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EWG's Tap Water Database — 2019 UPDATE

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Dichloromethane (methylene chloride)

Town of Bunkie Water System

Methylene chloride is a common industrial solvent used for paint stripping, vapor degreasing, printing, electronics manufacturing and cleaning. It causes cancer and liver damage in animal studies. Read More.

Surface and groundwater can be contaminated with methylene chloride from industrial releases and landfill leaching. The EPA considers methylene chloride likely carcinogenic to people. Long-term ingestion of drinking water with methylene chloride contamination can cause liver damage and cancer. Occupational exposure to methylene chloride and other solvents has been linked with increased risk of miscarriage. Birth defects have also been observed in studies of laboratory animals exposed to methylene chloride during pregnancy.

Click here to read more about carcinogenic VOCs.

 

18

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND60ND
2013N/A00N/A
2014N/A00N/A
2015ND80ND
2016N/A00N/A
2017ND40ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 4 ppb

The EWG Health Guideline of 4 ppb for dichloromethane (methylene chloride) 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 cancer.

EPA Maximum Contaminant
Level (MCL) 5 ppb

The legal limit for dichloromethane, established in 1992, was based on analytical detection limits at the time that the standard was set.

ppb = parts per billion

All test results

Date Lab ID Result
2012-11-13AD73130ND
2012-11-13AD73128ND
2012-11-13AD73130ND
2012-11-13AD73129ND
2012-11-13AD73128ND
2012-11-13AD73129ND
2015-11-1635217746004ND
2015-11-1635217746003ND
2015-11-1635217746002ND
2015-11-1635217746001ND
2015-11-1635217746004ND
2015-11-1635217746001ND
2015-11-1635217746002ND
2015-11-1635217746003ND
2017-03-2735303256016ND
2017-03-2735303256015ND
2017-03-2735303256016ND
2017-03-2735303256015ND