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EWG's Tap Water Database — 2019 UPDATE

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Methoxychlor

St. Louis City

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.

 

48

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND100ND
2013ND60ND
2014ND80ND
2015ND60ND
2016ND100ND
2017ND80ND

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
2012-02-16CRCW021612M508ND
2012-02-17HBCB021712M508ND
2012-05-09AB71796ND
2012-05-09AB71797ND
2012-05-09HBCB050912M508ND
2012-05-21CRCW052112M508ND
2012-09-25HBCB092512M508BND
2012-09-25CRCW092512M508BND
2012-12-11CRCW121112M508ND
2012-12-11HBCB121112M508ND
2013-03-21CRCW032113M508ND
2013-03-21HBCB032113M508ND
2013-05-06AB97904ND
2013-05-06AB97903ND
2013-09-20CRCW092013M508ND
2013-09-20HBCB092013M508ND
2014-03-27CRCW032714M508ND
2014-03-27HBCB032714M508ND
2014-06-02AC23739ND
2014-06-02AC23738ND
2014-10-24HBCB102414M508ND
2014-10-29CRCW102914M508ND
2014-12-15HBCB121514M508ND
2014-12-16CRCW121614M508ND
2015-06-01AC47106ND
2015-06-01AC47107ND
2015-09-30HBCB093015M508ND
2015-09-30CRCW093015M508ND
2015-12-11HBCB121115M508ND
2015-12-23CRCW122315M508ND
2016-03-31CRCW033116M508ND
2016-03-31HBCB033116M508ND
2016-05-17HBCB051716M508ND
2016-05-23CRCW052316M508ND
2016-06-06AC75865ND
2016-06-06AC75864ND
2016-07-18HBCB071816M508ND
2016-07-18CRCW071816M508ND
2016-10-25HBCB102516M508ND
2016-10-25CRCW102516M508ND
2017-05-19AC98044ND
2017-05-19AC98045ND
2017-06-21AC99039ND
2017-06-21AC99038ND
2017-09-11AD07442ND
2017-09-11AD07443ND
2017-10-31CRCW103117M508ND
2017-10-31HBCB103117M508ND