Know Your Environment. Protect Your Health.

Chloromethane

Cold Creek Studios

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
20180.867 ppb31ND - 2.60 ppb
2019N/A00N/A
2020N/A00N/A
20210.453 ppb42ND - 1.30 ppb
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
2018-03-30L1811254-02POCSND
2018-03-30L1811256-01POC2.60 ppb
2018-07-17EHS1800030882-01POCND
2021-04-01L2116770-010.510 ppb
2021-04-01L2116770-021.30 ppb
2021-04-26L2121342-02ND
2021-04-26L2121342-01ND