Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

Chloromethane

Blevins Waterworks

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.

 

27

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND10ND
2015ND10ND
2016ND40ND
2017ND70ND
2018ND80ND
2019ND60ND

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
2014-04-2814120000209ND
2015-10-2015296000701ND
2016-01-2616028001402ND
2016-06-0116154000701ND
2016-07-2016203006001ND
2016-10-2516301001701ND
2017-01-2317025000201ND
2017-05-0917130008101ND
2017-05-0917130007901ND
2017-07-1817200003801ND
2017-07-1817200003701ND
2017-11-0117306002701ND
2017-11-0117306002601ND
2018-02-1918053002402ND
2018-02-1918053004401ND
2018-04-2418115002501ND
2018-04-2418115002601ND
2018-08-0118214001101ND
2018-08-2818242000701ND
2018-12-0318340005201ND
2018-12-0318340005301ND
2019-02-0619038004002ND
2019-02-0619038003901ND
2019-08-0519220003108ND
2019-08-0519220003008ND
2019-10-2919304001401ND
2019-10-2919304001301ND