Know Your Environment. Protect Your Health.

Chloromethane

Great Basin Water Burbank

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.

 

11

Samples

0

Samples exceeding legal limit (MCL)

2

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
2019ND10ND
2020N/A00N/A
2021ND10ND
2022N/A00N/A
20231.58 ppb95ND - 4.11 ppb

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
2019-10-09ND
2021-11-104202783ND
2023-01-124513916ND
2023-01-1244431383.50 ppb
2023-01-3144077201.40 ppb
2023-08-294507756ND
2023-08-2945077574.11 ppb
2023-12-264573454ND
2023-12-2645734552.62 ppb
2023-12-2645734962.63 ppb
2023-12-264573498ND