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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: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 <br /> highwalls at forty feet high. These highwalls will have a 63-degree angle between benches, <br /> however, the overall slope will be 1:1 (H:V) as shown in Figure C-10 and Figure F-2. Blasting <br /> operations are designed to leave smooth highwalls, and pre-split blasting techniques will be <br /> used if necessary to 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 <br /> spread the materials. This allows the materials to be placed on a wide bench with sufficient <br /> room for the reclamation operations to occur. This is depicted by mining phases in Exhibit C <br /> and described in detail in Exhibit D and is depicted in a general cross section on Figure F-2 <br /> (inset). Access to 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 <br /> G. Storm water from all areas of disturbance will be directed into the existing sedimentation <br /> systems for the mine. After the water is clarified it will be discharged into existing drainages. A <br /> Colorado Pollutant Discharge System (CDPS) discharge permit will be obtained and <br /> implemented throughout the life of the mine. Correspondence with DWR indicates a Storm <br /> Water Management Plan (SWMP) is not necessary for this project. The sediment detention <br /> basins will remain in place during the initial reclamation period to capture sediment until <br /> vegetation is established. Once sediment levels reach permissible standards, the sediment <br /> detention basins will be removed and the areas reclaimed by filling the basin, placing topsoil, <br /> and revegetating the location. The reclamation drainage network will route runoff and seepage <br /> waters from affected areas to Little Turkey Creek via open, free-flowing channels. No pumping <br /> is required. Channel segments with flat gradients (-2%) will be vegetation channels, and <br /> channels with steeper gradients will be armored with riprap or excavated into bedrock. <br /> Hitch Rack Ranch Quarry Permit Application <br /> March 9, 2018 E-6 <br />