2010-03-19_REPORT - C1994082 (9)

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One (1) AUM requires 8101bs. of forage 45 days (x) 112 animal units = 5,040 animal days (/) 30 days = 168 animal months (x) 1.0 = 168 AUMs 1,8041bs/acre (x) 798 acres = 1,439,5921bs of forage available 810 lbs (x) 168 AUMs = 136,080 lbs of forage required Therefore; 136,080 (/) 1,439,592 (x) 100 = 09.4 % utilization of the entire Yoast Reclaim. SEDIMENTATION POND SURVEYS SCC is required by Permit C-82-057 to monitor sedimentation ponds for sediment storage capacities. In accordance with Rule 4.05.6(11)(c), SCC visually inspects each pond a minimum of quarterly each year. During these inspections, any drastic change in sedimentation storage or sudden increase in a sediment delta at the inlet to the pond could be detected which would require mitigation. Based on the 2009 survey, all sediment ponds have sufficient sediment storage. Additionally, all ponds have been discharging in compliance with the approved NPDES permit effluent limitations. Yearly sediment delivery estimates to the ponds are considerably less than originally calculated, since significant portions of these watersheds have now been revegetated. The results of the annual survey are shown on Table 09.6, Sediment Pond Capacities. • STOCK TANKS No stock tanks were constructed in 2009. WILDLIFE MONITORING Seneca Coal Company contracted Jones and Stokes to conduct wildlife monitoring at the Seneca Yoast mine. The work included: 1. Monitoring known Sharp-tailed and Sage grouse leks and checking for new ones (April 28 and 30, 2009) 2. Checking golden eagle nests (April 28, 2009) The 2009 survey is presented in the attached Wildlife Monitoring Report. LITERATURE CITED 2008 Annual Reclamation Report, Yoast Mine, Routt County, Colorado. Submitted to the Division of Reclamation, Mining and Safety in March 2008 by Seneca Coal Company, Hayden, Colorado. Yoast Mine. Permit Application Package, Permit No.C-80-005