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EWG's Tap Water Database — 2021 UPDATE

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Methoxychlor

Darbonne Ws North

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

 

24

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND20ND
2015N/A00N/A
2016ND100ND
2017ND20ND
2018N/A00N/A
2019ND100ND

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
2014-12-01AE00107ND
2014-12-01AE00107ND
2016-09-2635268076005ND
2016-09-2635268076004ND
2016-09-2635268076003ND
2016-09-2635268076001ND
2016-09-2635268076002ND
2016-09-2635268076003ND
2016-09-2635268076004ND
2016-09-2635268076005ND
2016-09-2635268076002ND
2016-09-2635268076001ND
2017-11-0635346857001ND
2017-11-0635346857001ND
2019-09-0935496832001ND
2019-09-0935496832005ND
2019-09-0935496832004ND
2019-09-0935496832003ND
2019-09-0935496832002ND
2019-09-0935496832001ND
2019-09-0935496832005ND
2019-09-0935496832004ND
2019-09-0935496832003ND
2019-09-0935496832002ND