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• Old Shop Area (Empire Village)
<br />• Utah Tract
<br />• Miscellaneous Areas
<br />• Multiple Service Buildings
<br />No. 5. Portal Area
<br />The No. 5 Portal Area was initially disturbed in the early 1970's, prior to the amending of Federal laws and regulations
<br />governing mining operations. As such, the surface facilities were initially developed in a manner inconsistent with
<br />today's mining and reclamation practices. Specifically, during the development of the portal area, topsoil was not
<br />salvaged from the site. The deficiency in topsoil was overcome by salvaging additional topsoil during the
<br />construction of the drainage and sediment control system. In addition, up to 24 inches of topsoil was salvaged during
<br />the recent construction of a new shop, the wastewater treatment facility, and the No. 5 and No. 6 mine water handling
<br />system. Please refer to Table 58, Topsoil Replacement - No. 5 Portal and General Area found in Section 2.03.3
<br />Operation Plan, Permit Area, for topsoil replacement volumes. The topsoil salvaged during these most recent
<br />construction activities is presented in Table 68, No. 5 Portal - Recent Topsoil Salvaged Volumes.
<br />The reclamation of the No. 5 portal area will follow the general steps outlined at the beginning of this section, except
<br />as modified, as follows. All structures and facilities will be removed from the site. This will include, but not be
<br />limited to, the removal of the following: railroad tracks, scale -house, coal silo, coal conveying system, rotary breaker,
<br />screening plant, reclaim tunnel, all offices, shop/warehouse, laboratory, bathhouses, rock -dust tanks, electrical
<br />substation, fencing, and the 48 -inch overland conveyor, and associated structures. Mobile trailers (including the
<br />administration office trailer) which were used as offices, have been transported from the site. Any coal remaining in
<br />the stack -tube stockpile area will be removed, loaded into trucks, and hauled to the Foidel Creek Mine. The No. 5
<br />portals have been temporarily sealed by placing an MSHA approved seal in each of the entries comprising the portal
<br />and backfilling a portion of the portal cut. MCM will not place any toxic or combustible material in the portal seals.
<br />The use of non-toxic, non-combustible material will insure that contamination of ground water does not occur. Upon
<br />final reclamation, the remaining portal area will be backfilled as per the following paragraph.
<br />The remainder of the No. 5 portal faceup highwall will be backfilled with the fill material obtained from the railroad
<br />track bed, pad areas around the portal entries, railcar load inglunloading ramps, and any remaining excess material
<br />from the No. 9 portal excavation. The backfilled highwalls will be sloped at approximately 3H:1 V. Trucks and front-
<br />end loaders, graders and dozers will be used in the backfilling operation. Compaction of the backfill material will be
<br />obtained during the backfill process by the trucks, dozers, and graders travelling over the backfilled area. Final
<br />grading of the area will be accomplished in a manner, which will leave the surface in a roughened condition. Dozers
<br />and graders will conduct final grading. The fill material used in the construction of the 210,000 -ton coal stockpile pad
<br />will be spread evenly over the site or used as backfill material for the No. 5 portal area to achieve the planned final
<br />topography.
<br />The entire facility area will be retopsoiled with approximately 6 inches of topsoil or best available plant growth
<br />medium. The redistributed topsoil will be analyzed to determine its fertility and to determine if amendments are
<br />required. The replaced topsoil will be analyzed for nitrogen, phosphorus, and potassium. As shown on the
<br />Reclamation Plan Map (Map 29), the No. 5 portal area will be revegetated to two- (2) land uses. These are 1)
<br />rangelandlwildlife habitat and 2) pastureland (hayland). Sloped areas, such as the No. 5 portal faceup, will be
<br />returned to rangelandlwildlife habitat and therefore, will be seeded with the rangeland/wildlife seed mixture. The
<br />flatter areas will be returned to a pastureland (hayland) land use. Therefore, the topsoil areas will be reseeded with the
<br />pastureland (hayland) seed mixture.
<br />It is anticipated that seeding will be accomplished through the use of a rangeland drill. If it is necessary to broadcast
<br />seed, the seeding rate will be doubled. A straw mulch applied at the rate of two tons per acre will be applied over the
<br />MR18-56 2.05-25 Revised 7:`10.'00
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