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EWG's Tap Water Database — 2021 UPDATE

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Dichloromethane (methylene chloride)

Baton Rouge Water Company

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

 

394

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND680ND
2015ND400ND
2016ND880ND
2017ND760ND
2018ND540ND
2019ND680ND

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
2014-01-13AD88277ND
2014-01-13AD88278ND
2014-01-13AD88279ND
2014-01-13AD88280ND
2014-01-13AD88281ND
2014-01-13AD88277ND
2014-01-13AD88278ND
2014-01-13AD88279ND
2014-01-13AD88280ND
2014-01-13AD88281ND
2014-05-05AD91129ND
2014-05-05AD91130ND
2014-05-05AD91131ND
2014-05-05AD91132ND
2014-05-05AD91133ND
2014-05-05AD91129ND
2014-05-05AD91130ND
2014-05-05AD91131ND
2014-05-05AD91132ND
2014-05-05AD91133ND
2014-05-12AD91432ND
2014-05-12AD91433ND
2014-05-12AD91434ND
2014-05-12AD91435ND
2014-05-12AD91436ND
2014-05-12AD91432ND
2014-05-12AD91433ND
2014-05-12AD91434ND
2014-05-12AD91435ND
2014-05-12AD91436ND
2014-05-19AD91649ND
2014-05-19AD91650ND
2014-05-19AD91651ND
2014-05-19AD91652ND
2014-05-19AD91653ND
2014-05-19AD91649ND
2014-05-19AD91650ND
2014-05-19AD91651ND
2014-05-19AD91652ND
2014-05-19AD91653ND
2014-06-09AD92073ND
2014-06-09AD92073ND
2014-07-14AD93462ND
2014-07-14AD93463ND
2014-07-14AD93464ND
2014-07-14AD93462ND
2014-07-14AD93463ND
2014-07-14AD93464ND
2014-07-21AD93465ND
2014-07-21AD94007ND
2014-07-21AD94008ND
2014-07-21AD94009ND
2014-07-21AD94010ND
2014-07-21AD94011ND
2014-07-21AD93465ND
2014-07-21AD94007ND
2014-07-21AD94008ND
2014-07-21AD94009ND
2014-07-21AD94010ND
2014-07-21AD94011ND
2014-08-11AD95163ND
2014-08-11AD95164ND
2014-08-11AD95165ND
2014-08-11AD95167ND
2014-08-11AD95163ND
2014-08-11AD95164ND
2014-08-11AD95165ND
2014-08-11AD95167ND
2015-03-3035181845005ND
2015-03-3035181845005ND
2015-07-0635196455004ND
2015-07-0635196455005ND
2015-07-0635196455004ND
2015-07-0635196455005ND
2015-08-0335200997001ND
2015-08-0335200997002ND
2015-08-0335200997003ND
2015-08-0335200997004ND
2015-08-0335200997005ND
2015-08-0335200997001ND
2015-08-0335200997002ND
2015-08-0335200997003ND
2015-08-0335200997004ND
2015-08-0335200997005ND
2015-08-1735203438001ND
2015-08-1735203438002ND
2015-08-1735203438001ND
2015-08-1735203438002ND
2015-08-3135205974004ND
2015-08-3135205974005ND
2015-08-3135205974004ND
2015-08-3135205974005ND
2015-11-0235215110001ND
2015-11-0235215110002ND
2015-11-0235215110003ND
2015-11-0235215110001ND
2015-11-0235215110002ND
2015-11-0235215110003ND
2015-11-3035219066001ND
2015-11-3035219066002ND
2015-11-3035219066003ND
2015-11-3035219066004ND
2015-11-3035219066005ND
2015-11-3035219066001ND
2015-11-3035219066002ND
2015-11-3035219066003ND
2015-11-3035219066004ND
2015-11-3035219066005ND
2016-01-1235225030004ND
2016-01-1235225030005ND
2016-01-1235225030004ND
2016-01-1235225030005ND
2016-01-2535227129001ND
2016-01-2535227129002ND
2016-01-2535227129003ND
2016-01-2535227129004ND
2016-01-2535227129005ND
2016-01-2535227129001ND
2016-01-2535227129002ND
2016-01-2535227129003ND
2016-01-2535227129004ND
2016-01-2535227129005ND
2016-02-2935232145001ND
2016-02-2935232145002ND
2016-02-2935232145003ND
2016-02-2935232145001ND
2016-02-2935232145002ND
2016-02-2935232145003ND
2016-04-1135239236001ND
2016-04-1135239236002ND
2016-04-1135239236003ND
2016-04-1135239236004ND
2016-04-1135239236001ND
2016-04-1135239236002ND
2016-04-1135239236003ND
2016-04-1135239236004ND
2016-04-2035240674001ND
2016-04-2035240674002ND
2016-04-2035240674001ND
2016-04-2035240674002ND
2016-04-2735241963001ND
2016-04-2735241963002ND
2016-04-2735241963003ND
2016-04-2735241963004ND
2016-04-2735241963005ND
2016-04-2735241963001ND
2016-04-2735241963002ND
2016-04-2735241963003ND
2016-04-2735241963004ND
2016-04-2735241963005ND
2016-05-0335243244001ND
2016-05-0335243244002ND
2016-05-0335243244003ND
2016-05-0335243244004ND
2016-05-0335243244005ND
2016-05-0335243244001ND
2016-05-0335243244002ND
2016-05-0335243244003ND
2016-05-0335243244004ND
2016-05-0335243244005ND
2016-05-2335246272001ND
2016-05-2335246272002ND
2016-05-2335246272003ND
2016-05-2335246272004ND
2016-05-2335246272005ND
2016-05-2335246272001ND
2016-05-2335246272002ND
2016-05-2335246272003ND
2016-05-2335246272004ND
2016-05-2335246272005ND
2016-06-1535250200001ND
2016-06-1535250200002ND
2016-06-1535250200003ND
2016-06-1535250200001ND
2016-06-1535250200002ND
2016-06-1535250200003ND
2016-08-2235261432001ND
2016-08-2235261432002ND
2016-08-2235261432001ND
2016-08-2235261432002ND
2016-08-3035263152001ND
2016-08-3035263152001ND
2016-09-1435265890005ND
2016-09-1435265890005ND
2016-09-2035267198001ND
2016-09-2035267198002ND
2016-09-2035267198003ND
2016-09-2035267198004ND
2016-09-2035267198005ND
2016-09-2035267198001ND
2016-09-2035267198002ND
2016-09-2035267198003ND
2016-09-2035267198004ND
2016-09-2035267198005ND
2016-10-0535270134001ND
2016-10-0535270134001ND
2017-01-1735289852001ND
2017-01-1735289852002ND
2017-01-1735289852003ND
2017-01-1735289852004ND
2017-01-1735289852005ND
2017-01-1735289852001ND
2017-01-1735289852002ND
2017-01-1735289852003ND
2017-01-1735289852004ND
2017-01-1735289852005ND
2017-01-1935290610001ND
2017-01-1935290610001ND
2017-04-2435308489001ND
2017-04-2435308489002ND
2017-04-2435308489003ND
2017-04-2435308489001ND
2017-04-2435308489002ND
2017-04-2435308489003ND
2017-05-1535312720001ND
2017-05-1535312720002ND
2017-05-1535312720003ND
2017-05-1535312720004ND
2017-05-1535312720005ND
2017-05-1535312720001ND
2017-05-1535312720002ND
2017-05-1535312720003ND
2017-05-1535312720004ND
2017-05-1535312720005ND
2017-05-2335314374001ND
2017-05-2335314374002ND
2017-05-2335314374003ND
2017-05-2335314374004ND
2017-05-2335314374005ND
2017-05-2335314374001ND
2017-05-2335314374002ND
2017-05-2335314374003ND
2017-05-2335314374004ND
2017-05-2335314374005ND
2017-06-0535316773001ND
2017-06-0535316773002ND
2017-06-0535316773003ND
2017-06-0535316773001ND
2017-06-0535316773002ND
2017-06-0535316773003ND
2017-06-1935319736004ND
2017-06-1935319736005ND
2017-06-1935319736004ND
2017-06-1935319736005ND
2017-06-2735321021001ND
2017-06-2735321021002ND
2017-06-2735321021003ND
2017-06-2735321021004ND
2017-06-2735321021005ND
2017-06-2735321021001ND
2017-06-2735321021002ND
2017-06-2735321021003ND
2017-06-2735321021004ND
2017-06-2735321021005ND
2017-07-1835325014001ND
2017-07-1835325014002ND
2017-07-1835325014003ND
2017-07-1835325014004ND
2017-07-1835325014001ND
2017-07-1835325014002ND
2017-07-1835325014003ND
2017-07-1835325014004ND
2017-07-2535326516001ND
2017-07-2535326516005ND
2017-07-2535326516001ND
2017-07-2535326516005ND
2017-08-0235328338001ND
2017-08-0235328338001ND
2017-11-2835360036001ND
2017-11-2835360036001ND
2017-12-0535361478001ND
2017-12-0535361478001ND
2018-01-2935371282004ND
2018-01-2935371282004ND
2018-03-1235379759001ND
2018-03-1235379759002ND
2018-03-1235379759001ND
2018-03-1235379759002ND
2018-04-1035385805004ND
2018-04-1035385805005ND
2018-04-1035385805004ND
2018-04-1035385805005ND
2018-04-1735386963001ND
2018-04-1735386963002ND
2018-04-1735386963003ND
2018-04-1735386963004ND
2018-04-1735386963001ND
2018-04-1735386963002ND
2018-04-1735386963003ND
2018-04-1735386963004ND
2018-06-1135398105001ND
2018-06-1135398105002ND
2018-06-1135398105001ND
2018-06-1135398105002ND
2018-09-2035419431001ND
2018-09-2035419431002ND
2018-09-2035419431003ND
2018-09-2035419431004ND
2018-09-2035419431001ND
2018-09-2035419431002ND
2018-09-2035419431003ND
2018-09-2035419431004ND
2018-09-2435420620001ND
2018-09-2435420620002ND
2018-09-2435420620003ND
2018-09-2435420620004ND
2018-09-2435420620001ND
2018-09-2435420620002ND
2018-09-2435420620003ND
2018-09-2435420620004ND
2018-12-0335434672001ND
2018-12-0335434672002ND
2018-12-0335434941001ND
2018-12-0335434672001ND
2018-12-0335434672002ND
2018-12-0335434941001ND
2018-12-0435434931001ND
2018-12-0435434931002ND
2018-12-0435434931001ND
2018-12-0435434931002ND
2018-12-1135436979001ND
2018-12-1135436979002ND
2018-12-1135436979003ND
2018-12-1135436979001ND
2018-12-1135436979002ND
2018-12-1135436979003ND
2019-01-2335444341001ND
2019-01-2335444343001ND
2019-01-2335444344001ND
2019-01-2335444341001ND
2019-01-2335444343001ND
2019-01-2335444344001ND
2019-02-1435448564001ND
2019-02-1435448564002ND
2019-02-1435448564001ND
2019-02-1435448564002ND
2019-03-1435454833001ND
2019-03-1435454833002ND
2019-03-1435454833001ND
2019-03-1435454833002ND
2019-03-1835455451001ND
2019-03-1835455451002ND
2019-03-1835455451003ND
2019-03-1835455451004ND
2019-03-1835455451001ND
2019-03-1835455451002ND
2019-03-1835455451003ND
2019-03-1835455451004ND
2019-03-2535457421001ND
2019-03-2535457421001ND
2019-04-0935460483001ND
2019-04-0935460483002ND
2019-04-0935460483003ND
2019-04-0935460483001ND
2019-04-0935460483002ND
2019-04-0935460483003ND
2019-04-2435464166001ND
2019-04-2435464166002ND
2019-04-2435464166003ND
2019-04-2435464166004ND
2019-04-2435464166001ND
2019-04-2435464166002ND
2019-04-2435464166003ND
2019-04-2435464166004ND
2019-04-2935464817001ND
2019-04-2935464817002ND
2019-04-2935464817001ND
2019-04-2935464817002ND
2019-05-1635469376001ND
2019-05-1635469376002ND
2019-05-1635469376001ND
2019-05-1635469376002ND
2019-08-2135492794001ND
2019-08-2135492794002ND
2019-08-2135492794003ND
2019-08-2135492794001ND
2019-08-2135492794002ND
2019-08-2135492794003ND
2019-10-0735503317004ND
2019-10-0735503317004ND
2019-10-2835508802001ND
2019-10-2835508802001ND
2019-11-2035514423001ND
2019-11-2035514423001ND
2019-12-0335516732001ND
2019-12-0335516732002ND
2019-12-0335516732003ND
2019-12-0335516732001ND
2019-12-0335516732002ND
2019-12-0335516732003ND
2019-12-0435516731001ND
2019-12-0435516731002ND
2019-12-0435516731001ND
2019-12-0435516731002ND