Grand Calumet River/Indiana Harbor Canal Feasibility Study East Chicago Waterway Management District...
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![Page 1: Grand Calumet River/Indiana Harbor Canal Feasibility Study East Chicago Waterway Management District Jim Wescott April 23, 2015.](https://reader035.fdocuments.in/reader035/viewer/2022062407/56649d705503460f94a52dd7/html5/thumbnails/1.jpg)
Grand Calumet River/Indiana Harbor Canal Feasibility Study
East Chicago Waterway Management DistrictJim Wescott
April 23, 2015
![Page 2: Grand Calumet River/Indiana Harbor Canal Feasibility Study East Chicago Waterway Management District Jim Wescott April 23, 2015.](https://reader035.fdocuments.in/reader035/viewer/2022062407/56649d705503460f94a52dd7/html5/thumbnails/2.jpg)
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.
![Page 3: Grand Calumet River/Indiana Harbor Canal Feasibility Study East Chicago Waterway Management District Jim Wescott April 23, 2015.](https://reader035.fdocuments.in/reader035/viewer/2022062407/56649d705503460f94a52dd7/html5/thumbnails/3.jpg)
GCR/IHC Progress
![Page 4: Grand Calumet River/Indiana Harbor Canal Feasibility Study East Chicago Waterway Management District Jim Wescott April 23, 2015.](https://reader035.fdocuments.in/reader035/viewer/2022062407/56649d705503460f94a52dd7/html5/thumbnails/4.jpg)
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
![Page 5: Grand Calumet River/Indiana Harbor Canal Feasibility Study East Chicago Waterway Management District Jim Wescott April 23, 2015.](https://reader035.fdocuments.in/reader035/viewer/2022062407/56649d705503460f94a52dd7/html5/thumbnails/5.jpg)
Current Project Area – GCR/IHC
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Grand Calumet River Junction
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Indiana Harbor Canal
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Lake George Canal
![Page 9: Grand Calumet River/Indiana Harbor Canal Feasibility Study East Chicago Waterway Management District Jim Wescott April 23, 2015.](https://reader035.fdocuments.in/reader035/viewer/2022062407/56649d705503460f94a52dd7/html5/thumbnails/9.jpg)
RI/FS Tasks
Remedial Investigation
• Sediment Sampling• Pore Water Sampling• Source Control
Evaluation
Feasibility Study
• Bathymetric and Topographic Surveys
• Geotechnical Sampling• Clean Up Goals
Development• Remedial Alternative
Screening and Evaluation
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GCR Surface Sediment Total 16 PAH
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GCR Subsurface Sediment Total 16 PAH
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GCR Surface Sediment PCBs
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GCR Subsurface Sediment PCBs
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GCR Surface Sediment Metals
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IHC Surface Sediment Total 16 PAH
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IHC Subsurface Sediment Total 16 PAH
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IHC Surface Sediment PCBs
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IHC Subsurface Sediment PCBs
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IHC Surface Sediment Metals
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LGC Surface Sediment Total 16 PAH
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LGC Subsurface Sediment Total 16 PAH
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LGC Surface Sediment PCBs
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LGC Subsurface Sediment PCBs
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LGC Surface Sediment Metals
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Remedial Options
• No Action
• Monitored Natural Recovery
• In Situ Capping
• Environmental Dredging or Excavation
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Grand Calumet RiverOptions
Sediment
1.Dredge 10 feet of River (Majority of Impacted Sediment) and place 2 feet of sand over remaining sediment. Estimated $43,000,000
2.Dredge 3 feet of West Branch. Place active cap material over West and East Branches. Estimated $16,000,000.
3.Option 2 with targeted dredging in East Branch. Estimated $17,500,000
Habitat
1.Dredge and rebuild/restore Junction Marsh and the USS Lead Marsh. Estimated $13,000,000
2.Invasive Species control and replant both marshes. Estimated $1,000,000
3.Option 2 with partial dredging along river boundary. Estimated $7,500,000
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Indiana Harbor Canal OptionsSediment
1.Dredge 8 feet of Canal (Majority of Impacted Sediment) and place 2 feet of sand over remaining sediment. Estimated $48,000,000
2.Option 1 with 1 foot sand. Estimated $44,000,000
3.Partial dredging for PCB areas and place 2 feet of sand over remaining sediment. Estimated $15,000,000
4.Option 3 with 1 foot sand. Estimated $11,000,000
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Lake George Canal Options
Lake George Canal East of Railroad Bridge
1.Dredge area to navigation channel depth (10 feet) Estimated $8,000,000
2.Partial dredge to reduce resuspension (5 feet) Estimated $4,000,000
Lake George Canal between Railroad Bridge and Land Bridge
1.Partial dredge (5 feet) and 2 feet sand cap. Estimated $8,500,000
2.Six (6) foot sand cap. Estimated $4,500,000
Lake George Canal west of Land Bridge
1.Dredge 6 feet and 1 foot sand cap. Estimated $ 18,000,000
2.No Action
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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
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Typical Remedial Tasks
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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