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EWG's Tap Water Database — 2019 UPDATE

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Dichloromethane (methylene chloride)

NJ American Water - Atlantic County

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.

 

103

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND140ND
2013ND140ND
2014ND240ND
2015ND130ND
2016ND140ND
2017ND240ND

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
2012-01-0615704201ND
2012-01-1315704801ND
2012-04-0516104801ND
2012-04-0516105101ND
2012-04-1117053101ND
2012-05-2416735401ND
2012-06-2218194201ND
2012-07-0616836101ND
2012-07-1216836701ND
2012-07-1216837301ND
2012-07-2017999001ND
2012-10-0519744601ND
2012-10-0519744901ND
2012-10-1219745401ND
2013-01-1120651001ND
2013-01-1120651401ND
2013-04-0521552701ND
2013-04-1021552101ND
2013-04-1221553101ND
2013-05-2021915901ND
2013-05-2421918701ND
2013-07-1222602201ND
2013-07-1722602601ND
2013-07-1722601101ND
2013-07-1722603101ND
2013-10-0823555901ND
2013-10-1123556601ND
2013-10-1123557001ND
2014-01-0324541201ND
2014-01-0324541601ND
2014-01-1424541901ND
2014-01-1424542901ND
2014-01-1424542401ND
2014-01-1424543401ND
2014-03-1124928001ND
2014-04-0425377401ND
2014-04-1125376901ND
2014-04-1725376101ND
2014-04-1725376501ND
2014-04-2125379301ND
2014-04-3025378101ND
2014-06-2025757601ND
2014-06-2325375801ND
2014-06-2525759601ND
2014-06-3026409001ND
2014-07-0126173401ND
2014-07-0126172201ND
2014-07-0125758501ND
2014-07-1726174101ND
2014-10-1027211401ND
2014-10-1027210901ND
2014-10-2427212001ND
2015-01-0227844301ND
2015-01-0227843501ND
2015-04-1728526301ND
2015-04-1728524701ND
2015-04-2428527201ND
2015-05-2729039201ND
2015-07-1029749601ND
2015-07-1029748501ND
2015-07-1029750301ND
2015-07-1029751201ND
2015-10-0230495801ND
2015-10-0230495301ND
2015-10-0230496401ND
2016-01-1131080201ND
2016-01-1331080901ND
2016-04-0131800501ND
2016-04-0131799301ND
2016-04-2931801601ND
2016-05-2732074501ND
2016-07-1232520901ND
2016-07-2232832601ND
2016-07-2232831601ND
2016-07-2232833301ND
2016-07-2232834201ND
2016-10-1433647401ND
2016-10-2733646801ND
2016-10-2833646301ND
2017-01-1634425301ND
2017-01-1634426301ND
2017-01-1634425701ND
2017-01-1634426701ND
2017-01-2034423901ND
2017-03-0735001101ND
2017-03-3134424601ND
2017-04-0535316301ND
2017-04-1735316001ND
2017-04-2835316501ND
2017-04-2835315501ND
2017-04-2835317101ND
2017-05-2435583301ND
2017-05-2635582701ND
2017-06-1435983601ND
2017-06-1435983301ND
2017-07-2136468801ND
2017-07-2136468001ND
2017-07-2136469501ND
2017-07-2136470101ND
2017-07-3135979501ND
2017-10-1337484801ND
2017-10-1337485901ND
2017-10-2737485301ND