PERMFILE61656

• Permit No: C1982056
• IBM Index Class Name: Permit File
• Doc Date: 12/11/2001
• Section_Exhibit Name: Exhibit 04e-3 Northern Mining District Subsidence Evaluation
• Media Type: D
• Archive: No

SubTerra, Inc. Twentymile Coal Company 2/10/99
Northern Mining District
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I Table 1 -Predicted Energy Spur Subsidence and Gradient Change
Station North

ft East

ft Predicted
Subsidence
in Gradient
Change
480 45722.13 31609.11 100 -3
479 45817.28 31639.57 100 -6 0.2%
478 45912.52 31670.05 100 -9 0.3%
477 46007.76 31700.53 100 -17 0.7%
476 46103.00 31731.02 100 -27 0.8%
475 46198.24 31761.50 100 -37 0.9%
474 46293.48 31791.98 100 -47 0.9%
473 46388.73 31822.46 100 -56 0.7%
472 46483.97 31852.95 100 -60 0.3%
471 46579.21 31883.43 100 -62 0.2%
470 46674.45 31913.91 100 -62 0.0%
469 46769.69 31944.39 100 -59 -0.2%
468 46864.93 31974.88 100 -54 -0.4%
467 46960.17 32005.36 100 -46 -0.7%
466 47055.41 32035.84 100 -39 -0.5%
465 47150.65 32066.32 100 -30 -0.8%
464 47245.89 32096.81 100 -22 -0.6%
463 47341.13 32127.29 100 -20 -0.2%
462 47436.37 32157.77 100 -25 0.4%
461 47531.62 32188.25 100 -34 0.7%
460 47626.86 32218.74 100 -43 0.8%
459 47722.10 32249.22 100 -52 0.8%
458 47817.72 32278.48 100 -62 0.8%
457 47913.56 32307.01 100 -65 0.3%
456 48009.40 32335.53 100 -67 0.2%
455 48105.25 32364.06 100 -66 -0.1
454 48201.09 32392.59 100 -63 -0.3%
453 48296.94 32421.12 100 -56 -0.5%
452 48392.78 32449.64 100 -49 -0.6%
451 48488.63 32478.17 100 -39 -0.8%
450 48584.47 32506.70 100 -29 -0.8%
449 48680.32 32535.22 100 -22 -0.6%
448 48779.30 32549.38 100 -22 0.1
447 48878.31 32563.40 100 -30 0.7%
446 48977.83 32570.24 100 -41 0.9%
445 49077.83 32570.13 100 -52 0.9%
444 49177.83 32570.01 100 -62 0.8%
443 49277.83 32569.89 100 -66 0.3%
442 49377.83 32569.78 100 -66 0.0%
441 49477.83 32569.66 100 -64 -0.2%
440 49577.83 32569.55 100 -56 -0.6%
FC_PRED_1998_201N_CASE_FIN.xIs: Table 1
PN: 99-03