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EWG's Tap Water Database — 2019 UPDATE

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Methoxychlor

City of Surprise - Mountain Vista

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.

 

92

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND160ND
2013ND160ND
2014ND160ND
2015ND120ND
2016ND170ND
2017ND150ND

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
2012-01-262012012-04SND
2012-01-262012012-03SND
2012-01-262012012-02SND
2012-01-262012012-01SND
2012-04-252042001-01SND
2012-04-252042000-01SND
2012-04-252041999-01SND
2012-04-252041994-01SND
2012-08-152081291-01SND
2012-08-152081287-01SND
2012-08-162081359-01SND
2012-09-042090143-01SND
2012-11-142111028-01SND
2012-11-142111027-01SND
2012-11-142111026-01SND
2012-11-142111024-01SND
2013-01-233011767-04ND
2013-01-233011767-03ND
2013-01-233011767-02ND
2013-01-233011767-01ND
2013-04-243041986-01SND
2013-04-243041985-01SND
2013-04-243041987-01SND
2013-04-243041989-01SND
2013-07-163071369-01SND
2013-07-163071367-01SND
2013-07-163071366-01SND
2013-07-163071362-01SND
2013-10-173101633-01ND
2013-10-173101632-01ND
2013-10-173101631-01ND
2013-10-173101630-01ND
2014-01-224011817-04SND
2014-01-224011817-01SND
2014-01-224011817-02SND
2014-01-224011817-03SND
2014-04-224041931-01ND
2014-04-224041930-01ND
2014-04-224041927-01ND
2014-04-234041928-01ND
2014-07-304072667-01SND
2014-07-304072665-01SND
2014-07-304072658-01SND
2014-07-304072656-01SND
2014-10-284102394-01SND
2014-10-284102393-01SND
2014-10-284102387-01ND
2014-10-294102491-01SND
2015-01-215011694-04ND
2015-04-205041746-01SND
2015-04-205041743-01SND
2015-04-205041742-01ND
2015-04-205041741-01ND
2015-07-285072564-01SND
2015-07-295072676-01SND
2015-07-295072682-01SND
2015-07-305072799-02SND
2015-10-125101379-01SND
2015-10-125101373-01ND
2015-10-125101369-01ND
2016-01-256012035-04TND
2016-01-256012035-03TND
2016-01-256012035-03SND
2016-01-256012035-02TND
2016-01-256012035-01TND
2016-04-266042222-01SND
2016-04-266042223-01SND
2016-04-266042227-01SND
2016-04-266042226-01SND
2016-07-266072329-01SND
2016-07-266072325-01SND
2016-07-266072323-01SND
2016-07-266072321-01SND
2016-10-246102137-01SND
2016-10-246102135-01SOCND
2016-10-246102133-01SND
2016-10-246102131-01SND
2017-01-307012591-03SND
2017-01-307012591-01SND
2017-01-307012591-02SND
2017-01-307012591-04SND
2017-04-207041996-01SOCND
2017-04-207041995-01SOCND
2017-04-207041987-01SOCND
2017-07-197071806-01SOCND
2017-07-197071805-01SOCND
2017-07-197071804-01SOCND
2017-07-197071802-01SOCND
2017-10-117101207-01SOCND
2017-10-117101207-04SOCND
2017-10-117101207-03SOCND
2017-10-117101207-02SOCND