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COLORADO <br />Division of Reclamation, <br />Mining and Safety <br />Department of Natural Resources <br />1313 Sherman Street, Room 215 <br />Denver, CO 80203 <br />February 26, 2015 <br />Chris Gilbreath <br />Tri-State Generation and Transmission Association, Inc. <br />P.O. Box 33695 <br />Denver, CO 80233-0695 <br />Re: New Horizon 2 (Permit No. C-1981-008) <br />Technical Revision 65 (TR -65) <br />Adequacy Review 1 <br />Dear Mr. Gilbreath: <br />We received your technical revision application (TR -65) regarding the addition of the BB Detour Road on the <br />Morgan property to the permit and its subsequent reclamation. The revision was received on January 26, 2015 <br />and it was deemed complete on February 2, 2015. The following issues have identified and need additional <br />attention: <br />2.04.3 — Site Description and Land Use Information <br />1. The text at the top of revised page 2.04.3-5 is not consistent with the text at the end of page 2.04.3-4 of <br />the current permit. Please revise so the discussion started on page 2.04.3-4 continues on to revised page <br />2.04.3-5. <br />2.04.9 — Soils Resource Information <br />The revised page 2.04.9-30 is mislabeled and should be page 2.04.9-31. This is consistent with the <br />current permit pages. <br />2.05.3(3) — Mine Facilities <br />1. On page 2.05.3(3)-41 of the permit, it states that a proposed hayshed will be constructed by the property <br />owner near pond 007 as a permanent structure. This statement has been omitted on the revised page <br />2.05.3(3)-41. Please explain why this statement has been omitted. <br />2. The revised Map2.05.3(3)-1-2 Post Mine Surface Water Hydrology has a different post -mining <br />topography on the WFC (Johnson) and WFC (Lloyd) properties than the currently approved map. So <br />that we may expedite the approval of TR65, please change the topography in this area back to the <br />currently approved layout. If WFC wishes to change the PMT of this area, please submit the changes <br />for review in another technical revision. <br />1313 Sherman Street, Room 215, Denver, CO 80203 P 303.866.3567 F 303.832.8106 http://mining.state.co.us <br />John W. Hickenlooper, Governor I Mike King, Executive Director I Virginia Brannon, Director <br />OF' COL <br />1876. <br />