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<br />SUBSIDENCE PROFILE <br />6LCL:SM98 Centerline Monitoring Line <br />Subsidence (ft) <br />1.0 1.0 <br />Estimated Point of Zero Subsidence <br />0.0 0.0 <br />-1.0 -1.0 <br />-2.0 -2.0 <br />-3.0 -3.0 <br />-4.0 -4.0 <br />Ribside, Start Room <br />-5.0 -5.0 <br />0 1 2 <br />Horizontal Distance (1000 ft) <br />Survey Dates <br />~- 22 S EP 89 + 02 OCT 89 -~- 20 DEC 89 -~ 24 AUG 90 <br />Cyprus Twentymile Coal Company <br />