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EWG's Tap Water Database — 2021 UPDATE

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Chloromethane

Serenity Woods Subdivision

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
2014N/A00N/A
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
2015-10-14AD10633ND
2015-10-14AD10635ND
2016-01-26AD20082ND
2016-01-26AD20092ND
2017-09-21AD97393ND
2017-09-21AD97399ND
2018-06-18AE30220ND
2018-06-18AE30224ND
2019-07-09AE73701ND
2019-07-09AE73697ND