Know Your Environment. Protect Your Health.

Chloromethane

Covington Water 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.

 

11

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2015ND80ND
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
2019ND10ND
2020N/A00N/A
2021N/A00N/A
2022ND20ND
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
2015-02-25B5B2520-01ND
2015-05-27B5E2710-01ND
2015-05-27B5E2709-01ND
2015-07-29B5G3153-01ND
2015-07-29B5G3151-01ND
2015-07-29B5G3151-03ND
2015-11-18B5K1952-01ND
2015-11-18B5K1937-01ND
2019-07-29ND
2022-06-144298836ND
2022-10-254382877ND