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EWG's Tap Water Database — 2021 UPDATE

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Chloromethane

Gainesville

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.

 

20

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND20ND
2015ND100ND
2016ND20ND
2017ND20ND
2018ND20ND
2019ND20ND

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
2014-03-18AI36419ND
2014-03-18AI36418ND
2015-01-133169429ND
2015-01-133169418ND
2015-03-03AI66011ND
2015-03-03AI66010ND
2015-04-213228937ND
2015-04-213228926ND
2015-07-153280290ND
2015-07-293290000ND
2015-10-143341583ND
2015-10-273348243ND
2016-03-15AJ08274ND
2016-03-15AJ08273ND
2017-05-23AJ56043ND
2017-05-23AJ56042ND
2018-03-27AJ86535ND
2018-03-27AJ86534ND
2019-04-23AK15729ND
2019-04-23AK15728ND