EPA's Study of Hydraulic Fracturing and Its Potential Impact on Drinking Water Resources

The Distribution of Natural Fractures Above a Gas Shale: Questions About Whether Deep Fracture Fluid Leaks into Groundwater Outside the Realm of Faulty Borehole Construction

Slides from presentation by Terry Engelder of the Appalachian Basin Black Shale Group on distribution of natural fractures above a gas shale.

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