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EWG's Tap Water Database — 2021 UPDATE

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Chloromethane

US Army Fort Huachuca

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
2014ND70ND
2015ND50ND
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
2014-05-213032604ND
2014-05-213032591ND
2014-05-213032412ND
2014-05-213032402ND
2014-11-253145695ND
2014-11-253145704ND
2014-11-253145722ND
2015-06-243269645ND
2015-06-243269654ND
2015-11-103357234ND
2015-12-093372900ND
2015-12-093372883ND