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EWG's Tap Water Database — 2021 UPDATE

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Chloromethane

Jersey City Municipal Utilities Authority

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.

 

17

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND50ND
2015ND70ND
2016ND50ND
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
2014-01-084010151-01ND
2014-05-014050039-01ND
2014-07-104070373-01ND
2014-10-094100377-01ND
2014-11-13201411150143AMND
2015-01-232051449001ND
2015-02-10201502110388AMND
2015-05-07201505080270AMND
2015-05-182071509001ND
2015-07-082081641001ND
2015-08-11201508120683AMND
2015-10-282104484001ND
2016-01-052116961001ND
2016-02-252126760001ND
2016-04-042133843001ND
2016-08-042165555001ND
2016-10-062180646001ND