Grand Calumet River/Indiana Harbor
Canal Feasibility Study
East Chicago Waterway Management District
Jim Wescott
April 23, 2015
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.
GCR/IHC Progress
Completed/In Progress
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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
Current
Project Area –
GCR/IHC
Grand Calumet River Junction
Indiana Harbor Canal
Lake George Canal
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
GCR Surface Sediment Total 16 PAH
GCR Subsurface Sediment Total 16 PAH
GCR Surface Sediment PCBs
GCR Subsurface Sediment PCBs
GCR Surface Sediment Metals
IHC Surface Sediment Total 16 PAH
IHC Subsurface Sediment Total 16 PAH
IHC Surface Sediment PCBs
IHC Subsurface Sediment PCBs
IHC Surface Sediment Metals
LGC Surface Sediment Total 16 PAH
LGC Subsurface Sediment Total 16 PAH
LGC Surface Sediment PCBs
LGC Subsurface Sediment PCBs
LGC Surface Sediment Metals
Remedial Options
• No Action
• Monitored Natural
Recovery
• In Situ Capping
• Environmental Dredging
or Excavation
Grand Calumet River
Options
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
Indiana Harbor Canal
Options
Sediment
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
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
Selection Considerations
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Cost
Permits
Site Access
Utilities and other Debris
Sediment Characteristics
Long Term Effectiveness
Potential for Recontamination
Future End Use
Stakeholder and Community Acceptance
Typical Remedial Tasks
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
Questions?
Jim Wescott
Tetra Tech
[email protected]
312.201.7781