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EWG's Tap Water Database — 2019 UPDATE

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Chloromethane

City of Biloxi

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.

 

26

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012N/A00N/A
20130.0303 ppb131ND - 0.394 ppb
20140.0442 ppb131ND - 0.575 ppb
2015N/A00N/A
2016N/A00N/A
2017N/A00N/A

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
2013-10-21754020-10078ND
2013-10-21754003-100580.394 ppb
2013-10-21754018-10078ND
2013-10-21754022-10078ND
2013-10-21754016-10078ND
2013-10-21754009-10058ND
2013-10-21754007-10058ND
2013-10-21754026-10078ND
2013-10-21754005-10058ND
2013-10-21754024-10078ND
2013-10-21754030-10078ND
2013-10-21754001-10058ND
2013-11-13758659-10296ND
2014-04-22781908-11212ND
2014-04-22781962-11217ND
2014-04-22781940-11212ND
2014-04-22781912-11212ND
2014-04-22781968-11217ND
2014-04-22781932-112120.575 ppb
2014-04-22781910-11212ND
2014-04-22781960-11212ND
2014-04-22781930-11212ND
2014-04-22781934-11217ND
2014-04-22781970-11212ND
2014-04-22781966-11217ND
2014-05-05783994-11315ND