Scope of Work Phase 1 - Project Orientation Task 1. Site Visit Task 2. Literature and Data Review Task 3. Data Gaps Task 4. Local Support Phase 2 - Fieldwork Task 5. Work Plans Task 6. Bathymetric and Topographic Survey Task 7. Sediment Sampling and Testing
Scope of Work Phase 3 - Analysis and Report Task 8. Data Analysis and Alternatives Development –No Action –Natural Recovery with Monitoring –Dredging w/ confined aquatic, nearshore, or upland disposal –Dredging w/ dewatering and treatment –Dredging and capping –Capping
Scope of Work Phase 3 - Analysis and Report Task 9. Restoration Alternatives Report –Introduction –Physical Setting –Sediment Properties –Potential Sediment Remediation Technologies –Screening of Sediment Remediation Technologies –Development of Detailed Restoration Alternatives –Evaluation of Restoration Alternatives –Appendices, etc.
Scope of Work Phase 3 - Analysis and Report Task 10. Meetings –Site Visit –Public Meetings Task 11. Project Management –Coordination –Correspondence –Subcontractor’s management, oversight –Billings –etc.
Results of Phase I Technical Memorandum Restoration Alternatives Development and Evaluation West Branch Grand Calumet River January 2002
Results of Phase I December 11, 2001 Site Visit Reviewed Literature and available data Recommended Project Reaches Identified 6 Data Gaps
apap Indianapolis Blvd. White Oak Ave. Columbia Ave Calumet Ave. Hohman Ave. State Line Sohl Road Railroad Bridge Proposed Project Reaches and Past Sample Points
Data Gap 1 Bathymetric / Topographic Survey Establish Riverbed Topography & Core Sample Elevations Develop Remedial Alteratives & Establish Dredging / Capping Quantities Assess Potential Disposal Sites Evaluate Potential Access to River Aid in Preparation of Final Restoration Plans
Data Gap 2 Need Engineering Base Drawings Historical Sampling Locations Proposed Sampling Locations Show Contaminated Sediment Sections Lay Out Preliminary Dredge / Capping Prisms & Materials Preliminary Locate & Lay Out Access Sites & Potential Disposal Areas
Data Gap 3 Transfer Sediment Core Data to Base Drawings Calculate (X,Y,Z) Sediment Core Data Locations Based on Bathymetric Survey Place Data on Base Maps
Data Gap 4 Proposed Additional Core Boring, Sediment Chemical / Physical Properties Between Indianapolis Blvd & White Oak Between White Oak & Columbia Ave. Between Columbia Ave. & Calumet Ave. Between Calumet Ave & Sohl Road Between Sohl Road & Hohman Ave. Between Railroad Bridge & State Line
Data Gap 5 Need Information on Access Sites Very Shallow Water Limited Access and Bank Stability for Equipment Insertion, Dewatering, Hauling Bridges have no Horizontal or Vertical Clearance for Equipment Movement from River Reach to River Reach
Data Gap 6 Local Sources of Services & Material Information is needed on: –Local Labor –Dredging Equipment –Construction Equipment –Fleet Vehicles –Aggregate & Sand –Concrete –Related Services
What’s Next Do we Proceed with Phase 2? Do we do all proposed sampling or reduce number? Are all parameters identified? Should we do additional Toxicity Sampling? Do we obtain New Aerial Photos to develop topographic base maps or can we use some flown in 1994 or 1995?