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Exhibit L - RECLAMATION COSTS <br /> This reclamation cost estimate is based on the assumption that no more than 10.0 acres will need some <br /> form of reclamation at any one time. Of these 10 acres,approximately 7.0 acres would be stripped, <br /> active mining and processing areas and the remaining 3.0 acres would be,partially reclaimed area. This <br /> is based on a worst-case scenario i.e.,at a time when the greatest area will need some form of <br /> reclamation as shown on Map Exhibit C-1 Mining Plan Map. The plan allows for a maximum of 300 <br /> linear feet of bank sloping to backfill grade the mining face from near vertical to 3h to 1v as proposed in <br /> the Reclamation Plan.A D6T Cat dozer will be used to backfill the slopes using material generated by <br /> mining and/or brick waste and pushing that material up against the face to create the 3h to 1v slope. <br /> (15'high bank—12.5 yd/ft). The volume of material needed to backfill 300 feet of mining face to a 3H to <br /> 1V slope is 300'x 12.5 yd/ft=3,750 cubic yards. <br /> A dozer or motor scraper will be used to place the root zone and resoil the area. A 140G Cat motor <br /> grader will be used to shape the seedbed,the slopes and the resoiled areas. We have included the cost <br /> to reduce the working face highwall using a D6T Cat dozer from near vertical to 3:1 if mining ends <br /> prematurely. The table below outlines the various areas of disturbance under this scenario. These <br /> figures are then used in the calculations for the bond amount. <br /> TABLE K <br /> ACTIVITY TOTAL SOIL DEPTH <br /> REBOILING 7.0 AC 3" <br /> ROOT ZONE PLACEMENT 7.0 AC 3" <br /> GRADING SEEDBED 7.0 AC <br /> NEEDS SEEDING 10.0 AC <br /> RESOIL @ 3" 2,283 Cu.Yds. <br /> ROOT ZONE @ 3" 2,283 Cu.Yds. <br /> BACKFILL SLOPING 3,750 Cu.Yds. <br /> SECONDARY REVEGETATION 25% <br /> ESTIMATED UNIT COSTS FOR RECLAMATION ITEMS: <br /> UNIT COST <br /> i Revegetation includes grass seed mix,mulct <br /> 1. .a_. seop'gie. and labor -- Formatted:Indent:Hanging: 0.4",Space <br /> m <br /> i Before: 4.7 pt,Outline numbered+Level:1+ <br /> to df4broa dcast seed.. .. .. ......... ............... ..... .... .... ..$650.00/AC.** i Numbering Style:1,2,3,...+Start at: 1+ <br /> 2. Re-spreading soil and/or growth media i Alignment:Left+Aligned at: 0.08"+Indent <br /> with 627-E Motor Scraper,Haul distance less than 1600 0.570/YD3 I at: 0.48",Tab stops: 0.48",Left <br /> 3. 3 Formatted:Indent:Left: 0.48",Space Before: <br /> Backfill slopes,D-6T Dozer,max push distance less than 185 ..... ... .... .0.531/YD 4.7 pt,Tab stops: 0.48",Left <br /> 4. Grade and shape seed bed area,140G motor grader....... ......... ....$59.54/AC <br /> Summit Brick&Tile Company - Native/Pierre Mine 126/10 2020 <br />