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• Roads will not be used if climatic conditions are such that usage may cause <br />degradation of water quality. <br />Areas of drill sites not disturbed by monitoring activities will be reclaimed, as stated <br />below, immediately following well installation. <br />Upon completion of monitoring operations, light use roads shall be closed to traffic and <br />natural drainage patterns restored. All drill sites and access roads will be graded, <br />topsoil replaced and revegetated according to 4.15.3(1) and (2). Final seeding and <br />planting will be conducted after all monitoring operations have finished and the areas are <br />scarified, plowed, or ripped. When necessary, any disturbed area will be seeded as <br />practicable with temporary cover until permanent vegetation is established. <br />Peabody will utilize seed and/or seedlings genotypically adapted to the area. The <br />following species and broadcast seeding rates are as follows: <br />GRASSES SEED/LB. <br />• (N) *Slender Wh eatg ra ss 611/Acre 318,000/16. <br />(N) *Western Wheatgrass 8 220,000/16. <br />Smooth Brome 8 272,000/16. <br />Russian Wildrye 4 350,000/lb. <br /> 26#/Acre <br />The above seeds and rates were suggested by Pea body's Seneca II Mine Reclamation Manager. <br />Mulching will not be done because of the very small disturbance area and the high winds <br />which occur in the area. <br />Threatened and Endangered Species <br />See Exhibit D. <br /> Method of Plugging Holes <br /> After each well is no longer required for monitoring purposes, the well will be bac kfilled <br /> from the bottom to within ten feet of the surface with cement or other suitable sealant. <br />• A plug will be set at the ten-foot depth, and the remaining sev en feet will be cemented to <br /> within three foot of the surface; the remaining three feet to be filled with drill <br /> cuttings or soil. <br /> 2 <br />