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EWG's Tap Water Database — 2019 UPDATE

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Methoxychlor

Ashebrook Park

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.

 

25

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND40ND
2013ND30ND
2014ND80ND
2015ND40ND
2016ND40ND
2017ND20ND

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
2012-05-29C202008-01ND
2012-05-29C202008-02ND
2012-09-03C207476-01ND
2012-11-07C210067-01ND
2013-02-04C213930-02ND
2013-02-04C213930-01ND
2013-05-20C302376-01ND
2014-01-14C400144-01ND
2014-01-22C316522-01ND
2014-04-08C402857-02ND
2014-04-08C402857-01ND
2014-07-23C406507-01ND
2014-07-24C406507-02ND
2014-10-16C411356-02ND
2014-10-16C411356-01ND
2015-01-21ND
2015-01-22ND
2015-07-21ND
2015-10-14ND
2016-01-19C516505-01ND
2016-01-25CZ01132-01ND
2016-04-19CZ02766-01ND
2016-10-10CZ12924-01ND
2017-04-11CA02612-01ND
2017-11-01CA13383-01ND