Know Your Environment. Protect Your Health.

Chloromethane

Birch Hill Water

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
2018ND30ND
2019N/A00N/A
2020N/A00N/A
2021ND70ND
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
2018-11-09S034601-05ND
2018-11-09S034601-01ND
2018-11-09S034601-03ND
2021-02-15420-191091-1FND
2021-04-20420-195556-5ND
2021-04-20420-195556-1ND
2021-04-20420-195556-3ND
2021-07-26420-202811-1FND
2021-07-30420-203208-1FND
2021-09-01420-205602-1FND