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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. 1. SLRIDT (St. Louis River/Interlake/Duluth Tar) Superfund Site Update December 1, 2010
  2. 2. <ul><li>SLRIDT Site Remediation Activities (2006-2009) </li></ul><ul><li>2010 Tallas Island Winter Dredging </li></ul><ul><li>2010 Construction Activities </li></ul><ul><li>2011 Construction Activities </li></ul>SLRIDT Superfund Site Update
  3. 3. SLRIDT Site Remediation 2006
  4. 4. SLRIDT Site Remediation 2007
  5. 5. SLRIDT Site Remediation 2008
  6. 6. SLRIDT Site Remediation 2009
  7. 7. SLRIDT 2010 Tallas Island Mitigation – Winter Work
  8. 8. SLRIDT 2010 Tallas Island Mitigation – Winter Work
  9. 9. Tallas Island Winter Dredging
  10. 10. Tallas Island Winter Dredging
  11. 11. Tallas Island Winter Dredging
  12. 12. Segregation of Vegetative Root Mass from Ice Tallas Island Winter Dredging
  13. 13. Tallas Island Winter Dredging
  14. 14. Tallas Island Winter Dredging
  15. 15. SLRIDT Superfund Site Update Tallas Island Winter Work
  16. 16. SLRIDT Superfund Site Update
  17. 17. SLRIDT Superfund Site Update
  18. 18. SLRIDT Site Remediation 2010
  19. 19. SLRIDT Superfund Site Update <ul><li>2010 Completed Construction Activities </li></ul><ul><li>Installation of Residential Docks in Stryker Bay </li></ul><ul><li>Installation of Reactive Carbon Mat in CAD </li></ul><ul><li>Environmental Media Placement-Above Water </li></ul><ul><li>CAD Cap Sand Delivery from Local Borrow Source </li></ul><ul><li> </li></ul><ul><li>CAD Capping with Sand Removed From Stryker Bay Surcharge and Local Borrow Sources </li></ul>
  20. 20. SLRIDT Superfund Site Update <ul><li>2010 Completed Construction Activities </li></ul><ul><li>Tallas Island Compensatory Mitigation Project-Environmental Media Dredging </li></ul><ul><li>Environmental Media Placement-Below Water </li></ul><ul><li>Stryker Bay Slip 7 </li></ul><ul><li>Slip 6/CAD </li></ul><ul><li>CAD End Dike Modifications </li></ul><ul><li>Shoreline Buffer Zone and Habitat Restoration (MN Portion Only) </li></ul><ul><li>Conduct Environmental Monitoring </li></ul>
  21. 21. Residential Docks Installed in Stryker Bay SLRIDT Superfund Site Update
  22. 22. SLRIDT Superfund Site Update ACM Installation in the CAD
  23. 23. SLRIDT Superfund Site Update ACM Installation in the CAD
  24. 24. SLRIDT Superfund Site Update ACM Installation in the CAD
  25. 25. SLRIDT Superfund Site Update ACM Installation in the CAD
  26. 26. SLRIDT Superfund Site Update <ul><li>EM Placement on Slip 7 Mud Flats Sand Cap </li></ul>
  27. 27. SLRIDT Superfund Site Update <ul><li>Vegetative Growth from EM Placement on Slip 7 Mud Flats Sand Cap </li></ul>
  28. 28. SLRIDT Superfund Site Update CAD Capping Sand Staged on Hallett Dock 6
  29. 29. SLRIDT Superfund Site Update CAD Capping Sand Staged on Hallett Dock 6
  30. 30. SLRIDT Superfund Site Update CAD Capping Sand Conveyor System
  31. 31. SLRIDT Superfund Site Update CAD Capping Sand Conveyor System
  32. 32. SLRIDT Superfund Site Update CAD Capping Sand Spreader Barge
  33. 33. SLRIDT Superfund Site Update CAD Capping Sand Spreader Barge
  34. 34. SLRIDT Superfund Site Update CAD Capping Sand Survey Operations
  35. 35. <ul><li>Daily Report for CAD capping sand placement </li></ul>SLRIDT Superfund Site Update
  36. 36. SLRIDT Superfund Site Update Tallas Island Dredging Equipment
  37. 37. SLRIDT Superfund Site Update Booster Pump For Transporting EM to SLRIDT Site
  38. 38. SLRIDT Superfund Site Update Spreader Barge Placing EM
  39. 39. SLRIDT Superfund Site Update Tallas Island Completed Dredge Area-Knowlton Creek
  40. 40. <ul><li>Shoreline Buffer Zone and Habitat Restoration Plan </li></ul>SLRIDT Superfund Site Update
  41. 41. SLRIDT Superfund Site Update EM Top Soil Stockpiling
  42. 42. SLRIDT Superfund Site Update Stryker Bay Buffer Zone Before Restoration
  43. 43. SLRIDT Superfund Site Update Stryker Bay Buffer Zone During Restoration
  44. 44. SLRIDT Superfund Site Update Stryker Bay Buffer Zone Before Restoration
  45. 45. SLRIDT Superfund Site Update Stryker Bay Buffer Zone After Restoration
  46. 46. SLRIDT Superfund Site Update Stryker Bay Buffer Zone After Restoration
  47. 47. SLRIDT Superfund Site Update 59 th Avenue Shoreline Buffer Zone Before Restoration
  48. 48. SLRIDT Superfund Site Update 59 th Avenue Shoreline Buffer Zone After Restoration
  49. 49. SLRIDT Superfund Site Update 59 th Avenue Shoreline Buffer Zone (MN Portion Complete) WI MN
  50. 50. SLRIDT Superfund Site Update Arrowhead Point Buffer Zone Before Restoration
  51. 51. SLRIDT Superfund Site Update Arrowhead Point Buffer Zone After Restoration
  52. 52. SLRIDT Superfund Site Update 54 th Avenue Peninsula EM Placement
  53. 53. SLRIDT Superfund Site Update 54 th Avenue Peninsula Restoration
  54. 54. SLRIDT Superfund Site Update 54 th Avenue Peninsula Buffer Zone Before Restoration - (East Side of CAD)
  55. 55. SLRIDT Superfund Site Update 54 th Avenue Peninsula Buffer Zone After Restoration - (East Side of CAD)
  56. 56. SLRIDT Superfund Site Update 54 th Avenue Peninsula Buffer Zone Before Restoration - (East Side of CAD)
  57. 57. SLRIDT Superfund Site Update 54 th Avenue Peninsula Buffer Zone After Restoration - (East Side of CAD)
  58. 58. SLRIDT Superfund Site Update 54 th Avenue Peninsula Buffer Zone During Restoration
  59. 59. SLRIDT Superfund Site Update 54 th Avenue Peninsula Buffer Zone After Restoration
  60. 60. SLRIDT Superfund Site Update CAD End Dike Prior to Removal
  61. 61. SLRIDT Superfund Site Update CAD End Dike Removal
  62. 62. SLRIDT Superfund Site Update CAD End Dike Removal
  63. 63. SLRIDT Superfund Site Update CAD End Dike Removal After Completion
  64. 64. SLRIDT Superfund Site Update 54 th Avenue Peninsula Buffer Zone Before Restoration
  65. 65. SLRIDT Superfund Site Update 54 th Avenue Peninsula Buffer Zone After Restoration
  66. 66. SLRIDT Superfund Site Update <ul><li>2011 Construction Activities </li></ul><ul><li>Shoreline Buffer Zone and Habitat Restoration-Wisconsin Portion </li></ul><ul><li>Long-Term Monitoring Activities </li></ul><ul><ul><li> </li></ul></ul>
  67. 67. SLRIDT Superfund Site Update - Next Steps <ul><li>Long Term Monitoring Plan: </li></ul><ul><li>1. Cap Effectiveness </li></ul><ul><li>2. Cap Stability </li></ul><ul><li>3. Vegetation Establishment </li></ul><ul><li>Benthic Establishment </li></ul><ul><li>Next Five Year Review for entire site </li></ul><ul><li>Start in 2012 and end in 2013 </li></ul>
  68. 68. SLRIDT Superfund Site Update - Next Steps <ul><li>Reports: </li></ul><ul><li>1. Construction Completion Report March 2011 </li></ul><ul><ul><li>Summary of activities </li></ul></ul><ul><ul><li>As-built plans </li></ul></ul><ul><ul><li>Data </li></ul></ul><ul><li>2. Annual Monitoring Report </li></ul><ul><ul><li>Site Activity Summary </li></ul></ul><ul><ul><li>Monitoring Data </li></ul></ul>
  69. 69. <ul><li>Want More Information? </li></ul><ul><li>Visit www.slridt.com or contact </li></ul><ul><li>Lisa Neitzel at lisa@jpgonline.com </li></ul><ul><li>Thank you! </li></ul>SLRIDT Superfund Site Update

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