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<br />• 3) Please respond to Issue IV 2. Apparently some of the previously agreed Pit <br />4 haul road slide mitigation work remains unfinished Some amount of <br />bond money, designated for the Pit 4 road mitigation work may be retained <br />if all work is not completed. <br />Res oa nse: The Division has expressed concern that the as-buik <br />configuration of the toe buttress for Slide Area 3 is not entirely <br />consistent with the approved buttress design (10/4/90 Rockcastle <br />Engineering Report submittal). In addition, installation of toe drains to <br />prevent under-cutting or saturation of the toe at Slide Areas 1 and 4, <br />has not been completed (Refer to 11 /27/90 Rockcastle Engineering <br />Report submittal). <br />As indicated by the transmittal letter included with the previous Pit 4 <br />response submittal, Rockcastle intends to complete installation of toe <br />drains at Slide Areas 1 and 4, and modify the Slide 3 toe buttress <br />' consistent with the approved design. It is anticipated that this work will <br />be completed in conjunction with proposed backsloping and pond <br />modification work for Pit 4. <br />SCHEDULE FOR IMPLEMENTATION OF REMAINING CLOSURE WORK <br />AND SUBMITTAL OF BOND RELEASE REQUESTS <br />The following summarizes the anticipated schedule for implementation <br />of remaining closure work for the Grassy Creek Mine and submittal of <br />associated bond release requests. This schedule is contingent on <br />weather and suitable site conditions for the required equipment <br />operations. <br />-16- <br />