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<br />I. OVERVIEW <br />Edna's liability bond for the 1987-1991 permit term is approximately X7,000,000.00. As this term <br />nears completion, the liability must be re-evaluated to ensure coverage of reclamation during the <br />upcoming 1992-199 permit term. Therefore P&ivI has conducted a study to determine the liability <br />necessary to cover the following required areas of reclamation during the 1992-1996 permit term: <br />• Grading the final pit areas; <br />• Rough grading spoil areas; <br />• Grading of Facility, Road and Stockpile areas; <br />• Smooth (Final) Grading or Scarification; <br />• Replacing topsoil in specified locations; <br />• Revegetation on topsoiled and.non-topsoiled areas including areas affected due to <br />mining, roads/stockpiles, facilities, and powerlines; <br />• Removal of all Facilities; <br />• Removal of Sediment Ponds; <br />• Removal of Powerlines; and <br />• West Ridge Hydrologic Plan. <br />This report details the liability study's assumptions and calculations, and the resulting bond <br />value estimation. <br />II. RESULTS <br />P&i~l's liability evaluation study shows Year 1 (1992) as having the highest reclamation cost, an <br />estimated X6,400,000. This value is based on the costs of the previously mentioned reclamation <br />categories and their associated contingency, professional services and management costs. A <br />cost summary for Years 1 through 5 is contained in the following table. The remainder of this <br />report gives a detailed explanation of the yearly reclamation costs shown in rows 1-10 of Table 1. <br />1 <br />December 12, 1991 <br />