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Studies, Reports, and Plans

• 2008 Draft Engineering Design Report
  
  
• Cleanup Action Plans
  A Cleanup Action Plan explains which cleanup alternatives and technologies will be used for cleanup.  The Cleanup Action Plan is based on information and technical analysis generated during the remedial investigation and feasibility study and in consideration of public comments and community concerns.
  • Draft Cleanup Action Plan - June 2007
  • Figures 1-9
  • Figures 10-14
  • Skykomish 2010 Visioning Report September 2005
• Remedial Investigation and Feasibility Study
  A remedial investigation and feasibility study are companion studies that determine the nature of the contamination and identify ways of cleaning up the contamination.
  • Letter from Ecology to BNSF acknowledging the Remedial Investigation, Supplemental Remedial Investigation and Feasibility Study as complete. August 2005
  • Draft Supplemental Remedial Investigation and Feasibility Study March 2005.  The report is available at the site information repositories located at Ecology's Northwest Regional Office, and the Skykomish Branch of the King County Library.
  • Determination of Significance and Request for Comments on Scope of EIS October 2002
  Draft Supplemental Remedial Investigation July 2002
  • Supplemental Remedial Investigation/Feasibility Study Work Plan November 2001
  Draft Remedial Investigation January 1996

• Interim Action-Barrier Wall and Levee
  An interim action is any cleanup action that partially addresses the cleanup of a site.
  Levee Engineering Design Report  May 2006
  • Phase 2 Interim Action Completion Report April 2003
  • Determination of Significance and Request for Comments on Scope of EIS October 2002
  • Responsiveness Summary July 2001
  • Addendum to the Agreed Order for Interim Action July 2001
  • Stability Calculations June 2001
  • Interim Action Basis of Design for Barrier System May 2001
    • Plate 1 Barrier Wall Alignment Corridor and Survey Points
    • State Environmental Policy Act (SEPA) Checklist May 2001
      • Conditions
      • Determination of Non-Significance
      • Groundwater Modeling Memorandum May 2001
  • Interim Action - Recovery Wells and Dust Suppressant Report January 1996
    • Report is available for review at  Ecology's Northwest Regional Office.  For more information, contact Susan Lee at 425-649-4486.