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EWG's Tap Water Database — 2021 UPDATE

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Chloromethane

Cherokee County

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.

 

10

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND10ND
2015ND50ND
2016ND10ND
2017ND10ND
2018ND10ND
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
2014-02-21AI28438ND
2015-01-14839198-13243ND
2015-02-06AI64376ND
2015-04-08853092-13851ND
2015-07-06869134-14455ND
2015-10-12888489-15187ND
2016-02-02AJ05429ND
2017-05-04AJ54716ND
2018-02-05AJ83020ND
2019-02-22AK11877ND