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EWG's Tap Water Database — 2021 UPDATE

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Chloromethane

Suez Water New Jersey Franklin Lakes

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.

 

13

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND40ND
2015ND40ND
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
2014-05-294050853-01ND
2014-07-114070413-01ND
2014-07-164070501-01ND
2014-10-024100133-01ND
2015-02-062054002001ND
2015-04-102064710001ND
2015-07-102082528001ND
2015-10-022099627001ND
2016-01-082117771001ND
2016-04-012133841001ND
2016-07-012156727001ND
2016-07-062156721001ND
2016-10-072181825001ND