Know Your Environment. Protect Your Health.

Chloromethane

Stanwood Water Department City Of

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.

 

7

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2015ND40ND
2016N/A00N/A
2017N/A00N/A
2018ND10ND
2019N/A00N/A
2020N/A00N/A
2021ND10ND
2022ND10ND
2023N/A00N/A

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
2015-01-12WA97-SE1-15-00633-1529ND
2015-01-12WA97-SE1-15-00633-1528ND
2015-07-06WA97-SE2-15-13505-30232ND
2015-07-06WA97-SE2-15-13505-30233ND
2018-03-13ND
2021-09-204179049ND
2022-04-184272574ND