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C:— "-- Topsoil from the aggregate site shall be removed and segregated from other spoil <br />and saved near the operation site for re- application and re- seeking after the aggregate processing <br />is completed. These stockpiles shall be stored so as to minimize erosion and located in areas <br />where disturbance by ongoing aggregate processing operations will be minimized. <br />D. Kirkland shall be responsible for developing and implementing a storm water <br />management plan and securing a stormwater discharge permit, as required by the Colorado <br />Department of Health and the Environment, Water Quality Control Division. <br />III. Regrading and Site Preparation, Post- procession. <br />A. Backfill. Spoil materials generated during the processing operation and which <br />are not required for the Operations shall be placed as backfill on the Subject Site and graded to <br />create a natural appearance, consistent with the surrounding terrace. <br />B. Any soil materials that would adversely affect water quality or plant growth shall <br />be buried with any backfill below the root zone. <br />C. All natural and metal debris shall be removed from the Subject Site prior to <br />regrading work. <br />D. Regrading shall be done when soil is dry and as soon after construction as <br />possible to prevent erosion. All grading shall be done in a manner to control erosion and <br />siltation. <br />E. Maximum slopes shall be compatible with surrounding topography conditions and <br />suitable to a rangeland land use setting where livestock and wildlife grazing will occur. Finished <br />slopes shall be no steeper than a 3:1 horizontal to vertical ratio. Regrading shall minimize or <br />prevent off -site stormwater and discharge. <br />F. Topsoil that was saved during site preparation shall be re- applied uniformly <br />across the site covering all disturbed areas, including stockpile areas, to a depth of at least six <br />inches. <br />G. Ripping, disking, or other aeration methods shall be used to aerate and condition <br />the soils to a depth of six inches to prepare a proper seed -bed for revegetation. <br />H. If necessary, roughing of regraded areas shall be conducted prior to re- application <br />of topsoil in order to prevent slippage between soil layers. <br />I. Roughing or grooves shall be created across the affected area using tracks of a <br />dozer and other machine to help capture water and create microsites for seed germination. <br />J. Runoff control measures shall be used to control erosion and sedimentation for <br />final stabilization of the Subject Site. <br />21 <br />