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<br />CHRONOLOGICAL HISTORY OF REVEGETATION <br />The areas revegetated prior to and in 2010 at the Seneca II Mine are shown on the Seneca 112010 Annual <br />Reclamation - Seeded map in the exhibits section of this report. <br />SEDIMENTATION POND SURVEYS <br />SCC is required by Permit C-80-005 to monitor sedimentation ponds for sediment storage capacities on <br />varying schedules. Per page 7-333 in the PAP, capacity surveys at Ponds 002 and 003 are required every 5 <br />years and at Ponds 004 and 008 every 2 years. Since ponds 004 and 008 were surveyed in 2008, they were <br />resurveyed in 2010, while ponds 002 and 003 (last surveyed in 2006) will not be resurveyed until 2011. This <br />schedule provides a sediment yield history and gives advance warning to operations personnel when sediment <br />clean-out work is required. <br />In accordance with Rule 4.05.6(11)(c), SCC visually inspects each pond a minimum of quarterly each year. <br />During these inspections, any drastic change in sedimentation storage or sudden increase in a sediment delta <br />at the inlet to the pond would be detected which could require mitigation. <br />Based on the 2006, 2008 and 2010 surveys, all sediment ponds have sufficient sediment storage. Additionally, <br />all ponds have been discharging in compliance with the approved NPDES permit effluent limitations. Yearly <br />sediment delivery estimates to the ponds are considerably less than originally calculated, since the areas in <br />these watersheds have now been reclaimed and revegetated. <br />• The following table lists the 2006, 2008 and 2010 surveyed capacities of Seneca II sediment ponds: <br />Table 10.3 <br />Sediment Pond Capacities <br />Pond <br /> <br /> <br />Number 2006 <br /> <br /> <br />Capacity 2008 <br /> <br /> <br />Capacity 2010 <br /> <br /> <br />Capacity <br />Minimum Allowable <br />Water Storage <br />Pond 002 171.9 NA NA 106.9 ac.ft. <br />Pond 003 3.7 NA NA 2.1 ac.ft. <br />Pond 004 5.6 5.5 5.5 3.0 ac.ft. <br />Pond 008 6.2 6.3 6.1 2.9 ac.ft. <br />PECOCO 21.7 NA NA NA. <br />From the past history of sediment delivery to all of these ponds there is adequate sediment storage capacity <br />available. These ponds were approved as permanent. <br />STOCK TANKS <br />There are 13 stock tanks in the Seneca II mined/reclaimed area and are all classified as permanent and are <br />certified annually. No new stock tanks were constructed during the 2010 season. <br />WILDLIFE MONITORING <br />• Seneca Coal Company contracted ICF International ( formerly Jones and Stokes) to conduct wildlife <br />monitoring at the Seneca 11 mine. The work included: <br />4