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EWG's Tap Water Database — 2021 UPDATE

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Chloromethane

City of Euless

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.

 

19

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013ND50ND
2014ND40ND
2015ND30ND
2016ND20ND
2017ND10ND
2018ND30ND
2019ND10ND

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
2013-09-30Q1308390007ND
2013-09-30Q1308390005ND
2013-09-30Q1308390003ND
2013-09-30Q1308390001ND
2013-12-18Q1318404005ND
2014-03-27Q1409925005ND
2014-03-27Q1409925001ND
2014-03-27Q1409925003ND
2014-06-25Q1423623003ND
2015-01-22Q1502292013ND
2015-01-22Q1502292012ND
2015-01-22Q1502292010ND
2016-01-07Q1600503011ND
2016-04-05Q1613371001ND
2017-01-03Q1700129018ND
2018-01-03Q1800229012ND
2018-06-14Q1823826007ND
2018-06-14Q1823826005ND
2019-07-17Q1945485001ND