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• 2.05.3 page 3 <br />With the exception of the tipple and the main fan construction site, the remaining facilities have <br />been erected upon the natural (original) contours of 3: l slopes. A 1.5:1 sloped highwall was cut to <br />provide a bench for the main fan and the tipple area. The tipple sets at the outcrop of the coal seam <br />being mined. A third highwall exists directly south on the mine property with a slope of 1.5: 1. The <br />bench created by the earth work here is site for the shop structure erected in 1981. <br />The highwalls and the back-filled gully are shown on Map C-4 and are included within the <br />boundaries of the surface disturbed area of 10.88 acres. <br />Spoil material from the earth worked areas will remain in the southeastem gully. Diversion <br />channels (See Map C-4) will divert the up-slope nmoff around the disturbed areas. The reclamation <br />plan calls for utilizing the soil stored in [he southeastern gully and re-vegetating these areas upon <br />abandonment of the mine. <br />MINE WASTE ROCK DISPOSAL <br />During normal underground mining operations, shale and sandstone break away from the roof <br />and floor of the coal seam. This material is removed from the mine and placed in the existing mine <br />waste (refuse) storage area. All mine refuse is being constructed into a waste bank. Coal mine waste <br />(refuse) storage area has increased approximately 500 yd' per year. As of October 1997, 25,000 yd' <br />exists. Anticipated refuse production from 1998 through 2002 is approximately 5000 cubic yards per <br />year. The waste bank is currently designed to accomodate up to 1,000,000 yd'. Details of design and <br />construction are given in Appendix 7 and are entitled Waste Bank Design Summary Reoort , <br />November 1993, revised December 1997, by Don R. May, P.E. The location of the proposed mine <br />waste storage area is shown on Map C-4 and Mine Waste Pile Design, Plan Layout and Detail Sheet. <br />Standard Proctor tests and nuclear density tests will be performed as detailed in Don May's <br />aforementioned report to ensure [hat the waste pile continues to meet the designed compaction <br />requirements. Should different types of strata be encountered during mining, these tests will be <br />repeated to ensure [hat no significant changes in compaction are allowed. <br />Some sloughing occurs to the west of the shop near an abandoned portal. This sloughing is <br />periodically cleaned up by surface personnel and is added to the waste pile. <br />HAUL ROAD CERTIFICATION <br />The haul road which provides access to the surface facilities of the mine has been certified by <br />Don May. P.E.. This certification is included in Appendix 7. <br />STEEP CUT SLOPE CERTIFICATION <br />The steep cut slope located just south of the shop area has been certified by Don May, P.E.. <br />This certification is included in Appendix 7. <br />DESIGNED STRUCTURES <br />All designed hydraulic and wastepile strictures located within the permit area have been <br />designed by Don May, P.E., and are included in Appendix 7 and Appendix 8. <br />• <br />January 1998 <br />