Know Your Environment. Protect Your Health.

Chloromethane

Terrell County Water Control and Improvement District 1

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
2018-08-22AE38149ND
2018-08-22AE38153ND
2019-05-09AE65705ND
2019-05-09AE65707ND
2020-09-17AF27757ND
2020-09-17AF27759ND
2021-07-20AF62667ND
2021-07-20AF62673ND
2022-05-19AF97762ND
2022-05-19AF97768ND
2023-09-20AG57080ND
2023-09-20AG57086ND