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<br />TABLE 1 <br />SOUTHFIELD MINE <br />SEMI-ANNUAL SUBSIDENCE MONITORING GA9'A SUMMARY <br /><NOVEMBER, 1990 THROUGH APRIL, 1991> <br />SOUTH SUBSIDENCE GRID <br />Survey Date: 4191 <br />----------- <br />----------- ------------- <br />------------- <br />CHANGE FROM -------------------- <br />-------------------- <br />ORIGINAL SURVEY ----------------------------------- <br />----------------------------------- <br />CHANGE FROM PRECEEDING SURVEY <br /> Survey date: 3,'83 Survey date: 12/90 <br />---------- -------------- -------------------- <br />HOR220NTAL ----------------------------------- <br />STATION ELEVATION DISTAN~~E ELEVATION <br />NO. <br />----------- <FT> <br />------------- <FT~ <br />-------------------- <FT~ <br />----------------------------------- <br />1 -0.71 0.19 -G.O1 <br />2 -0.80 0.25 0.00 <br />3 -1.08 0.28 -G.O`t <br />9 -1.31 0.19 0.00 <br />5 -0.72 G.18 -0.01 <br />6 -0.82 0.'21 U.UO <br />7 -4.70 0.12 -0.02 <br />8 -0.71 U.08 0.00 <br />9 -0.65 0.19 -O.OS <br />10 -0.67 4.13 -0.01 <br />11 -0.76 0.22 -O.OS <br />22 -1.04 0.27 -0.02 <br />13 -1.96 0.12 -0.01 <br />14 -1.96 0.22 -0.02 <br />15 -2.39 0.35 -0.04 <br />16 -0.98 0.16 -0.01 <br />17 -0.39 0.19 -0.02 <br />18 -U.22 0.21 -0.01 <br />19 -4.17 0.31 -0.42 <br />20 -U.12 0.19 -0.01 <br />21 -O.D7 0.17 0.01 <br />22 -U.06 D.29 -O.OS <br />'23 -0.09 0.11 -0.01 <br />