Know Your Environment. Protect Your Health.

Chloromethane

Desert Water Supply Corporation

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.

 

12

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND20ND
2019ND20ND
2020ND20ND
2021ND20ND
2022ND20ND
2023ND20ND

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
2018-04-19Q1816226010ND
2018-04-19Q1816226014ND
2019-05-14Q1924857002ND
2019-05-14Q1924857004ND
2020-06-30Q2025933001ND
2020-06-30Q2025933003ND
2021-09-21Q2125878005ND
2021-09-21Q2125878015ND
2022-05-10Q2213913001ND
2022-05-10Q2213913004ND
2023-09-19Q2340246001ND
2023-09-19Q2340246003ND