ENFORCE24827 - Laserfiche WebLink

Home Browse Search

COti90LIDA7I03i CCAL ~. 6 CH 94-6-A higher than pre-mining topography. Slopes era steeper now than is pre-mining conditions. There are a considerable number of 70 perasnt elopes in the southern part o! the ditch. Pra-mining elopes were ao mots than 10 percent (Tr, 99-114). The witness testi£isd that hie ofliae was xisver satisfied that AOC.had been achieved (Tr. 117). Da cross examiaatioa, Behum said he had studied Ditch A-1 and thn immediate aurrouading topography, but had not dose any engineering aalculationa on drainage capability. There is ao topographic abatruction around the ditch, which Behum said was approximately 1,6D0 feet long (Tr. 119-14). Oa re-direct the witness stated that Consolidation had several nlternativee when locating the ditch (Tr. 125-16). beanie J. 6saith, a project engineer with Consolidation, teetilimd for the Applicant. Be wan employed at Horning Star Mica from May o£ 1985 to Agril o! 1988, He was responsible !or permit No. 158, which is a eombiaation o! three older permits. The site contains two mina-nut lakes. Thn eaetesa half of Permit 121 and Permit 149 is 4 lloodplain. Pre-mixing drainage travele8 through the slope areas from thv western aide o! the permit sad ended in the flocdplaia. It then entered Cow Creek, the pre- mising atraam in Permit 149. (Applicant's Exhibit 9). The relocated stream waa channeled further south rhea the original stream (Tr. i17-33). To raatore the floodplaia, the Applicant zsawved pit sad spoil at the east end of the Held to maintain pre-mining alevationa. Ploodiag upstream could be ao more thaw one half foot. Hieing proceeded to the west to eaabl• the Applicant to Garry some of the material to the want side !or floodplaia restoration. The higher elevation on the western aide of the , permit is oleo dos to Use stripping from the Dearer o£ the incline to the sad of the pit. .'There wan mots hard material is the west end o! the pit sad the west end coal was located deeper in the earth (Tz. 134-37}. Miaiag produced approximately seven million cubit yards of extra overburden resulting from swell (Tr..138-39). The volume o! the material was more thaw eullicieat to restore the area to its original pre-miriiaq topography. Tha seven million yards of aWtarial would normally fall out over the permit area, particularly is the hox cut spoil aafl pit and spoil (Tr. 140- 41). The Applicant Mss required to restore the capability of the laced as it existed pre-mining. Reclamation pleas moat rellect the rsatoration o! high eapabiliey lead sad prima farm lead: elopes la these areas csaaot ba more than live peroeot slope.