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A maximum of approximately 1.0 million cubic yards of uncompacted refuse was previously pemutted to be temporarily stockpiled in a surge pile at the south end of the refuse azea on an area where the topsoil has been removed. Actual maximum placement in this area has been approximately 400,000 cubic yards and this volume • has been reduced to approximately 80,000 cubic yazds by dozing stockpiled material to an adjacent permanent refuse disposal area. Once the remaining stockpiled material is removed and placed in permanent disposal azeas, TCC has no future plans to utilize this azea for temporary stockpiling (other than the temporary winter stockpiling, as discussed below). Stockpiled materials are transferred, placed, and compacted on active portions of the refuse area. As the stockpiled material is moved and placed, during the summer construction season, any underlying spoiUsub-soil material will be recovered and placed on available completed refuse pile bench azeas. During the winter, up to 300,000 cubic yards of material maybe tail-dumped on active portions of the refuse pile for temporary storage. In the spring, once any frozen materials aze thawed so that effective compaction can be achieved, the piles will be spread and compacted as the next lift on the active pile area(s). The pile will be constructed in 50-foot benches, as originally planned, and drainage will be established off of the pile as presented in Exhibit 26A. 2) Vertical Construction -This segment has been clarified to remove the requirement to construct "A" and "B" segments as proposed in Exhibit 26A. The recommendation presented in Exhibit 26A-1 to compact the entire lift as one unit without dividing it into segments will be followed. This will increase the stability of the fill by removing the potential for establishing a slip plane between segments A & B. As noted in Exhibit 26A-1, the two-segment construction was for "zoned construction" and this is not required for smaller piles. 3) Temporary Road Construction -The temporary road will be filled in with refuse material, as per the recommendation in Exhibit 26A-1, when it is no longer required. The recommendation includes benching and tying in with existing refuse pile to the north and south of this road. 4) Subsurface and Surface Drainage -Small drainage ditches will be constructed downslope of the temporary stockpiles to minimize water running over and down finished slopes of the RDA. Also, it was recommended in Exhibit 26A-1 that temporary drainage ditches be established along the eastern edge of the benches as they aze • constructed, to prevent excessive surface runoff from flowing over the finished/compacted slope of the RDA. The specific recommendations for these temporary drainages aze presented in Exhibit 26A-1. During the construction of the RDA, non-toxic material will be excavated from an azea within the footprint of the pile. This material will be used in conjunction with the existing topsoil to provide a 4-foot covering of non-toxic material over the RDA. The excavated material will be replaced with compacted refuse material, which will serve to increase the capacity of the RDA without increasing the physical dimension of it. The excavated material may be temporarily stockpiled within the footprint of the RDA or placed in the existing stockpile to the south of the low quality coal stockpile. Concerning the Fish Creek Tipple, no excess spoil or underground development waste will be generated in connection with the operation. Thus, the requirements of this section and Rule 4.09 aze not applicable. {9) Return of Coal Mine Waste to Abandoned Workings {a) Each plan shall describe the design, operation and maintenance of any proposed coal processing mine waste disposal facility including flow diagrams and any other necessary drawings and maps which must meet the standards of 2.10, for the approval of both the Division and the Mine Safety and Flealtlr Administration in accordance with 4.11.3. (b) Each plan shall describe the source and quality of waste to be stored area to be backfilled, percent of the mine void to be filled method of constructing underground retaining walls influence of the backfilling onemtion on active underground mine operations surface area to be Supported by the backfill and the anticipated occurrence of surface effects following backfilling. (c) The annlicatrt shall describe the source of hydraulic transport medium method of dewatering the placed backfill retaimnent of water underground treatment o1' water if released to surface streams, and the eft'ect on the hydrologic regime. TROS-49 2.05-97.1 09/22/05