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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 was directed from <br />the portal areas to sedimentation pond C. The estimate of mine water inflow during the first <br />two months of 2004 was about 25 g.p.m. When D9 panel was complete early in March <br />2004, dewatering of the D -Seam ceased. Mining in the B -Seam began in January 2004. <br />Water was encountered as the tunnels were excavated to provide access to the B -Seam in <br />late 2003. During 2004 it was estimated the B -Seam produced about 15 g.p.m. The B1, B2 <br />and B3 panels developed during 2005 and 2006 in the B -Seam were virtually dry. <br />Development in panels B4, B5, and a portion of B-6 developed during 2007 were also <br />considered dry. The B -Seam hit steadily increasing water inflows beginning in 2008. The <br />inflow was predominantly from sandstone channels. As of the end of May 2008, the mine <br />inflow was about one million gallons per day (-x700 gpm). Much of the inflow was from <br />sandstone channels around the B-8 panel. As of August 2008 the mine inflow had reduced <br />to about 350 gpm. At the end of 2008 the mine inflow had increased to over 500 gpm. The <br />mine inflow was recorded at 340 gallons per minute based on a July 2009 mine inflow <br />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 had 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 and floor. Water often enters the mine in a newly mined area by <br />dewatering the coal seam. These sources of mine inflow usually dry up within one to two <br />weeks. The minor amount of water resulting from dewatering of the coal roof and floor <br />indicates that the coals and the overlying and underlying strata in the Mesaverde Formation <br />have very low permeability. The pattern of water inflow is one of steadily decreasing flow as <br />the face mines through an area and advances away. During 2007 the operator did not <br />monitor any point sources of mine inflow. During 2008 and 2009 point sources of mine <br />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 />