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EWG's Tap Water Database — 2021 UPDATE

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Dichloromethane (methylene chloride)

Waterford Township

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.

 

26

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
2014ND180ND
2015N/A00N/A
2016N/A00N/A
2017N/A00N/A
2018ND80ND

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
2014-03-05LLF10999ND
2014-03-05LLF11000ND
2014-06-04LLF20945ND
2014-06-04LLF20944ND
2014-06-04LLF20941ND
2014-06-04LLF20947ND
2014-06-04LLF20946ND
2014-06-04LLF20942ND
2014-06-04LLF20937ND
2014-06-04LLF20939ND
2014-06-04LLF20940ND
2014-06-04LLF20936ND
2014-06-04LLF20938ND
2014-06-04LLF20943ND
2014-09-10LLF37550ND
2014-09-10LLF37549ND
2014-10-09LLF48781ND
2014-12-09LLF48780ND
2018-03-06LLH68969ND
2018-03-06LLH68968ND
2018-05-16LLH80891ND
2018-05-16LLH80892ND
2018-07-19LLH94051ND
2018-07-19LLH94052ND
2018-12-06LLI18228ND
2018-12-06LLI18229ND