Know Your Environment. Protect Your Health.

Chloromethane

Water Authority of Dickson County

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.

 

33

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013ND60ND
2014ND60ND
2015N/A00N/A
2016N/A00N/A
2017N/A00N/A
2018ND30ND
2019ND30ND
2020ND30ND
2021ND30ND
2022ND60ND
2023ND30ND

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
2013-08-20ND
2013-11-19ND
2013-11-19ND
2013-11-19ND
2014-02-18ND
2014-02-18ND
2014-02-18ND
2014-05-20ND
2014-05-20ND
2014-05-20ND
2018-03-07ND
2018-03-07ND
2018-03-07ND
2019-04-03ND
2019-04-03ND
2019-04-03ND
2020-02-04ND
2020-02-04ND
2020-02-05ND
2021-03-03ND
2021-04-07ND
2021-04-07ND
2022-02-09ND
2022-02-09ND
2022-02-09ND
2022-02-09ND
2022-02-09ND
2022-02-09ND
2023-04-12ND
2023-04-12ND
2023-04-12ND