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P. ~-• <br />5 <br /> <br />blue <br />coon <br />company <br />April 14, 1987 <br />III IIIIIIIIIIIIIIII <br />blue ribbon coal company <br />p.o. box 1352 <br />palisade, Colorado 81526 <br />(303) 464-7951 <br />RECEIVED <br />APR 1 E 1987 <br />Susan J. Mowry, Reclamation Specialist <br />Colorado Mined Land Reclamation Division <br />1313 Sherman Street, Room 423 <br />Denver, CO 80203-2273 <br />Re: Mine Bench Regrading, File No. C-047-81 <br />Dear Susan: <br />MINED LANO <br />RECLAMA710N DIVISION <br />As discussed over the phone last week, additional diagrams are being submitted <br />to further describe the proposed work on the portal bench. Access to the mine <br />site was limited by a slide across the road in February; therefore, a more <br />detailed survey was not feasible. <br />The first diagram shows existing and regraded contours on the bench as well <br />as where cross-sections were taken. The second diagram shows cross-sections <br />on 50' centers along the permanent diversions. These cross-sections correspond <br />to channel profile submitted in a diagram January 27, 1987. In addition to <br />excavation from the diversion, a minor amount of excavation will be done along <br />the outside edge of the bench to facilitate drainage. The excavated material <br />will be used to establish a mound between the diversion and the edge of the <br />bench and to increase the grade above the diversion. <br />In response to questions concerning excavation of refuse, none will be excavated. <br />The north end of the diversion will be excavated down to approximately one <br />foot above the original yard. The full length of the diversion is east of <br />the limits of refuse fill during the bench re stabilization project; therefore, <br />the only refuse below the ditch is the coal used as a pad on the bench. <br />Let me know if there are any further questions. <br />Sincerely, <br />~~ ~~~ <br />Larry Reschke <br />Project Engineer <br />LMR:jp <br />Enclosures <br />