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

QAPP for Hydraulic Fracturing Retrospective Case Study, Bradford-Susquehanna Counties, PA (GWERD)

This QAPP describes the technical details and associated quality assurance and quality control procedures for the Bradford County, Pennsylvania, Marcellus Shale case study.

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QAPP for Hydraulic Fracturing Retrospective Case Study, Bradford-Susquehanna Counties, PA, Revised October 24, 2013 (PDF)(102 pp, 2 MB)