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~• 2.05.2 Operation Plan - Life of Operation <br />Table V-1 <br />1. (a) The overburden from the boxcut in Pit ll4 will be <br />moved to OB ~~ 8 location, this will replace reference <br />to location 20 which was in error. <br />(b) In Pit ~f2 overburden from cut 4110 will be moved to <br />cut 11 9, not X19 which reference was in error. <br />(c) Table V-I pages are out of order and page V4-C will be <br />re-numbered page V4-B and vice versa to restore this <br />table to proper chronological order. <br />2. The narrative reference to a minimum rib thickness of 6" <br />will be changed to 9" to conform with The Bureau of Mines <br />recommendation for a rib thickness of 1/6 the seam thickness <br />which in this case is 54". However, for additional safety <br />and to reduce the possibility of subsidence rib thickness of <br />12" as shown in drawing V-9 will be utilized. in most cases. <br />3. Table V-2 will be replaced with a revised table which lists <br />a water truck. <br />4. The request for the five year permit term is based on a 4 <br />year mining schedule as shown in table V-1 with an additional <br />year for reclamation work as shown in table V-3. <br />5. The auger operation will be concurrent with excavating, <br />coal removal and backfilling operations in each pit. <br />After approximately 100 feet of highwall is exposed, the <br />auger machine will begin removing coal which will be <br />temporarily stockpiled in the pit and removed on a daily <br />basis. <br />Backfilling will begin immediately from excavation in the <br />next cut going to the backfilled area between the auger <br />machine and the coal outcrop line with no appreciable delay <br />to backfilling operations. <br />The auger operation will move in a continuous manner along <br />the highwall into each subsequent cut excavated with back- <br />filling operations being conducted in the preceding cut <br />that has been augered. <br />.~ 3.9 <br />