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<br />Southfield Mine <br />SEMI-ANNUAL SUBSIDENCE MONTTORING DATA SUMMARY <br />PERIOD: ]ANUARY 1 THROUGH JUNE 30, 1999 <br />FLORENCE WATER LINE <br />Original Survey Dates: 5165, 10!87, 1/95, 5196 <br />Prevaus Survey Date: 3199 <br />Latest Survey Date: 7199 <br />Change from Original Survey <br />Monument Latest Survey Vertical Horizontal <br />B 6,431.65 -0.35 0.70 <br />C.:.:.. 6.477:22::..: ... -0:91:.: 1..13:.. <br />D 6,553.22 -1.25 0.51 <br />E . 6,631,09. _2.54.: . . 1.28:. <br />F 6,296.66 -2.24 0.48 <br />. G .: 6,261:37: -3.18:. 0:56. . <br />H 6,238.87 -1.41 0.22 <br />I ...:.::.: .: .6,205. ::.:. . <br />- <br />CV Joint 6,258.65 -2.94 0.13 <br />TABLE 1 <br />Change from Previous Survey <br />Previous Survey <br />Elevation fFt) <br />Vertical Horizontal <br />6,431.83 <br />6,477.45 <br />6,553.58 <br />6,631.41 <br />6,296.82 <br />6,261.48 <br />6,238.98 <br />6;207.55 <br />-0.18 0.20 <br />-0.23'..: .. . .:0:16.. <br />-0.36 0.16 <br />-0.32 0,20 <br />-0.16 0.08 <br />-0.11. 0.13 <br />-0.11 0.09 <br />-1.66: 0:61::. <br />THOMPSON RANCH STRUCTURES <br />Original Survey Date: 5185 <br />Prevaus Survey Date: 3/99 <br />Latest Survey Date: 7/99 <br />Change from Original Survey Change from Previous Survey <br />Latest Survey Vertical Horizontal Previous Survey Vertical Horizontal <br />Structure Elevation Ft Cha a Ft Cha a Ft Elevation Ft Cha a Ft Cha a Ft <br />N. House 6,366.78 -0.57 0.27 6,367.16 -0.38 0.06 <br />S. House 6,371.34 -0.60 .0.25 6,371.73 -0.39 0.10 <br />Barn 6,382.84 -0.56 0.25 6,383.16 -0.32 0.16 <br />NEWLIN CREEK POINT <br />Original Survey Dale: 5/85, 12/96 <br />Previous Survey Dale: 3/99 <br />Latesl Survey Date: 7199 <br />Change from Original Survey <br />Latest Survey Vertical Horizontal <br />Elevation (Ft) Chance (Ft) Chance (Ft <br />Change from Previous Survey <br />Previous Survey Vertical Horizontal <br />Elevation (Ft) Chance (Ft) Chance (Ft) <br />79 <br />NOTE: N/A = No Data <br />