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EWG's Tap Water Database — 2021 UPDATE

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Chloromethane

Hoke County Regional Water 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
2013ND160ND
2014N/A00N/A
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
2013-01-301304515-03ND
2013-01-301304515-04ND
2013-01-301304515-02ND
2013-01-301304515-01ND
2013-01-301304515-08ND
2013-01-301304515-06ND
2013-01-301304515-05ND
2013-01-301304515-07ND
2013-07-16201307190625AMND
2013-07-16201307190627AMND
2013-07-16201307190621AMND
2013-07-16201307190623AMND
2013-07-16201307190631AMND
2013-07-16201307190629AMND
2013-07-16201307190635AMND
2013-07-16201307190633AMND