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In addition to the above, contour furrows in and above the erosion area may be constructed to <br />trap and slow down the runoff. Straw dikes will also be used where appropriate to control <br />runoff and promote revegetation. <br />Other Methods If corrective measures described under "NO Defined Channel" fail, Peabody <br />Coal Company proposes to observe and reevaluate the situation. A combination of the first <br />two methods described or some variation therein will be applied. Methods such as, but not <br />limited to rock channels, contour furrows, or laterals with rock or matting bottoms, V ditches <br />made with the dozer or motor grader, and methods described above to reestablish vegetation <br />will be considered. <br />Head Cutting Stabilization Head cutting will be controlled by a number of methods. If the area <br />is at a point that concentrates runoff, the area will be improved to accept this runoff. This <br />would include reshaping the channel and channel bottom, covering with erosion matting, <br />seeding, or rocking. <br />In other areas, depending on the extent of erosion and time of year, the area will be disked and <br />mulched and seeded as required. Straw bales, erosion matting and rock fill may also be used <br />to stabilize the area. <br />Peabody will submit to the Division by June 1 of each year, a copy of the map identifying the <br />rill and gully areas along with a rill and gully stabilization plan that briefly describes the problem <br />at each identified area and the proposed mitigative measures. <br />The rill and gully stabilization plan will be implemented by July 1 of each year, or as soon <br />thereafter as ground conditions permit, and completed by November 1 or until weather <br />conditions restrict operations. The Division will be notified prior to implementing the mitigative <br />work and when the work is complete. <br />Revegetation Monitoring <br />Monitoring of revegetated areas at the Seneca II-W Mine and the II-W South Extension area <br />may consist of both qualitative evaluations and quantitative measurements. Qualitative <br />evaluations will be carried out at least annually during the growing season, while quantitative <br />measurements and evaluations may be on a more periodic basis. <br />34 Revised 1/99 <br />