Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

Chloromethane

Greenville Utilities Comm.

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.

 

18

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND70ND
2015ND110ND
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
2014-11-04201411050555AMND
2014-11-04201411050526AMND
2014-11-04201411050238AMND
2014-11-04201411050288AMND
2014-11-04201411050552AMND
2014-11-04201411050559AMND
2014-11-04201411050472AMND
2015-02-05201502060220AMND
2015-02-05201502060269AMND
2015-05-12201505130207AMND
2015-05-12201505130205AMND
2015-05-12201505130226AMND
2015-05-12201505130222AMND
2015-05-12201505130199AMND
2015-05-14201505150392AMND
2015-05-14201505150394AMND
2015-08-25201508260563AMND
2015-08-25201508260573AMND