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TABLE 2-2 <br />MINE WATER BALANCE <br />WATER IN GALLONS/YR GALLONS/MIN <br />Production Equipment 35,773,200 68.06 <br />Ventilation Humidity 8,842,770 16.82 <br />Underground Storage of Thickener Water 3,850,000 7.32 <br />Incidental (pipe leaks, road watering, wash down) 3,577,320 6.81 <br />TOTAL 52,043,290 99.02 <br />WATER OUT <br />Coal Surface Moisture 24,368,786 46.36 <br />Ventilation Humidity 18,442,334 35.09 <br />Pumped Out 0 0 <br />TOTAL 42,811,119 81.45 <br />Water Left Underground 9,232,171 17.57 <br />Water pumped from B seam to D seam 7,358,400 14 <br />Thickener water transferred underground for storage was estimated at 3,850,000 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 />The smallest quantity of water entering the mine is the incidental category. This category <br />includes leakage from water lines, dust control watering in the haulage entries, and <br />washdown water used in the slope and other locations. It has been assumed that 10% of <br />the water used for production equipment will be used under this category. <br />Outgoing Water As coal is mined, water is added by dust control sprays on the <br />continuous miners, the longwall shearer and at transfer points along the conveyor belt <br />system. This water is then carried out of the mine as surface moisture on the raw coal. <br />This added coal surface moisture represents a 4% increase in the raw coal moisture <br />content. The raw coal tonnage produced during this reporting period was 2,543,492 tons. <br />Water leaving the mine as ventilation humidity represents a large quantity in the water <br />balance. The temperature of the exhaust ventilation air is almost constant, at 60° F. <br />9