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. EXHIBIT L -RECLAMATION COSTS <br />~:~ ~~__~__~~~.-w~:a~W~.~,~. ~ ._ ~_ _ ~__. -,-v .__ ._.- - <br />Table L-1 summarizes Rio Grande's proposed estimate of reclamation costs based on a <br />very conservative scenario for bonding. i As discussed in Exhibit D, the entire mine and <br />facilities area will be dismantled, graded to blend with surrounding topography, covered <br />with 12 to 18 inches of soil, and seeded with a shortgrass prairie/rangeland seed mix. <br />Costs are broken down into the following categories: <br />• Cement Plant <br />• Railroad Spur <br />• Surface Mine <br />Costs are estimated based on R. S. Means Heavy Construction Cost Data, 15n' Edition <br />2001 and unit costs used for comparable reclamation activities described in other recently <br />approved reclamation permis in Colorado, most notably for the Climax Mine (Permit <br />No. M-77-493). Quantity estimates are based on measured take-offs from Rio Grande's <br />current General and Arrangement engineering drawings and detailed material quantities <br />for plant construction cost estimates. Twelve General and Arrangement design drawings <br />were analyzed in detail to confirm process plant dimensions. Demolition and reclamation <br />costs were determined for each of the following plant facilities: <br />Overland limestone belt conveyor <br />Limestone storage bin <br />Coal and raw materials receiving hopper <br />Sandstone storage bins <br />Iron ore storage bins <br />Coal storage bin ' <br />Coal and raw materials belt conveyor <br />Raw materials belt conveyor <br />Coal belt conveyor <br />Raw feed bins <br />Raw mix belt conveyor <br />Raw grinding <br />Raw grinding recycle belt conveyor <br />Blending and kiln feed <br />Main stack <br />Tower <br />Preheatet <br />Raw mill main baghouse ' ' <br />Kiln <br />Coa] grinding <br />RIO GRANDE believes that other less costly options exist that may also serve to meet the landowner's <br />future needs For the property. They include burying inert construction materials at a depth that would not <br />hinder future development of [he site. This and other potential options will be explored during upcoming <br />technical discussions with the agencies, <br />AppExhibitsA-T•APP(ll80)RevBQanuary 17, 202 L-1 <br />