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EWG's Tap Water Database — 2021 UPDATE

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Dichloromethane (methylene chloride)

Huntsville Utilities

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

 

98

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND160ND
2015ND160ND
2016ND160ND
2017ND190ND
2018ND170ND
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
2014-01-23140123033-1ND
2014-01-23140123033-4ND
2014-01-23140123033-2ND
2014-01-23140123033-3ND
2014-04-03140403063-1ND
2014-04-03140403063-3ND
2014-04-03140403063-2ND
2014-07-16140716061-4ND
2014-07-16140716061-5ND
2014-07-16140716061-2ND
2014-07-16140716061-3ND
2014-07-16140716061-1ND
2014-12-05141205071-3ND
2014-12-05141205071-4ND
2014-12-05141205071-1ND
2014-12-05141205071-2ND
2015-03-04150304064-1ND
2015-03-04150304064-2ND
2015-03-04150304064-3ND
2015-03-04150304064-4ND
2015-06-18150618047-1ND
2015-06-18150618047-3ND
2015-06-18150618047-2ND
2015-07-21150721025-1ND
2015-07-21150721025-2ND
2015-07-21150721025-3ND
2015-07-21150721025-4ND
2015-07-21150721025-5ND
2015-10-15151020032-1ND
2015-10-22151022023-1ND
2015-10-22151022023-3ND
2015-10-22151022023-2ND
2016-01-11160111042-1ND
2016-01-11160111042-4ND
2016-01-11160111042-2ND
2016-01-11160111042-3ND
2016-04-19160419012-003ND
2016-04-19160419012-002ND
2016-04-19160410012-1ND
2016-09-08160908050-5ND
2016-09-08160908050-4ND
2016-09-08160908050-1ND
2016-09-08160908050-2ND
2016-09-08160908050-3ND
2016-12-01161201071-2ND
2016-12-01161201071-1ND
2016-12-01161201071-3ND
2016-12-20161220038-1ND
2017-03-06170306053-3ND
2017-03-06170306053-1ND
2017-03-06170306053-2ND
2017-03-06170306053-4ND
2017-06-12170612025-1ND
2017-06-15170615042-1ND
2017-06-15170615042-3ND
2017-06-15170615042-2ND
2017-09-07170907096-3ND
2017-09-07170907096-4ND
2017-09-07170907096-2ND
2017-09-07170907096-5ND
2017-09-07170907096-1ND
2017-09-14170914045-1ND
2017-11-09171109043-2ND
2017-11-09171109043-4ND
2017-11-09171109043-1ND
2017-11-09171109043-004ND
2017-11-09171109043-3ND
2018-03-23180323033-1ND
2018-03-23180323033-3ND
2018-03-23180323033-4ND
2018-03-23180323033-5ND
2018-03-23180323033-2ND
2018-05-03180503023-1ND
2018-05-03180503023-3ND
2018-05-03180503023-2ND
2018-08-0218080066-001AND
2018-08-0218080066-005AND
2018-08-0218080066-002AND
2018-08-0218080066-003AND
2018-08-0218080066-004AND
2018-08-3018080781-001AND
2018-11-0118110004-002AND
2018-11-0118110004-003AND
2018-11-0118110004-001AND
2019-01-3119010741-003AND
2019-01-3119010741-004AND
2019-01-3119010741-005AND
2019-01-3119010741-002AND
2019-01-3119010741-001AND
2019-05-0219050055-001AND
2019-05-0219050055-002AND
2019-05-0219050055-003AND
2019-08-0120115133002_IVOCND
2019-08-0120115133001_IVOCND
2019-08-0120115133003_IVOCND
2019-08-0120115133004_IVOCND
2019-08-0120115133006_IVOCND
2019-11-1920131208004_IVOCND