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EWG's Tap Water Database — 2021 UPDATE

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Chloromethane

Breezy Hill WD

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.

MORE ABOUT THIS CONTAMINANT

 

58

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013ND140ND
2014ND70ND
2015ND110ND
2016ND110ND
2017ND50ND
2018ND50ND
2019ND50ND

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
2013-01-23201301250327AMND
2013-01-23201301250238AMND
2013-01-23201301250236AMND
2013-01-23201301250247AMND
2013-01-23201301250245AMND
2013-04-08201304100489AMND
2013-04-08201304100483AMND
2013-07-15201307170571AMND
2013-07-15201307170617AMND
2013-07-15201307170573AMND
2013-07-15201307170621AMND
2013-07-15201307170623AMND
2013-10-14201310160267AMND
2013-10-14201310160161AMND
2014-01-08AD34143ND
2014-01-08AD34134ND
2014-04-08AD38161ND
2014-04-08AD38188ND
2014-08-13AD43964ND
2014-08-13AD43987ND
2014-10-22AD47078ND
2015-02-11AD51431ND
2015-02-11AD51432ND
2015-02-11AD51435ND
2015-02-11AD51437ND
2015-02-11AD51439ND
2015-04-08AD53968ND
2015-07-15AD58302ND
2015-07-15AD58288ND
2015-07-15AD58291ND
2015-07-15AD58294ND
2015-11-03AD64929ND
2016-02-03AD70125ND
2016-04-06AD73811ND
2016-04-06AD73817ND
2016-04-06AD73813ND
2016-04-06AD73818ND
2016-04-06AD73814ND
2016-04-06AD73815ND
2016-04-06AD73816ND
2016-09-27AD83034ND
2016-10-26AD84691ND
2016-12-08AD86916ND
2017-03-08AD90840ND
2017-03-08AD90883ND
2017-04-05AD92222ND
2017-07-05AD96785ND
2017-10-24AE02469ND
2018-02-28AE08415ND
2018-03-06AE08892ND
2018-04-04AE10340ND
2018-07-11AE14848ND
2018-10-23AE20312ND
2019-01-09AE23798ND
2019-01-09AE23835ND
2019-06-05AE31433ND
2019-07-10AE33378ND
2019-10-02AE38157ND