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~,. •. <br />'n~; na~a D. Lamm <br />Govc~nor <br />June 28, 1983 <br />DEPARTMENT OF NATURAL RESOURCES <br />D Mnnle Pascoe, E.ecuime D~rnCl Or <br />S~ember 1, 1983 submittal <br />I II. ~ <br />MINED LAND RECLAMATION DIVISION <br />DAVID C. SHELTO N, birectar <br />Mr. Larry Reschke <br />Blue Ribbon Coal Co. <br />P.O. Box 58 <br />Delta, Colorado 81416 <br />Re: Stipulation No. 1 and 3 to Blue Ribbons <br />Permit C-047-81 <br />Dear Mr. Reschke <br />The Division has completed its review of the above referenced stipulation <br />responses contained in your February 10, 1983 document. The stipulations <br />in question read as follows: <br />BLUE RIBBOIV COAL COMPNIJY SHALL PROVIDE A MAP WHICH SPECIFICALLY <br />INDICATES THOSE INTERVALS OF THE HNUL ROAD CUT SLOPES WHICH EXPOSE <br />GREATER THAN 10.5 FEET OF COLLUVIUI4. IN AUDITION, CUT SLOPES ON <br />THE HAUL ROAD WHICH HAVE HAU VISUALLY PERCEPTIBLE MOVEMENT AT THE <br />DATE OF PERMIT ISSUANCE WILL BE INDICATED UN THE MAP. FUR BOTH <br />AREAS SPECIFIED UN THE MAP AS EITHER GREATER THAN 10.5 FEET FOR <br />COLLUVIAL MATERIAL IN THE HAUL ROAD CUT SLOPES OR EXISTING MOVEMENT <br />ZONES, BLUE RIBBON COAL COt4PANY SHALL COMPLY WITH REC01~1MENDATIONS <br />PERTAINING TO REQUIRED SLOPE TREATMENT INCLUDED IN THE FORTHCOMING <br />HAUL ROAD STUDY. THE REQUIRED FIELD WORK, THE ABOVE-MENTIONED MAP, <br />AND A REPORT DEFINING CORRECTIVE MEASURES, IF SLOPE TREATMENT IS <br />REQUIRED, SHALL BE SUB~•tITTED TU THE DIVISION FOR APPROVAL WITHIN 30 <br />DAYS OF PERMIT ISSUANCE. <br />2. BLUE RIBBON COAL COMPANY SHALL PROVIDE AN ACCEPTABLE STABILITY <br />ANALYSIS OF THE PROPOSED BACKFILLED CONFIGURATION OF ALL MINE <br />FACILITIES ANU THE HAUL ROAD, INCLUDING AN APPROPRIATE MATERIAL <br />SHEAR STRENGTH TESTING KEPORT. THIS STABILITY ANALYSIS SHALL <br />DEMONSTRATE COMPLIANCE WITH THE STATIC SLOPE SAFETY FACTOR <br />REQUIREMENTS OF RULE 4.27.4(1). THIS ACCEPTABLE STABILITY ANALYSIS <br />SHALL BE SUBMITTED TO THE DIVISION WITHIN 60 DAYS OF PERMIT <br />ISSUANCE. <br />Attached to this letter is a memo from Jim Pendleton of our staff who <br />conducted the review of your responses. Your response to stipulation No. <br />1 was adequate and is therefore deemed resolved. <br />423 Centennial Building, 1313 Sherman Street <br />Denver, Colorado 80203 Tel. (303) 866-3567 <br />