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EWG's Tap Water Database — 2021 UPDATE

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Methoxychlor

City of Phoenix

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

 

103

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
2014ND220ND
2015ND30ND
2016ND20ND
2017ND440ND
2018ND250ND
2019ND70ND

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
2014-01-08201401080632SND
2014-01-15201401150537SND
2014-01-15201401170162SND
2014-01-16201401160568SND
2014-01-16201401170153SND
2014-01-21201401210419SND
2014-01-21201401210437SND
2014-02-122873245ND
2014-02-18201402180229SND
2014-02-19201402190362SND
2014-02-26201402260762SND
2014-04-07201404080428SND
2014-07-01201407010326SND
2014-07-01201407010385SND
2014-07-02201407020640SND
2014-07-08201407090997SND
2014-07-09201407090990SND
2014-07-15201407150420SND
2014-07-16201407160711SND
2014-07-22201407220312SND
2014-07-23201407230689SND
2014-07-23201407230696SND
2015-02-03201502030363SND
2015-07-08201507090340SND
2015-10-06201510060432SND
2016-01-05201601060237SND
2016-07-05201607050432SND
2017-01-04201701040662SND
2017-01-04201701050376SND
2017-01-04201701050396SND
2017-01-04201701050450SND
2017-01-04201701050475SND
2017-01-05201701050485SND
2017-01-10201701100450SND
2017-01-10201701100458SND
2017-01-11201701120603SND
2017-01-11201701120610SND
2017-01-17201701180214SND
2017-01-17201701180221SND
2017-01-18201701180237SND
2017-01-18201701180349SND
2017-01-25201701250388SND
2017-01-25201701250401SND
2017-02-01201702010374SND
2017-02-08201702080305SND
2017-02-22201702220343SND
2017-03-28201703280848SND
2017-04-27201704270389SND
2017-04-27201704270400SND
2017-07-05201707050526SND
2017-07-11201707110862SND
2017-07-11201707110868SND
2017-07-12201707130577SND
2017-07-12201707130583SND
2017-07-13201707130590SND
2017-07-13201707130596SND
2017-07-13201707130600SND
2017-07-13201707130607SND
2017-07-13201707130643SND
2017-07-18201707190868SND
2017-07-19201707190851SND
2017-07-26201707280154SND
2017-07-27201707280164SND
2017-07-27201707280177SND
2017-08-01201708020900SND
2017-08-01201708020915SND
2017-08-02201708030619SND
2017-08-02201708030625SND
2017-08-03201708030640SND
2017-10-10201710100358SND
2017-10-12201710120504SND
2018-04-03201804030477SND
2018-04-04201804040801SND
2018-04-04201804040808SND
2018-04-10201804100286SND
2018-04-12201804120897SND
2018-04-17201804180654SND
2018-04-19201804190476SND
2018-04-19201804190482SND
2018-04-26201804260505SND
2018-04-26201804260511SND
2018-05-09201805100697SND
2018-07-18201807180599SND
2018-07-26201807260412SND
2018-10-01201810010202SND
2018-10-02201810020708SND
2018-10-10201810100938SND
2018-10-10201810100944SND
2018-10-11201810110663SND
2018-10-16201810160506SND
2018-10-18201810190029SND
2018-10-24201810250274SND
2018-10-25201810250283SND
2018-10-30201810310413SND
2018-10-30201810310423SND
2018-11-29201811290360SND
2019-01-16201901160414SND
2019-01-29201901290199SND
2019-04-16201904160462SND
2019-04-24201904240284SND
2019-07-25201907250231SND
2019-10-17201910170327SND
2019-11-05201911051070SND