Gas Transmission Northwest LLC submits tariff filing per 154.203: Reserveration Credit Compliance to RP12-15 to be effective 1/12/2012 under RP12-15 Filing Type : 580

Transcontinental Gas Pipe Line Company, LLC Resource Report No. 1 General Project Description Supplemental Project Information No. 2 Dalton Expansion Project Docket No. CP15-117-000 September 2015 DALTON EXPANSION PROJECT RESOURCE REPORT 1 - GENERAL PROJECT DESCRIPTION RESOURCE REPORT 1 - GENERAL PROJECT DESCRIPTION Summary of Filing Information Minimum Requirements Found in Section 1. Provide a detailed description and location Figure of the project facilities. ( 380.12[c][1]) Section 1.2.2 Include all pipeline and aboveground facilities. Section 1.2.3 Include support areas for construction or operation. Figure 1-1 Identify facilities to be abandoned. 2. Describe any non-jurisdictional facilities that will be built in association with the project. ( 380.12[c][2]) Include auxiliary facilities (See 2.55[a]). Describe the relationship to the jurisdictional facilities. Section 1.8 Include ownership, land requirements, gas consumption, megawatt size, construction status, and an update of the latest status of federal, state, and local permits/ approvals. Include the length and diameter of any interconnecting pipeline. Apply the four-factor test to each facility (see 380.12[c] [2] (ii)). Figure 1-4 3. Provide current original U.S. Geological Survey (USGS) 7.5-minute-series topographic Figure 1-7 Figures with mileposts showing the project facilities. ( 380.12[c][3]) Figure 1-10 Show locations of all linear project elements, and label them. Figure 1-13 Show locations of all significant aboveground facilities, and label them. Figure 1-16 Figure 1-19 4. Provide aerial images or photographs or alignment sheets based on these sources with mileposts showing the project facilities. ( 380.12[c][3]) Appendix II.A No more than 1-year old. (Volume II) Scale no smaller than 1:6,000. 5. Provide plot/site plans of compressor stations showing the location of the nearest noise-sensitive areas (NSA) within 1 mile. ( 380.12[c][3,4]) Resource Report 9 Air and Noise Scale no smaller than 1:3,600. Quality Show reference to topographic Figures and aerial alignments provided above. 6. Describe construction and restoration methods. ( 380.12[c][6]) Section 1.3 Include this information by milepost. 7. Identify the permits required for construction across surface waters. ( 380.12[c][9]) Table 1-10 Include the status of all permits. 8. Provide the names and address of all affected landowners and certify that all affected Appendix III.A landowners will be notified as required in 157.6(d). ( 380.12[c][10]) (Volume III) Provide an electronic copy directly to the environmental staff. Section 1.7 ii DALTON EXPANSION PROJECT RESOURCE REPORT 1 - GENERAL PROJECT DESCRIPTION Additional Information Found in Section Describe all authorizations required to complete the proposed action and the status of Table 1-10 applications for such authorizations. Appendix II.B Plot site plans of all other aboveground facilities which are not completely within the right-of- (Volume II)