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• Disposal of Excess Spoil <br />All excavated non-coal material from the mining areas will be used for backfilling the mined pits and <br />blending mined areas into the existing topography to achieve the approximate original landform. <br />Therefore, no excess spoil material will exist <br />Postmining Topography <br />Since mining operations will be performed with shovel/truck and dozers at New Horizon 2 instead <br />of a dragline, the postmining topography was estimated based upon a 15 percent swell factor. <br />Experience from 1995 to 1999 has shown that the initial swell is reduced over time with settling <br />which results in a net change of 8% increase in volume. The need for the slot cut along BB Road <br />and 2700 Road will cause the overburden behind this area to be slightly raised, however, the extra <br />height is still within the limits of approximate original contour. In addition, WFC received a letter, <br />dated 20 September 2002 from San Miguel Power Association, a major NH2 landowner, that the <br />post-mining contouring on their property was acceptable. See Attachment 2.04.(2)(c)-5 for the 20 <br />• September 2002 letter. <br />Map 2.05.4-1 shows the post-mining topography, which is nearly identical to the existing <br />topography. Cross-section locations are also shown on this map. Typical cross sections through <br />the mining areas are shown on Map 2.05.4-1 as well. These cross sections show existing, original, <br />and postmining ground. In the New Horizon 2 area, the mined-out portions of county roads BB <br />Road and 2700 Road (see Map 2.05.3(3)-13) will be restored to its original condition and <br />approximate location as specified by agreement with Montrose County (see Attachment 2.05.3(3)-8 <br />of the Mine Facilities Section. <br />Slides and Other Damage <br />W FC does not anticipate any problems with slides at New Horizon 2 Mine during the term of mining <br />and reclamation activities. <br />• (Revised July 2006) 2.05.4(2)(c)-7 <br />