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Page 2 of 2 <br />Appendix B <br />E- Seam Subsidence Grid Data <br /> PRE-M INING DURING-MINING POST-MINING Elevation <br />survey neap point May-07 October 2008 May 2009 November 2009 Difference <br />•s <br />Descflptor <br />S88 No. <br />88 No.. <br />202 Northing (Y) <br />388498.166 Eastng (X) <br />1450130.544 Elev (Z) <br />8031.465 Northing (y) <br />388498.205 Easting (X) <br />1450130.609 Elev (Z) <br />8031.378 <br />876 <br />8026 Northing (Y) <br />388498.228 <br />388545 <br />636 Easting (X) <br />1450130.608 <br />1450137 <br />956 Elev (Z) <br />8031.471 <br />8026.881 Northing (Y) <br />388498.128 <br />388545.411 Eastr (X) <br />1450130.205 <br />1450137.543 Elev (Z) <br />8031.261 <br />8026.692 (feet) <br />-0.117 <br />-04184 <br />589 <br />590 89 <br />90 201 <br />200 388545.534 <br />385598.096 1450137.896 <br />1450146.713 8026.906 <br />8019.997 388545.573 <br />3885984153 1450137.905 <br />1450146.728 . <br />8019.932 <br />7836332 . <br />388598.202 <br />386271 <br />64 . <br />1450146.749 <br />1454035 <br />53 8019.956 <br />392 <br />7836 388598.068 <br />386271.559 1450146.422 <br />1454035.474 8019.830 <br />7836.404 -0.102 <br />0.072 <br />i!9 __ <br />592 92 313 <br />312 386271.545 <br />386282.570 1454035.620 <br />1453987.597 7836.434 <br />7819.936 386271.549 <br />386282.492 1454035.655 <br />1453987.663 7819.908 . <br />386282.544 . <br />1453987.578 <br />1453934 <br />563 . <br />7819.863 <br />7803363 3862820527 <br />802 <br />386285 1453987.532 <br />1453934.544 7819.880 <br />7803326 -0.028 <br />t 0.012 <br />^.593! <br />594 ,4 311 <br />310 3862854836 <br />386300.814 1453934.651 <br />14538814894 7803.294 <br />7809.968 386285.851 <br />386300.921 1453934.663 <br />1453881.906 7803314 <br />7809.997 <br />193 <br />7817 386285.832 <br />386300.893 <br />386302 <br />181 . <br />14538814825 <br />714 <br />1453832 7809.962 <br />7817.081 . <br />386300.915 <br />386302.181 1453881.749 <br />1453832.641 7809.977 <br />78174280 -0.020 <br />' 0.087 <br />':;895^: -? <br />596 .. <br />96 309 <br />308 386302.061 <br />386325.149 1453832.831 <br />1453787.482 7817.102 <br />7834.329 386302.089 <br />386325.136 1453832.819 <br />1453787.529 <br />42 . <br />78344420 <br />7864 <br />201 4 <br />386325.168 <br />386338 <br />281 . <br />1453787.435 <br />776 <br />1453726 7834.44 <br />7864.262 386325.204 <br />3863384299 1453787.308 <br />1453726.754 7834.407 <br />7864.134 -0.013 <br />-0.067 <br />S97 <br />598 97 <br />98 307 <br />306 3863384236 <br />386331.882 1453726.903 <br />1453684.106 7864.203 <br />78774432 386338.250 <br />386331.887 1453726.9 <br />1453684.179 <br />4 . <br />7877.560 <br />7917 <br />596 . <br />386331.973 <br />323 <br />386370 . <br />1453683975 <br />689 <br />1453633 7877.426 <br />7917.525 386331.866 <br />386370.229 1453683.991 <br />14536334641 7877.523 <br />7917.517 -0.037 <br />-0.079 <br />599 <br />5100 99 <br />100 305 <br />304 386370.192 <br />386357.884 1453633.833 <br />1453595.730 7917.671 <br />7923.834 3863704183 <br />386357.833 1453633.81 <br />1453595.794 . <br />79244148 <br />213 <br />7950 . <br />386357.892 <br />964 <br />386404 . <br />1453595.657 <br />1453561512 7924.189 <br />7950.146 386357.951 <br />386405.019 1453595.560 <br />1453561.452 7924.081 <br />7950.168 -0.067 <br />-0.045 <br />5101 <br />5102 101 <br />102 303 <br />302 386404.868 <br />3863974229 1453561.649 <br />1453482.402 7950.180 <br />7965.047 386404.951 <br />386397177 1453561.677 <br />1453482.427 . <br />7965.139 <br />415 <br />7982 . <br />386397.32 <br />074 <br />386405 1453482.28 <br />399 <br />1453430 7964.954 <br />7982.229 386397.316 <br />386405.067 1453482.180 <br />1453430.361 7964.840 <br />7982.127 -0.299 <br />-0.288 <br />5103 <br />5104 103 <br />104 301 <br />300 386404.964 <br />386418.279 1453430.548 <br />1453392.928 7982.343 <br />8007.975 386405.033 <br />386418.318 1453430.553 <br />1453392.962 . <br />8008.024 <br />663 <br />8034 . <br />386418.351 <br />035 <br />386429 . <br />1453392.852 <br />783 <br />1453339 8007.806 <br />8034.392 386418.349 <br />386429.100 1453392.690 <br />1453339323 80074723 <br />8034.409 -0301 <br />-0.254 <br />5105 <br />5106 105 <br />106 299 <br />298 386429.001 <br />386461.005 1453339.932 <br />1453267.037 8034.693 <br />8074.716 386429.037 <br />386461.029 1453339.960 <br />1453267.081 <br />796 . <br />8074.650 <br />187 <br />8105 . <br />386461.08 <br />386496 <br />332 . <br />1453266.756 <br />1453232 <br />294 8074.269 <br />8104.701 386461.012 <br />3864964270 1453266.687 <br />1453232.257 8074.275 <br />8104.556 -0375 <br />-0.631 <br />5107 <br />5108 107 <br />108 297 <br />296 386496.200 <br />386513.342 1453232.759 <br />1453052.937 8105.255 <br />8168.195 386496.278 <br />386513.431 1453232. <br />1453052.924 <br />7 . <br />8168.088 <br />8202 <br />788 . <br />386513.415 <br />375 <br />386564 . <br />1453051.688 <br />582 <br />1452762 8166.626 <br />8198.732 386513.417 <br />386564.339 1453051.658 <br />1452762.500 8166.415 <br />8198.540 -1.673 <br />-4.248 <br />5109 <br />5110 109 <br />110 295 <br />286 386564.617 <br />386638.144 1452764.695 <br />1452449.241 8202.826 <br />8179.828 386564.591 <br />386638.132 1452764470 <br />1452449.207 <br />1 <br />909 . <br />81794855 <br />020 <br />8120 . <br />386638.142 <br />386690338 . <br />1452446.717 <br />1452190 <br />055 8175320 <br />8115.580 386638.040 <br />386690315 1452446.638 <br />1452189.966 8175360 <br />8115.439 -0.495 <br />-4.581 <br />5111 <br />5112 111 <br />112 287 <br />288 386689.707 <br />386810.881 1452191.915 <br />1451956.773 81204132 <br />8021.063 386689.738 <br />386811A13 . <br />145219 <br />1451956.795 <br />7 <br />762 . <br />8020.796 <br />447 <br />7988 386811.288 <br />386840 <br />825 . <br />1451954.999 <br />1451517 <br />164 8016.396 <br />7983.798 386811.378 <br />386840.880 14519544943 <br />1451516.975 8016.174 <br />7983.630 -0.622 <br />-4.817 <br />5113 <br />5114 113 <br />114 289 <br />290 386839.505 <br />386937.950 1451517.785 <br />1451363.249 7988.522 <br />7947.542 386839.561 <br />386937.870 . <br />145153 <br />1451363.258 . <br />7947.472 4 <br />386939.065 <br />085 <br />387066 . <br />1451362.254 <br />874 <br />1450870 7942.758 <br />7939.467 386939.141 <br />387066.229 14513624099 <br />1450870.259 7942.619 <br />7938.902 4.853 <br />-4.931 <br />5115 <br />5116 115 <br />116 291 <br />292 387066.154 <br />387054.852 14508704639 <br />1450723.912 7944. <br />8035. . <br />387054.962 <br />43 <br />387062 . <br />1450724.602 <br />257 <br />1450377 8011334 <br />8081.271 3870554054 <br />387063.054 1450723.638 <br />1450375.323 8010.636 <br />8079.127 -0.936 <br />-4.755 <br />5117 <br />5118 117 293 387120.400 <br />387184.149 14503994558 <br />1450147.907 8085. <br />8067 W . <br />387184.66 <br />387277 <br />268 . <br />1450148.603 <br />1449858 <br />945 8066.800 <br />8014.297 387185.470 <br />387278.115 1450146.160 <br />1449856.342 8062.509 <br />8008.984 -5.164 <br />-54417 <br />5119 <br />5120 120 315 387277.049 <br />387340.114 1449858.702 <br />1449559.954 8014 <br />7894 7 . <br />387340.242 <br />594 <br />387422 . <br />14495594932 <br />1449210 <br />652 7894.097 <br />8031.623 387340.181 <br />387421.487 1449559.213 <br />1449209.692 7888.979 <br />8025.286 -5.181 <br />-6356 <br />5121 <br />5122 121 <br />122 319 <br />318 3874224499 <br />387444.791 1449210.640 <br />1448975.938 8031 <br />8076 . <br />387444.886 <br />043 <br />387555 . <br />14489754936 <br />697 <br />1448691 8076.122 <br />8074.993 387444.019 <br />387554.930 1448974.172 <br />1448688.911 8069.620 <br />8068.129 -64413 <br />-6.744 <br />5123 <br />5124 123 <br />124 316 <br />317 387554.984 <br />387640.058 1448691.757 <br />1448386.659 8075 <br />7961.007 387640.120 1448386.712 7960.930 4 <br />387640.159 . <br />1448386.695 7960.966 387640.460 1448383.677 7953946 -6.984 <br />Survey point reset as indicated due to loss of survey marker. <br />Survey point #259 was apparently overlooked in the 1008 survey. <br />Survey point #266 was not reset in that it is now beneath the side slope of a new Methane Drainage Well (MOW) drill pad. <br />Elevation Difference (in feet) is the result of subtracting the November 2009 elevation from the most recent pre-mining elevation (October 2008) for each survey Point <br />Elevation Difference (in feet) is the result ofsubtrocting the November 2009 elevation from the firstpre-mining elevation (May 1007) for this survey point due to an overlooked survey <br /> Point in October 2008. <br />Elevation Difference (in Feet) is the result ofsubtracting the November 2009 elevation from the May 2009 elevation for this survey point due to the loss of the pre-mining survey marker. <br />Post-mining elevation is higher than the pre-mining survey. <br />Mountain Coal Company <br />Z:\Project Files\72-99\831-032\831-032.791\Engineering\Fall 2009\ Wright Water Engineers, Inc. Des. by: MCC <br />Appendix B- Grid Data Comparison (2007-2009) 2/8/2010 Ckd by: : GDW