Menu

EWG's Tap Water Database — 2019 UPDATE

Donate

Methoxychlor

La Habra Heights County Water District

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.

 

12

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND40ND
2013N/A00N/A
2014N/A00N/A
2015ND60ND
2016ND20ND
2017N/A00N/A

ppb = parts per billion

State and national drinking water standards and health guidelines

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
2012-03-292706-009-0855ND
2012-03-292706-010-0920ND
2012-04-172706-009-1308ND
2012-04-172706-010-1335ND
2015-04-109588-009-0909ND
2015-04-109588-010-0920ND
2015-07-289588-009-0935ND
2015-07-289588-010-1057ND
2015-09-169588-006-1010ND
2015-12-169588-006-0955ND
2016-03-219588-005-0920ND
2016-06-039588-005-1005ND