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EWG's Tap Water Database — 2021 UPDATE

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Chloromethane

North Kona

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.

 

14

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND140ND
2015N/A00N/A
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
2019N/A00N/A

ppb = parts per billion

State and national drinking water standards and health guidelines

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
2014-06-23201406250173AMND
2014-06-23201406250388AMND
2014-06-23201406250162AMND
2014-06-23201406250170AMND
2014-06-23201406250168AMND
2014-06-23201406250158AMND
2014-06-23201406250186AMND
2014-06-23201406250177AMND
2014-12-15201412170478AMND
2014-12-15201412170548AMND
2014-12-15201412170474AMND
2014-12-15201412170385AMND
2014-12-15201412170519AMND
2014-12-15201412170781AMND