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the slope, aspect, and soil conditions of the site. Further consideration will be given to the normal <br />climatic patterns, plant successional processes, and rate of vegetation establishment and development <br />• in the subject area. Evaluation will include whether the rills and gullies will prohibit successful <br />revegetation or will disrupt the achievement of the postmining land use. <br />Based on this evaluation, several options will be available to correct the situation. These options will <br />be a direct result of studying the situation and selecting the option that will best rectify the erosional <br />problem. One or more of the following options and corrective methods will be employed. <br />Improved Channel. If it is determined that topography of the regraded area is such that drainage is <br />concentrated into a particular area, drainage control will be improved. The drainage bottom or channel <br />will be reshaped, if needed. This will be done with either a motor grader or dozer, making the channel <br />in the shape of a V that is approximately 16 feet to 20 feet wide. The channel bottom will either be <br />seeded, covered with erosion matting and seeded, or rocked. The method used will depend on site <br />conditions. Continued observations will he made of this area for additional problems or necessary <br />maintenance. <br />No Defined Channel. On a slope where there is no Swale or defined channel, a number of operations <br />will be performed, depending on the extent of the erosion. The area will be disked on the contour or <br />• erosion matting will be placed on the area, depending again on site characteristics. Reseeding will <br />then take place. In addition to the above, contour furrows in and above the erosion area may be <br />constructed to intercept and slow down [he runoff or to channel flows. Straw dikes will also be used <br />where appropriate to control runoff and promote vegetation. <br />Other Methods. If corrective measures described under "No Defined Channel" fail, further observation <br />will be necessary to develop additional measures. A combination of the first two described methods <br />or some variation will then be applied. Methods may include rock channels, contour furrows, or <br />laterals with rock or matting lined bottoms, V ditches made with a dozer or motor grader, and methods <br />described above to reestablish vegetation. <br />Head Cutting Stabilization. Head cutting will be controlled using several varying methods. If the area <br />is at a point that concentrates runoff, the area will be improved to accept the runoff. This would <br />include reshaping the channel and channel bottom, seeding, and covering the channel with erosion <br />matting or rock. In other areas, depending on the <br /> <br />33 <br />