Below is a list of presentations the committee received during information gathering meetings. These were open to the public and included opportunities for public comment.

• U.S. Department of Energy, Office of Environmental Management (DOE-EM), study sponsor, Patrice Bubar, Associate Deputy Assistant Secretary for Integration and Disposition

• DOE-EM Corporate Project on Risk-Based End States, David Geiser, Director, Office of Long-Term Stewardship

• U.S. Environmental Protection Agency: Risk in EPA Regulations, Betsy Forinash, Office of Radiation

• HLW and TRU Issues at Hanford: How We Got Where We Are Today (videoconference), Roy Gephart, Pacific Northwest National Laboratory

• Tour of Idaho Nuclear Technology and Engineering Center and Radioactive Waste Management Complex

• Welcome to Idaho Falls and Idaho National Engineering and Environmental Laboratory (INEEL), Lisa Green, U.S. Department of Energy, Idaho Operations Office (DOE-ID)

• Overview of INEEL, Discussion of Types and Locations of INEEL Waste Streams, Keith Lockie, DOE-ID

• INEEL Risk-Based End State Project, Bill Leake, DOE-ID

• Overview of Waste Streams, Keith Lockie, DOE-ID

• Treatment and Disposal of SBW, Keith Lockie, DOE-ID; Arlin Olson, Lockheed Martin Idaho Technologies Company (LMITC); and Baird McNaught, Bechtel B&W Idaho, LLC (BBWI)

• Treatment and Disposal Options for Calcine HLW, Greg Duggan, DOE-ID

• Discussion of Risks, Costs, and Schedules for SBW, and Calcine Treatment, and Disposal, Richard Kimmel, DOE-ID

• HLW Tank Closure Planning, Keith Lockie, DOE-ID

• Origin of TRU Waste Located at INEEL, Jerry Wells, DOE-ID

• Buried Waste, Jeff Perry, DOE-ID

• Stored Remote Handled-TRU Waste, Tom Clements BBWI TRU Waste Management

• Stored Contact-Handled TRU Waste, Brian Edgerton, DOE-ID

• Regulatory Perspectives, Kathleen Trever, INEEL Oversight Board, Idaho Department of Environmental Quality and Rick Poeten, U.S. Environmental Protection Agency, Region 10

• Discussion of Environmental Management Corporate HLW Risk Reduction Project, Joel Case, DOE-ID, HLW Project Manager (by telephone)

• Tour of LLW Disposal Area, TRU Waste Area, F Tank Farm, H Tank Farm, Defense Waste Processing Facility, Glass Waste Storage Building, and Saltstone Facility

• Accelerating EM Cleanup at SRS, Doug Hintze, DOE Savannah River Operations Office (DOE-SR)

• Waste Disposition Program at SRS, Doug Hintze, DOE-SR

• Low Level Waste, Elmer Wilhite, Savannah River Technology Center (SRTC)

• Transuranic Waste, W.T. “Sonny” Goldston, Westinghouse Savannah River Company (WSRC)

• High-Level Waste, Joe Carter, WSRC

• Progress on the risk-based end-state vision, Tony Polk, DOE-SR

• Incorporating Risk in DOE’s Cleanup Decisions, Chuck Powers, Consortium for Risk Evaluation with Stakeholder Participation (CRESP II)

• Regulatory Issues Panel Discussion, David Wilson, South Carolina Department of Health and Environmental Control (SC-DHEC), Ben Rusche, South Carolina Governor Advisory Board, and Jon Richards, U.S. Environmental Protection Agency (EPA)

• Risk Considerations in Waste Incidental to Reprocessing (WIR) Determinations, David Esh and Anna Bradford, U.S. Nuclear Regulatory Commission

• Overview of Hanford, Keith Klein, Manager, Richland Operations Office (DOE-RL)

• Types of Risk at Hanford: Groundwater, Subsurface, Surface John Morse, Senior Technical Advisor for Groundwater, DOE-RL

• Impacts of Residual Radioactive Waste on Hanford Groundwater, Mike Thompson, Physical Scientist, Groundwater Project, DOE-RL

• How We Assess Risk System Assessment Capability, Composite Risk Modeling, Doug Hildebrand, Environmental Scientist, Waste Operations Team, DOE-RL, Charles Kincaid, Scientist Level Five, Pacific Northwest National Laboratory

• How We Use Risk in Decision Making (How does Hanford determine what lower hazard wastes to leave in place based on risk) John Morse, Senior Geotechnical Environmental Advisory, DOE-RL

• Looking at Risk to People and Natural Resources over the Long Term, Russell Jim, Confederated Tribes and Bands of the Yakama Nation

• Overview of Tank Waste Remediation, Steve Wiegman, Senior Technical Advisor, DOE, Office of River Protection (ORP)

• Discussion of Risk-Based End State (RBES) Strategies for the Hanford Tank Farms, Bob Popielarczyk, Director, and Tony Knepp, River Protection Project Integration, CH2M HILL Hanford Group, Inc.

• Hanford’s RBES Vision, Shirley Olinger, Assistant Manager for Safety and Engineering, DOE-RL

• Remarks from Entities with Consultation or Regulatory Status, Stuart Harris, Confederated Tribes of the Umatilla Indian Reservation; Gabriel Bohnee, Nez Perce Tribe; John Price and Suzanne Dahl, Washington State Department of Ecology; Nick Ceto, Hanford Project Manager, U.S. Environmental Protection Agency, Region 10; and Dirk Dunning, Nuclear Safety Division, Oregon Department of Energy

• Discussion of How Risk Factors into Planning for the U Plant Waste Sites, John Price and Suzanne Dahl, Washington State Department of Ecology; Nick Ceto, U.S. Environmental Protection Agency, Region 10; and Dirk Dunning, Oregon Department of Energy

• What Would Be Useful to DOE in the Committee’s Final Report?, Gene Schmitt, Department of Energy Office of Environmental Management (DOE-EM)

• Current Status and Understanding of Risk-Based End States Project, John Lehr, DOE-EM

• Risk in Decision Making for a Model Comprehensive Environmental Response Record of Decision, CERCLA ROD: MacKenzie Chemical Works Superfund Site in Central Islip, Suffolk County, New York, Charles Nace, U.S. Environmental Protection Agency Region 2

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