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EWG's Tap Water Database — 2021 UPDATE

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Methoxychlor

Monterey Park Water Department

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

 

26

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
2016N/A00N/A
2017ND40ND
2018ND40ND
2019ND180ND

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
2017-01-109590-081-0835ND
2017-01-109590-038-0930ND
2017-01-109590-010-1035ND
2017-01-109590-013-0950ND
2018-02-079590-081-0815ND
2018-02-079590-038-1030ND
2018-02-079590-010-1100ND
2018-02-079590-013-1130ND
2019-01-099590-081-0900ND
2019-01-099590-038-1130ND
2019-01-099590-010-1100ND
2019-02-289588-011-1145ND
2019-02-289588-010-1220ND
2019-02-289588-006-1240ND
2019-02-289588-038-1205ND
2019-02-289588-002-1115ND
2019-02-289588-001-1130ND
2019-05-209588-010-1035ND
2019-05-209588-011-0920ND
2019-05-209588-013-0945ND
2019-05-209588-006-0940ND
2019-05-209588-002-0905ND
2019-05-209588-038-1020ND
2019-05-209588-001-0850ND
2019-05-219590-013-0950ND
2019-08-279588-013-0935ND