Know Your Environment. Protect Your Health.

Chloromethane

Fort Bend County Water Control and Improvement District 3

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.

 

12

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND20ND
2019ND20ND
2020ND20ND
2021ND20ND
2022ND20ND
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
2018-07-12AE33175ND
2018-07-12AE33179ND
2019-07-09AE73725ND
2019-07-09AE73727ND
2020-04-29AF08717ND
2020-07-28AF20896ND
2021-05-05AF52563ND
2021-05-05AF52567ND
2022-03-23AF90252ND
2022-03-23AF90254ND
2023-06-07AG43525ND
2023-06-07AG43529ND