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OF/~OC <br />•F; c ~,p DEPARTMENT OF NATURAL RESOURCES III IIIIIIIIIIIIIIII <br />RP ^~g 9Q D Mnme rascoe E.epe,~e D~~oc~or 999 <br />`; ,to ~ MINED LAND RECLAMATION DIVISION <br />• ~2,~ * DAVID C. SHEL70N, Director <br />} /876 # ~ ~ <br />~R,cnartlD Lamm <br />Governor <br />June 28, 1983 <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 />1. BLUE RIBBON COAL COMPANY SHALL PROVIDE A MAP WHICH SPECIFICALLY <br />INDICATES THOSE INTERVALS OF THE HAUL ROAU CUT SLOPES WHICH EXPOSE <br />GREATER THAN 10.5 FEET OF COLLUVIUM. IN AUDITIOtI, CUT SLOPES ON <br />THE HAUL ROAD WHICH HAVE HAD VISUALLY PERCEPTIBLE MOVEMENT AT THE <br />DATE OF PERMIT ISSUANCE WILL BE INUICATED UN THE MAP. FUR BOTH <br />AREAS SPECIFIED UN THE MAP AS EITHER GREATER THAN 10.5 FEET FOR <br />COLLUVIAL l+IATERIAL IN THE HAUL ROAD CUT SLOPES OR EXISTING MOVEMENT <br />ZONES, BLUE RIBBON COAL COMPANY SHALL COMPLY WITH RECOMMENDATIONS <br />PERTAINING TO REQUIRED SLOPE TREATMENT INCLUUEU 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 SUBMITTED 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 BACKFILLEO CONFIGURATION OF ALL MINE <br />FACILITIES AND THE HAUL ROAD, INCLUDING AN APPROPRIATE MATERIAL <br />SHEAR STRENGTH TESTING REPORT. THIS STABILITY ANALYSIS SHALL <br />DEMONSTRATE CUMPLINNCE WITH THE STATIC SLOPE SAFETY FACTOR <br />REQUIREMENTS OF RULE 4.27.4(1). THIS ACCEPTABLE STABILITY ANALYSIS <br />SHALL BE SUBMITTED TU 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 Denver. Colorado 80203 Tel. (303) 866-3567 <br />