Know Your Environment. Protect Your Health.

Chloromethane

Sequim City Of

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.

 

8

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND30ND
2015ND30ND
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
2019ND10ND
2020N/A00N/A
2021ND10ND
2022N/A00N/A
2023N/A00N/A

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

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
2014-12-15WA97-SE1-14-24415-55302ND
2014-12-15WA97-SE1-14-24415-55303ND
2014-12-15WA97-SE1-14-24415-55301ND
2015-06-02WA97-SE2-15-10852-24538ND
2015-06-02WA97-SE2-15-10852-24536ND
2015-06-02WA97-SE2-15-10852-24537ND
2019-06-12ND
2021-07-264157473ND