Know Your Environment. Protect Your Health.

Chloromethane

Hohenwald Water System

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.

 

19

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014N/A00N/A
2015N/A00N/A
2016N/A00N/A
2017N/A00N/A
2018ND40ND
2019ND20ND
2020N/A00N/A
2021ND20ND
2022ND50ND
2023ND60ND

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
2018-01-11ND
2018-03-27ND
2018-06-26ND
2018-10-18ND
2019-01-09ND
2019-07-10ND
2021-08-12ND
2021-12-15ND
2022-01-28ND
2022-01-28ND
2022-08-26ND
2022-08-26ND
2022-11-10ND
2023-02-09ND
2023-05-09ND
2023-08-08ND
2023-08-08ND
2023-08-21ND
2023-11-07ND