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SUBSIDENCE MONITORING DATA <br />Semi-annual Report, June -December 1991 <br />Cyprus Empire Coal Corporation, Eagie Mine Ho. 5 <br />D-Series Line (centerline) <br /> 07/22/1990' Surve Elevations (ft) <br /> Profile Pre-mining Previous <br />Monitoring Distance Elevation Report Subsidence (f t) <br />Point (ft) Northing Eastina (ft) 04/16/91 07/27/91 11/23/91 This Period Total <br />D1 0 403248.4 1405094.9 6658.5 6658.5 6658.5 6658.5 0.0 0.0 <br />D2 50 403240.0 1405141.0 6668.5 6658.5 6668.5 6666.5 0.0 0.0 <br />D3 100 403228.8 1405192.2 6619.5 6679.5 6679.5 6679.5 0.0 D.D <br />D4 150 403218.2 140524 D.9 6691.6 6691.6 6691.6 6691.6 0.0 0.0 <br />DS 200 403210.1 1405291.3 6703.0 6703.0 6703.0 6702.8 -0.1 -0.] <br />D6 250 403203.8 1405336.7 6719.2 6719.2 6719.2 6119.0 -0.2 -0.2 <br />D7 300 403789.0 1405369.7 6737.8 6737.8 6737.8 6737.6 -0.2 -0.2 <br />D8 350 403180.7 1405438.8 6751.5 675].6 6751.6 6751.6 0.0 D.D <br />D9 400 403173.3 1405485.9 6762.6 6762.6 6762.6 6762.6 0.0 0.0 <br />010 450 403164.5 1405534.4 6773.9 6773.9 6773.9 6173.6 -0.3 -0.3 <br />011 500 403154.7 1405584.4 6765.6 6785.6 6765.6 6785.1 -0.5 -0.5 <br />012 550 403144,4 2405632.6 6798.1 6798.2 6798.3 6797.1 -].0 -].0 <br />* All pre-minir~g elevations represent post-F-seam mining surface elevations <br />