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<br />SUBSIDENCE MONITORING DATA <br />Semi-annual Report, January -June 1993 <br />Cyprus Empire Coal Corporation, Eagle Mine No. 5 <br />C-Series Line (centerline) <br /> (1, ) Survey levations (ft) <br /> Profile Pre-mining Previous <br />Monitoring Distance Elevation Report (2) Subsidence (ft) <br />Point ft Northin Eastin ft 09/30/92 05/11/93 This Period Total <br />C1 0 402859.8 1405015.8 6 2.1 674. 0.0 6747. -0.0 -4.4 <br />C2 50 402849.3 1405064.7 6758.6 6754.3 0.0 6754.2 -0.1 -4.4 <br />C3 100 402837.4 1405112.5 6770.8 6767.1 0.0 6767.0 -0.0 -3.8 <br />C4 150 402827.3 1405163.4 6783.9 6779.7 0.0 6779.7 -0.0 -4.2 <br />CS 200 402820.5 1405210.4 6790.8 6786.7 0.0 6786.7 0.0 ~.1 <br />C6 250 402810.7 1405261.5 6800.3 6796.1 0.0 6796.1 -0.0 -4.3 <br />C7 300 402801.6 1405310.1 6813.5 6809.3 0.0 6809.3 -0.0 -4.3 <br />C8 350 402792.4 1405358.9 6825.8 6821.2 0.0 6821.2 -0.0 ~.6 <br />C9 400 402780.9 1405407.9 6834.4 6830.4 0.0 6830.3 -0.1 -4.0 <br />C10 450 402769.6 1405458.2 6845.2 6841.4 0.0 6841.4 -0.0 -3.8 <br />C11 500 402760.5 1405506.4 6855.0 6851.2 0.0 6851.2 -0.0 -3.8 <br />C12 550 402751.0 1405555.1 6863.6 6860.1 0.0 6860.0 -0.1 -3.6 <br />C73 600 402743.3 1405604.5 6870.1 6866.7 0.0 6866.6 -0.0 -3.5 <br />NOTES: <br />(1) All pre-mining elevations represent post F-seam mining surface elevations as of 0 711 2/1 9 9 0. <br />(2) Baseline elevations reduced by 0.15 ft to reflect new elevation for control point AMOS as of 09/30/1992. <br />30JUN93 <br />