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The Carbon Junction Mine permit area was reclaimed in 2006, with the exception of sediment control. <br />Tasks included backfilling, regrading, topsoil replacement, and seeding. The reclamation plan is <br />described in Section 2.05.4 of the Abridged Permit Document. <br />North Pit and North Pit Haul Road Reclamation <br />Downspoiled material was moved from the slope, below, back to North Pit bench area. The bench area <br />and sandstone scarp were back filled with the downspoiled material. The balance of backfill required <br />was recovered from the Permanently Reclaimed Spoils Area located in the Carbon Junction Channel <br />below the North Pit. The overall slope in the North Pit area was to be 3:1. A sandstone scarp at the <br />top of the slope was to remain as it existed because it could not be backfilled to 3:1. Topsoil from <br />Stockpile 92 was used to cover the entire North Pit bench fill area with eight to twelve inches of <br />topsoil. Additional topsoil was spread over the bench outslope, to cover down slope spoil that could not <br />be retrieved. The North Pit area was seeded and mulched in 2006 as described in the revegetation <br />plan. <br />The haul road that led to the North Pit was reduced to a width of 30 feet and the slopes were backfilled <br />to no steeper than 3h: Iv. Fill for the North Pit haul road was excavated from the Permanently Reclaimed <br />Spoils Area. <br />Permanently Reclaimed Spoils Area (PRSA) <br />This approved permanent spoil pile was constructed within the confines of the original Carbon Junction <br />drainage and covers an area approximately 8.56 acres in size. The pile, constructed in a valley -fill <br />configuration, consists of box cut spoil, blasted sandstone, and overburden material excavated to gain <br />access to the North Pit and South Pit. Details of the PRSA are found in Section 2.05.3(6) of the <br />Abridged Permit Document. The Carbon Junction channel was permanently diverted around the <br />PRSA, as described below. <br />Carbon Junction Canyon Permanent Diversion and Reestablishment of the Channel <br />The reclamation plan for restoring the Carbon Junction drainage included the following tasks: <br />construction of a 1,962 -foot long diversion channel (designed for a 100 -year, 24-hour storm), lining with <br />riprap, and construction of a culvert crossing (twin 66" diameter pipes) for the channel underneath the <br />main access road. The open channel is to be 14 feet wide (after riprapping) and varies in depth from 1.9 <br />feet to 2.8 feet for the lower section, including freeboard. <br />The upper segment of the Carbon Junction channel was reestablished in November 2013 with the <br />removal and regrading of a temporary diversion berm that had directed flow into the East Collection <br />Ditch. The area was seeded and mulched following grading. <br />Seed Mix/Seeding Methods <br />A basic grass and forb seed mixture was used in all areas revegetated after reclamation (Table 5-6). The <br />goal of the herbaceous seeding was to establish a vegetation cover, subject to the applicable <br />requirements of Rules 3.03.1(3)(e) and 4.15.10, adequate to control erosion and minimize weedy species <br />establishment prior to final development of the property. In areas where crops were grown prior to <br />mining, crops may be re-established post -mine if this is consistent with the commercial land use of the <br />property. Grasses and forbs were planted using drill seeding and/or broadcast means. In the case of <br />broadcast seeding, the seeding rates were two times the rates shown in Table 5-6. Woody plants were <br />not planted in the revegetated area. <br />