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1 <br />A 10~D percent recovery is expected in the longwall panels since the longwall mining extracts the entire <br />mineable seam height in a solid block of coal. It should be noted that the 100 percent extraction is for <br />the longwall panels only, and does not take into account the coal lefr in the gate entries and baaier <br />pillazs. <br />' The total recoverable reserve in the D and B Seam is estimated at 50,483,000 tons. When compazed <br />with the corresponding total mineable reserve of 155,932,000 tans, the overall recovery from the mine <br />' will be 32.4 percent. <br />43 Coal Reserves By Lease <br />' Western Fuels has estimated the coal reserves for the Deserado Mine logical mining unit by lease. <br />' Reserve estimates have been made for the categories of: coal reserve base, mineable reserve base, <br />recoverable raw coal reserves, and recoverable clean coal. The category of recoverable raw coal <br />reser+es coincides with the category "recoverable coal reserves" as defined in CFR Title 43 S S <br />' 3480.0-5. However, Westem Fuels' product from the Deserado Mine is "recoverable clean coal" for <br />which there is no corresponding category in the Code of Federal Regulations. <br />Westem Fuels has identified eight (8) coal seams which are correlatable over at least a portion of the <br />Deserado mine logical mining unit area. Of the eight seams, only coal contained in the B and D Seams <br />is of adequate thickness over enough areal extent to be considered mineable. Al] reserve estimates are <br />based on a coal density of 84.24 Ibs/ft' or 1834.75 tons/acre foot. <br />' 43.1 Coal Reserve Rase The coal reserve base of the Deserado mine logical mining unit, as defined <br />in CFR Title 43 subsection 3480.0-5, has been estimated for the following eight (8) coal seams: Iles, <br />' B Se:un, D Seam, E Seam, F Seam, G Seam, H Seam, and the J Seam. Reserves (coal reserve base) <br />were estimated for each of these eight (8) seams using the following criteria: <br />• minimum seam thickness of ?8 inches to an elevation 500 feet below the lowest elevation on <br />the Deserado Mine Logical Mining Unit <br />' • minimum seam thickness of 48 inches from a depth of 500 feet to 3000 feet below the lowest <br />' elevation on the Deserado Mine Logical Mining Unit <br />The lowest elevation on the Deserado Mine Logical Mining Unit is 5310 feet above mean sea level. <br />' This point is located along the White River in Federal Coal Lease C-0126669. Therefore, the dividing <br />line for minimum seam thickness between 28 inches and 48 inches is where each seam crosses the <br /> <br />