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EWG's Tap Water Database — 2019 UPDATE

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Chloromethane

City of Lexington

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.

 

41

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND60ND
2013ND40ND
2014ND210ND
2015ND40ND
2016ND40ND
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
2012-03-05153190ND
2012-03-05153191ND
2012-03-05153193ND
2012-03-05153194ND
2012-09-10186523ND
2012-09-10186524ND
2013-03-04215263ND
2013-03-04215265ND
2013-03-04215264ND
2013-03-04215262ND
2014-05-054E06007-07ND
2014-05-054E06007-01ND
2014-05-054E06007-04ND
2014-05-054E06007-13ND
2014-05-054E06007-10ND
2014-05-064E07020-04AND
2014-05-064E07020-13AND
2014-05-064E07020-01AND
2014-05-064E07020-25AND
2014-05-064E07020-10AND
2014-05-064E07020-31AND
2014-10-064J07088-16ND
2014-10-064J07088-25ND
2014-10-064J07088-04ND
2014-10-064J07088-10ND
2014-10-064J07088-13ND
2014-10-064J07088-01ND
2014-10-064J07088-07ND
2014-10-064J07088-22ND
2014-10-064J07088-19ND
2014-11-17328698ND
2015-02-17343423ND
2015-02-17343424ND
2015-03-09345991ND
2015-03-09345992ND
2016-03-07ND
2016-03-07ND
2016-03-07ND
2016-03-07ND
2017-10-24ND
2017-10-24ND