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EWG's Tap Water Database — 2021 UPDATE

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Chloromethane

Epcor Water New Mexico Inc Clovis

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.

 

15

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013ND80ND
2014ND70ND
2015N/A00N/A
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
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
2013-09-1523381101ND
2013-09-1523382401ND
2013-09-1623382001ND
2013-09-1623382201ND
2013-09-1623382501ND
2013-09-1723382601ND
2013-09-1723382301ND
2013-09-1723382101ND
2014-03-1225104701ND
2014-03-1225103301ND
2014-03-1725104401ND
2014-03-1725104501ND
2014-06-2325104201ND
2014-06-2426423201ND
2014-06-2425104301ND