUND ABOVE HEALTH GUIDELINES

1

states detected

2

utilities detected

1,531

people served

0

states over health guideline

0

utilities over health guideline

0

people served over health guideline

Health concerns for methoxychlor

Hormone disruption

Harm to the reproductive system

Harm to the kidney

Harm to the liver

Harm to the immune system

Harm to the brain and nervous system

State and national drinking water standards and health guidelines

Health Guideline 0.09 ppb

The 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.

ppb = parts per billion.

EPA Maximum Contaminant
Level (MCL) 40 ppb

The enforceable federal standard that defines the highest level of a contaminant allowed in drinking water.

ppb = parts per billion.

EPA Maximum Contaminant
Level Goal (MCLG)40.0 ppb

A non-enforceable federal health guideline. For cancer-causing chemicals, these health goals are typically set to zero.

ppb = parts per billion.

States reporting methoxychlor in drinking water

UTILITIES WITH CONTAMINATION
State UtilitiesPeople Served
Florida21,531
MORE
LESS

Utilities with the highest amounts of methoxychlor, 2015

ALL UTILITIES
LARGE UTILITIES
UtilityLocationTestsAverage levelPeople served
Pine Ridge EstatesLakeland, FL1 of 10.0900 ppb52
Waverly Water SystemLake Wales, FL1 of 40.0550 ppb1,479
UtilityLocationTestsAverage levelPeople served