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• yearling requires 64B pounds of forage per month, a total of 168,817 pounds of forage were <br />consumed (648 pounds of forage x 1.67 months x 156 yearlings). The 1992 forage production <br />in the Wadge Pasture as determined from 1992 revegetation monitoring was estimated to be <br />999,462 pounds (314 acres x 3183 pounds per acre). The 1992 estimated forage utilization <br />by livestock in the Yadge pasture was 17 percent (168,817 pounds of forage consumed/999,462 <br />pounds of available forage). Approximately 500 ewes were run on reclaimed areas at [he <br />Seneca Mine II in spring 1992. In fall 1992, approximately 500 ewes were also run on <br />reclaimed areas for 20 days. Inaccurate records at the mine precluded a determination of <br />forage utilization for the spring and fall sheep grazing. A new pasture (see PECOCO <br />pasture on Exhibi[ 92.5) was established in 1992. This pasture will be available for <br />grazing in 1993. <br />Chronoloci wl History of Revegetation. Areas revegetated prior to [992 at the Seneca II <br />Nine are listed by field number in Table 6 and shown on Exhibit 90.3, Chronological History <br />of Revegetation Activities of the 1990 Annual Reclamation Report (PCC, 1991) or are <br />reported in the 1991 Annual Reclamation Report (PCC, 1992) and shown on Exhibit 91.4 of the <br />1991 report. <br />• Sedimentation Pond Surveys <br />Peabody is required by Permit C-80-005 to monitor sedimentation ponds for sediment storage <br />capacities. In TR-15, CNLRB approved the following frequency schedule to conduct sediment <br />surveys for the ponds at Seneca II Xine. <br />Sedimentation Pond Frequency Next Scheduled Survey <br />002 Once Every 5 Years 1993 <br />003 Onee Every 5 Years 1993 <br />004 Once Every 2 Years 1993 <br />008 Once Every 2 Years 1993 <br />This schedule will provide a sediment yield history end allow advance warning to operations <br />personnel when sediment clean-out work is required. In accordance with Rule 4.05.6(11)(c), <br />Peabody visually inspects each pond a minimum of quarterly each year. During these <br />inspections, any drastic change in sedimentation storage or sudden increase in a sediment <br />• delta at the inlet to the pond could be detected which would require mitigative action. <br />No sediment clean-ou[ work was conducted during 1992 for the sedimentation ponds et Seneca <br />8 <br />