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EWG's Tap Water Database — 2021 UPDATE

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Chloromethane

Fouke Water Supply Corporation

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
2014ND10ND
2015ND60ND
2016ND30ND
2017ND30ND
2018ND30ND
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
2014-01-21Q1401598003ND
2015-05-05Q1516360002ND
2015-05-05Q1516360029ND
2015-05-05Q1516360026ND
2015-05-05Q1516360031ND
2015-09-11Q1535528002ND
2015-11-02Q1542864001ND
2016-10-05Q1642099002ND
2016-10-05Q1642099006ND
2016-10-05Q1642099004ND
2017-03-30Q1713361018ND
2017-03-30Q1713361002ND
2017-03-30Q1713361016ND
2018-05-16Q1819991006ND
2018-05-16Q1819991003ND
2018-05-16Q1819991001ND
2019-06-06Q1932560014ND
2019-06-06Q1932560012ND
2019-06-06Q1932560016ND