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<br />SUBSIDENCE MONITORING DATA <br />Semi-annual Report: December, 1993 -June, 1994 <br />Twenty Mile Coal Company, Foidel Creek Mine <br />Monitoring Line 4000 <br /> <br />07/30/94 <br />DISTANCE <br />FROM PRE-MINING <br />SURVEY <br />QUARTERLY SURVEYS <br />SUBSIDENCE PREDICTED <br />SUBSIDENCE PREDICTED <br />SUBSIDENCE <br />1LLW PANEL <br />CENTER <br />(n) MAP 23A <br />POINT PROFILE <br />DISTANCE <br />(n) NORTHING <br /> <br />In) FASTING <br /> <br />ln) ELEVATIO <br /> <br />ln) 1el Otr <br />03/24/83 <br />(n) 2nd Otr <br />0&23/93 <br />(n) 3rtl Otr <br />08/30/83 <br />(n) 4th Otr <br />12/27/93 <br />(n) tet Otr <br />03/14/84 <br />(n) 2nd Otr <br />08/08/84 <br />(n) LAST <br />PERIOD <br />(n) THIS <br />PERIOD <br />ln) <br />TOTAL <br />(n) AFTER 2LLW <br />MINED <br />(n) AFTER ILLW <br />MINED <br />(n) <br />875 4004 2848 35898.1 10000.4 8884.0 BB94.0 8994.0 BB04.0 OBB3.8 8983.8 8983.0 -0.1 -0.1 -0.1 0.0 -0.1 <br />885 4003 2896 35848.4 10000.4 8082.8 BBB2.8 8982.8 !9)02.8 8992.8 6902.8 BB92.8 0.0 0.0 0.0 0.0 -0.1 <br />1015 4002 2748 35588.5 10000.1 8892.3 8882.4 8092.3 8882.4 8992.4 8982.3 8082.3 0.1 0.0 0.0 0.0 -0.1 <br />1085 4001 2780 35548.8 10000.0 8882.0 6892.0 8992.0 8902.0 8882.0 8981.8 8992.0 -0.0 -0.0 -0.0 0.0 0.0 <br />