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borehole has been permanently sealed. The concrete pads have been broken up and properly disposed of. <br />Final reclamation of the thirty-six inch diameter casing involved placing a five foot cement plug at the bottom of <br />the cased hole. The casing was backfilled from the plug to within ten feet of the surface. The top three feet of the <br />casing was cut off and a seven foot cement plug placed in the remaining casing and the remaining three foot hole <br />backfilled with subsoil. The access road was graded to blend in with the surrounding topography and the culvert <br />removed. The ventilation borehole pad and access road were topsoiled and seeded with the appropriate seed <br />mixture. <br />0 Entry Ventilation Shaft <br />The 0 Entry ventilation shaft reclamation work will require building and ductwork removal, tan removal, <br />demolition of foundations, removal of concrete, sealing of shaft, regarding of fan site, replacement of plant growth <br />media. It is anticipated this fan will remain until all mining operations have been completed at the Foidel Creek <br />Mine. <br />Final reclamation of the shaft will involve will involve constructim and placement of apre-fabricated framework of <br />steel support beams, steel composite decking and 4" of concrete to be placed approximately 10' below grade. However, <br />prior to construction of and placement of [he decking the concrete foundation will be brolen up and put down the shaft. <br />The support beams and decking will be suspended from the concrete liner by steel straps (i.e. I-beams or similar support <br />structures) welded to the support beams. The steel straps will be tied into notches cut out of the top ofthe liner. Once <br />this is completed a 24 inch thick reinforced concrete slab will be constructed over the previously placed slab and <br />decking. The void from on top of the concrete slab to within five feet of the surface will be backfilled with fill material <br />(approximately 20 C1~ from the surrounding area. The next two feet of the shaft will then be filled with concrete to <br />form a top plug for the shaft. Fill material will be placed in the remaining three feet of the shaft approximately 22 <br />CY) and then the plant growth media placed over the site. <br />• The ductwork, buildings and foundation materials will be removed and placed in the to be backfilled portal area. <br />The materials will be crushed to minimized the volume to be added to the pit. The materials will then be covered <br />during the backfilling of the facilities. <br />n <br />t, J <br />TR 02-40 2.05-104 1/7/02 <br />