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• <br />Survey <br />Descriptor <br />PNT1A ** <br />PNT2 <br />PNT3 <br />_ PNT4 <br />PNT5A ** <br />PNT6 <br />PNT7 <br />A• ppendix D • <br />Panel 25 B-Seam Survey Data Comparison <br />PRE MINING <br />July 16, 2008 <br />Northing (Y) Easting (X) Elev (Z) <br />398717.63 1448779.37 6634.20 <br />399547.45 1447726.60 6536.30 <br />403218.24 1448432.98 6224.10 <br />399818.48 1448216.21 6614.10 <br />402420.05 1448977.53 6643.77 <br />400761.48 1448430.42 6644.22 <br />399193.75 1448037.57 6571.77 <br />DURING MINING <br />December 2, 2008 <br />Northing (Y) Easting (X) Elev (Z) <br />398703.92 1448757.31 6634.25 <br />399547.95 1447727.54 6535.76 <br />403218.78 1448433.07 6224.03 <br />399818.11 1448213.39 6608.61 <br />402419.22 1448969.54 6639.02 <br />400761.47 1448425.74 6637.51 <br />399193.94 1448037.79 6571.58 <br />* Value cited is difference between Post Mining and Pre Mining values. <br />** Original point destroyed and was reset in Fall 2008. <br />POST MINING <br />May 1, 2009 <br />Northing (Y) Easting (X) Elev (Z) <br />398703.93 1448757.35 6634.25 <br />399547.98 1447727.59 6535.75 <br />403218.81 1448433.05 6224.04 <br />399818.04 1448213.24 6608.59 <br />402419.18 1448969.48 6639.02 <br />400761.48 1448425.71 6637.18 <br />399193.93 1448037.75 6571.58 <br />Mountain Coal Company Wright Water Engineers, Inc. <br />Z:\ProjectFiles\72-99\831-032\831-032.791\Engineering\Spring 2009\Appendices\Appendix D\ 1/15/10 <br />Appendix D - Panel 25 BSeam Survey Data Comparison (2008-2009) <br />Page 1 of 1 <br />DIFFERENCE <br />PRE- to Post-Minin g <br />Northing (Y) Easting (X) Elev (Z) <br />-13.7 -22.0 0.1 <br />0.5 1.0 -0.5 <br />0.6 0.1 -0.1 <br />-0.4 -3.0 -5.5 <br />-0.9 -8.0 -4.8 <br />0.0 -4.7 -7.0 <br />0.2 0.2 L <br />0.2 <br />Des. by: MCC <br />Ckd by: GDW