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Key Decisions on Waste Disposition and OSDC Siting: Progress and Community Engagement

This presentation by Marc Jewett focuses on the ongoing discussions regarding the potential siting of an On-Site Disposal Cell (OSDC) part of the cleanup process at the site. The SSAB's input is crucial for decisions on land use post-cleanup, waste disposition, and final cleanup levels for water and soil. The analysis highlights the preferred locations for the OSDC based on previous siting studies and outlines the critical factors influencing these decisions, including environmental protectiveness, compliance, and stakeholder values.

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Key Decisions on Waste Disposition and OSDC Siting: Progress and Community Engagement

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Presentation Transcript

  1. Setting the Course for Cleanup Key Decision: Waste Disposition Siting of a Potential On-Site Disposal Cell (OSDC) Marc Jewett, Manager, Regulatory Planning and Implementation September 1, 2011

  2. Where We Are Now • Fluor-B&W appreciated the SSAB’s invitation to attend the Executive Planning Session. • The SSAB’s work this year will help drive decisions that will prepare this site to meet the community’s future needs. • Today we will work to put yet another decision piece in place to D&D the site and meet that future need.

  3. The Key Decisions • Land use after cleanup. • SSAB input requested by December 2011. • Process Building D&D. • SSAB input requested by December 2011 • Final cleanup levels for water and soil. • SSAB input requested by December 2011 and March 2012. • Waste Disposition. • SSAB input requested by October 2011 and March 2012 .

  4. Participants in Key Decisions Ohio EPA Considers DOE’s proposed solutions, approves end use decisions Post Cleanup Land Use US DOE Proposes solutions, evaluates input, and implements decisions 4 4

  5. Today’s Key Decision: OSDC Siting • Requested input from SSAB by October board meeting: • If an OSDC were to be built, what is the SSAB’s preferred location(s)? • Which location(s) would not be acceptable?

  6. Key Decision: Waste Disposition OSDC SITING EFFORT TO DATE

  7. Previous Siting Studies • The entire site has been evaluated. • Study areas were about 150 acres each. • The ID numbers are in no particular order.

  8. Current Waste Disposition RI/FS After reviewing the results of the previous siting studies, four study areas are being considered in the Waste Disposition RI/FS Study: Site D • Site A – Air Strip/Hillside • Site B – Switch Yard • Site C – Hilltop (Southeastern) • Site D – Hilltop (Northeastern) Site C Site B Site A

  9. Decision Analysis –Preliminary Technical Ranking Site C N Site D

  10. Key Decision: Waste Disposition SUPPORTING INFORMATION OF THE RANKING

  11. Consider SSAB Recommendations(those relevant to OSDC siting are highlighted)

  12. Decision Analysis – Accommodationof SSAB Recommendations SSAB Recommendation 11-01

  13. Decision Analysis – Factors Considered • Satisfy Critical Requirements: • Full regulatory compliance • Better long term protectiveness of environment • Meet stakeholder values and priorities • Achieve Operational Objectives: • Right timing (i.e., 2013) • Higher waste acceptance criteria • Efficient transportation route • Sufficient capacity (i.e., 5 M cubic yards) Meet Criteria • Potential impact to neighbors • Potential impact to other operations • Potential impact to green field • Potential impact to cultural resources Minimize Adverse Effects

  14. Geologic Structure at PORTS

  15. Key Factors - Good HydrogeologicalConditions at Sites C and D • Factors Considered: • Depth to Water • Net Recharge • Soil Media • Vadose Zone Media • Aquifer Media • Topography • Hydraulic Conductivity • (including impacts of fractures) D B A C

  16. Key Decision: Waste Disposition PRELIMINARY ENGINEERING LAYOUTS

  17. OSDC Conceptual Model At Site C West East

  18. OSDC Conceptual Model At Site D

  19. Maximize Re-Industrialization Area Site D Site C

  20. Next Steps: Waste Disposition

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