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EWG's Tap Water Database — 2021 UPDATE

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Methoxychlor

Philadelphia 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.

 

24

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014ND60ND
2015ND30ND
2016ND30ND
2017ND60ND
2018ND30ND
2019ND30ND

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
2014-04-077422122ND
2014-04-077422120ND
2014-04-077422118ND
2014-08-197572176ND
2014-08-197572174ND
2014-08-197572178ND
2015-06-1012888357ND
2015-06-1012888333ND
2015-06-1012888309ND
2016-06-0314411730ND
2016-06-0314411780ND
2016-06-0314411755ND
2017-05-1616101009ND
2017-05-1616100984ND
2017-05-1616100959ND
2017-07-2416420622ND
2017-07-2416420597ND
2017-07-2416420647ND
2018-06-118062833-01ND
2018-06-118062834-01REND
2018-06-118062835-01ND
2019-06-259065260-01ND
2019-06-259065259-01ND
2019-07-109073648-01ND