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

QAPP for the Evaluation of Information on Hydraulic Fracturing (ERG)

This QAPP describes the technical details and associated quality assurance and quality control procedures for the service company analysis research project.

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QAPP for the Evaluation of Information on Hydraulic Fracturing (ERG), Revised April 2, 2013 (PDF)(46 pp, 296 K)