Know Your Environment. Protect Your Health.

Chloromethane

City of Bremerton

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.

 

24

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013ND40ND
2014ND40ND
2015N/A00N/A
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
2019ND130ND
2020N/A00N/A
2021ND30ND
2022N/A00N/A
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
2013-09-04WA97-13-16667-37739ND
2013-09-04WA97-SE1-13-16667-37743ND
2013-09-04WA97-13-16667-37741ND
2013-12-04WA97-SE2-13-22910-52472ND
2014-03-04WA97-SE3-14-03841-9583ND
2014-03-04WA97-SE3-14-03841-9584ND
2014-03-04WA97-SE3-14-03841-9585ND
2014-06-03WA97-SE1-14-10137-24377ND
2019-04-29ND
2019-04-29ND
2019-04-29ND
2019-04-29ND
2019-04-30ND
2019-06-05ND
2019-06-05ND
2019-06-05ND
2019-06-05ND
2019-06-05ND
2019-07-30ND
2019-07-30ND
2019-07-30ND
2021-04-204106992ND
2021-04-204106990ND
2021-04-204106991ND