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box cut that is disturbed twice during the excavation process, and cannot be final graded until excavation advances away from the box cut area. Surface mining with a dragline progresses in a logical repetitious sequence: the dragline opens a pit luncovers/exposes coall, the overburden is placed in the previous mined pit, the coal is removed, the current highwall is drilled and blasted, the dragline begins again and uncovers another pit width of coal. This process is repeated until all the coal has been recovered. This mining process/sequence does not allow more than one pit width to be open at a time. There may be single pits open in more then one mining area, but physically there can't be more than one pit width open in a single mining area. However multiple spoil ridges may be present in each mining area depending on the reclamation (rough grading) sequence. Further discussion of this situation is presented in Tab 12 and 20. In order to achieve the designed postmining landform, the necessary backfill material must be available to perform area grading on internal spoil. Generally, adequate material will not be available until mining has resulted in development of at feast two spoil ridges behind the advancing pit. Tab 20 discusses the area grading concept. When the pit configuration is regular le.g., typically, interior spoilt, and where sufficient area is available to perform "area grading", SCC will conduct backfilling and grading activities on areas beyond two spoil rows from the active pit. Typically, it will take approximately 90 to 120 days to cycle the dragline from one end of the coal field and back during the permit term; however, due to coal market and operation considerations, it is periodically required to also cycle the dragline from the south to the north and back. This could add 60 to 90 days to the dragline cycle before a single spoil row is created. Therefore, due to the depth of overburden, and configuration and length of the pit, it could take over one year to generate four spoil rows. Four spoil peaks will also be created by other mining situations. First, in certain locations such as along the ramps and the haul road, in the box cut spoil area, along certain inside or outside curves, along irregular coal recovery areas, areas with short pit lengths and adjacent to facilities areas, it could take more than four spoil rows to create sufficient spoil area to allow final grading to "daylight" and blend into the surrounding topography. Second, in some cases, the box cut spoil material is required to be dozed or hauled forward into the mined area. In this case, the pit progression must move ahead more than four pit widths and the coal must be removed before the spoil can be excavated and graded to its final configuration. Ramps, roads, or facilities must no longer be required for the mining operation before they can be removed or relocated and the adjacent spoil excavated to final grade. Lastly, the completion of backfilling and grading of final highwalls may require up to two years following coal removal. This is due to the larger operational area required for highwall reduction as opposed to interior spoil grading. SCC proposes to utilize the general backfilling and final grading sequence illustrated by Exhibits 19-1 and 79-1A and the reclamation schedule shown on Table 19-1 to achieve the proposed postmining topography shown on Exhibits 20-2 and 20-2A. In summary, the annual projection of areas graded are based upon certain considerations. First, approximately two spoil rows are normally graded simultaneously, once pit development establishes asteady-state configuration, to achieve the desired postmining .land configuration and to effectively maintain topographic continuity between grading sequences. PR03 5 Revised 7/02