Know Your Environment. Protect Your Health.

Chloromethane

Mount Houston Road Municipal Utility District

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
2018-06-18AE30242ND
2018-06-18AE30246ND
2019-07-15AE74415ND
2019-07-15AE74417ND
2020-07-09AF18907ND
2020-07-09AF18911ND
2021-06-14AF57828ND
2021-06-14AF57830ND
2022-05-05AF95728ND
2022-05-05AF95730ND
2023-06-01AG42806ND
2023-11-09AG63063ND