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The reclamation plan calls for returning the disturbed areas, after mining and reclamation, to a land use <br />that is "rangeland°. This land use is consistent with that found in the surcounding area. <br />The predominant feature of the reclaimed area wilt be a fiat graded area approximately 15 feet below the <br />surrounding undisturbed elevation. A Reclamation Plan Map depicting the configuration of the reclaimed <br />ground surface can be found in Exhibit F. <br />Reclamation will be conducted in a phased manner and will begin when no further disturbance will occur <br />as a result of the mining activities in each of the identified phases. In other words, reclamation may <br />happen during the same Time as mining activities are occurring in each phase. It is anticipated that <br />reclamation efforts will occur on a 12 to 18 month cycle until all mining activities have ceased. <br />BACKFILLING AND GRADING -After the resource is removed, backfilling and grading activities will <br />commence except for any working gravel faces(s). The stockpiled overburden will be hauled from its <br />storage area adjacent to the mining area by mobile equipment and placed where required to achieve a <br />level topography and properly backfilled slopes. The side slopes along the south side of the mining area <br />will be re-graded to be no steeper than a ratio of 3:1 (horizontal to vertical). Backfilling and grading will be <br />done by dozers, and/or, scrapers which will compact and stabilize the overburden material. To insure <br />stability of the slopes, material will be placed in 12 inch lifts and compacted to a minimum density of 85 <br />percent of the optimum density. <br />In the event that material delivered to the facility from outside sources is used in the backfilling and <br />grading operations, the following procedure will be implemented to insure that the material is clean and <br />inert: <br />1. The individual or company delivering material to the facility will be required to sign an affidavit <br />certifying that the material is: clean and inert, the originating source of the material, and the <br />estimated volume. At the discretion of the facility operator, the certification may also include an <br />environmental audit of the source site prepared by a Colorado Registered Professional Engineer <br />or a Registered Environmental Manager. <br />2. During the stockpiling process, the facility manager and those individuals who operate the <br />stockpiling equipment will conduct constant visual analysis of the delivered material on a truck by <br />truck basis. At a minimum, the visual evaluation will identify that the soil does not have any <br />hydrocarbon contamination, hazardous substances, or other solid waste. <br />3. In the event that contaminated material is identified, all work in the immediate area will cease and <br />a Colorado Registered Professional Engineer or a Registered Environmenta! Manager wil! be <br />contacted by the facility operator. The listed qualified individual(s) will prepare, supervise and <br />implement a Remediation and Disposal Plan conducted in accordance with the requirements of <br />the governing regulatory agencies. <br />TOPSOIL REPLACEMENT -Topsoil replacement will occur using mobile equipment once all re-grading <br />of the area disturbed by mining is complete. Topsoil will be replaced to a thickness of at least 6 inches, <br />which is appropriate to establish vegetation communities consistent with the post mine land use. <br />RE-VEGETATION -The intent of the re-vegetation is the establishment of plant communities consistent <br />with the post-mine land use. After topsoil replacement, seed bed preparation and stabilization will be <br />conducted and will include one of the following: ripping, disking, harrowing and/or furrowing. Because of <br />the phased fashion in which the site is mined and reclaimed, it will allow for continuous analysis of re- <br />vegetation success and determining the best type of preparation that should be used. Two separate types <br />of re-vegetation will be conducted: Type "A° seeding is an agricultural type of seed mix for the pit floor. <br />Side slopes will be re-vegetated using a Type "B" seed mix consisting of native grasses, interspersed with <br />Rev. 05/18/04 5 <br />