Know Your Environment. Protect Your Health.

Chloromethane

Warden City Of

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.

 

13

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND30ND
2019ND20ND
2020N/A00N/A
2021ND20ND
2022ND30ND
20230.293 ppb31ND - 0.880 ppb

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
2018-04-10ND
2018-07-25ND
2018-10-31ND
2019-04-08ND
2019-06-11ND
2021-03-294100649ND
2021-06-024164639ND
2022-03-034254624ND
2022-03-034254624ND
2022-03-034254624ND
2023-04-114478121ND
2023-09-204524656ND
2023-10-2445393290.880 ppb