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EWG's Tap Water Database — 2021 UPDATE

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Chloromethane

Woodville

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.

 

12

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND10ND
2015N/A00N/A
2016ND30ND
2017ND40ND
2018ND30ND
2019ND10ND

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
2014-03-24AI36602ND
2016-06-13AJ14058ND
2016-08-02AJ20721ND
2016-10-11AJ31208ND
2017-01-31AJ43772ND
2017-04-17AJ53384ND
2017-07-24AJ61527ND
2017-10-23AJ72198ND
2018-01-09AJ76343ND
2018-04-09AJ87024ND
2018-07-16AJ94369ND
2019-05-15AK17599ND