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EWG's Tap Water Database — 2019 UPDATE

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Methoxychlor

City of Hereford

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.

 

14

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND10ND
2013ND20ND
2014ND20ND
2015ND20ND
2016ND40ND
2017ND30ND

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
2012-05-30AB91356ND
2013-05-28Q1301569014ND
2013-05-28Q1301569005ND
2014-02-12Q1404321007ND
2014-02-12Q1404321006ND
2015-01-29Q1503619010ND
2015-01-29Q1503619009ND
2016-02-10Q1605969006ND
2016-02-10Q1605969005ND
2016-03-17Q1611196006ND
2016-03-17Q1611196005ND
2017-01-17Q1702053001ND
2017-04-10Q1714723003ND
2017-05-09Q1718998003ND