Know Your Environment. Protect Your Health.

Chloromethane

City of Goldthwaite

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
2018ND10ND
2019ND20ND
2020ND40ND
2021ND20ND
2022ND20ND
2023ND10ND

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
2018-01-18AE09291ND
2019-02-28AE56600ND
2019-11-20AE89966ND
2020-01-16AE93972ND
2020-01-16AE93974ND
2020-05-04AF09149ND
2020-07-07AF18228ND
2021-03-01AF44650ND
2021-04-12AF49813ND
2022-01-27AF82252ND
2022-04-14AF93358ND
2023-01-11AG24071ND