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• Revegetation Monitoring <br />The DRMS approved Minor Revision (MR -27) for minor changes to the vegetation success <br />criteria of the solid waste disposal or landfill area. The landfill is an area comprised of <br />approximately 8.0 acres and was approved for Phase I Bond Release as a part of SL -4 (Seneca II) <br />in June of 2010. PSCM proposed the vegetation success criteria be changed to that of the more <br />recently disturbed areas associated with the underground mine as described in section 2.05.4 <br />(Reclamation Plan) of the approved mine permit. As a result of the approved revision, only the <br />sagebrush reference area will be used for revegetation success evaluations for the reasons <br />described in section 2.05.4(2)(e)(vi) of the PSCM permit as the pre -mine area of the landfill was <br />predominantly sagebrush. <br />Quantitative sampling was undertaken in August 2014 by ESCO Associates to test for <br />revegetation performance standards in landfill area. The area passed all success criteria therefor <br />an application for Phase II Bond Release may be submitted. <br />• Grazing <br />Cattle (898 long yearlings) were moved on to the PSCM reclaimed area July 29th, 2014 and <br />moved off by September 20th, 2014. See attached 2014 Grazing Plan Map for pasture locations. <br />This grazing scheme resulted in a total of 1,238 AUM's for 2014. <br />Assumptions: <br />• ]long yearling 0.8 A UM, requiring 648 pounds of forage per month. (One A UM <br />requires 810 pounds of forage <br />The AUM usage is calculated using the following assumptions: <br />Assumptions: <br />• Average production 3,410 lbs /acre <br />• Optimal usage would call for half of forage to be grazed. Equal to 1, 560 lbs /acre <br />• Total grazed area 2,541 acres <br />o includes Seneca II area because a single pasture spans across both permit <br />areas (Seneca II area 351.2 acres) <br />• One AUM requires 810 lbs. of forage <br />1,560 lbs /acre (x) 2,541 acres = 3,963,960 lbs. of total forage produced <br />810 lbs. of forage (x) 719 AUM's = 582,390 lbs. of forage required; <br />Therefore, <br />582,390 (03,963,960 (x) 100 = 14.7% utilization, well below the available forage of the <br />PSCM grazed reclaim area. <br />2014 ARR <br />