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EWG's Tap Water Database — 2021 UPDATE

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Dichloromethane (methylene chloride)

Wayne Water Districts

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.

MORE ABOUT THIS CONTAMINANT

 

116

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND180ND
2015ND190ND
2016ND120ND
2017ND220ND
2018ND310ND
2019ND140ND

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
2014-02-058480-020514-ET2VND
2014-03-058480-030514-E05VND
2014-03-058480-030514-E06VND
2014-03-058480-030514-E11VND
2014-04-308480-043014-E36VND
2014-04-308480-043014-E38VND
2014-05-228480-052214-E05VND
2014-06-258480-062514-E11VND
2014-07-238480-072314-E03VND
2014-07-238480-072314-E30VND
2014-07-238480-072314-E37VND
2014-07-238480-072314-E41VND
2014-07-238480-072314-ET1VND
2014-09-258480-092514-E11VND
2014-10-298480-102914-E08VND
2014-10-298480-102914-E1AVND
2014-12-038480-120314-E11VND
2014-12-188480-121814-ET3VND
2015-01-14ND
2015-01-14ND
2015-02-11ND
2015-04-29ND
2015-04-29ND
2015-06-24ND
2015-07-08ND
2015-07-08ND
2015-07-08ND
2015-07-08ND
2015-08-05ND
2015-08-05ND
2015-12-02ND
2015-12-02ND
2015-12-02ND
2015-12-02ND
2015-12-02ND
2015-12-09ND
2015-12-09ND
2016-01-068480-010616-E1AVND
2016-02-178480-021716-E05VND
2016-04-138480-041316-E1AVND
2016-05-248480-052416-E04VND
2016-07-208480-072016-E1AVND
2016-07-208480-072016-E30VND
2016-11-168480-111616-E01VND
2016-11-168480-111616-E07VND
2016-11-168480-111616-E09VND
2016-11-168480-111616-E11VND
2016-11-168480-111616-E40VND
2016-12-148480-121416-ET3VND
2017-03-208480-032017-ET2VND
2017-03-238480-032317-E05VND
2017-03-238480-032317-E06VND
2017-08-168480-081617-E03VND
2017-08-168480-081617-E08VND
2017-08-168480-081617-E1AVND
2017-08-168480-081617-E30VND
2017-08-168480-081617-E41VND
2017-08-168480-081617-ET1VND
2017-09-208480-092017-E67VND
2017-09-208480-092017-E68VND
2017-09-208480-092017-E71VND
2017-09-278480-092717-ET2VND
2017-11-158480-111517-E08VND
2017-11-158480-111517-E11VND
2017-11-158480-111517-E67VND
2017-11-158480-111517-E68VND
2017-11-158480-111517-E71VND
2017-11-158480-111517-ET1VND
2017-11-158480-111517-ET2VND
2017-11-158480-111517-ET3VND
2017-12-208480-122017-E30VND
2018-01-298480-012918-E67VND
2018-01-298480-012918-E68VND
2018-01-298480-012918-E71VND
2018-02-288480-022818-E08VND
2018-02-288480-022818-E30VND
2018-02-288480-022818-ET1VND
2018-02-288480-022818-ET2VND
2018-04-048480-040418-E67VND
2018-04-048480-040418-E68VND
2018-04-048480-040418-E71VND
2018-04-118480-041118-E38VND
2018-05-228480-052218-E08VND
2018-05-228480-052218-E30VND
2018-05-228480-052218-ET1VND
2018-05-228480-052218-ET2VND
2018-07-248480-072418-E1AVND
2018-07-248480-072418-E27VND
2018-07-248480-072418-E30VND
2018-07-248480-072418-E37VND
2018-07-248480-072418-E67VND
2018-07-248480-072418-E68VND
2018-07-248480-072418-E71VND
2018-09-208480-092018-E08VND
2018-09-208480-092018-ET2VND
2018-09-268480-092618-E36VND
2018-11-148480-111418-E02VND
2018-11-148480-111418-E08VND
2018-11-148480-111418-E10VND
2018-11-148480-111418-E11VND
2018-11-148480-111418-E14VND
2018-11-148480-111418-E15VND
2019-02-208480-022019-E08VND
2019-05-298480-052919-E30VND
2019-05-298480-052919-E67VND
2019-05-298480-052919-E68VND
2019-05-298480-052919-E71VND
2019-05-298480-052919-ET1VND
2019-05-298480-052919-ET2VND
2019-06-268480-062619-E04VND
2019-08-218480-082119-E08VND
2019-09-178480-091719-E36VND
2019-10-238480-102319-E01VND
2019-10-238480-102319-E07VND
2019-10-238480-102319-E09VND
2019-10-238480-102319-E40VND