Tallgrass Pony Express Pipeline, LLC submits tariff filing per : Amend Transmittal in IS15-493-000 to be effective N/A under IS15-493 Filing Type : 950

ROVER PIPELINE PROJECT Supplement Resource Report 1: Project Description VOLUME IIA APPENDIX 1A Updated Tables June 2015 TABLE 1.3-1 Pipeline Facilities.................................................................................................... 1 TABLE 1.3-2 CGT Leach Xpress Project and Rover Pipeline Project Overlap ............................ 2 TABLE 1.3-4 Meter Station Facilities ............................................................................................ 3 TABLE 1.3-5 Tie-In Facilities........................................................................................................ 4 TABLE 1.3-6 Summary of Status of Completed Civil and Environmental Surveys through May 1, 2015..................................................................................................................................... 5 TABLE 1.4-1 Summary of Estimated Construction and Operation Land Requirements............... 6 TABLE 1A-1 Locations Where Rover Pipelines Will Be Adjacent to Existing Rights-of-Way ... 7 TABLE 1A-2 Locations of Pipelines and Aboveground Facilities .............................................. 13 TABLE 1A-3 Additional Temporary Workspace Requirements ................................................. 19 TABLE 1A-4 Permanent and Temporary Access Roads ............................................................. 81 TABLE 1A-6 Hydrostatic Test Water Source and Discharge Locations ..................................... 96 TABLE 1A-7 Proposed Horizontal Directional Drill (HDD) Locations .................................... 100 TABLE 1A-8 Road and Railroad Crossing Methods ................................................................. 102 TABLE 1. Justification for Additional Temporary Workspace (ATWS) that is located within 50 feet of a Waterbody or Wetland ..................................................................................... 123 TABLE 2. Justification for Construction Right-of-Way Width in Wetlands ........................... 139 June 2015 ROVER PIPELINE PROJECT Supplement Resource Report 1: Project Description TABLE 1.3-1 Pipeline Facilities Pipeline Approximate Pipeline Segment County, State Diameter (inches) Length (mi) Supply Laterals: Doddridge, Tyler, and Wetzel, WV 35.7 Sherwood Lateral 36 Monroe, OH 18.3 CGT Lateral 24 Doddridge, WV 5.7 Seneca Lateral 42 Noble and Monroe, OH 25.7 Berne Lateral 24 Noble and Monroe, OH 4.2 Clarington Lateral 42 Monroe, Belmont, and Harrison, OH 32.8 Marshall, WV 12.5 Majorsville Lateral 24 Belmont, OH 11.2 Cadiz Lateral 30 Harrison, OH 3.4 Supply Connector Line A1 18.6 42 Harrison and Carroll, OH Supply Connector Line B1 18.6 Washington, PA 10.1 Burgettstown Lateral 36 Hancock, WV 5.5 Jefferson and Carroll, OH 36.1 Supply Laterals Subtotal 238.4 Mainlines: Mainline A1 Carroll, Tuscarawas, Stark, Wayne, 190.9 Ashland, Richland, Crawford, Seneca, 42 Mainline B1 Hancock, Wood, Henry, and Defiance, 183.6 OH Defiance, Henry, and Fulton, OH 27.8 Market Segment 42 Lenawee, Washtenaw, and