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SUBSIDENCE MONITORING DATA <br />Semi-annual Report, July -December 1993 <br />Cyprus Empire Coal Corporation, Eagle Mine No. 5 <br />C-Series Line (centerline) <br /> (1, 2) Survey IevaUons (ft) <br /> Profile Pre-mining Previous <br />Monitoring Distance Elevation Report (2) Subsidence (ft) <br />Point ft Northin Eastin ft 05/11/93 09/10/93 This Period Total <br />C1 0 402 59. 140 01 .8 6 52.1 6747.7 0.0 674 .6 - .1 I -4.6 <br />C2 50 402849.3 1405064.7 6758.6 6754.2 0.0 6754.1 -O.t -4.5 <br />C3 100 402837.4 1405112.5 6770.8 6767.0 0.0 6766.9 -0.1 -3.9 <br />C4 150 402827.3 1405163.4 6783.91 6779.7 0.0 6779.6 -0.1 -4.3 <br />CS 200 402820.5 1405210.4 6790.8 ~ 6786.7 0.0 6786.5 -0.1 ~.2 <br />C6 250 402810.7 1405261.5 6800.3 ~ 6796.1 0.0 6795.9 -0.2 -4.4 <br />C7 300 402801.6 1405310.1 6813.5 6809.3 0.0 6809.1 -0.2 -4.4 <br />C8 350 402792.4 1405358.9 6825.8 ~ 6821.2 ~ 0.0 6821.0 -0.1 -4.7 <br />C9 400 i 402780.9 1405407.9 6834.4 6830.3 ( 0.0 6830.2 <br />1 -0.1 -4.2 <br />C10 450 402769.6 1405458.2 6845.2 6841.4 0.0 6841.3 -0.1 -4.0 <br />C11 500 402760.5 1405506.4 6855.0 6851.2 0.0 6851.01 -O.t -3.9 <br />C12 550 402751.0 1405555.1 6863.6 6860.0 0.0 6859.9 -0.1 -3.7 <br />C13 600 402743.3 1405604.5 6870.1 6866.6 0.0 6866.51 -0.1 -3.6 <br />NOTES' <br />(1) All pre-mining elevations represent post F-seam mining surface elevations as of 07!1211990. <br />(2) Baseline elevations reduced by 0.1 S ft to reflect new elevation for control point AMOS as of 09/30/1992. <br />31bEC93 <br />