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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 D-Seam mine began discharging inflow water at a rate of approximately 5 g.p.m. from <br />the underground workings during the fourth quarter of 2002. This water is directed from the <br />portal areas to Sedimentation Pond C. The estimate of mine water inflow during the first two <br />months of 2004 was about 25 g.p.m. When D9 panel was complete early in March 2004, <br />dewatering of the D-Seam ceased. Mining in the B-Seam began in January 2004. Water <br />was encountered as the tunnels were excavated to provide access to the B-Seam in late <br />2003. During 2004 it was estimated the B-Seam produced about 15 g.p.m. The B1, B2 and <br />B3 panels developed during 2005 and 2006 in the B-Seam were virtually dry. Development <br />in panels B4, B5, and a portion of B-6 developed during 2007 were also considered dry. <br />The B-Seam hit steadily increasing water inflows beginning in 2008. The inflow was <br />predominantly from sandstone channels. As of the end of May 2008, the mine inflow was <br />about one million gallons per day (~700 gpm). Much of the inflow was from sandstone <br />channels around the B-8 panel. As of August 2008 the mine inflow had reduced to about <br />350 gpm. At the end of 2008 the mine inflow had increased to over 500 gpm. The mine <br />inflow was recorded at 340 gallons per minute based on a July 2009 mine inflow report. <br />During 2009 the water produced in the mine was stored in the mined out B-1 through B-3 <br />panels and discharged through outfall 006. Discharge from outfall 006 at times approached <br />1,000 gallons per minute. Average discharge from outfall 006 was 210 gpm. <br />Up through 2006 there have not been any specific point sources in the D-Seam or B-Seam. <br />Water inflow into the mine was associated with overlying igneous sills, sandstone channels <br />or fractures in the roof or flow from fractures in the floor. Water often enters the mine in a <br />newly mined area by dewatering the coal seam adjacent roof or floor. These sources of <br />mine inflow usually dry up within one to two weeks The minor amount of water resulting from <br />dewatering of the coal roof and floor indicates that the coals and the overlying and <br />underlying strata in the Mesaverde Formation have very low permeabilities. The pattern of <br />water inflow is one of steadily decreasing flow as the face mines through an area and <br />advances away from it. During 2007 the operator did not monitor any point sources of mine <br />inflow. During 2008 and 2009 point sources of mine inflow were monitored. <br />During 2010 the mine abandoned the northeast area of the mine and began mining to the <br />west. There have not been any significant mine inflows in the mine plan area west of Terror <br />Creek. <br />Consumptive Use <br />The Bowie No. 2 Mine extracts dust suppression and sanitary water from the Deer Trail <br />Ditch via a pump station located on the Deer Trail ditch as shown on Map15-1 of the permit <br />application. <br />1 <br />