Final Supplemental Environmental Impact Statement for the Keystone XL Project. Volume III - Chapter 4

On May 4, 2012, TransCanada Keystone Pipeline, LP (Keystone) filed a Presidential Permit application for a new Keystone XL Project with the United States Department of State for the proposed construction, connection, operation, and maintenance of a pipeline and associated facilities at the United States border for importation of crude oil from Canada. This chapter describes the direct and indirect environmental impacts that would be caused by the construction, operation, maintenance, and decommissioning of the proposed Keystone XL Project (proposed Project) and discusses mitigation measures. The U.S. Department of State has issued this Final Supplemental Environmental Impact Statement (Final Supplemental EIS), which builds on the Final EIS completed in August 2011 and the Draft Supplemental EIS completed in March 2013. These analyses have been revised, expanded, and updated in this Final Supplemental EIS to include significant new circumstances or information that has become available. Particular attention has been placed on impacts within those portions of the proposed Project and its connected actions that differ from the previously proposed Keystone XL pipeline route. Cumulative environmental impacts of the proposed Project and other past, present, and reasonably foreseeable projects are described separately in Section 4.15, Cumulative Effects Assessment. Impacts associated with alternatives to the proposed Project are described in Chapter 5, Alternatives.


  • English

Media Info

  • Media Type: Digital/other
  • Features: Figures; References; Tables;
  • Pagination: 752p

Subject/Index Terms

Filing Info

  • Accession Number: 01520709
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Mar 18 2014 2:41PM