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COLORADO <br />Division of Reclamation, <br />AV Mining and Safety <br />Deoa,tme,it o` Na±uta: Resources <br />1313 Sherman Street, Room 215 <br />Denver, CO 80203 <br />May 24, 2016 <br />Mr. Chris Gilbreath <br />Tri-State Generation and Transmission Association, Inc. <br />P.O. Box 33695 <br />Denver, CO 80233-0695 <br />RE: New Horizon Mine North, Permit No. C-2010-089 <br />2015 Annual Reclamation Report Review <br />Dear Mr. Gilbreath: <br />The Division of Reclamation Mining and Safety (Division) received the 2015 Annual Reclamation Report <br />(ARR) for the New Horizon North Mine on March 16, 2016. The ARR requirements are found in Rule 2.04.13 <br />of the Regulations of the Colorado Mined Land Reclamation Board for Coal Mining. <br />The Division has finished its review of the 2015 ARR. The report was complete and had all the required <br />information. The Division has the following two questions: <br />1. Table 1 of the 2015 ARR shows that 2,693 cy of mixed topsoil was stockpiled in stockpile 4. When <br />this amount is added to the 210,200 cy of mixed topsoil stockpile reported in the 2014 ARR, it is a total <br />of 212,893 cy of mixed topsoil. In the 2015 ARR, mixed topsoil stockpiles 1 and 4 combined have a <br />total of 209,096 cy. Please clarify the 3,797 cy difference of these two topsoil volumes. <br />2. Table 1 of the 2015 ARR shows that no Progresso topsoil was stockpiled. When this amount is added <br />to the 207,400 cy of Progresso topsoil stockpile reported in the 2014 ARR, it is a total of 207,400 cy of <br />Progresso topsoil. In the 2015 ARR, Progresso topsoil stockpiles 2 and 3 combined have a total of <br />114,192 cy. Please clarify the 93,208 cy difference of these two topsoil volumes. <br />If you have any questions or need additional information, please contact me at (303) 866-3567 ext 8142. <br />Sincerely, <br />Brock Bowles <br />Environmental Protection Specialist <br />brock.bowles@state.co.us <br />0�OZ <br />C �, 7 <br />•n C <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. Hickentooper, Governor I Mike King, Executive Director I Virginia Brannon, Director . IR76 « <br />