Document LKjY5BRor945G0LgbkpBKxOpz

October 19, 2017 The Honorable Scott Pruitt Environmental Protection Agency 1200 Pennsylvania Avenue, N.W. Washington, DC 20460 Administrator Pruitt; On behalf of Governor Bill Walker, I am sending you additional detailed information to support the concerns raised in his October 4, 2017 ietter to you. In his letter, Governor Walker asks for your assistance in resolving some critical issues raised by EPA Region 10 that could cause significant problems for our efforts to develop North Slope natural gas resources and that we believe are inconsistent with the priorities of President Trump. in light of the complexity of these issues, I am enclosing several documents from our Alaska Stand Alone Pipeline (ASAP) project and our Alaska LNG project that will help you and your staff better understand our concerns: 1. The ASAP Belowground Pipeline Mode: Selection, Construction. Operation, and Maintenance on Alaska's North Slope. This report evaluates the constructability, operational reliability, and environmental issues with belowground and aboveground pipelines, and demonstrates why the belowground pipeline is preferred, and how agency concerns can be alleviated. 2. Analysis of Potential Indirect Impacts to Wetlands Related to Buried Pipeline Construction. This document provides an analysis of whether abutting or adjacent wetlands outside the construction right-of-way for the ASAP Project would be impacted by indirect thaw to permafrost. 3. Why Alaska's Natural Gas Pipeline Should Be Buried. This document summarizes and updates much of the information in the above documents for the Alaska LNG Project. 4. Draft Wetlands Compensatory Mitigation Plan. This document proposes a wetlands mitigation strategy for the ASAP Project that was developed using guidance from the regional office of the US Army Corps of Engineers that takes into account Alaska's vast and undeveloped wetlands acreage. These documents comprise just a small portion of the information the Alaska Gasline Development Corporation has provided both the US Army Corps of Engineers as lead agency for the ASAP SEIS process, and to the Federal Energy Regulatory Commission for the Alaska LNG i'c: r.,i >oratic JPOt t, Snc-e' Sierra Club v. EPA 18cv3472 NDCA Tier 3/4 Arse 'iuK'inn. An PmjCM www.agdc.us ED 002061 00098614-00001 October 19, 2017 Additional Information Regarding EPA Region 10 ~ Page 2 Section 3 application. We would be happy to work with your staff if additional information is necessary or answer any questions they might have. Sincerely, Frank T. Richards, P.E. Senior Vice President, Program Management cc: Lee Forsgren, Deputy Assistant Administrator, EPA Office of Water Chris Hladick, EPA Region 10 Administrator John Crowther, Director of State and Federal Relations, D.C. Office of Governor Walker Enclosures: The ASAP Belowground Pipeline Mode: Selection, Construction, Operation, and Maintenance on Alaska's North Slope Analysis of Potential Indirect Impacts to Wetlands Related to Buried Pipeline Construction Why Alaska's Natural Gas Pipeline Should Be Buried Draft Wetlands Compensatory Mitigation Plan Alaska Governor Bill Walker Letter to Administrator Pruitt, October 4, 2017 Alaska Gasline Development Corporation | 3201 C St., Suite 200, Anchorage, AK 99503 \ www.agdc.us Sierra Club v. EPA 18cv3472 NDCA Tier 3/4 ED 002061 00098614-00002