Know Your Environment. Protect Your Health.

Chloromethane

Camas Municipal Water Sewer System

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
2013ND70ND
2014ND10ND
2015N/A00N/A
2016N/A00N/A
2017N/A00N/A
2018ND40ND
2019ND20ND
2020N/A00N/A
2021N/A00N/A
2022ND10ND
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
2013-05-221029237001ND
2013-05-221029237005ND
2013-05-221029237003ND
2013-08-141043295001ND
2013-11-2013120150-01ND
2013-11-2013120150-02ND
2013-11-2013120150-03ND
2014-07-222019633003ND
2018-07-18ND
2018-08-02ND
2018-09-19ND
2018-10-15ND
2019-08-14ND
2019-10-15ND
2022-08-164364122ND
2023-03-234436871ND