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Inaoing Water The production equipment utilizes water for dust control and cuttings <br />removal in roof bolting. Water used by equipment is based on 397 shifts worked by <br />continuous miner sections and 306 shifts worked by the longwall. The continuous miner <br />sections use 100 gpm and operate about 4 hours per shift (the rest of the time is spent <br />moving, etc.). The longwall equipment uses 200 gpm of water for about 8 hours per shift. <br />The amount of water entering the mine as ventilation intake air humidity is based on <br />monthly mean temperatures from Table II.0 -1 on page II.0 -5 of the Mining Permit and the <br />yearly mean relative humidity of 56% found on page II.E -1 of the Mining Permit. The <br />absolute humidity, the actual amount of water in the air, is calculated from these data <br />using an average ventilation quantity of 463,253 cubic feet per minute. <br />TABLE 2 -2 <br />MINE WATER BALANCE <br />WATER IN <br />GALLONSNR <br />GALLONS /MIN <br />Production Equipment <br />38,904,000 <br />74.02 <br />Ventilation Humidity <br />9,856,282 <br />1875 <br />Underground Storage of Thickener Water <br />4,000,000 <br />7.61 <br />Incidental (pipe leaks, road watering, wash down) <br />3,890,400 <br />7.40 <br />TOTAL <br />56,650,682 <br />107.78 <br />WATER OUT <br />Coal Surface Moisture <br />22,280,393 <br />42.39 <br />Ventilation Humidity <br />20,556,098 <br />39.11 <br />Pumped Out <br />13,382,690 <br />25.46 <br />TOTAL <br />56,219,181 <br />106.96 <br />Water Left Underground <br />431,502 <br />0.82 <br />Water pumped from B seam to D seam <br />0 <br />0 <br />Thickener water transferred underground for storage was estimated at 4,000,000 gallons <br />during the reporting period. This number is based on operational knowledge of the tons <br />washed and other factors such as the type of clays encountered, processing equipment <br />efficiencies, etc. <br />4 <br />