Hydraulic fracturing is a process that drills vertical and horizontal cracks underground that help withdraw gas, or oil, from coalbeds, shale and other geological formations. While each site is unique, in general, the process involves vertical and horizontal drilling, taking water from the ground, injecting fracturing fluids and sands into the formation, and withdrawing gas and separating and managing the leftover waters.

Hydraulic fracturing is emerging as an important technology in accessing natural gas. There are concerns that hydraulic fracturing may impact ground water and surface water quality in ways that threaten human health and the environment. To address these concerns and strengthen our clean energy future and in response to language inserted into the fiscal year 2010 Appropriations Act, EPA is re-allocating $1.9 million for this peer-reviewed study for FY10 and requesting funding for FY11 in the president’s budget proposal.

EPA is in the very early stages of designing a hydraulic fracturing research program. The agency is proposing the process begin with (1) defining research questions and identifying data gaps; (2) conducting a robust process for stakeholder input and research prioritization; (3) with this input, developing a detailed study design that will undergo external peer-review, leading to (4) implementing the planned research studies.

To support this initial planning phase and guide the development of the study plan, the agency is seeking suggestions and comments from the EPA Science Advisory Board (SAB)—an independent, external federal advisory committee. The agency has requested that the Environmental Engineering Committee (EEC) of the SAB evaluate and provide advice on EPA’s proposed approach. The agency will use this advice and extensive stakeholder input to guide the design of the study.