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General Grading Requirements <br />Final Graded Slopes Post - mining slopes will not be uniform but will approximate the general <br />nature of the pre- mining topography and the post mine land use. All highwalls will be eliminated <br />and graded to a 5H:1 V slope or flatter. Minor areas on the north limit of the amendment area have <br />slopes greater than 3H:1 V. These slopes will be restored to approximate original contour. <br />Terraces Terracing in the final reclamation is not proposed at the New Horizon Mine. <br />Small Depressions Small depressions are not proposed at the New Horizon Mine with the <br />exception of the restoration of the depression at Pond 014. The pre -mine landscape shows this <br />depression. After mining, this depression is restored and Pond 014 no longer exists. This pond <br />handles a small drainage area which flows into the depression. <br />Steep Slopes New Horizon Mine does not have steep slopes as defined in the regulations. <br />Final Gradino Final grading and preparation of the backfilled material before placement of topsoil <br />material will be done along the contour to minimize subsequent erosion and instability. If such <br />grading is hazardous to equipment operators, then grading will be done in a direction other than <br />generally parallel to the contour. <br />Final Pit Backfillino The final pit is located at the western edge of the permit area on Western <br />Fuels property. In order to eliminate any final highwalls and to achieve grading that is conducive <br />to the post mine land use, all stockpiled highwall material will be pushed or dozed into the final <br />mined area. Map 2.05.4 -1 shows cross sections of the fill material placed into the mined pits. <br />Material above the final highwall may be blasted or ripped and then graded to blend into the <br />surrounding topography. <br />Western Mining Area Backfillino The post mine topography of the western mining area of New <br />Horizon #2 Mine near Nucla, CO will be a combination of approximate original contour (Morgan, <br />Benson, and Lloyd land) and modified original contour (Western Fuels land). This can be seen on <br />Map 2.05.4 -1. The modified original topography on the Western Fuels owned land is due to backfill <br />(Revised June 2010) 2.05.4(2)(c) -5 <br />