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Exhibit Page 37 <br />CALCULATIONS: <br />Location <br />Area <br />Notes <br />M <br />Cost <br />Backfilling <br />Backfilling from stockpiles (incl. berms) and <br />scarif in if needed <br />$1000 /acre <br />(acres) <br />$4,800 <br />Grading <br />m <br />$750 /acre <br />CL <br />$3,600 <br />Soil <br />Placement <br />Haul and spreading of soil on backfilled, <br />scarified areas <br />= <br />m <br />a <br />$3,570 <br />a <br />Total requiring reclamation work at any one time <br />11.9 <br />Life of <br />4.8 <br />4.8 <br />11.9 <br />11.9 <br />20,895 <br />operation <br />DRMS Administrative Costs <br />35% <br />7,313 <br />Reclamation activities: <br />1. Backfill will generally be pushed less than 400 feet and on a level path or path not greater than 2% <br />uphill, and will be required on 75% of all acreage. <br />2. Soil will generally be pushed and spread downhill at a path of 2% or steeper, and less than 300 feet. <br />3. Seeding and mulching will be done mechanically, on slopes of 2HA V or flatter. <br />4. Roads will be 20 -26 feet in width (including shoulders) and will have an average of 4 to 10 feet <br />disturbed width (30 feet total), which will be reclaimed as roads are built. <br />5. Assume that 50% of area seeded will require reseeding, and that 25% of area seeded will require <br />weed control. <br />6. Permanent berms and swales on downhill (south) side will be constructed as part of initial stripping. <br />Shaping (final contouring) and placement of topsoil will be done at that time and are therefore not part <br />of the cost of reclamation. <br />7. Permanent berms and swales will be seeded at time of initial construction (with seasonal <br />consideration), but for conservative bonding, revegetation of these most of these areas is included in <br />the estimate. Berms and swales will not exceed five (5 %) of total affected area. <br />8. The portion of the backfilling associated with stripping has not been included, as the cost would not be <br />incurred if the stripping was not done. <br />9. Revegetation is based on using existing soil types for the entire site (other than roads), and vegetating <br />appropriately. Revegetation includes costs of soil amendment, mulching, and fertilization (if used). <br />10. If there is a surplus of soil, backfilling will be accomplished using the nearest source of available <br />material, or soil thickness will be increased accordingly. In particular, permanent berms at lower end <br />may be constructed entirely of stripped soil. <br />11. Grading and contouring includes work to shape sediment basins. Except for the Work Area, basins <br />will not require topsoil placement or vegetation, and will not exceed 5% of total affected area. <br />12. Roadways will not require scarification, final contouring, or topsoil placement, and will be constructed <br />to county standards as mining progresses. Roadways will require approximately 8% of total area. <br />13. All acreages are estimates. <br />14. These figures represent present (2013) costs using contracted equipment and personnel. <br />Activity <br />Description <br />Unit Cost <br />Acres <br />Cost <br />Backfilling <br />Backfilling from stockpiles (incl. berms) and <br />scarif in if needed <br />$1000 /acre <br />4.8 <br />$4,800 <br />Grading <br />Grading, contouring, and final grading and <br />scarif in if needed <br />$750 /acre <br />4.8 <br />$3,600 <br />Soil <br />Placement <br />Haul and spreading of soil on backfilled, <br />scarified areas <br />$300 /acre <br />11.9 <br />$3,570 <br />Seeding <br />Seedbed prep, seed, mech. seeding, <br />mulching and 50% reseeding <br />$750 /acre <br />11.9 <br />$8,925 <br />20,895 <br />DRMS Administrative Costs <br />35% <br />7,313 <br />TOTAL <br />$28,208 <br />