Know Your Environment. Protect Your Health.

Chloromethane

Travis County Municipal Utility District 4

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
2018-02-15AE14083ND
2018-08-13AE36646ND
2019-02-14AE54602ND
2019-08-20AE79613ND
2020-03-03AF00898ND
2020-07-23AF20338ND
2021-01-25AF40768ND
2021-07-07AF60990ND
2022-02-10AF84277ND
2022-08-17AG09728ND
2023-02-14AG28837ND
2023-07-18AG49052ND