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be 3h:ly or flatter. The completed embankment and surrounding disturbed areas will be <br /> seeded and reclaimed in accordance with Peabody's approved reclamation plan. The 007 East <br /> Ditch will be constructed to divert all runoff from the proposed disturbed area into Pond <br /> 007. <br /> All material excavated from the ponding area and adjacent areas as a result of the above <br /> construction will be placed in one of the following locations as determined by Peabody's <br /> field engineer during construction: <br /> 1. The material will be tested for suitability as a plant growth medium, and, if <br /> suitable, be placed in an appropriate topsoil stockpile or direct hauled and <br /> used in a reclamation area. <br /> 2. If the engineer determines the material to be suitable for embankment material, <br /> the material will be placed and compacted within the 3:1 slopes of the <br /> embankment. <br /> 3. If the material is excessive or not suitable for use within the 3:1 slopes of <br /> the embankment, the material will be placed outside the plane of the 3:1 slopes <br /> on the downstream side of the embankment or hauled to an overburden stockpile, <br /> graded into the surrounding topography, and reclaimed in accordance with <br /> Peabody's reclamation plan. This excessive material, when placed on the <br /> downstream slopes, will increase the stability of the embankment by increasing <br /> the overall width, flattening the downstream slope, and/or reducing the <br /> downstream embankment height. In addition, this material is in close proximity <br /> of the ponding area when final reclamation of the pond is required. Based on <br /> the field conditions encountered at the time of construction, the field engineer <br /> is allowed enough flexibility to dispose of the material in an acceptable <br /> manner. <br /> Peabody will minimize erosion and comply with the applicable regulations. <br /> SELECTED REFERENCES <br /> Barfield, B.J., Warner, R.C., and Haan, C.T. 1985. Applied Hydrology and Sedimentology <br /> for Disturbed Areas. Oklahoma Technical Press, Stillwater, Oklahoma. <br /> Dames and Moore. 1985. General Report Geotechnic, Hydrologic, and Hydraulic Evaluation <br /> of Sedimentation Structures Kayenta and Black Mesa Mines. Navajo County, Arizona. <br /> NOAA Precipitation Frequency Atlas of the Western States. Volume Ill. Colorado. 1973. <br /> 15 <br />