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<br /> <br />London Mountain Clean Up <br />July 2025 <br /> <br /> <br />Exhibit L Reclamation Costs <br />The operation will have a bond to cover the worst-case reclamation scenario. The worst-case <br />reclamation scenario is based on the maximum disturbance area and greatest quantity of material that <br />will need to be moved. <br />Reclamation at this stage will include the removal of 10,000 CY of material from the active mining area <br />and transferred to the London Mine 110D for processing. The London Mine 110D mining plans will <br />remain unchanged by this application. The haul cost is based on haul truck costs for an average <br />distance of 2.7 miles. Following that transport, 20 acres of ground will need final grading, topsoiling, <br />and revegetation. Grading is assumed to consist of converting from 1.5H:1V slopes to 2H:1V for a 50 ft <br />depth across 500 feet for a volume of 4,630 CY. Topsoiling will be placed at a depth of four inches over <br />20 acres. Vegetation will be planted over all 20-acres. Vegetation monitoring will be maintained for two <br />years. As the operation will not contain any processing area or facilities, no structures will need to be <br />removed. <br />A detailed breakdown of the reclamation cost is shown in Table L-1. <br />Table L-1 East Pod Reclamation Bond Calculation <br />Description Material <br />Quantity <br />Unit Unit Cost Cost <br />Haul active material off to the London Mine <br />110D <br />10,000 CY $5.50 $55,000 <br />Final grading of active mining areas. 4630 CY $1.50 $6,945 <br />Topsoil 20 acres to a depth of 4 inches. 10,756 CY $1.50 $16,134 <br />Vegetate 20 acres. Assume 50% failure rate. 20 acres $450 $9,000 <br />Revegetation for a 50% failure rate. 10 acres $450 $4,500 <br />Two years of vegetation monitoring. N/A N/A $750 $1200 <br />Subtotal $92,779 <br />DRMS cost (28%) $25,978 <br />Total $118,757 <br />* Labor to complete each task is included in each unit cost. <br />