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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. Where We Are Now.

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Presentation Transcript
slide1

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

where we are now
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.
the key decisions
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 .
participants in key decisions
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

slide5

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?
slide6

Key Decision: Waste Disposition

OSDC SITING EFFORT TO DATE

previous siting studies
Previous Siting Studies
  • The entire site has been evaluated.
  • Study areas were about 150 acres each.
  • The ID numbers are in no particular order.
current waste disposition ri fs
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

slide10

Key Decision: Waste Disposition

SUPPORTING INFORMATION

OF THE RANKING

decision analysis factors considered
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

key factors good hydrogeological conditions at sites c and d
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

slide16

Key Decision: Waste Disposition

PRELIMINARY

ENGINEERING LAYOUTS