Response to FERC Notification of Required Corrective Action or Response dated May 7, 2015 of Columbia Gas Transmission, LLC under CP14-17.

PF15-20-000 Rio Grande LNG Project Rio Bravo Pipeline Project Draft Summary of Alternatives May 12, 2015 Prepared for: Rio Grande LNG, LLC & Rio Bravo Pipeline Company, LLC 3 Waterway Square Place, Suite 400 Houston, TX 77380 Prepared by: 2 Riverway Drive, Suite 625 Houston, TX 77056 This page intentionally left blank. Draft Summary of Alternatives Report SUMMARY OF FILING INFORMATION SECTION INFORMATION REFERENCE Minimum Filing Requirements 1. Address the no action alternative ( 380.12 (l)(1)) Section 3 Discuss the costs and benefits associated with the alternative. 2. For large Projects, address the effect of energy conservation or energy Section 4.1 alternatives to the Project ( 380.12 (l)(1)) 3. Identify system alternatives considered during the identification of the Section 4.2 Project and provide the rationale for rejecting each alternative ( 380.12 (Terminal) (l)(1)). Section 5.1 Discuss the costs and benefits associated with the alternative. (Pipeline) 4. Identify major and minor route alternatives considered to avoid impact on sensitive environmental areas (e.g., wetlands, parks, or residences) and provide sufficient comparative data to justify the selection of the Section 5.3 proposed route ( 380.12 (l)(2)(ii)) For onshore projects near offshore areas, be sure to address alternatives using offshore routings. 5. Identify alternative sites considered for the location of major new Section 4.5 aboveground facilities and provide sufficient comparative data to justify (Terminal) the selection of the proposed site ( 380.12 (l)(2)(ii)). Section 6.1 (Compressor Stations) i Draft Summary of Alternatives Report Table of Contents Section Page 1 Introduction ......................................................................................... 1-1 2 Project Description Summary .............................................................. 2-1 3 No-Action Alternative ......................................................................... 3-1 4 Terminal Facilities ............................................................................... 4-1 4.1 Alternative Energy Sources and Conservation ................................................................ 4-1 4.2 System Alternatives ................................................................................................................. 4-4 4.2.1 Existing LNG Export Facilities ................................................................................. 4-4 4.2.2 LNG Export Facilities Planned in the Gulf of Mexico Region ........................ 4-4 4.2.3 LNG Export Facilities Planned in the Brownsville Area ................................... 4-9 4.3 Offshore Terminal Alternative ............................................................................................ 4-10 4.4 Terminal Site Development ................................................................................................ 4-10 4.5 Terminal Site Alternatives .............................................