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EXHIBIT C — MINING PLAN (6.3.3.) FOR TONER RANCH PIT <br /> 1. Purpose: To describe how mining will affect the permit area for the duration of the operation. <br /> 2. General Concept: Mining will be done in several phases, starting with access and site preparation, <br /> and then mining starting on the west edge and moving counter-clockwise around the permit area. <br /> 3. Tasks: The operator will: <br /> a. Initially, mark the exterior boundaries of the permit area using 6-foot 4-in PVC pipe, and placing <br /> the reclamation permit sign. <br /> b. Construct the 550-ft by 25-ft gravel access road, including stripping and storing soil, installing <br /> traffic controls, truck scale, and a crossing of the irrigation ditch (36-inch culvert), and if <br /> required, a culvert in the bar ditch of Taylor Lane. (Coordinating with County road personnel.) <br /> c. Install fencing/barriers and gate(s) (up to approximately 3400 LF and two gates:) <br /> d. Mark the boundaries of the (#1) storage/truck loading area (approximately 100 by 200 feet) and <br /> (#2) work area (plant site) (approximately 200 by 200 feet),then strip and store soil and <br /> compact subgrade to prepare these areas. <br /> i. #1 storage/truck loading area where processed material will be stockpiled and trucks <br /> will be loaded for shipping construction materials out. (A truck scale will be located <br /> either in this area or in the access road immediately east.) <br /> ii. #2 work area is the location for pitrun (excavated material) stockpiles and portable, <br /> permitted processing plants (intermittently on site), including crushers, screens, <br /> washers, conveyors, gensets, fuel tanks, control rooms and portable latrines. (Note: <br /> Excavated material may be stockpiled prior to processing, or fed directly to the plant.) <br /> e. Complete preparation of the storage/truck loading area and work area by constructing shallow <br /> swales and retention basins to direct and collect storm water(allowing it to evaporate or <br /> infiltrate), maintain trafficability, and control releases if needed. <br /> f. Store and protect stripped soil in stockpiles along the access road and on the western edge of <br /> the permit area, including shaping, compacting, and seeding with annual rye and/or alfalfa. <br /> Outside the stockpiles, construct and maintain a shallow swale to allow runoff to collect and <br /> infiltrate/evaporate, and to capture sediment eroded from the stockpile for use in reclamation. <br /> (These swales are not expected to have any surface discharge, either sheet or channel, beyond <br /> the pit boundaries.) <br /> g. Strip area of 1-2 acres for initial extraction (immediately west and south of the#2 plant area), <br /> storing soil in an extension of the stockpile along the western edge of the permit area. <br /> h. Begin extracting pitrun materials, using loaders and/or trackhoes to transport materials to <br /> stockpiles or directly to processing plant, following the general sequence as shown in Exhibit E. <br /> Although subject to change based on various factors, in general an area of 100-200 feet wide (E- <br /> to-W) will be stripped and mined to an estimated depth of 15-20 feet, with the outside edge of <br /> the pit excavated at a 2H:1V slope (to reduce/eliminate need for backfill), and internal working <br /> faces excavated to a vertical slope, with benches as necessary based on stability of the face. <br /> i. Construct a retention basin in the Southwest corner of the permit area to collect runoff and <br /> exposed ground water from the affected area, which will become a permanent, post- <br /> reclamation feature to support grazing. If required, this basin may have an armored outfall to <br /> the irrigation ditch outside the permit boundary. <br /> j. Mine the southern portion of the Pit, moving south, east, then north. <br /> Toner Ranch Pit 110c Application Exhibits Page 5 of 20 <br />