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holes and [he fact that the cuttings will be used to backfill the holes prior to shooting, no further reclamation work <br />• is planned. <br />A temporary crossing of Fish Creek will he required for approximately 2 weeks for this investigation. The <br />crossing will be provided by placing a culvert of adequate capacity to pass [he I-year, 6-hour storm event in the <br />channel. Approximately 33,920 acres in the Fish Creek drainage basin contribute to this point. The peak Flow was <br />determined [o he 7.10 cfs for the I-year, 6-hour storm with a minimum culvert size of 15 inches required to pass <br />dtis flow. Adequate fill material for the anticipated vehicle usage will be provided over the cuh•ert. Immediately <br />after the crossing is no longer needed for operations [he culvert and fill will be removed and fill sloped rounded or <br />reduced and shaped to conform to the site, to adjacent terrain, and [o meet natural drainage restoration standards. <br />Any areas fi'om which topsoil has been removed shall be recovered with topsoil in accordance with 4.06.4(2) and <br />re-vegetated in accordance with 4.15. <br />9 Right Lon~vall Panel -Section 14, TSN,1286W <br />In order to facilitate the progression of mining in [he 9 Right longwall panel, Twentymile will initiate mining as <br />shown on Figure 16F. The longwall will start approximately on April I and complete mining in this limited area by <br />the end of May, barring any unforeseen circumstances. The area to be mined under this revision is contained within <br />[he boundaries of State Lease CO-3229. <br />8 Right Inbv Cross Panel Development <br />The 8 Right Inby development will result in driving three entries, which are located on Figure 16h across the 8 Right <br />panel. The entries will be approximately 18' x 9', totaling 4,275 linear feet. (This includes entries and cross-cuts.) <br />• This development will enhance bodt development mining timing and safety. <br />After file entries have been driven, they will be backfilled with grout, or a similar type of material, prior to being <br />mined through by the longwall. The backfilling will provide support for the longwall when this area is mined by the <br />longwall. <br />7 Right Inbv Cross Panel Development <br />The 7 Right Inby development will result in driving three entries, which are located on Figure 16h across the 7 Right <br />panel. The entries will be approximately 18' x 9', totaling 4,275 linear feet. (This includes entries and cross-cuts.) <br />This development will enhance both development mining timing and safety. <br />After the entries have been driven, they will be backfilled with grout, or a similar type of material, prior to being <br />mined through by the longwall. The backfilling will provide support for the longwall when this area is mined by the <br />longwall. <br />6 Right Inbv Cross Panel Development <br />The 6 Right Inby development will result in driving three entries, which are located on Figure 16h across the 6 Right <br />panel. The entries will be approximately 18' x 9', totaling 4,275 linear feet. (This includes entries and cross-cuts.) <br />This development will enhance both development mining timing and safep~. <br />After the entries have been driven, they will be backfilled with grout, or a similar [}•pe of material, prior to being <br />• mined through by the longwall. The backfilling will provide support for the longwall when this area is mined by the <br />longwall. <br />MR 97-I ~4 2.05-6 Revised 9/9/97 <br />