Brian A. Schumacher and Lawrence Zintek. EPA Report. July 2014
Glycols are organic compounds used as solvents and found in many products including antifreeze, hydraulic brake fluids, and cosmetics. Glycols have also been reported as a component of hydraulic fracturing fluids. Because glycols can be an indicator of the presence of hydraulic fracturing fluid, the EPA has verified an analytical method for detecting these compounds in samples taken from drinking water, surface water, and ground water. This work was done as part of EPA’s study of the potential impact of hydraulic fracturing for oil and gas on drinking water resources.You may need Adobe Reader to view files on this page. See EPA’s About PDF page to learn more.