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INTEROFFICE MEMORANDUM <br />Date: 16 April 2015 <br />To: Brock Bowles, Lead Specialist <br />�r <br />From: Marcia L. Talvitie, P.E. <br />Subject: New Horizon North Mine (Permit No. C- 2010 -089) <br />TR -08 - Southeast Haul Road As -Built Certification <br />Engineering Review No. 2 <br />I've reviewed the package submitted by Tri -State Generation and Transmission Association (Tri- <br />State) on April 2, 2015 in response to the Division's Dec. 26, 2014 preliminary adequacy review. <br />Haul Roads for the New Horizon North Mine are addressed in the following sections of the <br />approved Permit Application Package (PAP): <br />• Section 2.05.3(3) — Mine Facilities (revised with TR -03 and again with TR -05), pages 4 -9 <br />• Map 2.05.3(3) -3 — Haul Road Alignment and Details (not revised since permit approval in <br />June -2012) <br />The original TR -08 application (received on Nov. 19, 2014) included a new SEDCAD <br />demonstration for the haul road drainage ditch, new Map 2.05.3(3) -4 — Southeast Coal Haul <br />Road As- Built, and no revised permit text. The April 2015 response packages includes the <br />following items: <br />• Cover Letter, providing written responses to each of the Division's adequacy comments <br />• Section 2.05.3(3) Revised Cover Page and Table of Contents <br />• Section 2.05.3(3) Revised Page 4 <br />• Appendix 2.05.3(3) -3 Cover Page (New) <br />• Appendix 2.05.3(3) -3 Engineer's Certificate (New) <br />• Appendix 2.05.3(3) -3 SEDCAD Run - Pages 1 -6 (New) <br />• Map 2.05.3(3) -4 (Revised from original application submittal) <br />My original comments are summarized below, and updated to reflect the current status of <br />each. <br />1. Haul road nomenclature ( "West" versus "Southeast ") <br />Section 2.05.3(3) and Appendix 2.05.3(3) -3 now use nomenclature consistent with that <br />shown on Map 2.05.3(3) -3. This item has been resolved. <br />