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A record will be maintained of azeas where herbicides are sprayed, the types and mixture of • <br />herbicides used, and the date of treatment. This information will be reported in the Annual <br />Reclamation Report. <br />Historically, pest control has not been necessary at the Seneca II Mine. Based on this <br />operating experience, pest control is not anticipated at this time for the Seneca II-W Mine or <br />the II-W South Extension azea. Ongoing reclamation monitoring will identify infestations by <br />pests. A pest control plan will be developed similar to the weed control plan discussed above. <br />The specific plan will be developed in consultation with CMLRD and presented as a revision <br />submittal, when necessary. <br />Reerading or Stabilizing Rills and Gullies <br />After an area has been backfilled, graded, topsoiled, and seeded Peabody will monitor the area <br />Following spring snowmelt and heavy rains. If observation of the azeas indicates that excessive <br />rills and gullies ate present or may potentially occur, a closer observation will attempt to <br />determine the cause of the gullying. These areas will be identified on a map. <br />The natural geomorphic processes of the reclaimed area will be given a great deal of <br />consideration, taking into account the slope, aspect, and soil conditions of the site. Further <br />consideration will be given to the normal climatic conditions and rate of vegetation <br />establishment and development in the subject area. Evaluation will include whether the tills <br />and gullies will prohibit successful revegetation or will disrupt the achievement of the <br />postmining land use. <br />After observation, Peabody Coal Company will have a few options to correct the situation. <br />These options will be a direct result of studying the situation and selecting the option that, in <br />the opinion of Peabody, will rectify the erosional problem. <br />One of, or a combination 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 <br />drainage is concentrated into a particular area, then this area will be improved to accept the <br />runoff. The drainage bottom or channel will be reshaped, if needed. This will be done with • <br />either a motor grader or dozer, making the channel in the shape of a V that is approximately 16 <br />Eeet to 20 feet wide. The channel bottom will either be seeded, covered with erosion matting <br />PR-05 <br />38 <br />