Menu

EWG's Tap Water Database — 2019 UPDATE

Donate

Dichloromethane (methylene chloride)

Edina

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.

 

60

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND70ND
2013ND110ND
2014ND90ND
2015ND40ND
2016ND110ND
2017ND180ND

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
2012-03-2712C0955-01ND
2012-08-1612H1756-01ND
2012-08-1612H1756-03ND
2012-08-1612H1756-02ND
2012-09-1012I0373-01ND
2012-09-1012I0373-02ND
2012-11-0112K0073-01ND
2013-02-2713B1314-01ND
2013-05-3013E2570-01ND
2013-05-3013E2570-02ND
2013-05-3013E2570-03ND
2013-05-3013E2572-03ND
2013-07-2513G2162-03ND
2013-07-2513G2162-02ND
2013-07-2513G2162-01ND
2013-07-2513G2161-01ND
2013-07-2513G2159-04ND
2013-07-2513G2159-03ND
2014-06-3014F2153-01ND
2014-08-2014H1839-01ND
2014-08-2014H1839-02ND
2014-08-2014H1839-03ND
2014-08-2014H1839-04ND
2014-08-2014H1844-01ND
2014-08-2014H1844-02ND
2014-11-1914K0831-01ND
2014-11-1914K0831-02ND
2015-03-2515C1026-01ND
2015-05-1915E1395-01ND
2015-09-0315I0285-01ND
2015-12-0415L0261-01ND
2016-04-113428699ND
2016-04-113428678ND
2016-04-113428662ND
2016-04-113428612ND
2016-06-203475892ND
2016-06-213478338ND
2016-06-213475934ND
2016-06-213475907ND
2016-06-213475844ND
2016-06-213475817ND
2016-12-1416L0584-01ND
2017-02-0717B0344-01ND
2017-02-0717B0344-02ND
2017-02-0717B0344-03ND
2017-02-0717B0344-04ND
2017-02-0717B0347-01ND
2017-04-1317D0832-01ND
2017-04-1317D0832-02ND
2017-04-1317D0832-03ND
2017-05-1517E1214-01ND
2017-05-1517E1213-01ND
2017-07-2617G1806-02ND
2017-07-2617G1806-01ND
2017-07-2617G1826-04ND
2017-07-2617G1826-03ND
2017-07-2617G1826-02ND
2017-07-2617G1826-01ND
2017-12-1917L0684-02ND
2017-12-1917L0684-01ND