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' Kathy Welt, MCC <br />July 20, 1998 <br />' Page 4 <br />inspection by Christine Johnston in August 1995 documented a high TDS inflow in the <br />' drawdown tunnel that Basil Bear thought was from the Windjammer (or Edwazds) Mine. <br />Per Bear's contractor, this inflow continued during the demolition and reclamation of the <br />tunnel and was pumped out with a sump pump and directed to their pond. <br />Next, Jon Jones gave a brief overview of the new information obtained and the refined <br />analyses conducted since the last communication with CDMG. Specifically, there were <br />seven key points: <br />1. Observations and reports of fractwes containing water in the Beaz Mine by Mark Scanlon <br />' were located. This information documents historical water encounters. <br />2. MCC personnel were interviewed regarding their visit to the Bear Mine in 1994. During <br />' this visit, Bear indicated that they had encountered poor roof conditions and water <br />problems in the southwest part of the mine. <br />' 3. MCC obtained detailed electronic mapping of the Bear No. 3 Mine that was previously <br />unavailable. This greatly facilitated WWE's flow path analyses within the Beaz Mine. <br />' 4. Based on Bear's reported inflow locations and the detailed mapping of the mine contours, <br />the flow path of the actual, observed inflows was determined (i.e., flow by gravity along <br />the dip to the northeast). <br />' S. Additional empirical evidence supporting the tightness of the B-Seam coal has been <br />obtained. Specifically, the horizontal drill hole from the NE Panels to the NW Panels <br />' showed only 17 feet of water movement over more than a year. In conjunction with the <br />other evidence of low permeability, this is quite compelling. <br />' 6. Numerous interviews with key operations personnel have resulted in a clearer and more <br />detailed understanding of the chronology and water management in the West Elk Mine. <br />' 7. Additional hydraulic analyses of potential sump outflows were performed looking at <br />specific locations during key time periods. <br />t Jonathan Kelly followed Jon Jones' overview by providing the results of the new analyses <br />and referencing the exhibits. A brief description of each of the exhibits follows: <br />' Exhibit l: A map of MCC's longwall panels 1NW through 7NW and the Beaz No. 3 <br />Mine workings. Shaded azeas on the exhibit include purple areas that <br />represent ]0 acre-feet of storage volume, blue azeas that represent 30 acre-feet <br />' of storage volume, and a green area that represents the NW Panels sealed <br />sump at full capacity (roughly 375 acre-feet). The exhibit also shows the flow <br />paths for water originating at key locations as described below. Other features <br />' on this exhibit aze discussed below. <br />Exhibit 2: A bar graph comparing the observed inflows to the Bear No. 3 Mine and the <br />maximum potential outflow from MCC's NW Panels. <br />