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<br />TABLE l <br />Southfield Mine <br />SEMI-ANNUAL SUBSIDENCE MONITORING DATA SUMMARY <br />PERIOD: JANUARY 1 THROUGH JUNE 30, 2000 <br />FLORENCE WATER LINE <br />Original Survey Dates: OSI85, 10!8 7, 01195, 05!96 <br />Previous Survey Date: 03!00 <br />Latesl Survey Date: 05100 <br />Change from Original Survey (feet) Change from Previous Survey (feet) <br />Monument Latest Survey Vertical Horizontal Previous Survey Vertical Horizontal <br />No. Elevation Cha a Cha a Elevation Cha a Cha e <br />B 6,432.00 0.00 0.65 6,431.95 0.06 0.12 <br />C 6,477.61 -0.52 1.11 6,477.58 0.03 0.12 <br />__ _ <br />D 6,553.74 _ <br />-0.73 __ <br />__ _ <br />0.49 __ <br />_ _ <br />6,553.71 __ <br />0.04 0.14 <br />E <br />6,631.60 -2.03 1.51 6,631.62 -0.02 0.12 <br />_ _ <br />__ <br />F 6,296.88 -2.02 0.52 6,296.85 _ <br />0.03 _ <br />0.04 <br />G 6,261.49 -3.06 0.52 _ 6,261.54 -0.05 0.07 <br />H 6,239.16 -1.12 __ <br />0.24 6,239.15 0.01 0.04 <br />I 6,206.32 -2.99 0.50 6,206.22 0.10 0.07 <br />CV Joint 6,258.95 -2.64 0.12 6,258.90 0.05 0.04 <br />THOMPSON RANCH STRUCTURES <br />Original Survey Dale: 05/85 <br />Previous Survey Dale: 03100 <br />Lalest Survey Date: 05!00 <br />Change from Original Survey (feet) Change from Previous Survey (feet) <br /> Latest Survey Vertical Horizontal Previous Survey Vertical Horizontal <br />Structure Elevation Cha a Chan a Elevation Cha a Cha e <br />N. House 6,367.49 0.14 1.40 6,367.40 0.09 1.70 <br />S. House 6,372.04 0.10 0.27 6,371.96 0.08 0.10 <br />Barn 6,383.56 0.16 1.82 6,383.24 0.32 2.01 <br />NEWLIN CREEK POINT <br />Original Survey Date: 05/85, 12/96 <br />Previous Survey Date: 03/00 <br />Latest Survey Date: 05100 <br />Change from Original Survey (feet) Change from Previous Survey (feet) <br />Latest Survey Vertical Horizontal Previous Survey Vertical Horizontal <br />Elevation Cha a Cha Elevation Cha a Cha e <br />Point 6,225.96 3.98 2.42 6,221.62 4.34 2.35 <br />NOTE: N/A = No Data <br />