HTAC 12 01-10 SLRIDT Update
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This is the presentation about the SLRIDT superfund site restoration in the Duluth-Superior harbor, given at the meeting of the Harbor Technical Advisory Committee (HTAC) on 12-1-10.
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HTAC 12 01-10 SLRIDT Update
- 1. SLRIDT (St. Louis River/Interlake/Duluth Tar) Superfund Site Update December 1, 2010
- 3. SLRIDT Site Remediation 2006
- 4. SLRIDT Site Remediation 2007
- 5. SLRIDT Site Remediation 2008
- 6. SLRIDT Site Remediation 2009
- 7. SLRIDT 2010 Tallas Island Mitigation – Winter Work
- 8. SLRIDT 2010 Tallas Island Mitigation – Winter Work
- 9. Tallas Island Winter Dredging
- 10. Tallas Island Winter Dredging
- 11. Tallas Island Winter Dredging
- 12. Segregation of Vegetative Root Mass from Ice Tallas Island Winter Dredging
- 13. Tallas Island Winter Dredging
- 14. Tallas Island Winter Dredging
- 15. SLRIDT Superfund Site Update Tallas Island Winter Work
- 16. SLRIDT Superfund Site Update
- 17. SLRIDT Superfund Site Update
- 18. SLRIDT Site Remediation 2010
- 21. Residential Docks Installed in Stryker Bay SLRIDT Superfund Site Update
- 22. SLRIDT Superfund Site Update ACM Installation in the CAD
- 23. SLRIDT Superfund Site Update ACM Installation in the CAD
- 24. SLRIDT Superfund Site Update ACM Installation in the CAD
- 25. SLRIDT Superfund Site Update ACM Installation in the CAD
- 28. SLRIDT Superfund Site Update CAD Capping Sand Staged on Hallett Dock 6
- 29. SLRIDT Superfund Site Update CAD Capping Sand Staged on Hallett Dock 6
- 30. SLRIDT Superfund Site Update CAD Capping Sand Conveyor System
- 31. SLRIDT Superfund Site Update CAD Capping Sand Conveyor System
- 32. SLRIDT Superfund Site Update CAD Capping Sand Spreader Barge
- 33. SLRIDT Superfund Site Update CAD Capping Sand Spreader Barge
- 34. SLRIDT Superfund Site Update CAD Capping Sand Survey Operations
- 36. SLRIDT Superfund Site Update Tallas Island Dredging Equipment
- 37. SLRIDT Superfund Site Update Booster Pump For Transporting EM to SLRIDT Site
- 38. SLRIDT Superfund Site Update Spreader Barge Placing EM
- 39. SLRIDT Superfund Site Update Tallas Island Completed Dredge Area-Knowlton Creek
- 41. SLRIDT Superfund Site Update EM Top Soil Stockpiling
- 42. SLRIDT Superfund Site Update Stryker Bay Buffer Zone Before Restoration
- 43. SLRIDT Superfund Site Update Stryker Bay Buffer Zone During Restoration
- 44. SLRIDT Superfund Site Update Stryker Bay Buffer Zone Before Restoration
- 45. SLRIDT Superfund Site Update Stryker Bay Buffer Zone After Restoration
- 46. SLRIDT Superfund Site Update Stryker Bay Buffer Zone After Restoration
- 47. SLRIDT Superfund Site Update 59 th Avenue Shoreline Buffer Zone Before Restoration
- 48. SLRIDT Superfund Site Update 59 th Avenue Shoreline Buffer Zone After Restoration
- 49. SLRIDT Superfund Site Update 59 th Avenue Shoreline Buffer Zone (MN Portion Complete) WI MN
- 50. SLRIDT Superfund Site Update Arrowhead Point Buffer Zone Before Restoration
- 51. SLRIDT Superfund Site Update Arrowhead Point Buffer Zone After Restoration
- 52. SLRIDT Superfund Site Update 54 th Avenue Peninsula EM Placement
- 53. SLRIDT Superfund Site Update 54 th Avenue Peninsula Restoration
- 54. SLRIDT Superfund Site Update 54 th Avenue Peninsula Buffer Zone Before Restoration - (East Side of CAD)
- 55. SLRIDT Superfund Site Update 54 th Avenue Peninsula Buffer Zone After Restoration - (East Side of CAD)
- 56. SLRIDT Superfund Site Update 54 th Avenue Peninsula Buffer Zone Before Restoration - (East Side of CAD)
- 57. SLRIDT Superfund Site Update 54 th Avenue Peninsula Buffer Zone After Restoration - (East Side of CAD)
- 58. SLRIDT Superfund Site Update 54 th Avenue Peninsula Buffer Zone During Restoration
- 59. SLRIDT Superfund Site Update 54 th Avenue Peninsula Buffer Zone After Restoration
- 60. SLRIDT Superfund Site Update CAD End Dike Prior to Removal
- 61. SLRIDT Superfund Site Update CAD End Dike Removal
- 62. SLRIDT Superfund Site Update CAD End Dike Removal
- 63. SLRIDT Superfund Site Update CAD End Dike Removal After Completion
- 64. SLRIDT Superfund Site Update 54 th Avenue Peninsula Buffer Zone Before Restoration
- 65. SLRIDT Superfund Site Update 54 th Avenue Peninsula Buffer Zone After Restoration
Editor's Notes
- Proposed Post-Mitigation Bathymetry
- View of work area looking north from the work access ramp.
- Stockpiling of EM within the Tallas Island dredge boundary area
- Vegetation and EM removal. (Note: clear view of open water flowing into newly dredged area)
- Vegetative root mass, EM, and ice The vegetative root mass removed from Tallas Island during the Winter Work was placed in the North and South Wetland areas and the Slip 7 Mud Flats.
- Vegetation removal and EM stockpiling in the center of Tallas Island working toward the access ramp
- Tallas Island vegetation removal, EM stockpiling, and live offloading of trucks (near completion)
- Stu Russell
- Stu Russell
- Ruben Johnson and Sons (RJS)-WI Pit Udeen Trucking, Inc.-WI Pit Burnett Aggregate-MN Pit Duluth Ready Mix (DRM)-MN Pit Ulland Brothers-MN Pit ﾊ
- The USEPA (GLNPO) and XIK Corp funded ﾊ ( ~50%/50%) a Betterment to the SLRIDT Site Sediment Operable Unit Remedy known as the SLRIDT CAD ACM (Activated Carbon Mat) Project which was NOT a requirement of the Record of Decision (ROD). The ACM installed in the CAD provides additional protectiveness to human health, to the environment and is recognized as a New Technology. ﾊ
- Sand bags were used to ballast the ACM on the previously placed cap sand, which is the 6 inches of Isolation Zone Capping Sand placed near the end of the 2009 construction season, at the bottom of the CAD. An additional 4 feet of sand cap and 6 inches of Environmental Media, from Tallas Island, was placed on top of the ACM.