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RULE 2 PERMITS <br />take advantage of each opportunity to try new plant species and materials and new methods for seeding <br />and erosion control. <br />Topsoil Redistribution Plan <br />Prior to any mining-related disturbances, all available topsoil will be removed from the site to be <br />disturbed as discussed in Section 2.05.3, and will be redistributed or stockpiled as necessary to satisfy the <br />needs of the reclamation timetable as described herein. <br />Final grading before topsoil placement will be conducted in a manner that minimizes erosion and <br />provides a surface for the topsoil that minimizes slippage. If spoil compaction is a problem, the spoil will <br />be ripped with a dozer to minimize compaction, assure stability and minimize slippage after topsoil <br />replacement. Topsoil will then be redistributed and graded to a minimum depth of eighteen inches (6" in a <br />discrete area in Section 10, a Colorado State University shrub establishment study plot with topsoil depths <br />varying from 0 - 18", 12" in Section 11). Refer to Map 28B for an overview of these areas. Topsoil may <br />be applied at depths greater than 18" in selected areas where plants, that may require a deep soil, will be <br />established in conjunction with the proposed post- mining land use. Prior to 2005, the volume of topsoil <br />replaced was calculated based on a known parcel acreage and the required replacement depth. Starting in <br />2005, topsoil replacement depth was determined based on field surveys, load counts, and in-place <br />stockpile volumes. <br />Starting in 2006, Section 11 of the Annual Report presents a summary of topsoil stockpile volumes, a <br />table showing the replacement depth for each reclamation polygon, and an adjusted version of permit <br />Table 2.05-1, updated to present the topsoil balance as of December of the report year. An additional <br />table is also provided in Section 11 of the Annual Report which details all topsoil stripping and <br />replacement movements during the report period. This includes measurements of areas and volumes. <br />Stripped areas, volumes live-handled, volumes stockpiled, and any areas exempted from stripping are <br />included. <br />Topsoil will normally be reapplied by hauling, in trucks, from topsoil stockpiles or from areas where <br />topsoil has been removed for mining advance, to the regraded spoil areas and then redistributed with <br />dozers. Alternate methods may also include placing topsoil on slopes with a dragline followed by <br />redistribution with dozer, or using a scraper to redistribute the topsoil. When necessary to ensure <br />replacement to the required depths, replacement depths will be staked on the regraded spoil <br />Reapplied topsoil will be left in a rough condition to control wind and water erosion prior to seeding. <br />Seedbed preparation, other surface manipulation practices and seeding will be completed primarily during <br />the fall months.. Contour furrows, approximately 4-6 inches deep at the deepest point and 20-25 inches <br />wide, which have been used on slope areas very successfully during the past 13 years, will be used to <br />reduce erosion potential, conserve moisture, and maintain site stability until vegetation is sufficiently <br />established. The size of the furrows may be increased if necessary to control erosion, and the distance <br />between the furrows will vary, but will be approximately 10 to 20 feet along the slope. Small rock check <br />dams may also be used where appropriate to aid in control of erosion both prior to seeding and if <br />necessary, after an area has been seeded. <br />Reveuetation Plan <br />Following the retopsoiling of an area, any necessary fertilization, chiseling, construction of contour <br />furrows, and seeding of the reclamation will take place. <br />Rule 2 Permits 2.05-22 Revision Date: 6/23/08 <br />Revision No.: MR-91