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EWG's Tap Water Database — 2019 UPDATE

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Dichloromethane (methylene chloride)

Atlantic City Municipal Utilities Authority

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.

 

41

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20120.685 ppb41ND - 2.74 ppb
20130.101 ppb101ND - 1.01 ppb
2014ND80ND
2015ND100ND
2016ND50ND
2017ND40ND

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
2012-04-26L4137880-1ND
2012-10-03K37856VOCND
2012-10-11L4355327-5ND
2012-11-28L4401344-12.74 ppb
2013-01-16L4462640-6ND
2013-01-16L38920VOCND
2013-01-23L39016VOCND
2013-04-16L4564986-2ND
2013-04-23L39915VOCND
2013-06-19L4650919-11.01 ppb
2013-07-25L4701713-1ND
2013-09-18L4771816-1ND
2013-10-03L4762169-18ND
2013-12-09L4862173-2ND
2014-01-16L4901499-1ND
2014-03-25L4988369-5ND
2014-07-01L1085611-2ND
2014-07-28L5178946-8ND
2014-07-28L5175072-3ND
2014-10-14L5288299-1ND
2014-11-05L5284676-6ND
2014-12-11M47835VOCND
2015-01-06N48013VOCND
2015-02-04N48329VOCND
2015-04-29N49417VOCND
2015-05-29N49936VOCND
2015-07-06N50510VOCND
2015-07-09L5700688-5ND
2015-07-21N50811VOCND
2015-08-13L5763792-1ND
2015-08-25NJ51418VOCND
2015-12-10L5956674-3ND
2016-01-06L5966600-5ND
2016-02-10L6066726-2ND
2016-04-06L6170012-2ND
2016-08-03L6366994-6ND
2016-10-05L6501851-2ND
2017-02-22L6687631-1ND
2017-04-06L6755583-1ND
2017-07-12L6903538-1ND
2017-10-16L6961470-1ND