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EWG's Tap Water Database

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Chloromethane

Fairview Union Water System

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.

 

10

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2010ND20ND
2011ND20ND
2012ND20ND
2013ND20ND
2014ND20ND
2015N/A00N/A

ppb = parts per billion.

State and national drinking water standards and health guidelines

Health Guideline 2.69 ppb

The 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
2010-06-07AD39802ND
2010-06-07AD39802ND
2011-05-16AD53431ND
2011-05-16AD53431ND
2012-03-19AD64420ND
2012-03-19AD64420ND
2013-03-25AD76353ND
2013-03-25AD76353ND
2014-04-14AD90605ND
2014-04-14AD90605ND