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EWG's Tap Water Database — 2021 UPDATE

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Chloromethane

Searcy Waterworks

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
2013ND40ND
2014ND10ND
2015ND10ND
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
2013-03-11O130730001ND
2013-06-10O131640081ND
2013-09-11O132540006ND
2013-12-11O133450002ND
2014-02-1814051000501ND
2015-02-0915042001301ND
2016-02-0416036005001ND
2017-01-2517026001901ND
2018-02-2118053005101ND
2019-01-0719011004302ND