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1s our nu,st recent 11')')')1 permit untrndntc•nt recLunstion cstintute tl.xhihtt I.) indiaurs. <br />3U,110tl cubic ~•;vds of overburden trill be necessary to cotttpletc backtill grating. 1\'e <br />estimate thus it will take 1 ~0 hours of scraper time at $ I ~{0.l)0 per hour. ±'_ hours of motor <br />grader time at 51 US.UO per hour. ant :>'? hours of bulldozer time at $ I i(~.UO per hour to <br />complete the pit b.tckfilling operations. (Pli•:tse note that these hooch rates arc based on <br />our recent and ongoing contracts fife minim cyuipmcnl.! I hrrrli,rc. tee estimate the cost <br />to rr-gruic pit tcalls to be $~6,iG3. <br />'f:uk b 11112 <br />four 11tsk ~~? ttc,rkshcet eslimales cost: to apply (, inches of topsoil oyrr 67 acres using a <br />hulldwer. :\s frith placement of backtill. the bulldozer is nut the most el7icient piece of <br />cyuipntent to accomplish this task, given the rclativcly long push distances. 1"opxtil <br />Unrkl,iles at the sublrrt mine, and ut all of our „thee mines, :see purposely placed in <br />hKatiom tthrrr minim artiyin trill not disntrh the stockpiles during minx lilt. As such. <br />distances that topsoil must be moved for tints! placement typiralh exceed j00 feet. The <br />Caterpillar Perli,rnttutcc liandhook. f~.dition 3>, indicates th;u a bulldozer is mast el'licient <br />:st push distances of Icss than 32R feet. whereas a paddle wheel scraper is more et7icient <br />at placement distances Ih,m 3?K legit to appruxirnately :.?00 tcet- <br />Also your tyorkshret rafcrrnces I:xhihit L of the currant recl;nnxtion permit as the source <br />oflhe topsoil tolume. Ilutyecer, f:xhibil L does not list a topsoil colunte. An sttachntrnt <br />to correspondence from .lames I)ille'I)\t(i dated :\pril d. ?OUO presrnU estimated <br />reclamation costs and lists the replaccntent topsoil volume ns d ~,Ot10 cubic yards. \1'c <br />tte!ieye this volume is :s fairly accurue estimate of ayailahle top,uil fbr reclamation. <br />I'lcase be advised that naturally uccumng topsoil depths in this area Jo not neccssarilc <br />accrage G inches. :111 ;available topsoil is removed and stockpilrJ prior to mining <br />disturh:uue and gill hr spread eyenh across areas to he reclaintcJ. <br />tiimilur a, backtill placentrnt. paddle wheel scrapers can be used most el7icienth ti)r <br />moving the topsoil and the majority of placement. with tt motor grader autd bulldozer useJ <br />tier lino! grading. \\'c estinutte Ih:tt it will take If;G hours of scraper time at SIdt1,U0 per <br />hour. U6 hours of nr.,tor ~radcr !irae at S!tt>.OU rr hour. and ~_' hours of htil <br />b p Wuzcr t:ruc <br />,u ti!>6 nU her hour to complete the pit hackfilling operations. lhercli,re. we estimate the <br />cost t,~ !doer topsoil across the disuuhed acreage t,, he $41.17. <br />"Tusk ~ (llli <br />four rrtrgctnliun ttnrksheet I l:uk ,r?) pnni,lcs rose. relates! to the applicauun of u•rd <br />arn,ss .Itsturhed arras. \\'e have obtained a rust quote Innn I alcun Mowing. our seeding <br />contractor, li,r Ihr exact same seed mixture as that specified on your worksheet. I alcun <br />\lotving's quoted cost per acre li,r the specified seed mixture is SI.+Y.r7, compared to the <br />ttnrksheet cost ut $2'_R.SR. In aildition, our cunnt reclamation permit lists 6> acres of <br />disturbance ,shish should t+e applied to the subject worksheet, rather than 63. Using our <br />obtained recd mixture cost, 6~ :rues a, be reclaimed. and all other costs on the worksheet <br />the "'I otal lob Cost" taxdd he M-16.'>U0. <br />