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• Thie grazing scheme resulted in 286 animal unit months (AUMS) of grazing in the Wadge <br />Pasture, and 120 AUM of grazing in the Pecoco Pasture. Haled on 1996 Wadge Pasture <br />sampling data, the annual production was 3385 pounds per acre on 300 acres, resulting in <br />1250 AUMS available. The resulting utilization in the Wadge Pasture was 22 percent. The <br />resulting utilization for the Pecoco Pasture (assuming 1765 lb/acre production, 210 acres) <br />was 26 percent. See the 1996 Annual Revege to Lion Monitoring Report for discussion <br />concerning the effects of grazing in the Wadge Pasture, (ESCO, 1997). Assumptions: 1 long <br />yearling = .8 AUM, requiring 698 pounds of forage per month. One AUM requires 810 pounds of <br />forage. <br />Chronological History of Revege to Lion <br />Areas revege [a ted from 1977 through 1995 at the Seneca II Mine are shown on Exhibit 95.4, <br />Chronological History of Revege to tion Activities in the 1995 Annual Reclamation Report, SCC <br />1996. <br /> Sedimentation Pond Surveys <br /> SCC is required by Permit C-80-005 to monitor sedimentation ponds Eor sediment storage <br />• capacities. In TR~16, CDMC approved th e following frequency schedule to conduct sediment <br /> eu rveys for the ponds a[ Sen eca II Mine. <br /> Sedimentation Pond Frequ ency Next Scheduled Survey <br /> 002 Once Every 5 Years 1998• <br /> 003 Once Every 5 Years 1998• <br /> 004 Once Every 2 Years 1997+ <br /> 008 Once Every 2 Years 1997+ <br /> + SCC recommends the next su rvey for all four ponds be completed in 1997. <br />This schedule provides a sediment yield history and gives advance warning to operations <br />personnel when sediment clean-out work is required. In accordance with Rule 9.05.6(11)(c), <br />SCC 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 mitigation. No <br />sediment clean-out work was conducted during 1996 for the sedimentation ponds at Seneca II <br />MSne. Sediment Ponds 002, 003, 009, and 008 were surveyed in July 1993 Eor sediment <br />determination. As eta ted in the past, ponds containing water are very difficult to survey <br />5 <br />