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TABLE 27 SUBSIDENCE SURVEY DATA TABLE 27-A NW 3 WEST END SUBSIDENCE POINTS • • Change IrCm Baseline Survey Change ham Last Survey Change Last 12 Months POINT DATE NORTHING FASTING ELEVATION +/-Northing +/-Fasting +/-Elevation +/-Hoa Dist +/-Elevation +/-Horn Disl +/-Elevation W-1 June, 1995 8585.448 -99774.571 7735 29 Sept., 1995 7733.35 Nov., 1995 7733.32 Mar., 1996 8583.435 -99772.589 7733.21 2 013 -1.982 2.075 2.825 -2 075 June, 1996 8583.051 -99772.274 7733.24 2.397 -2.297 2.045 0.497 0.030 Sept., 1996 8583.012 -99772.301 7733.20 2.436 -2.270 2.085 0.047 -0.040 Dec., 1996 8583.164 -99772.420 7733.15 2.284 -2.151 2.140 0.193 -0 055 Mar, 7997 8583.042 -99772.254 7733.14 2.406 -2317 2.145 0.056 -0.005 0.022 0.10 W-2 June, 7995 8613963 -99834.954 7743.22 Sept., 1995 7742.01 Nov., 1995 7741.99 Mar., 1996 8612.547 -99833.273 7741.88 1 416 -1 681 1.336 2.198 -1 336 June. 1996 8612.169 -997133.003 7741.92 1.794 -1951 1.301 0.465 0.035 Sept., 1996 8612.154 -99833.006 7741.88 1.809 -1.948 1.336 0.015 -0.035 Dec, 1996 8612.246 -99833.725 7741.83 1.717 -1.829 1.391 0.150 -0.055 Mar., 1997 8612.163 -99832.943 7741.82 1.800 -2.011 1.396 0.064 -0.005 0.060 0.10 W-3 June, 1995 8660.078 -99923.324 7747.98 SePt., 1995 7747.46 Nov., 1995 7747.4fi Mar, 1996 8659.355 -99922.311 7747.35 0.723 -1.013 0.630 1.245 -0.630 June, 7996 8658.998 -99922.029 7747.39 1.080 -1.295 0.595 0.455 0.035 Sept.. 1996 8658.978 -99922.019 7747.36 1.100 -1.305 0.625 0 022 -0.030 Dec.. 1996 8659.041 -99922.113 7747.32 1.037 -1.211 0.660 0113 -0.035 Mar., 1997 6658.962 -99921.936 7747 32 1.116 1.388 0 660 0.085 0.000 0.100 0.07 W-4 June, 1995 8679.759 -99964.296 7746.81 Sepl., 1995 7746.4fi Nov, 1995 7746.46 Mar., 1996 8679 079 -99963.369 7746.36 0.600 -0.927 0.450 1.150 -O.a50 June. 1996 86771.709 -99963 085 7746.40 1.050 -1.211 0.415 0 466 0 035 Sep[ , 199fi 8678.698 -99963.090 7746 37 1.061 -1 206 0.440 0.012 -0 025 Dec., 1996 8678.766 -99963.209 7746.34 0.993 -1.087 0.475 0.137 -0.035 Mar, 1997 8678.685 -99963.013 7746.35 1.074 -1.283 0.460 0078 0.015 0.076 0.05 W-5 June, 1995 8694930 -100016.496 7741.82 Sept., 1995 7741 61 Nov., 1995 7741.61 Mar, 1996 Bfi94.537 -100015.956 7741.53 0.393 -0540 0.286 0.666 -0.28fi June, 1996 8694.189 -100015.690 7741.57 0 741 -0.806 0.251 0.438 0.035 Sept.. 1996 8694.174 -100015.690 7741.54 0 756 -0.806 0 276 0 015 -0.025 Dec., 1996 8694.239 -100015.800 7741.51 0.691 -0.696 0 311 0.128 -0 035 Mar., 1997 8694.157 -100015.603 7741 51 0.773 -0 893 0.311 0.089 0.000 0.093 0.06 W-6 June, 1995 8716.561 -100052.945 773647 Sept., 1995 7736.34 Nov., 1995 7736.34 Mar., 1996 8716.145 -100052.438 7736.26 0.416 A.507 0210 0.656 -0.210 June, 1996 6715.858 -100052.210 7736.30 0.703 -0.735 0 175 0.367 0.035 Sept., 1996 8715.848 -100052.190 7736.27 0.713 -0.755 0.205 0.022 -0.030 Dec., 1996 8715.786 -100052.120 7736.24 0.775 -0 825 0.230 0.094 -0.025 Mar., 1997 8715 833 -100052.105 7736.24 0 728 -0.840 O 230 0.086 0.000 0 108 0.06 W-7 June, 1995 8740.815 -100080.226 7735.21 Sept., 1995 7735.04 Nov., 1995 7735.02 Mar., 1996 8740.456 -100079.848 7734.93 0.359 0.378 0.276 0.521 -0.276 June, 1996 8740173 -100079.580 7735.06 0.642 -0.646 0.151 0.390 0.125 Sepl., 1996 8740.004 -100079.410 7734.91 0.811 -0 616 0.301 0.240 -0.150 Dec., 1996 8740.072 -100079.470 7734.89 0.743 -0.756 0.321 0.091 -0.020 Mar., 1997 8740 107 -100079.466 7734.87 0 708 -0.760 0.336 0 117 -0.015 0.132 0.19 W-8 June. 1995 8745.764 -100092.084 7727.69 Sepl, 7995 7727.62 Nov., 1995 7727 63 Mar , 1996 8745.298 -100091.639 7727.56 0.466 -0.445 0.132 0.644 -0.132 June, 7996 8745.121 -100091.300 7727.39 0.643 -0.704 0.302 0.382 -0.170 Sept., 1996 8744 976 -100091.210 7727.56 0 788 -0.874 0.137 0.171 0.165 Dec., 1996 8744 979 -100091.230 7727.55 0 785 -0.854 0.147 0 020 -0.010 Mar., 1997 8745.074 -100091 229 7727.54 0.690 -0.855 0.152 0.100 -0.005 0 085 -0.15 Exhibit 24 Paga 7 5/30/97