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

QAPP for Hydraulic Fracturing Retrospective Case Study, Bakken Shale, Killdeer and Dunn County, ND (GWERD)

This QAPP describes the technical details and associated quality assurance and quality control procedures for the Dunn County, North Dakota, Bakken Shale case study.

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QAPP for Hydraulic Fracturing Retrospective Case Study, Bakken Shale, Killdeer and Dunn County, ND, Revised September 11, 2013 (PDF)(122 pp, 4 MB)