Know Your Environment. Protect Your Health.

Chloromethane

Naval Air Station/whidbey Island

NOTE: Naval Air Station/whidbey Island purchases water from City of Oak Harbor which is required to test for chloromethane. Sample information shown below was taken by City of Oak Harbor.

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
2014ND40ND
2015N/A00N/A
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
2019ND10ND
2020N/A00N/A
2021ND20ND
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

NOTE: Naval Air Station/whidbey Island purchases water from City of Oak Harbor which is required to test for chloromethane. Sample information shown below was taken by City of Oak Harbor.

Date Lab ID Result
2013-07-09WA97-SE1-13-12106-27485ND
2013-10-08WA97-SE2-13-19311-43866ND
2014-04-10WA97-SE4-14-06305-15290ND
2014-12-30WA97-SE3-14-25259-57336ND
2019-04-23ND
2021-04-224106993ND
2021-04-224106994ND