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EWG's Tap Water Database — 2021 UPDATE

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Chloromethane

Bermuda Water Company Inc

Chloromethane is an industrial solvent, aerosol propellant and a refrigerant. It also forms as a byproduct of water disinfection. The EPA classifies chloromethane as possibly carcinogenic to humans.

 

14

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND70ND
2015ND70ND
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
2019N/A00N/A

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 2.69 ppb

The EWG Health Guideline of 2.69 ppb for chloromethane was defined by the Environmental Protection Agency as a benchmark for testing under the Unregulated Contaminant Monitoring Rule program. This health guideline protects against cancer.

ppb = parts per billion

All test results

Date Lab ID Result
2014-11-11201411140279AMND
2014-11-11201411130818AMND
2014-11-11201411140188AMND
2014-11-11201411130829AMND
2014-11-11201411130857AMND
2014-11-23201411260259AMND
2014-12-22201412230650AMND
2015-05-05201505060292AMND
2015-05-05201505060267AMND
2015-05-05201505060262AMND
2015-05-18201505190485AMND
2015-05-18201505190309AMND
2015-05-18201505190557AMND
2015-06-08201506090260AMND