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Ingoing Water The production equipment utilizes water for dust control and cuttings <br /> removal in roof bolting. Water used by equipment is based on 333 shifts worked by <br /> continuous miner sections and 366 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.C-1 on page II.C-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 398,010 cubic feet per minute. <br /> TABLE 2-2 <br /> MINE WATER BALANCE <br /> WATER IN GALLONS/YR GALLONS/MIN <br /> Production Equipment 43,128,000 82.05 <br /> Ventilation Humidity 8,468,149 16.11 <br /> Underground Storage of Thickener Water 0 0.0 <br /> Incidental (pipe leaks, road watering, wash down) 4,312,800 8.21 <br /> TOTAL 55,908,949 106.37 <br /> WATER OUT <br /> Coal Surface Moisture 17,838,228 33.94 <br /> Ventilation Humidity 17,661,030 33.60 <br /> Pumped Out—B-Seam 30,038,400 57.15 <br /> Pumped Out—D-Seam 68,993,152 131.27 <br /> TOTAL 134,530,810 255.96 <br /> Net Water Pumped Out 78,621,861 149.59 <br /> Water pumped from B seam to D seam 0 0 <br /> No thickener water was transferred underground for storage during the reporting period. <br /> This number is based on operational knowledge of the tons washed and other factors <br /> such as the type of clays encountered, processing equipment efficiencies, etc. As the belt <br /> presses were in use during the entire reporting period, no thickener water was stored <br /> underground during the reporting period. <br /> 9 <br />