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• Introduction Mine water inflow results were consistent with the predictions presented in the mining permit application. Discharged Water The D-Seam mine began discharging inflow water at a rate of approximately 5 g.p.m. from the underground workings during the fourth quarter of 2002. This water is directed from the portal areas to Sedimentation Pond C. The estimate of mine water inflow during the first two months of 2004 is about 25 g.p.m. When D9 panel was complete early in March 2004, dewatering of the D-Seam ceased, Mining in the B-Seam began in January, 2004. Water was encountered as the tunnels were excavated to provide access to the B-Seam in late 2003 and water continues to be encountered. During 2004 it is estimated the B-Seam produced about 15 g.p.m. There are no specific point sources in the D-Seam or B-Seam. Water inflow into the mine is associated with sandstone channels or fractures in the roof or flow from fractures in the floor. The pattern of water inflow is one of steadily decreasing flow as the face mines through an area and advances away from it. Most areas dry up completely within several weeks of being mined. Where areas don't dry up completely, water inflow subsides to less than 1 gpm per 30 ft of entry to a few areas with 1-3 gpm per 30 ft of entry. These represent "damp" to "light drippers" as defined by NIOSH in their Coal Mine Roof Rating System. A very few areas are classified as "heavy drippers" with a flow of 3-12 gpm per 30 ft of entry. All the "dripper" areas are associated with roof • sandstone channels and channel margins. Consumptive Use The Bowie No. 2 Mine extracts dust suppression and sanitary water from the Deer Trail Ditch via a pump station located on the Deer Trail ditch as shown on Map15-1 of the permit application. The pump station is metered. This meter records the consumptive use of water from the Deer Trail Ditch. During the 2004 calendar year, the Bowie No. 2 Mine consumed 208.9 AC- FT of water in order to produce 4,683,000 tons of coal. Pond evaporation is estimated at 3.8 AC-FT per year. The addition of the estimated pond evaporation to the mine consumption produces a consumptive use of 212.7 AC-FT of water for the 2004 year and is less than the estimated 326.7 AC-FT indicated in the permit application. This usage indicates that water for dust suppression and fire prevention and coal preparation at the Bowie No. 2 Mine is currently averaging approximately 45.4 AC-FT per million tons of coal. Conclusions Based on mine discharge during 2004, Mine Water Inflow was less than 20 gallons per minute. Approximately 130 gallons of water per minute are introduced from the Deer Trail Ditch. Any sudden increase in mine inflow values could be reasonably incorporated into the dust suppression process.