Know Your Environment. Protect Your Health.

Chloromethane

Denton County Fresh Water Supply District 8-c

NOTE: Denton County Fresh Water Supply District 8-c purchases water from Town of Little Elm which is required to test for chloromethane. Sample information shown below was taken by Town of Little Elm.

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.

 

3

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

NOTE: Denton County Fresh Water Supply District 8-c purchases water from Town of Little Elm which is required to test for chloromethane. Sample information shown below was taken by Town of Little Elm.

Date Lab ID Result
2014-09-15Q1444034001ND
2014-12-02Q1457899001ND
2015-03-17Q1509749001ND