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INTEROFFICE CORRESPONDENCE <br /> To; John Turner <br /> From: Scott Jones <br /> Date: October 2, 1989 <br /> Subject: Inspection of Coal Basin Refuse Pile, Rock Tunnel Waste Pile <br /> and Old Refuse Pile. Third Quarter, 1989 <br /> On September 27, 1989, an inspection was made of the Mid-Continent <br /> Resources Sutey Coal Refuse Pile, Rock Tunnel Waste Pile and Old Refuse <br /> Pile. The inspection was made by myself, a Registered Professional <br /> Engineer in the State of Colorado. I have had over eight years experience in <br /> the design, construction and operation of refuse piles. <br /> The purpose of this inspection was to ensure that the refuse piles were <br /> being constructed according to the approved designs and the requirements <br /> of Rules 4.9 and 4, 10 of the Colorado Mined Land Reclamation Board and <br /> 30CFR 77,215 of the Mine Safety and Health Administration. The inspection <br /> Included observations of structural stability, compaction procedures and <br /> hydrologic control. <br /> Sutey Coal Refuse Pile <br /> At the time of the inspection the Sutey Coal Refuse Pile was receiving <br /> refuse from the preparation plant. The new extension of the refuse <br /> conveyor was in operation. The new conveyor belt extension travels from <br /> the transfer point, northerly approximately 1200 feet, to the new <br /> discharge point. At this point refuse material is discharged onto the <br /> ground. <br /> From the conveyor belt discharge point, a pad has been built with refuse in <br /> order for the heavy equipment to access the end of the belt conveyor. <br /> Refuse material is subsequently pushed from this pad, down the slope, to <br /> the existing edge of the refuse pile, The refuse was being pushed out in <br /> lifts approximately one to one and half feet thick by a �,aierpmar u-o <br /> Dozer. The dozer was making five to seven compaction passes over the <br /> lifts after initial placement. <br />