Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

Chloromethane

Central Arkansas Water

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
2014ND20ND
2015ND80ND
2016ND20ND
2017ND20ND
2018ND20ND
2019ND20ND

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
2014-01-2914030009201ND
2014-07-0314184014401ND
2015-02-11O150430023ND
2015-02-11O150430024ND
2015-03-1015070000601ND
2015-05-13O151340029ND
2015-05-13O151340028ND
2015-07-0615190001109ND
2015-08-12O152250087ND
2015-08-12O152250088ND
2016-02-0116036001502ND
2016-07-0516189013301ND
2017-02-0117033011101ND
2017-07-0317187007301ND
2018-01-0218004008901ND
2018-07-0318186010409ND
2019-01-0719010010201ND
2019-09-0919254006001ND