2012-08-13_REVISION - M1982090 (2)

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Given that the 14L portal is the only means of access to the underground workings of the Camp Bird Mine, CBCI intends to maintain the portal as a permanent feature on its property. Therefore, destruction of the portal or snow shed is not included in the reclamation plan and costs in Section 6.0. Materials placed into the cut -slope are expected to be chemically similar to the materials borrowed for reclamation and placed as a cap. However, a brief description and cost is included in Section 6.0 to ensure that the slope and composition of the cut -slope conform with DRMS reclamation standards. Section 6.0 Reclamation Plan and Costs Aside from the industrial prospects, CBCI believes that ensuring permanent access to the underground workings of the Camp Bird Mine enhances the historical and recreational values of Ouray County. Also, CBCI believes that the resulting landscape and land uses (industrial and recreational) from all of the activities proposed in this TR will be a long term improvement to its property, whether underground mining commences in the future or not. Therefore CBCI desires to maintain the sedimentation pond, discharge conveyance, equipment storage building, and the 14L portal (including the snow shed) as permanent features on its private lands once constructed. However, once mining activities are completed, CBCI will spread the stockpiled cap material (from Stockpiles 1 -4) over the graded areas (GA1 and GA2) shown in Figure 2. The cap materials will be a minimum of 1 foot thick over the reclaimed surface, and the reclaimed surface will be less than, or equal to, a slope of 1:2 (V:H). The total surface area comprising the proposed stockpiles (1.2 acres), graded areas (2.2 acres), and cut - slope for solids disposal (0.2 acres) is 3.6 acres. As shown in Figure 2, the exact perimeters of the various stockpile locations and graded areas are sinuous and subject to slight modifications as conditions in the field dictate. Therefore a conservative 25% margin of error should be applied to the reclaimed surface. After applying the margin of error, the resulting total surface area to be reclaimed is 4.5 acres. The total volume of cap material to be distributed over the graded areas is approximately 11,200 cubic yards. Therefore, the total volume of stockpiled cap materials will be adequate to provide an average cap thickness of 1.5 feet across 4.5 acres. Spreading the cap material will be relatively low cost considering that all of the materials are contained on site. CBCI is using a unit cost of $3.10 per cubic yard to distribute the cap materials across the 4.5 acre surface. The unit cost takes all costs into account, including but not limited to equipment mobilization, time, materials, personnel, insurance, etc. To scarify the reclaimed surface and spread seed, CBCI is using a simple unit cost of $2,500 per acre, which provides for the manual labor of hand broadcasting the seed over 3 seasons to ensure adequate vegetative growth equal or better than the present condition. The proposed seed mix to be used for reclamation is a "Native Ecomix" desinged for a high altitude setting in the San Juan Mountains from Southwest Seed Company: • Broadcast Rate: 20 lbs /ac; Unit Cost: $5.25/lb • 35% Slender Wheatgrass (7 lbs /ac) • 35% Mountain Brome (7 lbs /ac) • 10% Blue Bunch Wheat Grass (2 lbs /ac) • 10% Canadian Wild Rye (2 lbs /ac) • 10% Lewis Flax (2 lbs /ac) Technical Revision, Camp Bird Mine 112 Permit (Permit No. M -1982 -090) Page 10