Know Your Environment. Protect Your Health.

Chloromethane

Tahoe Keys Water Company

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.

 

7

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
2019N/A00N/A
2020N/A00N/A
2021N/A00N/A
2022ND50ND
2023ND20ND

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
2022-02-16CA0910015_001_001-202202161100ND
2022-02-16CA0910015_002_002-202202161200ND
2022-02-16CA0910015_003_003-202202161000ND
2022-06-07CA0910015_010_010-202206070925ND
2022-06-07CA0910015_002_002-202206070925ND
2023-11-14CA0910015_002_002-202311140915ND
2023-11-14CA0910015_007_007-202311140915ND