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iii _i ii i ii i ii iiii iii <br />WEST ELK MINE <br />C-80-007 <br />SUBSIDENCE REPORT REQUIREMENTS <br />FOR THE <br />SEMI-ANNUAL REPORT (AUGUST 15TH) <br />1994 BEMI-ANNIIAL REPORT <br />REPORT REQIIIREMENTB YEB NO COMIiENTB <br />Survey Schedule X <br />Description of Mining X <br />Advance <br />Subsidence Results X <br />Visual Effects X Noted a crack on the <br /> south line of Section 17 <br /> near the 2WiN panel and <br /> Bear Mine workings. <br /> Only F seam mining in <br /> West Elk Mine. Crack is <br /> about 5' wide, 50' long <br /> and about 30' deep and <br /> runs east to west. The <br /> overburden is about 500- <br /> 750 ft. <br />Monitoring Data (table) X <br />Subsidence during the X <br />current reported period <br />and total subsidence <br />The required contents for the subsidence report was approved <br />during Minor Revision No. 96. <br />CEJ/0075UBSA.1 <br />