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

QAPP for Hydraulic Fracturing (HF) Surface Spills Data Analysis

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

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QAPP for Hydraulic Fracturing (HF) Surface Spills Data Analysis, Revised September 9, 2013 (PDF)(10 pp, 246 K)