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RECLAMATION COSTS EXHIBIT L <br /> The maximum bond reclamation scenario will occur when the north platform above the Denver <br /> Water tunnel is mined out. This area will require the largest amount of backfill. At this point in <br /> time, Asphalt Paving Co. will have the 1.3 million cubic yards of material available to backfill <br /> the north platform and construct the vegetation islands along the quarry slopes. Topsoiling will <br /> involve the placement of screened topsoil on disturbed areas. Revegetation of disturbed areas <br /> using the approved seed mixes will be completed once all backfilling, grading, and topsoiling is <br /> done. Broadcast seeding or hydroseeding will be used, and mulch applied as well. <br /> Backfill <br /> Maximum bond volume of backfill needed 1,000,000 CY <br /> Topsoil <br /> North platform (12 inches over 10.5 acres) 16,940 CY <br /> Processing area(12 inches over 126 acres) 203,280 CY <br /> Vegetation islands 10,000 CY <br /> Material available on site 1,300,000 CY <br /> The permanent facilities that needed to be removed in the worst case scenario of this exhibit <br /> include the asphalt parking lot and the facilities listed in Table L-1. All other equipment on site is <br /> portable. The slide reclamation will be complete well before the worst case scenario takes place, <br /> and as such will be more than covered by the bond. <br /> The backfill requirements for the bond calculation were determined using CAD software,the <br /> volume report is attached. <br /> Ralston Quarry CrM I o kki and An«ia,a.PLIA' <br /> January 2019 L-1 <br />