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the active pit; (3) volume of material to be drilled, shot and moved during highwall reduction. For the schedule of completion of mining, angering, backfilling and grading operations, see Tables 12-4 and 1L-5. As stated on Page 12-51 of Permit C-80-005, box cut spoil will be graded to blend into existing topography. The placement is needed to reconstruct the drainage in its approximate original channel and at the same elevation. Therefore, there is no stockpiled box cut spoil and no box cut spoil will be hauled to the final pit. 2.05.4 B. Release of Performance Bonds RESPONSE: Peabody has chosen to reconsider its approach to bonding and will not ask for transfer or release of bonds in conjunction with a request for approval of this permit renewal application. Therefore, no additional data will be supplied at this time for the purpose of supporting any phase of bond release. Pages 13-72 through 13-76 are being deleted. C. General Assumptions RESPONSE: • For the purposes of bond calculations, Peabody will adopt the recommended operating engineers construction workers outlined below: Dozer Operator - $17.70/hr - add 5.20/hr fur swing and 5.40/hr for graveyard Scraper Operator - $17.90/hr - add $.20/hr for swing and $.40/hr for graveyard Motor Grader Operator - $17.90/hr - add S.ZO/hr r"or swing and $.40/hr for graveyard Drag Line - $18.10/hr - add $.20/Irr for swing and 5.40/hr for graveyard Water Truck - 516.30/hr - add 5.20/hr for swing and 5.40/frr for graveyard In addition, as specified in the C~1LRD permit renewal adequacy comments, a job efficiency factor of 0.79 is applied to the appropriate project costs. Mobilization and demobilization costs have been added to equipment costs utilized for computing the reclamation cast estimate. In response to comments found on Page 10, 2.05.4(A), Item =L, Peabody has calculated the "worst case" condition of four spoil rows behind the longest active pit which will uccur during this 5 year mine plan 41 Revised 8/27/86