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EWG's Tap Water Database — 2019 UPDATE

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Methoxychlor

East Cherry Creek Valley Water and Sanitation 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.

 

27

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND20ND
2013ND20ND
2014N/A00N/A
2015ND160ND
2016ND60ND
2017ND10ND

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 Result
2012-07-13ND
2012-10-25ND
2013-06-07ND
2013-12-05ND
2015-03-17ND
2015-03-17ND
2015-03-17ND
2015-03-17ND
2015-03-18ND
2015-03-18ND
2015-03-18ND
2015-06-08ND
2015-06-08ND
2015-06-08ND
2015-06-08ND
2015-06-23ND
2015-06-23ND
2015-06-23ND
2015-06-23ND
2015-09-29ND
2016-08-03ND
2016-08-25ND
2016-08-31ND
2016-12-01ND
2016-12-01ND
2016-12-19ND
2017-11-07ND