Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

Chloromethane

City of White Settlement

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

 

40

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND160ND
2015ND70ND
2016ND50ND
2017ND50ND
2018ND40ND
2019ND30ND

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
2014-05-19Q1416752003ND
2014-05-19Q1416752011ND
2014-05-19Q1416752007ND
2014-05-19Q1416752005ND
2014-05-19Q1416752013ND
2014-05-19Q1416752009ND
2014-05-19Q1416752001ND
2014-05-19Q1416752015ND
2014-08-12Q1435369001ND
2014-11-18Q1456335005ND
2014-11-18Q1456335013ND
2014-11-18Q1456335011ND
2014-11-18Q1456335009ND
2014-11-18Q1456335001ND
2014-11-18Q1456335007ND
2014-11-18Q1456335003ND
2015-01-26Q1502775007ND
2015-01-26Q1502775011ND
2015-01-26Q1502775010ND
2015-01-26Q1502775006ND
2015-01-26Q1502775003ND
2015-01-26Q1502775001ND
2015-02-18Q1506445001ND
2016-01-25Q1603160005ND
2016-01-25Q1603160004ND
2016-01-25Q1603160001ND
2016-11-17Q1650436014ND
2016-11-17Q1650436011ND
2017-01-19Q1702494004ND
2017-01-19Q1702494002ND
2017-05-03Q1718317003ND
2017-05-03Q1718317001ND
2017-08-02Q1732337002ND
2018-06-18Q1824013006ND
2018-06-18Q1824013004ND
2018-07-16Q1827873002ND
2018-07-16Q1827873008ND
2019-01-31Q1904741011ND
2019-01-31Q1904741004ND
2019-05-20Q1926718001ND