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I • Table 2.05-1 presents a general summary of the mining and reclamation activities over the life of the mine <br />permtt. <br />TABLE 2.05-1 <br />MINING & RECLAMATION SEQUENCE <br />Phase Dates Activi <br />Initial 3/78 to 6/78 Construction of mine su ort facilities <br />Block B Develo ment 8/78 to 6/79 To soil removal from initial mine cut & s oil ile area <br /> 12/78 to 1982 Overburden removal & dump construction (7,500,000 c.u. <br />ds. laced in dum <br />Block 8 Minin 1982 to 1986 Overburden removal, backfillin & ratlin <br />Phase 1 Reclamation 1982 to 1986 Concurrent backfillin & rou h radin <br />Phase 2 Reclamation 1986 Final grading, topsoil replacement & revegetation of mine <br />it area <br />Phase 3 Reclamation 1987 Mine facilities area final reclamation & mine reclamation <br />maintenance <br />Phase 4 Reclamation 1987 to 1997 Monitoring, maintenance & minor repairs <br />In general, mining progressed from the north to south using an azea strip ttuning method. The five coal <br />seams mined were on sepazate benches such that more than one seam could be mined at a time. During <br />the life of the mine, the highwall advanced towazd the east and south. <br />Overburden was removed by breaking and hauling material Etom the pit with twin engine scrapers, a <br />hydraulic excavator and 50 ton reaz dump tracks. Rubbilization resulted in angular fragments of rock, <br />making it impossible to restore the material to its original laminar nature. Disposal of excess overburden <br />required development of a spoil pile northeast of the pit area, part of which was left as a permanent spoil <br />. pile in accordance with the approved reclamation plan. <br />The sequence of mining was based on maintaining a constant stripping ratio. In order to maintain a <br />balanced stripping ratio, a minimum of two cuts must be mined simultaneously. This technique allows <br />for pre-stripping high ratio cuts when coal production is from low ratio areas, and allows for blending <br />and recovery of the lower quality coal seams which by themselves could not meet minimum quality <br />standards. <br />Approximate annual coal production over the mine life was: <br /> <br />Year Tons Produced <br />1979 381,955 <br />1980 554,490 <br />1981 847,167 <br />1982 583,186 <br />1983 454,842 <br />1984 439,595 <br />1985 500,000' <br />1986 500.000' <br />TOTAL ®4,200,000 <br />' ProduMion rates projected in 1985 <br />2.05-2 Revised - OG/Ol <br />