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EWG's Tap Water Database — 2019 UPDATE

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Chloromethane

City of Corsicana

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.

 

20

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND20ND
2013ND20ND
2014ND100ND
2015ND20ND
2016ND20ND
2017ND20ND

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
2012-07-121207408001ND
2012-07-121207408003ND
2013-07-08Q1303383011ND
2013-07-08Q1303383010ND
2014-03-044C05004-04ND
2014-03-044C05004-01ND
2014-06-034F04044-01ND
2014-06-034F04044-04ND
2014-07-23Q1430464008ND
2014-07-23Q1430464005ND
2014-09-034I04031-01ND
2014-09-034I04031-04ND
2014-12-024L03007-04ND
2014-12-024L03007-01ND
2015-07-29Q1529448007ND
2015-07-29Q1529448006ND
2016-07-12Q1628094003ND
2016-07-12Q1628094002ND
2017-07-26Q1730737006ND
2017-07-26Q1730737002ND