restoration alternatives development and evaluation west branch grand calumet river by dan sparks,...
TRANSCRIPT
Restoration Alternatives Development and Evaluation
West Branch
Grand Calumet River
By
Dan Sparks, USFWS, BFO
Presented by
Jim Smith, IDEM, OLQ
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
ap
Indianapolis Blvd.
White O
ak A
ve.
Colum
bia A
ve
Calum
et A
ve.
Hohm
an Ave.
State L
ine
Sohl R
oad
Railroad
Bridge
Proposed Project Reaches and
Past Sample Points
Burton & Dorkin, 1994
Data Gap 1Bathymetric / 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 2Need 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
Proposed Sampling
Data Gap 5Need 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 6Local 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?