2.1 Overview of the Proposed Project - Keystone XL pipeline - US ...

Draft Supplemental Environmental Impact StatementKeystone XL ProjectDecommissioning activities would have to be conducted consistent with all applicable regulatoryrequirements that are in place at the time of decommissioning. Since regulations at the federal,state, and local level change over time, it would be highly speculative to estimate whatregulatory framework would apply to the proposed Project decommissioning at the end of theuseful life of the proposed Project more than 50 years in the future.Prior to decommissioning the proposed Project, Keystone would identify the decommissioningprocedures it would use along each portion of the route, identify the regulations it would berequired to comply with, and submit applications for the appropriate environmental permits. Atthat point, Keystone and the issuing agencies would address the environmental impacts ofimplementation of the decommissioning procedures and identify the mitigation measuresrequired to avoid or minimize impacts.It is likely that after decommissioning there would be fewer land use restrictions than duringoperation of the proposed Project since either the ROW would no longer have strictencroachment limitations for protection of the purged pipeline, or the pipeline may have beenremoved and there would no longer be limitations of use of the former ROW.As noted above, PHMSA regulations require that hazardous liquids pipelines be purged ofcombustibles prior to decommissioning. Therefore the potential for the release of contaminantsfrom the decommissioned pipeline would be negligible.2.1.14 Referencesexp Energy Services, Inc. 2012a. TransCanada Keystone XL Pipeline Project SupplementalEnvironmental Report for the Nebraska Reroute. Document Number KXL-TAL-1005­002. Tallahassee, FL. September 5, 2012.___________. 2012b. TransCanada Keystone XL Pipeline Project Environmental Report.Document Number KXL-TAL-1005-002. Tallahassee, FL. September 7, 2012.National Transportation Safety Board (NTSB). 2012. Enbridge Incorporated. Hazardous LiquidPipeline Ruptured and Release. Marshall, Michigan, July 25, 2010. Accident Report.NTSB/PAR-12/01, PB2012-916501. July 10, 2012.NTSB. See National Transportation Safety Board.TransCanada Keystone Pipeline LP (TC). 2012. Application to DOS for a Presidential Permit.May 4, 2012.Project Description 2.1-88 March 2013