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Reclamation of the current mining extents would consist of completing the dike repairs, back <br />filling all disturbed slopes to 3H:1 V, dewatering the pit, and topsoiling and revegetating <br />disturbed areas down to 10 feet below the expected water surface. Excavated material from a 328 <br />foot length of the riparian buffer and the bottom 4 feet of phase 1 would be used for both the dike <br />repair and backfilling of slopes to 3H:1 V. The use of material from these two areas means that <br />no fill has to be imported. A breakdown of costs is included below in the Current Conditions <br />Reclamation Cost Table. <br />Current Conditions Reclamation Cost Table <br />Item Description Cost <br />1 Dewaterin 74.45 acre-ft $58/acre-ft $ 4,317.91 <br /> <br />2 Rip and reclaim access road along riparian buffer <br />1 day $170/day) <br />$ 170.00 <br />3 Dike repair 37,894 CY $1.25/CY $ 47,367.50 <br /> <br />4 Backfilling phase 2 southern slope from vertical to 3H:1 V <br />107,834 CY $1.10/CY <br />$ 172,162.89 <br /> <br />5_ Topsoiling slopes to a depth of 8" across 9.3 acres <br />(10,003 CY $1.10/CY <br />$ 11,002.93 <br />6 Seedin wetland vegetation 1.4 acres $1100/acre $ 1,540.00 <br />7 Seeding d land vegetation 14.4 acres $800/acre $ 11,520.00 <br /> <br />8 Install boulders and armoring along river side of dike and <br />in gully on north end of dike <br />$ 8,000.00 <br />9 Backfill sediment and 4,840 CY $1.10/CY $ 4,840.00 <br /> <br />10 Plant tree saplings within wetland fringe (200 saplings @ <br />1$6.00/sapling) <br />$ 1,200.00 <br />Subtotal <br />1 $ 262,121.23 <br /> DRMS overhead (21% of cost $ 55,045.46 <br />Total $ 317,166.69 <br />The current mine conditions in the case of the Tri County pit are the higher cost in terms of <br />reclamation and therefore should be used as the worst case reclamation scenario for bond <br />calculation. <br />Tri County Technical Revision Sept 07 9