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only used for a short time. At the end of the first summer of construction, the construction trailers were <br />moved to the D Portal Area and the area reclaimed. The gravel surfacing was removed, the site <br />regraded and the topsoil redistributed. The topsoil was mulched and reseeded in accordance with the <br />Revegetation Plan approved at that time. <br />Prior to commencing grading work, trees and brush were cleared and available topsoil stripped and <br />sorted for future reclamation. Topsoil thickness, locations, and quantities, are shown on Map 28 for the <br />D Portal Area. No topsail was stripped at the Ventilation Entry Area as most of the surface soils are <br />intermingled with mine spoil and coal from the previously existing Staley Gordon Mine. <br />All fill slopes are 2h:1v except for the East Portal Area. This slope was used because the cut material <br />available was mostly rock fragments mixed with enough soil-type material to achieve 90 percent of <br />maximum compaction. The East Portal pad was constructed by using a fill slope of 1.5h:1v to avoid <br />disturbing the Scullion Gulch Drainage channel. Fill material for these slopes consisted of rock <br />fragments that are stable at this slope. The ground was plowed, stepped, or, when in rock, keyed as <br />required to increase the stability of the fill. The East Portal area was also widened and expanded for <br />storage as well as improved access (see Map 139). The East Portal Area fill work in July 1989 was built <br />at a slope of 2h:1v and did not disturb the Scullion Gulch drainage channel. All fills were constructed in <br />compliance with Rule 4.09.1. Fills in the disposal area are 5h:1v and comply with Rule 4.10.4. <br />Construction of rock fills and embankments was similar to that discussed in Section IV.D.2 for the haul <br />road. <br />• Cuts for roads have slopes of 1.5h:1v in unconsolidated materials and 1h:1v to .25h:1v in rock. Their <br />design and construction comply with Rule 4.03.1(3)(d). Cross-sections for the roads are shown on Maps <br />35, 52, 68 and 139. <br />Cut slopes in the D Portal Areas (see Map 33 and 33A) are 1.5h:1v in all unconsolidated materials and <br />in the deep cuts on the southwest side of the plant site. Rock cuts on the northeast side of the gulch at <br />the plant site are 1h:1v to .25h:1v. The design and construction of these cuts comply with Rule <br />4.03.1(3)(d). All cut and fill slopes were subject to change based on actual conditions encountered <br />during construction. <br />The grading plan indicated the amount of cut material was approximately equal to the fill material <br />requirements for site and road construction. See Table IV.I-1. During construction, the grading plan was <br />adjusted to achieve a balanced situation by varying the size of the storage area northwest of the coal <br />storage silos and varying road elevations. <br />There were no slides or slope failures that may have had an adverse effect on the public property, health <br />or safety. Thus, reporting by the mine operator to the regulatory authorities was not necessary. The <br />operator would have complied with the remedial measures required by the authority. <br />Mine Permit Renewal #3 (Rev. 11/99) IV-34 <br />