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EWG's Tap Water Database — 2019 UPDATE

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Chloromethane

Brattleboro Water Department

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.

 

18

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND20ND
2013ND20ND
2014ND50ND
2015ND50ND
2016ND20ND
2017ND20ND

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
2012-02-141202048-01ND
2012-02-141202047-01ND
2013-03-051303025-01ND
2013-03-051303025-06ND
2014-02-111402-02568-002ND
2014-02-111402-02568-001ND
2014-09-1714090780-01ND
2014-09-1714090780-02ND
2014-12-1614120477ND
2015-02-101502-02507-001ND
2015-02-101502-02507-002ND
2015-03-1715030483-01ND
2015-03-1715030484-01ND
2015-06-245062983-01ND
2016-02-231602-03529-002ND
2016-02-231602-03529-001ND
2017-02-281702-04140-002ND
2017-02-281702-04140-001ND