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AN,COLORADO <br />Division of Reclamation, <br />Mining and Safety <br />Deparment of Natural Resources <br />1313 Sherman Street, Room 215 <br />Denver, CO 80203 <br />May 20, 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 />Minor Revision 93 (MR -93) <br />Adequacy Review 1 <br />Dear Mr. Gilbreath: <br />We received minor revision application (MR -93) regarding the removal of bench 1 material adjacent to Pond <br />011, not applying topsoil to the area adjacent to Pond 11 until Pond 11 is reclaimed and Montrose County <br />Public Works letter authorizing the BB Road be re -opened for public use. The revision was received on May 4, <br />2015 and it was deemed complete on May 14, 2015. The following issues have identified and need additional <br />attention: <br />2.05.3 (3) —Mine Facilities <br />The revised Map 2.05.3(3)-1-2 Post Mine Surface Water Hydrology has a different post -mining <br />topography (PMT) in the area of Pond 13 than Map 2.05.4-1 Existing and Projected Reclamation <br />Contours. Please correct Map 2.05.3(3)-1-2 so that the PMT matches Map 2.05.4-1. If WFC wishes to <br />change the PMT of this area, the proposed changes will have to be submitted for review as a technical <br />revision. <br />2. The letter from Montrose County Public Works states that the BB Road meets the standards of <br />Montrose County and that the New Horizon Mine is authorized to re -open the road for public use. The <br />letter is not clear if Montrose County has assumed responsibility for the maintenance of the road and its <br />associated culverts and ditches. The Division will assume that WFC is responsible for the maintenance <br />of the BB Road west of the 2700 Road until otherwise stated. <br />If you have any questions or need additional information, please contact me at (303) 866-3567 ext 8142. <br />Sincerely, <br />AW�A__L <br />Brock Bowles <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 />