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EWG's Tap Water Database — 2021 UPDATE

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Chloromethane

Balsam Crest Homeowners Association

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.

 

12

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND20ND
2015ND20ND
2016ND20ND
2017ND20ND
2018ND20ND
2019ND20ND

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
2014-10-29JH1407706POCSND
2014-10-29JH1407707POCSND
2015-06-23JH1503881POCSND
2015-06-23JH1503882POCSND
2016-06-27JH1605289-POCSND
2016-06-27H1605290-POCSND
2017-10-24JH1708685-POCSND
2017-10-241708686-POCSND
2018-11-26JH1809304-POCSND
2018-11-26JH1809305-POCSND
2019-10-08JH1907474-POCSND
2019-10-08JH1907475-POCSND