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s .. A. <br />• • <br />Tom Gillis - 2 - December 16, 1987 <br />The Deserado Mine's projected mining schedule shows mining progressing into <br />the second longwall panel immediately following completion of the first panel <br />currently being monitored. The amended permit document (pages III-31b and <br />III-31c) specified that the Division would visually inspect the potentially <br />subsided areas during the fall of 1987 and the spring of 1988. If arty "major <br />problems" were encountered, the Division was to notify Western Fuels-Utah, <br />Inc. of arty changes needed in its mine plan. When you have completed your <br />inspections please notify me if you discern arty potential problems. <br />Deserado's approved mine plan also states that an equivalent subsidence <br />monitoring survey will be conducted above room and pillar panel RP-5. There <br />is no mention of scheduling for the completion of that monitoring exercise. <br />The approved plan projected its occurrence to be simultaneous with the <br />monitoring program above longwall panel LW-1. The operator should provide us <br />with an amended schedule for the completion of the subsidence monitoring <br />exercise above a room and pillar section within the Deserado Mine. <br />JP/es <br />4014E <br />cc: Mike Savage <br />