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MOUNTAIN COAL COMPANY WEST ELK MINE SUBSIDENCE UPDATE <br /> AUGUST 1998 <br /> SUBSIDENCE POINT # 1 2 3 4 <br />POST MINING NORTHING 395975.06 395472. 06 395469.47 395466.80 <br />SURVEY #26 EASTING 1442164.63 1442214 .12 1442265.69 1442315.04 <br />AUGUST 1998 ELEVATION 7859.97 7839.01 7803.94 7777.04 <br />SUBSIDENCE (CURRENT) <br />from Oct. 1998 to August 1998 <br />(-) Indicates Rise in Elevation <br />TOTAL SUBSIDENCE <br />from average pre-mining surveys <br />to August 1998 <br />0.00 0.14 0.06 0.06 <br />7.24 7.85 7.72 <br />5.11 <br />Paqe 2 SUBDOC97.XLS <br />