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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:1 V) 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. Compacted areas, including the access road, haul roads, plant site, and pit <br /> floor, will be ripped with a dozer to breakup compacted materials so they provide a suitable <br /> subgrade. These areas will be regraded, topsoiled, and revegetated as described above and as <br /> 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 implemented <br /> throughout the life of the mine. Correspondence with DWR indicates a Storm Water Management <br /> Plan (SWMP) is not necessary for this project. The sediment detention basins will remain in place <br /> during the initial reclamation period to capture sediment until vegetation is established. Once <br /> sediment levels reach permissible standards, the sediment detention basins will be removed and <br /> the areas reclaimed by filling the basin, placing topsoil, and revegetating the location. The <br /> reclamation drainage network will route runoff and seepage waters from affected areas to Little <br /> Turkey Creek via open, free-flowing channels. No pumping is required. Channel segments with <br /> flat gradients (-2%) will be vegetation channels, and channels with steeper gradients will be <br /> armored with riprap or excavated into bedrock. <br /> Hitch Rack Ranch Quarry Permit Application <br /> March 20, 2018 E-6 <br />