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Introduction <br />Mine water inflow results were consistent with the predictions presented in the mining permit <br />application. <br />Discharged Water <br />The mine began dischazging inflow water at a rate of approximately 5 g.p.m. from the <br />underground workings during the fourth quarter of 2002. This water is directed from the portal <br />areas to Sedimentation Pond C. Water inflow into the mine is associated with sandstone channels <br />or fractures in the roof or flow from fractures in the floor. The pattern of water inflow is one of <br />steadily decreasing flow as the face mines through an area and advances away from it. <br />Most azeas dry up completely within several weeks of being mined. Where areas don't dry up <br />completely, water inflow subsides to less than 1 g.p.m. per 30 feet of entry to a few azeas with 1-3 <br />g.p.m. per 30 feet of entry. These represent "damp" to "light drippers" as defined by NIOSH in <br />their Coal Mine Roof Rating System. <br />Sumps <br />Various underground sumps were located during this inspection. Mine officials reported that <br />these sumps and their contents were the results of machinery washing and recovered water from <br />belt conveyors where water is applied to allay respirable dust at coal transfer points. <br />• These belt line and wash bay sumps held insignificant water and were not tested. The Main Sump <br />is currently being fitted with a flow meter and will provide quantitative parameters for the 2003 <br />i Mine Inflow report. <br />Other Water Sources <br />A visual inspection of the lower entry of both the Main North Entries and gate entries of both the <br />D5, D6 and D7 longwall panels verified the existence of light `drippers' which produced some <br />pooling of water along the travelways or beltlines. This water was directed through pumps and <br />piping to the Main Sump for dischazge. <br />Consumptive Use <br />The Bowie No. 2 Mine extracts dust suppression and sanitary water from the Deer Trail Ditch via <br />the a pump station located on the Deer Trail ditch as shown on Map15-1 of the permit <br />application. <br />The pump station is metered. This meter records the consumptive use of water from the Deer <br />Trail Ditch. During the 2002 calendaz yeaz, the Bowie No. 2 Mine consumed 198.36 AC-FT of <br />water in order to produce 5,386,000 tons of coal. Pond evaporation is estimated at 2.95 AC-FT <br />per yeaz. The addition of the estimated pond evaporation to the mine consumption produces a <br />consumptive use of 201.31 AC-FT of water for the 2002 yeaz and is less than the estimated 234.6 <br />AC-FT indicated in the permit application. This usage indicates that water for dust suppression <br />and fire prevention at the Bowie No. 2 Mine is currently averaging approximately 36.4 AC-FT per <br />• <br />