Know Your Environment. Protect Your Health.

Chloromethane

City of Bridge City

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)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND20ND
2019ND10ND
2020ND20ND
2021ND30ND
2022ND10ND
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
2018-02-21AE15081ND
2018-08-09AE36378ND
2019-01-24AE51297ND
2020-02-03AE96559ND
2020-02-03AE96565ND
2021-02-24AF44219ND
2021-04-22AF51142ND
2021-08-18AF66902ND
2022-01-26AF81952ND
2023-02-21AG29685ND
2023-02-21AG29689ND