Know Your Environment. Protect Your Health.

Chloromethane

South Murvaul Water Supply Corporation

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
20180.500 ppb110.500 ppb
20190.650 ppb110.650 ppb
2020ND10ND
2021ND10ND
2022ND10ND
2023ND30ND

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
2018-11-06Q18444010020.500 ppb
2019-09-30Q19699380050.650 ppb
2020-12-02Q2048004001ND
2021-10-11Q2128059003ND
2022-09-13Q2227122003ND
2023-06-20Q2323548001ND
2023-08-24Q2336202001ND
2023-11-10Q2348390001ND