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• 2.05.3 <br />pillars left for protection. Partial pillar recovery of all workings and barrier <br />pillars will go onto the extent allowed by safe mining and surface protection <br />concerns. <br />The main entries will be developed down dip in a northerly direction. <br />Submains will be extended both westerly and easterly from the mains. <br />Panels will be driven at =90 degrees from the submain entries. Each set of <br />panels will be separated from the adjacent panels and submains by barrier <br />pillars. <br />Longwall mining faces will be developed as long as possible and 800 to <br />1,000 feet wide. Gates entries will typically be developed with three entries <br />with pillar spacing and size designed to provide maximum support for <br />ventilation and belt haulage. Bleeder entries will be developed with four or <br />more entries. <br />A fault bisects the private reserve in a northwest southeast direction. The <br />reserves on each side of the fault will be referred to as the east and west <br />• pods. The mine was initially developed in the east pod. <br />The west mains will be advanced to the fault. The operator intends to probe <br />drill ahead of its mining advance in the west mains. The operator can drill <br />180-feet of 2.5-inch diameter probe hole ahead of the workings. The <br />sequence of operations will be to probe drill ahead 180-feet and then <br />advance the mains 90 feet and then probe drill again. Significant quantities <br />of water in the fault, if any, will be detected by the probe drilling. Packers <br />with valves can be installed in the probe holes to control or stop the water <br />flow. If necessary, the fault will be drained by drilling an array of probe holes <br />into the water bearing zone. <br />After the water is controlled and the fault is evaluated, rock entries will be <br />developed though the fault to access the west pod. The west pod is an <br />estimated 35-feet above the east pond. Three rock slopes will be excavated <br />250-feet to 300-feet long depending on the actual fault displacement and the <br />grade of the rock slopes (12 - 15%). Additionally, two rock raises will be <br />excavated to provide two additional ventilation openings between the east <br />and west pod coal seams. The rock raises will be constructed instead of two <br />additional rock slopes. The rock excavated from the rock slopes will be <br />• permanently stored in rooms excavated specifically for that purpose. <br />PR-06 <br />2.05 - 4 - 8101 <br />A PPRovaO <br />~// 5/o Z <br />