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• ; <br />1 <br />• <br />Mining began in 1993 and will carry on through at least 2012. The coal quantities required from <br />the New Horizon Mine under Western Fuels-Colorado's contract to supplyTri-State Generating and <br />Transmission Associations' Nucla Station are estimated to be from 320,000 to 460,000 tons per <br />year. For purposes of this permit application, the maximum rate of 460,000 tons per year was <br />assumed. W henever possible overburden stripping and coal loading will be sequenced to maintain <br />an in-pit inventory of approximately one month's coal requirements. Additionally, overburden <br />stripping and coal loading will be sequenced to allow blending of coal in the pit to enable delivery <br />of relatively uniform quality coal to the power plant. <br />As of the Mid Term Review of 2006, mining and reclamation are currently taking place in Cut 76 <br />through 79. The remainder of this permit term will mine to Cut 89, which occurs in the middle of <br />2009. Another permit term will be needed to complete the mining to Cut 111, which will occur in <br />2012. This is scheduled to be the final cut. <br />TABLE 2.05.2-1 <br />MAJOR MINING EQUIPMENT <br />NEW HORIZON MINE, MONTROSE COUNTY, COLORADO <br />Primar~Excavation Eauiament <br />Hydraulic Shovel: <br />End Dump Truck: <br />Crawler Tractor: <br />Crawler Tractor: <br />Major Suaoort Eauiament <br />Overburden Drill: <br />Wheel Loader: <br />Motor Grader: <br />Water Truck: <br />Revised March 2006 <br />2.045.2-4 <br />(1) 20 cubic yard <br />(3) 90 ton <br />(2) 400 horsepower <br />(1) 770 horsepower <br />(1) 6 3/4" <br />(1) 7 cubic yard <br />(1) 200 hp <br />(1) 9000 gal. <br />