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<br />SUBSIDENCE MONITORING DATA <br />Semi-annual Report, January -June 1992 <br />Cyprus Empire Coal Corporation, Eagle Mine No. 5 <br />C-Series Line (centerline) <br /> 07/12/1990' Surve Elevations ft <br /> Profile Pre-mining Previous <br />Monitoring Distance Elevation Report Subsidence ft <br />Point ft Northin Eastin ft 1123/91 0324/92 06/17/92 This Period Total <br />C1 0 402859.8 1405015.8 6752.3 6752.3 6752.0 6748.0 ~.3 -4.3 <br />C2 50 402849.3 1405064.7 6758.8 6758.8 6758.8 6754.6 ~.2 ~.2 <br />C3 100 402837.4 1405112.5 6770.9 6770.9 6770.8 6767.3 -3.6 -3.6 <br />C4 150 402827.3 1405163.4 6784.0 6784.0 6782.5 6780.0 ~.0 -4.0 <br />C5 200 402820.5 1405210.4 6790.9 6790.7 6789.2 8787.0 -3.8 -3.9 <br />C6 250 402810.7 1405261.5 6800.5 6800.5 6798.1 6796.4 ~.1 -4.1 <br />C7 300 402801.6 1405310.1 6813.7 6813.4 6810.9 6809.7 -3.7 ~.0 <br />CB 350 402792.4 1405358.9 6825.9 6825.1 6822.5 6821.5 -3.6 ~.4 <br />C9 400 402780.9 1405407.9 6834.5 6834.1 6831.6 6830.7 -3.4 -3.8 <br />C10 450 402769.6 1405458.2 6845.4 6845.4 6843.0 6841.7 -3.6 -3.6 <br />C11 500 402760.5 1405506.4 6855.1 6854.9 6852.7 6851.5 -3.4 -3.6 <br />C12 550 402751.0 1405555.1 6863.7 6863.3 6860.9 6860.4 -2.9 -3.4 <br />C13 600 402743.3 1405604.5 6870.3 6869.6 6867.4 6866.9 -2.6 -3.3 <br />All pre-mining elevations represent post-F-seam mining surtace elevations <br />04DEC92 <br />