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<br />
<br />TABLE 27-B 3rd North Subsidence Markers
<br />East-West North of River
<br /> Change tram Baseline Survey Change from Last Survey Change last 12 Montha
<br />POIN DATE NORTHING FASTING ELEVATION +/-NOrthin +/- Eastin /- Elevatio +/- Horz Dist +/. Elevation +/- Horz Dist +/- Elev
<br />38 Aug. 1994 4372.90 -93.667.20 7421.57
<br /> Dec. 1994 4371.25 -93,fi67.56 7420.61 1.65 0.36 0.96 1.69 0.96
<br /> Mar., 1995 7420.49
<br /> June, 1995 7420.52
<br /> Sept. 1995 7420.15
<br /> Dec. 1995 7420.07
<br /> Mar., 1996 4373.50 -93,fi68.79 7420.13 -0.60 1.59 1 44
<br /> June, 7996 4373.55 -93,668.90 7420.07 -0.65 1.70 1.51 0.12 0.07 0.65 0.45
<br /> Sept., 1996 4373.53 -93,668.67 7420.01 -0.63 1.67 1.56 0.03 0.05
<br /> Dec., 1996 4373.49 -93,668.89 7420.00 -0.59 1.68 1.57 0.04 0.01
<br /> Mar., 1997 4373.50 -93,668.93 7419.92 -0.60 1.73 1.65 0.04 0.08
<br /> Aug. 1997 4373.54 -93,666.93 7419.91 -0.64 1.73 1.66 0.04 0.01 0.04 0.15
<br /> Sept. 1997 4373.55 -93,668.94 7419.90 -0.65 1.74 1.67 0.01 0.01
<br /> Dec. 1997 4373.55 -93,668.90 7419.68 -0.65 1.70 1.69 0.04 0.02
<br /> Mar., 1998 4373.54 -93,666.93 7419.88 -0.64 1.73 1.69 D.03 0.00
<br /> Jun.. 1996 4373.55 -93.668.92 7419.87 -0.65 1.72 1.70 0.01 0.01 0.01 0.04
<br />
<br />39 Aug. 1994 4334.42 -93.579.38 7466.77
<br /> Dec. 1994 4333.27 -93,579.53 7466.J0 1.15 0.15 047 1.16 0.47
<br /> Mar., 1995 7466.28
<br /> June. 7995 7466.37
<br /> Sept. 1995 746fi.08
<br /> Dec. 1995 7466.03
<br /> Mar.. 1996 4334.76 •93,580.08 7466.08 -0.32 0.70 0.69
<br /> June, 1996 4334.77 -93,580.17 7466.05 -0.35 0.79 0.73 0.09 0.03 0.35 0.33
<br /> Sept., 1996 4334.76 -93,580.16 7466.05 -0.34 0.78 0.73 0.02 0.00
<br /> Dec.. 1996 4334.75 -93,580.20 7466.06 -0.33 0.82 0.72 0.04 -0.01
<br /> Mar., 1997 4334.78 -93.580.23 7466.02 -0.36 0.85 0.75 0.05 0.04
<br /> Aug. 1997 4334.76 -93,580.23 7466.01 -0.36 0.85 0.76 0.00 0.01 0.01 0.03
<br /> Sept. 1997 4334.79 -93,580.24 7466.01 -0.37 0.86 0.76 0.01 0.00
<br /> Dec. 1997 4334.78 -93.560.23 7x66.03 -0.36 0.85 0.76 0.01 -0.02
<br /> Mar., 1998 4334.79 -93,560.24 7466.00 -0.37 0.86 0.77 0.01 0.03
<br /> Jun.. 1998 4334.77 -93,580.22 7466.02 -0.35 0.84 0.75 0.03 -002 0.02 -0.01
<br />
<br />a0 Aug. 1994 4280.73 -93.486.66 7493.98
<br /> Dec. 1994 4279.47 -93,486.95 7x92.94 1.26 0 27 1.04 1.26 1.04
<br /> March, 1995 7493.66
<br /> June. 1995 7493.85
<br /> Sept. 1995 7493.55
<br /> Dec. 1995 7493.54
<br /> Mar., 1996 4260.73 -93,486.89 7493.56 0.00 0.21 0.42
<br /> June, 1996 x280.74 -93.486.96 7493 5a -0.01 0.26 0.44 0.05 0.02 0 02 0.31
<br /> Sept., 1996 x280.79 -93.467.16 7x93.54 -0.06 0Afi 0aa 0.20 0.01
<br /> Dec., 1996 4260.75 -93,486.94 7493.56 -0.02 0.26 0.42 0.20 -0.02
<br /> Mar., 1997 4260.75 -93p86.95 7493.46 -0.02 0.27 0.50 0.01 0 OB
<br /> Aug. 1997 4280.74 -93,486.96 7493.49 -0.01 0.28 0.49 0.02 -0.01 0.01 0 05
<br /> Sept. 1997 4280.73 -93.486 92 7493.50 0.00 0.24 0.48 0.04 -0.01
<br /> Dec. 1997 4260.75 -93,486.98 7493.48 -0.02 0.30 0.50 0.06 0.02
<br /> Mar., 1998 4260.74 -93,486.96 7493.49 -0.01 0.26 0.49 0.02 -0.01
<br /> Jun.. 1998 4280.75 -93,486.93 7493.44 -0.02 0.25 0.54 0.03 0.05 0.01 0.05
<br />
<br />41 Au .1994 4234.80 -93.401.58 7509.16
<br /> Dec. 1994 4234.96 -93.401.49 7509.25 -0.16 -0.09 -0.09 0.18 -0.09
<br /> March, 1995 7509.41
<br /> June, 1995 7509.59
<br /> Sept. 1995 7509.32
<br /> Dec. 1995 7509.30
<br /> Mar., 1996 4234.99 -93.401.69 7509.34 -0.19 0.17 -0.16
<br /> June, 1996 4234.97 -93,401.70 7509.28 -0.17 0.12 -0.12 0.03 O.Ofi
<br /> Sept., 1996 4234.95 -93,x01.69 7509.26 -0.15 0.11 -0.10 0.02 0.02
<br /> Dec., 1996 4234.97 -93,401.71 7509.27 -0.17 0.13 -0.11 0.03 -0.02
<br /> Mar., 1997 423s.99 -93,401.73 7509.20 -0.19 0.15 -0.04 0.03 0.07
<br /> Aug. 7997 4234.98 -93,401.72 7509.21 -0.18 0.14 -0.05 0.01 -0.01
<br /> Sept. 1997 4234.99 -93,401.70 7509.19 -0.19 0.12 -0.03 0.02 0.02 0.04 0.07
<br />Exhibit 24
<br />Page 18
<br />Revised 8/21/98
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