Know Your Environment. Protect Your Health.

Chloromethane

Crossville Water Department

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.

 

18

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013ND40ND
2014ND40ND
2015N/A00N/A
2016N/A00N/A
2017N/A00N/A
2018ND20ND
2019ND20ND
2020ND20ND
2021ND20ND
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 Result
2013-08-20ND
2013-08-20ND
2013-11-19ND
2013-11-19ND
2014-02-19ND
2014-02-19ND
2014-05-19ND
2014-05-19ND
2018-02-20ND
2018-02-20ND
2019-02-19ND
2019-02-19ND
2020-02-18ND
2020-02-18ND
2021-02-17ND
2021-02-17ND
2022-03-15ND
2022-03-15ND