Know Your Environment. Protect Your Health.

Chloromethane

White River Municipal Water 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.

 

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
2018-04-24Q1816513004ND
2018-07-17Q1828234002ND
2019-05-01Q1917590004ND
2019-08-06Q1951422001ND
2020-09-15Q2036516006ND
2020-09-15Q2036516008ND
2021-08-11Q2121422005ND
2021-08-11Q2121422007ND
2022-06-02Q2215628001ND
2022-09-06Q2226331001ND
2023-08-17Q2334682003ND
2023-08-17Q2334682005ND