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Prince Albert Mine 110(d) Permit Application Exhibit U - EPP <br />U (6.b.la) Waste Pile Reclamation <br />The waste piles will be checked for proper slope configuration and all areas finish graded to a maximum <br />slope of 3H:1 V during final reclamation. The final disposition of each waste pile is listed below. <br />The Primary Waste Pile will be used as a source of backfill material for the decline excavation and as an <br />initial cap material for the reclaimed ore stockpile area. <br />a) Primary Waste Pile - A medium -sized bulldozer will be used to push waste rock into the decline <br />excavation to backfill the hole and bring the area up to final grade. Waste rock will also be pushed <br />from this waste pile to form a cap of at least two feet thick over the cleaned up ore stockpile area. <br />Both locations will be filled or capped in one foot lifts and the dozer used to compact each lift during <br />placement. The remainder of the waste rock at the Primary Waste Pile location will then be <br />recontoured to meet the maximum slope criteria listed above. Quantities of waste rock to be moved <br />and push distances are listed below: <br />a. Backfill Decline: A total of 1,000 cubic yards will be pushed an average distance of 150 feet. <br />b. Cap Ore Stockpile Area: A total of 1,000 cubic yards will be pushed an average of 250 feet to <br />backfill the ore pad sump and cap the ore stockpile area. <br />The Secondary Waste Pile will be checked for proper slope configuration and all areas finish graded to a <br />maximum slope of 3H:1 V during final reclamation. <br />U (6.b.2) Reclamation of Decline Portal <br />The Prince Albert Mine decline adit and approach ramp will be backfilled with approximately 1000 cubic <br />yards of waste material. This backfill material will be pushed by bulldozer an average distance of 150 <br />feet from the nearby Primary Waste Pile. The waste rock material will be placed in lifts of no more than <br />one foot in depth and be track - compacted during placement. Final grade for the decline and ramp backfill <br />will result in a slight hump or elevation to the ground surface over the decline location in order to prevent <br />surface water from ponding over the backfilled opening. <br />U (6.b.2a) Alternate Reclamation of the Decline Portal <br />If an alternate closure option to establish a bat habitat is favored by the USBLM and Colorado Division of <br />Wildlife, a steel bat gate will be constructed on -site and placed on the Prince Albert Mine decline portal. <br />The gate will cost an estimated $2,400 to fabricate and install. <br />Rimrock Exploration & Development Page 24 of 39 <br />