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EWG's Tap Water Database — 2021 UPDATE

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Chloromethane

Callaway 2 Water District

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.

MORE ABOUT THIS CONTAMINANT

 

32

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013ND160ND
2014N/A00N/A
2015ND80ND
2016N/A00N/A
2017N/A00N/A
2018ND80ND
2019N/A00N/A

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
2013-03-253587887011AMND
2013-03-253587887005AMND
2013-03-253587887007AMND
2013-03-253587887001AMND
2013-03-253587887003AMND
2013-03-253587887013AMND
2013-03-253587887015AMND
2013-03-253587887009AMND
2013-09-1635108748005AMND
2013-09-1635108748007AMND
2013-09-1635108748001AMND
2013-09-1635108748003AMND
2013-09-1635108748009AMND
2013-09-1635108748015AMND
2013-09-1635108748013AMND
2013-09-3035110476001AMND
2015-03-09AC42763ND
2015-03-09AC42767ND
2015-03-09AC42761ND
2015-03-09AC42760ND
2015-03-09AC42762ND
2015-03-09AC42764ND
2015-03-09AC42765ND
2015-03-09AC42766ND
2018-06-04AD19154ND
2018-06-04AD19157ND
2018-06-04AD19158ND
2018-06-04AD19155ND
2018-06-04AD19156ND
2018-06-04AD19152ND
2018-06-04AD19151ND
2018-06-04AD19153ND