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EWG's Tap Water Database — 2021 UPDATE

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Chloromethane

North Lenoir Water Corp

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.

MORE ABOUT THIS CONTAMINANT

 

30

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND290ND
2015ND10ND
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
2014-05-14201405150175AMND
2014-05-14201405150487AMND
2014-05-14201405150179AMND
2014-05-14201405150177AMND
2014-05-14201405150190AMND
2014-05-15201405160311AMND
2014-05-15201405160359AMND
2014-05-15201405160365AMND
2014-05-15201405160367AMND
2014-05-19201405200223AMND
2014-05-19201405200269AMND
2014-05-19201405200233AMND
2014-05-19201405200235AMND
2014-05-20201405210538AMND
2014-08-28201408300380AMND
2014-11-03201411040479AMND
2014-11-03201411040528AMND
2014-11-03201411040450AMND
2014-11-03201411040477AMND
2014-11-03201411040221AMND
2014-11-03201411040229AMND
2014-11-03201411040198AMND
2014-11-04201411050308AMND
2014-11-04201411050453AMND
2014-11-04201411050399AMND
2014-11-04201411050447AMND
2014-11-04201411050544AMND
2014-11-04201411050548AMND
2014-11-04201411050478AMND
2015-01-29201501300220AMND