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<br />TABLE i <br />SUMMARY OF DESERADO MINE LOGICAL MINING UNIT COAL RESERVE BASE* <br />(MILLIONS OF TONS) <br />COAL FEDERAL COAL LEASE <br />SEAM C-023703 D-047201 C-8424 C-8425 C-0126669 C-44693 COC 51551 TOTAL BY SEAM <br />J 8.060 1.616 2.770 2.217 0.069 0.290 0.392 14.955 <br />H 5.612 0.209 8.254 2.769 0.126 0.000 0 16.970 <br />G 1.494 0.658 6.669 1.902 0.307 0.320 0 11.350 <br />F 5.406 0.124 3.081 0.533 0.823 0.000 1.612 11.579 <br />E 4.922 0.014 1.305 2.455 0.000 0.000 1.959 10.655 <br />D 32.609 7.495 10.618 6.412 2.817 4.697 17.977 82.625 <br />B 35.923 7.428 52.194 14.302 2.934 3.933 6.607 123.321 <br />ILES 0.195 0.020 7.764 1.789 0.000 0.000 0.036 9.804 <br />TOTAL <br />BY <br />LEASE 94.221 17.564 92.655 32.379 7.076 9.240 28.583 <br />GRAND TOTAL DESERADO MINE LOGICAL MINING UNIT 281.718 <br />*Correlatable Coal Seams >28' to 500' below lowest LMU elevation (4810'); >48' from 500' to 3000' below lowest LMU elevation. <br />Net Coal Thicknesses used 'rf coal:parting ratio is less than 3:1 and coal >28'. Thin partings were included in coal thickness. <br />(Rev. 12/91) 5 <br />