2003-12-11_REVISION - M1998014 (2)

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The reclamatron plan calls for returning the disturbed areas, aRer mining and reclamation, to a Land use that is 'general agricultural' Thrs land use is consistent wdh that found m the surrounding area. Because o1 the "dry land" nature o1 the seed mix presented herein, irrigation of the disturbed areas will riot be attempted The predomnate feature of the reclaimed area will be a Rat graded area approwmately 25 feet below the surrounding undisturbed elevation. A Reclamaton Plan Map depicting the confguralron of the reclaimed ground surface can be found in Exhibd f Reclamation will be conducted rn a phased manner and will start in each phase at the time when the sand and gravel resource has been depleted In other words, reclamation may happen during the same time as gravel extraction actnnlies are occurring in each phase. Since no more than 30 acres will be disturbed at one time Except the staging area, reclamation efforts will begin prior to and simultaneously with the next sand and gravel removal process The irntial reclamation efforts, consisting of sloping and grading began dumg 2001a1ong the westerly bourWary of Phase One- Reclamatxxt will occur on a 12 to 18 month cycle until all mining acbvdies have ceased BACKfILLING AND GRADING - As each of the extractgn have the resource removed, the backfilling and grading activities will commence except for any working gravel faces(s) The stockpiled overburden will be hauled from its storage area ad(acent to the mining area by mobile equpment and placed where required to achieve a level topography and properly backfilled slopes In order to achieve a "natural' appearance the side scopes of the extractbn they will be re-graded irregular and will range from no steeper than a ratro of 2:1 (hor¢ontal to vertical) to a ratio of 3 1 Approwmately 50 percent of Ute total length o(the stopeswdl be graded to the 2 1 rata. Backhlling and grading will be done by dozers, and/or, scrapers which will compact and stabilize the overburden material To insure slaWhty of the slopes. material will be placed m 12 inch Idts and compacted to a minimum density of 85 percent In the even) that material delivered to the facrldy is used in the gackfdbng and grading operations, the following procedure will be mplemented to insure that the material is clean and inert t. The mdrvdual or company delivering material to the facility is required to sgn an affidavd certit)mg that the material is clean and inert, the orginating source of the material, and theestmaled vdume At the discretion of the facility operator, the certification may also include an envronmental audR of the source site prepared by a Colorado Registered Professional Engineer or a Registered EnvBOnmental Manager 2. During the stockpiling process, the facility manager, and those indrvkfuals who operate the stockpiling equpment. will conduct constant visual analysis of the delivered material on a truck by truck basis At a minxrtum, the visual evaluation will dentrty Ihat the soil does not have any hydrocarbon contammatbn, hazardous substances, or other solid waste 3 In the event that contaminated material rs denlKred. all work m the immediate area will cease and a Colorado Registered Professional Engineer or a Registered Environmental Managerwdl becontacted by the faalrry operator The listed qualdied indmdual(s) will prepare, supervise and implement a Remediatbn and Disposal Plan conducted m accordance with the regwrements of the governing regulatory agencies. TOPSOIL REPLACEMENT -Topsoil replacement unit occur m a phase by phase manner using mobile equipment once all re-grading of the area disturbed by mining 5 complete. Topsoil will be replaced to a thickness of al least 8 inches whkh ~s appropriate to establish vegetaton cornmurnhes consistent wRh the post mine land use RE-VEGETATION -The intent of the re-vegetation is the establishment of plant communiliesconsistent with the post-mine land use. After topsoil replacement, seed bed preparation and stabil¢atbn will be conducted and will i Rov OtYt0lOJ