Laserfiche WebLink
• Arrumptionr: 1 brig yearkug = 0.8 AUM, requiring 648 pouudr of forage per month. (One AUM requinr <br />810 pouudr of forage). <br />The AUM usage is calculated using the following assumptions: <br />Arrumptiour. <br />Average production = 2,21916r./acre (see 2004 Revegetation Mauitoriug Report) <br />Total reclaimed aria = 2213 acrer <br />One AUM requirer 810 lbr. of forage <br />2,219 Ibs/acre (x) 2213 acres = 4,91Q6471bs. of total forage produced <br />81016x. of forage (x) 580 AUM's = 469,800 Ibs. of forage required; <br />Therefore, <br />469,800 (/) 4,910,647 (x) 100 = 9.6 % utilization of the total Seneca II reclaimed area <br />Or <br />2,2191bs/acre (x) 1,581 acres = 3,508,2391bs. of forage produced in pastures grazed <br />8101bs. of forage (x) 580 AUM's = 469,80016x. of forage required; <br />Therefore, <br />469,800 (/) 3,508,239 (x) 100 =13.4 % utilization of the Seneca II pastures grazed <br />CHRONOLOGICAL HISTORY OF REVEGETATION <br />• Total areas revegetated prior to and in 2005 at the Seneca II Mine are shown on the Seneca II 2005 <br />Annual 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. <br />This schedule provides a sediment yield history and gives advance warning to operations personnel <br />when sediment clean-out work is required In accordance with Rule 4.05.6(11)(c), SCC visually <br />inspects each pond a minimum of quazterly each yeaz. During these inspections, any drastic change <br />in seduentation storage or sudden increase in a sediment delta at the inlet to the pond could be <br />detected which would require mitigation. <br />Based on the 2005 survey, all sediment ponds have sufficient sediment storage. Additionally, all <br />ponds have been discharging in compliance with the approved NPDES permit effluent limitations. <br />Yearly sediment delivery estimates to the ponds aze considerably less than originally calculated, since <br />the azeas in these watersheds have now been tedaitned and revegetated. <br />i• <br />