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<br />SUBSIDENCE MONITORING DATA <br />Semi-annual Report, July -December, 1993 <br />Twenty Mile Coal Company, Foidel Creek Mine <br />Monitoring Line 4000 <br />DISTANCE <br />FROM <br />SURVEY ELEVATIONS <br />SUBSIDENCE PREDICTED <br />SUBSIDENCE <br />1LLW PANEL <br />CENTER <br />(h) MAP 23A <br />POINT PROFILE <br />DISTANCE <br />(h) NORTHING ELEVATION <br /> <br />(h) (h) <br />03/24193 <br />(R) <br />08!23193 <br />(tt) <br />08/30/83 <br />12/27183 LAST <br />PERIOD <br />(R) THIS <br />PERIOD <br />(h) <br />TOTAL <br />(h) AFTER 2LLW <br />MINED <br />(R) <br />-1733 4052 0 38348.7 8880.8 8880.2 8880.1 5880.0 &880.3 -0.7 -0.5 -0.5 <br />-1883 4051 50 38288.3 8894.5 8883.8 8893.& 8883.8 8883.8 -0.9 -0.7 -0.7 <br />-1838 4050 08 38248.0 8888.0 BB97.1 5887.0 8887.0 8887.1 -1.0 -0.8 -0.e <br />-1584 406D 148 38187.8 8800.7 8888.8 8888.5 8888.5 8888.8 -1.2 -1.1 -1.1 <br />-1535 4048 188 38148.8 8803,5 8802.3 8002.1 8902.1 8502.2 -1.4 -1.3 -1.3 <br />-1485 4047 248 38008.1 8905.8 8804.4 8904.3 8904.3 8804.4 -1.5 -1.5 -1.5 <br />-1435 4048 288 38048.1 8807.8 8805.4 8808.3 8808.2 8908.4 -1.8 -1.5 -1.5 <br />-1428 4045 307 38039.9 8809.1 8908.5 5905.4 8800.4 5908.5 -1.7 -1.8 -1.5 <br />-1388 4044 347 37999.3 5809.8 8808.2 8808.0 8908.0 8908.0 -1.8 -1.8 -1.8 <br />-1333 6043 401 37948.2 8812.9 8011.1 8911.0 5811.0 8910.9 -1.0 -2.0 -2.0 <br />-1283 4042 450 37888.8 8913.8 5811.8 8911.4 8911.4 8811.4 -2.2 -2.2 -2.2 <br />-1237 4041 501 37848.0 8814.7 8012.6 8012.4 8912.3 8912.3 -2.3 -2.4 -2.4 <br />-1188 4040 534 37872.& 8918.5 8818.1 8918.0 8018.0 8918.0 -2.5 -2.5 -2.5 <br />-1128 4038 807 37738.3 8822.5 8919.7 5919.5 8818.8 8818.5 -3.0 -3.0 -3.0 <br />-1051 4038 BB2 37854.4 8921.5 8918.2 8918.1 8818.1 8817.8 -3.4 -0.8 -3.8 <br />-977 4037 758 37500.] 5924.0 8920.5 8920.4 8920.3 8920.0 -3.8 -0.0 -4.0 <br />-818 4038 818 37531.1 8028.7 5023.4 8023.3 8823.3 8822.7 -3.4 -0.0 -0.D -0.7 <br />-802 4035 831 37515.8 8927.0 8823.7 8823.5 8823.8 8823.0 -3.4 -0.0 -1.0 -3.8 <br />-025 4034 BOD 37438.0 8932.0 8828.5 8828.4 8828.4 8828.4 -2.8 7.8 ,7.8 -3.1 <br />-750 4033 884 37383.2 8937.3 8835.8 8935.8 8835.5 8934.2 -1.7 ,7.1 1.1 -2.2 <br />-075 4032 1058 37288.5 8942.5 8841.5 8841.4 8941.4 8038.9 -1.1 -2.8 -2.8 -1.4 <br />-800 4031 1133 37213.3 8845.8 8945.2 8945.2 8845.1 8843.5 -0.5 -2.3 -2.3 -0.B <br />-550 4030 1183 37183.7 8848.1 8848.7 8948.5 8848.8 8948.8 -0.5 -2.2 -2.2 -0.8 <br />-500 4029 1233 37113.8 8950.7 8950.3 8950.3 8950.3 8848.3 -0.4 -2.4 -2.4 -0.4 <br />