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placement of topsoil. Final slopes, in general, do not exceed one vertical to three horizontal (lv:3h). <br /> Beginning in 1983, surveys were conducted to assure attainment of approximate original contour. <br /> Survey results were submitted on a yearly basis as part of Colowyo's Annual Reclamation Report. In <br /> 1987, this requirement was reduced to require survey reports only every two and onehalf years. In <br /> 1992, swell factor monitoring and analyses were terminated(PAP Volume I, Section 4.14.2). <br /> In the South Taylor Pit, with the exception of the two valley fills, Colowyo will return all mined <br /> lands to approximate original contour, with reclaimed surfaces resembling the general surface <br /> configuration of the area (though changes will occur on a smaller scale). The Division has, however, <br /> granted a variance from AOC for the steep slopes at the edges of the South Taylor Pit. These steep- <br /> slopes will be graded to a more gently-sloping topography, which will enhance the post-mining land <br /> uses of rangeland and wildlife habitat. These lands are owned by the Colowyo Land Management <br /> Company and the BLM. Both Colowyo and the BLM have provided letters approving of the post- <br /> mining topography and the change in AOC, located in figure 2.064-1 of the PAP. Maps 18A and <br /> 19B of the PAP show the pre-mining topography and post-mining topography of the South Taylor <br /> Pit,respectively. <br /> Drainages in the South Taylor Pit are constructed with gradients similar to those originally present, <br /> and complement the drainage pattern of the surrounding terrain. Premining and postmining drainage <br /> profiles are found on Map 33B of the PAP. <br /> Final grading plans for the South Taylor Pit provide a surface that both minimizes erosion and <br /> slippage following the placement of topsoil. Final slopes, in general, do not exceed one vertical to <br /> three horizontal (lv:3h). <br /> The Collom area to be mined will be restored to a topography approximating pre-mining grades. The <br /> slopes of backfilled areas, as necessary,will utilize contour furrows for erosion control and stability. <br /> Final grading plans for the Collom pit will be conducted in a manner that minimizes erosion and <br /> provides a surface for topsoil that minimizes slippage. Final grading will be accomplished so that <br /> overall grades will not exceed lv:3h. Backfill and grading for the Collom Pit is shown on Maps 19C <br /> and 29B of the PAP. <br /> D. Specific Findings Required by Section 4.14 <br /> The following specific findings are applicable to all areas of the Mine including the East Pit, West <br /> Pit, Section 16 Pit, South Taylor Pit and Collom Pit. <br /> 1. The Division approved the retention of box cut spoil or initial cut spoil outside the pit area <br /> since Colowyo has demonstrated that such material is not required to achieve approximate <br /> original contour in accordance with Rule 4.09.1 (Rule 4.14.1(2)(d)). <br /> 46 <br /> Permit Revision No.5(PR-05),G 1981-019 <br />