Questar Southern Trails Pipeline Company submits the Quarterly Index of Customer for period ending January 1, 2011.

Northwest Pipeline GP PUBLIC Volume II (2 of 2) Environmental Report and Appendices (Resource Reports 3 through 13) North Seattle Delivery Lateral Expansion Project Docket No. CP11-_____ July 2011 North Seattle Delivery Lateral Expansion Project Table of Contents Table of Contents Volume I Public Prior Notice Request for the North Seattle Delivery Expansion Project Volume II (1 of 2) Public Environmental Report and Appendices Resource Report 1 General Project Description Appendix 1A Project Location Maps Appendix 1B Figures of Aboveground Facilities Appendix 1C Figure of Contractor and Pipe Storage Yard Appendix 1D Erosion Control and Revegetation Plan (ECRP) Appendix 1E CZM Preliminary Determination Appendix 1F GeoEngineers HDD Design Report Appendix 1G Landowner List (filed as Privileged) Resource Report 2 Water Use and Quality Appendix 2A Spill Plan for Oil and Hazardous Materials Appendix 2B Stream Fluming Procedures Appendix 2C Dam and Pump Procedures Appendix 2D Wetland/Stream Inventory Report Appendix 2E Scour Mitigation Impacts Letter Appendix 2F Wetland and Waterbody Mitigation Plan Appendix 2G Groundwater Supply Monitoring and Mitigation Plan Volume II (2 of 2) Public Environmental Report and Appendices Resource Report 3 Fish, Vegetation, and Wildlife Appendix 3A Common Names and Scientific Names for Animal and Plant Species Appendix 3B Fish Salvage Plan Appendix 3C Vertebrate Wildlife Species with Associations to Wildlife Habitats Coinciding with the Project Appendix 3D National Marine Fisheries Service Concurrence Appendix 3E U.S. Fish and Wildlife Service Concurrence Resource Report 4 Cultural Resources Appendix 4A Washington SHPO Coordination Appendix 4B Native American Coordination Appendix 4C Cultural Resources Assessment Report Appendix 4D Unanticipated Discovery Plan Resource Report 5 Socioeconomics (Not Applicable) Resource Report 6 Geological Resources Appendix 6A Geologic Hazards Assessment Resource Report 7 Soils Appendix 7A Correspondence Resource Report 8 Land Use, Recreation and Aesthetics Appendix 8A Residential Drawings Appendix 8B Three Rivers Trailer Park at North Seattle Take-off Site- Specific Construction Plan North Seattle Delivery Lateral Expansion Project Table of Contents Resource Report 9 Air Quality and Noise (Not Applicable) Appendix 9A HDD Noise Study Resource Report 10 Alternatives Resource Report 11 Reliability and Safety Resource Report 12 PCB Contamination Resource Report 13 Additional Information Related to LNG Plants (Not Applicable) Volume III CEII (Do Not Release) Volume IV Privileged Information (Do Not Release) Northwest Pipeline GP Resource Report No. 3 Fish, Wildlife, and Vegetation North Seattle Delivery Lateral Expansion Project July 2011