The federal Environmental Protection Agency (EPA) is conduction a multi-year study of the natural gas extraction method called hydraulic fracturing. See MDN’s coverage of the initial announcement and draft release of the study plan here. Preliminary results of the study are due in 2012, but the final results are not due until 2014.

Yesterday, the EPA announced where it will conduct its case studies. Nearly half of the sites—three of the seven—are in the Pennsylvania Marcellus Shale region in Bradford, Susquehanna and Washington Counties. Below is the full press release from the EPA announcing the locations, followed by a table from the EPA website charting the key issues to be investigated and the potential outcomes for the retrospective case studies.

Read More “EPA Announces Locations for Case Studies in Multi-Year Hydraulic Fracturing Study – PA Marcellus Shale Figures Prominently”