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EWG's Tap Water Database — 2021 UPDATE

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Methoxychlor

Mililani

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.

MORE ABOUT THIS CONTAMINANT

 

28

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014ND180ND
2015N/A00N/A
2016N/A00N/A
2017ND50ND
2018ND30ND
2019ND20ND

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
2014-01-30201402060226ND
2014-01-30201402060226ND
2014-02-11201402140316ND
2014-02-11201402140316ND
2014-02-18201402200344ND
2014-02-18201402200346ND
2014-02-18201402200346ND
2014-02-18201402200344ND
2014-02-25201402280294ND
2014-02-25201402280294ND
2014-03-05201403070222ND
2014-03-05201403070222ND
2014-07-08201407100616ND
2014-07-08201407100616ND
2014-10-24201410280162ND
2014-10-24201410280162ND
2014-10-31201411040540ND
2014-10-31201411040540ND
2017-02-01ND
2017-02-09ND
2017-11-01ND
2017-11-01ND
2017-11-14ND
2018-01-29201801300809ND
2018-04-10201804130364ND
2018-10-24201810260095ND
2019-03-12201903020135ND
2019-06-27201906190032ND