Know Your Environment. Protect Your Health.

Chloromethane

City of Spokane

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.

 

30

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2015ND100ND
2016N/A00N/A
2017N/A00N/A
2018ND30ND
2019ND100ND
2020N/A00N/A
2021ND30ND
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
2015-03-23150324054-002ND
2015-03-23150324054-003ND
2015-03-23150324054-001ND
2015-03-23150324054-005ND
2015-03-23150324054-004ND
2015-09-28150930003-008ND
2015-09-28150930003-006ND
2015-09-28150930003-007ND
2015-09-28150930003-009ND
2015-09-28150930003-010ND
2018-01-30ND
2018-01-30ND
2018-07-17ND
2019-07-23ND
2019-07-23ND
2019-07-26ND
2019-07-26ND
2019-07-26ND
2019-07-26ND
2019-07-26ND
2019-07-26ND
2019-07-26ND
2019-07-26ND
2021-01-264066969ND
2021-01-264066970ND
2021-07-274195356ND
2022-07-264319393ND
2022-07-264319391ND
2023-01-244399432ND
2023-07-254507772ND