Know Your Environment. Protect Your Health.

Chloromethane

Triple R Mutual Water Company

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.

 

7

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
2019N/A00N/A
2020N/A00N/A
2021ND10ND
2022ND60ND
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 Lab ID Result
2021-03-13CA5400670_011_011-202103131200ND
2022-03-27CA5400670_011_011-202203271455ND
2022-06-24CA5400670_009_009-202206241305ND
2022-12-28CA5400670_006_006-202212281030ND
2022-12-28CA5400670_007_007-202212281115ND
2022-12-28CA5400670_008_008-202212281100ND
2022-12-28CA5400670_001_001-202212281000ND