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EWG's Tap Water Database — 2021 UPDATE

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Methoxychlor

Beauregard Water Authority

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.

 

12

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014N/A00N/A
2015N/A00N/A
2016ND40ND
2017N/A00N/A
2018ND20ND
2019ND60ND

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
2016-01-12AB09703ND
2016-01-12AB09702ND
2016-04-13AB11108ND
2016-04-13AB11107ND
2018-01-08AB24941ND
2018-01-08AB24940ND
2019-01-17AB32612ND
2019-01-17AB32611ND
2019-04-10AB34080ND
2019-04-10AB34079ND
2019-10-17AB39406ND
2019-10-17AB39407ND