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KERB COAL COMPANY <br />MARK MINE <br />PARTIAL BOND RELEASE <br />RESPONSES TO REMAINING TR-12 ADEQUACY CONCERNS <br />'Che original DMG adequacy cottutseats are noted is Italia followed by either a summary of <br />current status if the cono..rn hu ban addraxd or the appropriate raportx. <br />t) 73x amts in the proposed bong Pinar ! release misu~r maul br deliruated on a disturErd area <br />map. Tax map should si»rsr t~Ort amu that !salt brrn reclaimed (twckftllyd, topsoiled or <br />seeded) since six implementation of dx interim regulations ort August J, 1977. <br />Raooose The Sur Mine Ara Actual Reclaimed Topography Map, (Map 47), has been <br />updated and revised to refietit the following changes: <br />1) Removal of se+ual small lenses of remaining spoil in the former 720 Pit <br />area identified by tissal surveying, aerial photognphy, and mapping and <br />p1aar:Fat of this material a the toe of the regnded west pit slope in <br />order to furthez reduce overall slops in the trnsitioa zone between the <br />regraded was slope sad the lowu drainage ua <br />2) Plaumemt of 4 far of suitable cove material in the southwest corms of <br />the forttur 720 Pic area to address a potential ovuburden toridry concern <br />assodued with a elevated SAR value encountered during final overburden <br />suitability samplittE <br />3) Regrading of nay area acceding the slope design aiteria <br />4) Ddineuioa of all area covued by the requested partial bond release <br />issduding the rodaimed Marr Pit area <br />The revised map aooosapaaies these responses for replacemmc is the permit appliation <br />doasmeat. I< should be noted that given requirements for supplemental backfillistg of <br />the forma Pit 1 area under the settlement agreement (the agreement) with DMG and <br />OSMRE, the Pit 1 redsimed am u shown oa this map will be revised following <br />cosnpledon of the required supplemenul arthworlr. <br />1J lhr Division will need a fora! mpoa-aphy map chat includes all six arras jot tix land relearc <br />ngeeest Also, dse Devision sill need an isopach map showing tJx difference in eletation <br />betsras the as•rerGti»sed and premmirsg mpograpby for aU arms of the bond rr/eax 71x <br />isopae6 map of Pit Na 1 sasbmitted mirk dse application is 6arefy legible. These maps are <br />Herded m demortsvate chat all spoil has 6rar used m backftll the pits and rJnt dxrc is no <br />caress spoil 7fiese maps msnt irsrlsede aU arras of the mine including rIx 710 Pit, Pit No. 1 <br />and aU backfsUed areas in beswerss tlx 720 Pit and Pit 1. <br />Ran Aa isopach trap of the forma 720 Pic arcs has previously been provided and <br />identiSed omsrres><es of remaining spoil have been addresud u noted in the previous <br />resptnnese. Additioesal mappiog of the othu area noted is ao longer required u any <br />ezoess spoil issues have bean addressed through the agreement. <br />rrn.A4eris le. • P.a ea< n+o/r • ste~lo.t Sprrosgs, Colorado inn(3031 ar9-sz~o <br />