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compacted by sheeps foot roller. Two underdrains provide drainage control from within the pile. <br />The pile was constructed to an average height of about twenty five feet. Side slopes average <br />4H:1 V, while the crest is crowned to promote positive drainage to the sides. The pile is <br />approximately two acres in size. A terrace may be constructed on the face of the refuse pile in <br />order to minimize erosion potential on the face of the newly constructed refuse pile. Following <br />final grading in 1999, topsoil will be applied and fertilization, seeding and mulching will occur. <br />Other activities which may occur in this area include grading of the remainder of this <br />approximately six acre site to promote positive drainage characteristics, application of topsoil <br />and revegetation. <br />STORM WATER MANAGEMENT CONTROLS <br />No mining, milling or processing is being conducted at this site. Reclamation construction is the <br />only activity occurring at this site. Minimization of sediment delivery to adjacent streams as a <br />result of reclamation activities is the primary focus of this SWMP. Each construction area is <br />individually addressed. <br />GENERAL <br />Most reclamation contractors use heavy equipment requiring periodic maintenance and fueling. <br />Division contractors are required to place berms around any fuel tanks which they bring onto the <br />site. Used oil is contained in a designated area, and is transported off-site for proper disposal. <br />All project areas are kept in a neat and workman-like condition. <br />Old Refuse Pile Project Area <br />Reclamation of the Old Refuse Pile requires removal of substantial quantities of currently in- <br />place coal refuse. As a result, up to six acres of coal refuse on 2H:1 V slopes may be exposed <br />during the construction season. <br />To the extent practicable, excavation is conducted from the top down so that a berm is created on <br />the outside of the cut slope, thereby minimizing the spillage of material down slope. The cut <br />surface is kept in a roughened condition in order to break up potential flow paths of water, and to <br />reduce run off velocities. A road exists immediately above the construction azea, which serves <br />to cut off up slope drainage and divert it from the work area. <br />General, Huntsman and Bear Creek Project Areas <br />Upon completion of refuse removal, topsoil is brought onto the slopes, and is trucked into the <br />roughened refuse surface using a small bulldozer. This serves to bind the soil to the refuse <br />surface. Afrer topsoil application, up to thirty small depressions /hills per acre will be <br />constructed by dozer. These will serve to briefly contain water, to break up flow patterns and to <br />hold small amounts of sediment. Following completion of topsoil application and dressing, the <br />slopes will be seeded and mulched. <br />Huntsman Project <br />4 <br />