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FEB.20.2002 5~43PM <br />TWENTYMILE CORL ENVIRONMENTRL <br />N0.475 <br />P.2 <br /> <br />Twentymile Goal Company <br />February 20, 2002 <br />Totn ICaldenbach <br />Environmental Protection Specialist <br />Division Of Minerals and Geology <br />1313 Sherman Street, Room 21 S <br />Denver, Colorado 80203 <br />RECEIVED <br />FEB 2 02002 <br />Division of Minerals and lietdop~ <br />RE: Minor Revision 02-I76, Placing of Cuttings &oAl Raise Bore Project South Rf Old <br />Pit <br />Permit No. C-82-OS6 <br />Dear Mr, ICaldenbacht <br />Twentymile Coal Company is requestiag a minor revision to the above referenced permit, <br />Which will allow for placement of the cuitiug$ from the raise bore project (NMD Vent <br />Shaft) to the south of the old pit. The storage area is within an area previously disturbed <br />by mining, thus there will be no new disturbance associated with this activity, The <br />cuttings will be blended in during the bacldiIliAg/regrading of the surface facilities. Given <br />the limited volume of cuttings redistributing them over the area scheduled for regrading <br />wiU not impact the posttni>aing topography. <br />I have not included any change to the bond, as this material will just substitute for the <br />yardage originally plarwed to be moved during the backf~lliag/regrading sequence of the <br />reclamation p1aA. The volume of cuttings does not change the amount of material <br />required to achieve the postminirlg topography. The bond estimate for this work is <br />presented on pages i through 1(f) of Volume I-A. <br />if there are questiotls, please contact meat your convenience, <br />Sincerely, <br />Ca~i?~;~ <br />Richard Mills <br />Environmental Mapager <br />File:I;en\env\\revision\minotrevlsion\\mA2-1'16 cover letter <br />29515 ROUTT OOUprTV ROAD Y27, OAN CREEK CO 60497 PHONE: (970) 97W500 fAk (970) 979-0050 <br />