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<br />Given the varied nature of areas to be reclaimed, backfilling and grading <br />operations will involve the use of a number of different methods and <br />practices. In certain areas where backfilling is necessary, backfill <br />material may be excavated, loaded, and hauled utilizing either wheel <br />loaders and trucks or tractor scrapers to move and place the material as <br />desired. Specific areas where this reclamation approach may be utilized <br />include the mine portal, portal bench, reclaim tunnel, and Magpie Creek <br />diversion. <br />Backfilling and regrading operations in many areas will involve movement <br />of materials over limited distances. In these particular cases, tracked <br />dozers and motor graders can best be utilized to complete the work. Areas <br />where direct recontouring can best be utilized will include the coal <br />stockpile area, sedimentation ponds, collection and diversion ditches, the <br />mine face-up area, mine facilities area, roads, and coal loadout area. <br />In addition, there may be areas where a combination of these two (2) <br />primary methods may be most effectively utilized to complete backfilling <br />and regrading and establish the design post-mining configuration. <br />Generally, to the extent operationally feasible, regraded areas will be <br />left in a roughened condition to improve bonding between the regraded <br />surface and topsoil materials, temporarily minimize runoff and erosion <br />from regraded areas, and increase water infiltration to increase soil <br />moisture levels and promote revegetation. <br />In conjunction with backfilling and grading activities, EFCI will <br />reestablish a post-mining drainage configuration similar to that which <br />existed in the pre-mining environment. EFCI has designed the post-mining <br />drainage network to provide similar drainage density, gradients and <br />geomorphic characteristics. Principal post-mining drainages will include <br />the permanent collection and diversion ditches associated with the coal <br />refuse stockpile in the mine area, and two (2) ephemeral tributaries to <br />Chandler Creek in the coal <br />2.05.4-12R Revised -November, 1990 <br />