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EWG's Tap Water Database — 2019 UPDATE

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Chloromethane

City of Wichita Falls

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
2012ND20ND
2013ND20ND
2014ND70ND
2015ND40ND
2016ND10ND
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
2012-09-121209458004ND
2012-09-121209458002ND
2013-09-25Q1308144010ND
2013-09-25Q1308144012ND
2014-03-313000250ND
2014-08-14Q1436796006ND
2014-08-14Q1436796018ND
2014-09-083099460ND
2014-11-12AC71850ND
2014-11-173140623ND
2014-12-083151423ND
2015-02-09Q1505019002ND
2015-03-243213444ND
2015-05-11Q1517193009ND
2015-09-22Q1537019019ND
2016-08-02Q1631878001ND
2017-03-06Q1709227002ND
2017-08-07Q1733093005ND