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ap - - ,zi <br /> Transit Mix Concrete Co. <br /> All overburden and fines will be stockpiled or contemporaneously backfilled in the pits. Dozers <br /> will be used to regrade stockpile F1 to approximately 18-degree (3H:1V) slopes. Additionally, <br /> dozers will be used to spread at least one-foot of fines material and six inches of topsoil on the <br /> regraded stockpile slopes and the pit floors. Haul trucks will dump the fines material and topsoil <br /> for the dozers to spread. Fill areas, including the backfilled pit area, will be placed at a maximum <br /> slope of 3H:1 V. <br /> Drilling and blasting operations will create a series of final benches twenty feet wide and highwalls <br /> at forty feet high. These highwalls will have a 63-degree angle between benches, however, the <br /> overall slope will be 1:1 (H:V) as shown in Figure C-10 and Figure F-2. Blasting operations are <br /> designed to leave smooth highwalls, and pre-split blasting techniques will be used if necessary to <br /> form smooth walls. <br /> To reclaim each highwall bench, loaders and haul trucks will place at least one foot of subsoil <br /> made up of fines and overburden and six inches of topsoil on each bench, and dozers will spread <br /> the materials. This allows the materials to be placed on a wide bench with sufficient room for the <br /> reclamation operations to occur. This is depicted by mining phases in Exhibit C and described <br /> in detail in Exhibit D and is depicted in a general cross section on Figure F-2 (inset). Access to <br /> benches will remain as necessary in order to complete the reclamation efforts. <br /> When the mining facilities are no longer required, all the structures including concrete footings, <br /> foundations, floors, sewage disposal systems, pipe, and cable will be broken up and removed <br /> and/or demolished. These areas will be regraded, topsoiled, and revegetated as described above <br /> and as shown on Figure C-9, F-1, and F-2. <br /> Storm water will be managed throughout both mining and reclamation as discussed in Exhibit G. <br /> Storm water from all areas of disturbance will be directed into the existing sedimentation systems <br /> for the mine. After the water is clarified it will be discharged into existing drainages. A Colorado <br /> Pollutant Discharge System (CDPS) discharge permit will be obtained and a Storm Water <br /> Management Plan (SWMP) prepared and implemented throughout the life of the mine. <br /> Subsoil <br /> Subsoil made up of fines from plant losses and overburden removed during mining will be used <br /> as a plant growth medium between affected areas and the topsoil which include highwall benches, <br /> the pit floors, and the access road. During mining, overburden and fines generated will be direct <br /> hauled and placed as backfill in the pit areas as soon as practicable and as areas become <br /> available. At least one-foot of fines/overburden will be placed over the affected areas. These <br /> subsoils will be scarified to eliminate smooth surfaces to allow roots to penetrate. This will be <br /> done prior to placement of the topsoil to help reduce topsoil compaction (Brown& Hallman, 1984). <br /> Hitch Rack Ranch Quarry Permit Application <br /> October 3, 2017 E-6 <br />