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EWG's Tap Water Database

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Chloromethane

Hot Springs Village Waterworks

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.

 

11

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2010ND20ND
2011ND10ND
2012ND10ND
2013ND10ND
2014ND30ND
2015ND30ND

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
2010-01-0410008000801ND
2010-01-2010021011401ND
2011-01-0411006002501ND
2012-01-0412006009109ND
2013-01-1413017002501ND
2014-03-1914079003401ND
2014-09-10O142540019ND
2014-12-10O143440021ND
2015-01-0615008002909ND
2015-03-11O150710044ND
2015-06-10O151620002ND