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Grand Calumet River/Indiana Harbor Canal Feasibility Study

Grand Calumet River/Indiana Harbor Canal Feasibility Study. East Chicago Waterway Management District Jim Wescott April 23, 2015. Grand Calumet River & Indiana Harbor Canal.

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Grand Calumet River/Indiana Harbor Canal Feasibility Study

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  1. Grand Calumet River/Indiana Harbor Canal Feasibility Study East Chicago Waterway Management District Jim Wescott April 23, 2015

  2. Grand Calumet River & Indiana Harbor Canal • East Chicago Waterway Management District and EPA are funding an investigation and study of the GCR/IHC to develop a remedial design • ECWMD, EPA, and their consultant, Tetra Tech, want stakeholder feedback on remedial options, funding priorities, future end use, and other stakeholder groups not represented here today.

  3. GCR/IHC Progress

  4. Completed/In Progress • EBGCR USS Steel Section: Hydraulic Dredging • WBGCR Reaches 3-5: Mechanical Excavation and Capping • WBGCR Reaches 1&2:Hydraulic Dredging, Mechanical Excavation, Capping, and Habitat Restoration • EBGCR Reaches 4A&4B: Hydraulic Dredging, Mechanical Excavation, Capping, and Habitat Restoration • WBGCR Reaches 6&7:Mechanical Excavation and Capping • EBGCR Gary Section: Feasibility Study/Remedial Design • WB/EB GCR, Indiana Harbor Canal, and Lake George Canal Remedial Investigation and Feasibility Study

  5. Current Project Area – GCR/IHC

  6. Grand Calumet River Junction

  7. Indiana Harbor Canal

  8. Lake George Canal

  9. RI/FS Tasks Remedial Investigation Feasibility Study Bathymetric and Topographic Surveys Geotechnical Sampling Clean Up GoalsDevelopment Remedial Alternative Screening and Evaluation • Sediment Sampling • Pore Water Sampling • Source Control Evaluation

  10. GCR Surface Sediment Total 16 PAH

  11. GCR Subsurface Sediment Total 16 PAH

  12. GCR Surface Sediment PCBs

  13. GCR Subsurface Sediment PCBs

  14. GCR Surface Sediment Metals

  15. IHC Surface Sediment Total 16 PAH

  16. IHC Subsurface Sediment Total 16 PAH

  17. IHC Surface Sediment PCBs

  18. IHC Subsurface Sediment PCBs

  19. IHC Surface Sediment Metals

  20. LGC Surface Sediment Total 16 PAH

  21. LGC Subsurface Sediment Total 16 PAH

  22. LGC Surface Sediment PCBs

  23. LGC Subsurface Sediment PCBs

  24. LGC Surface Sediment Metals

  25. Remedial Options • No Action • Monitored Natural Recovery • In Situ Capping • Environmental Dredging or Excavation

  26. Grand Calumet RiverOptions Sediment Dredge 10 feet of River (Majority of Impacted Sediment) and place 2 feet of sand over remaining sediment. Estimated $43,000,000 Dredge 3 feet of West Branch. Place active cap material over West and East Branches. Estimated $16,000,000. Option 2 with targeted dredging in East Branch. Estimated $17,500,000 Habitat Dredge and rebuild/restore Junction Marsh and the USS Lead Marsh. Estimated $13,000,000 Invasive Species control and replant both marshes. Estimated $1,000,000 Option 2 with partial dredging along river boundary. Estimated $7,500,000

  27. Indiana Harbor Canal Options Sediment Dredge 8 feet of Canal (Majority of Impacted Sediment) and place 2 feet of sand over remaining sediment. Estimated $48,000,000 Option 1 with 1 foot sand. Estimated $44,000,000 Partial dredging for PCB areas and place 2 feet of sand over remaining sediment. Estimated $15,000,000 Option 3 with 1 foot sand. Estimated $11,000,000

  28. Lake George Canal Options Lake George Canal East of Railroad Bridge Dredge area to navigation channel depth (10 feet) Estimated $8,000,000 Partial dredge to reduce resuspension (5 feet) Estimated $4,000,000 Lake George Canal between Railroad Bridge and Land Bridge Partial dredge (5 feet) and 2 feet sand cap. Estimated $8,500,000 Six (6) foot sand cap. Estimated $4,500,000 Lake George Canal west of Land Bridge Dredge 6 feet and 1 foot sand cap. Estimated $ 18,000,000 2.No Action

  29. Selection Considerations • Cost • Permits • Site Access • Utilities and other Debris • Sediment Characteristics • Long Term Effectiveness • Potential for Recontamination • Future End Use • Stakeholder and Community Acceptance

  30. Typical Remedial Tasks

  31. Time Frame and Costs • Begin Dredging spring 2016 • Complete remedial action 2018-2020 • Cost Ranges from $40 Mil to $145 Mil • Schedule heavily dependent on non-federal and federal funding • Construction could be broken into smaller pieces to facilitate funding and stakeholder priorities • Seeking Project Partners

  32. Questions? Jim Wescott Tetra Tech jim.wescott@tetratech.com 312.201.7781

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