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// PAGE 1 <br />EXHIBIT L <br /> <br /> <br />Raptor Materials, LLC Cogburn Sand, Gravel, and Reservoir Project February 2025 <br />A Regular Impact (112) Construction Permit Application – Colorado Division of Reclamation Mining and Safety, Office of Mined Land Reclamation <br />Exhibit L – Reclamation Costs <br />SECTIONS 1 AND 2 <br />All information necessary to calculate the costs of reclamation must be submitted and broken down into the <br />various major phases of reclamation. The information provided by the Operator/Applicant must be sufficient to <br />calculate the cost of reclamation that would be incurred by the state. <br /> <br />The Office may request the Operator/Applicant to provide additional, reasonable data to substantiate said <br />Operator/Applicant's estimate of the cost of reclamation for all Affected Lands. <br />Summary of Reclamation Costs, Parameters, and Approach <br /> <br />This reclamation cost estimate has been performed for the initial projected 5 years of Operations at the <br />P125 Cogburn site, with the intent of adjusting the Financial Warranty as needed in future Technical <br />Revisions or adjustments to the projected Life of the Operation, if any. The current projected Life of Mine, <br />detailed later in this Exhibit, including reclamation, is 10-11 years. <br /> <br />A summary of project costs is presented below. Costs are separated into operational tasks (direct costs – <br />Table 1) and insurance, bonding, project management, engineering, legal, and administration (indirect costs – <br />Table 2). Indirect costs are calculated as a percentage of either the direct costs or the number of hours to <br />complete tasks. <br />Table 1. Reclamation Direct Cost Summary <br />Task Cost <br />DIRECT COSTS <br />Dewater pit - initial pumping $7,906 <br />Dewater pit - continual pumping $1,595 <br />Grade slope under liner $3,570 <br />Haul liner material from to pit area $19,050 <br />Mix material for liner $2,675 <br />Compact liner $2,343 <br />Haul subsoil from stockpile to pit to grade over liner $127,089 <br />Grade subsoil over liner $44,139 <br />Haul topsoil to pit area $4,937 <br />Spread topsoil on reservoir bank $1,521 <br />Seed banks of pond $15,212 <br />Demo and remove concrete and conveyor $9,975 <br />Mobilization and Demobilization $10,000