Know Your Environment. Protect Your Health.

Chloromethane

South Blount Utility 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.

 

19

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND10ND
2015ND30ND
2016N/A00N/A
2017N/A00N/A
2018ND50ND
2019ND40ND
2020N/A00N/A
2021ND10ND
2022ND20ND
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
2014-12-08ND
2015-03-09ND
2015-06-08ND
2015-09-10ND
2018-01-22ND
2018-04-03ND
2018-07-26ND
2018-10-10ND
2018-10-10ND
2019-01-09ND
2019-04-30ND
2019-07-15ND
2019-10-15ND
2021-01-14ND
2022-01-13ND
2022-01-13ND
2023-01-12ND
2023-01-12ND
2023-01-12ND