Know Your Environment. Protect Your Health.

Chloromethane

Jblm Mcchord Field

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.

 

16

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014N/A00N/A
2015N/A00N/A
2016N/A00N/A
2017N/A00N/A
2018ND20ND
2019ND10ND
2020N/A00N/A
2021ND50ND
2022ND20ND
2023ND60ND

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
2018-08-14ND
2018-08-14ND
2019-07-31ND
2021-04-074213550ND
2021-04-074213549ND
2021-11-174207231ND
2021-11-194207599ND
2021-11-194207598ND
2022-04-064274425ND
2022-09-284370669ND
2023-04-134441715ND
2023-05-034452074ND
2023-06-144470352ND
2023-06-144470351ND
2023-06-154470350ND
2023-09-064514768ND