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C-18 r1 <br /> The fines recovery pit will be constructed as an unlined impoundment. Inasmuch as no process chemicals <br /> (other than non-toxic flocculants) are to be employed in the sand processing operations, the feature will <br /> effectively serve as an infiltration basin,taking advantage of the high permeability of the underlying sands, <br /> for disposition of residual process moisture and collected precipitation. Further to this, the surficial areal <br /> extent of the feature will serve to facilitate maximum evaporation. <br /> (iv) Processing Plant Facilities <br /> The Keenesburg Project will employ wet and dry processing stages to produce the final saleable product. <br /> Major components of the plant facilities are described,in sequence with the project process flow,as follows; <br /> and, are depicted on Figure C-3: Plant Facilities Layout. <br /> ROM Stockpile <br /> Under steady-state conditions, the run-of-mine (ROM) stockpile will be situated proximal to the wet plant <br /> feed hopper and immediately to the west of the fines recovery pit. ROM sand will be trucked from the pit <br /> via a short ramp and then some 75-to 100-ft.to the stockpile location. It is anticipated that the nominal live <br /> capacity of the ROM stockpile will be on the order of 400-to 500 yd3,occupying an area approximately 30- <br /> ft. by 50-ft.,with an estimated stockpile height of approximately 8-ft. <br /> Wet Process Plant <br /> The wet process plant facilities will occupy an approximately 130-ft.by 65-ft. area within the north-central <br /> portion of the Permit Area. It will consist of an assemblage of(temporary)modular equipment,to be placed <br /> atop a timber or composite matting system. The wet plant process flow is depicted in Figure C-4: Wet <br /> Plant Process Flow Schematic. More detailed discussion of the plant equipment and process flow is <br /> provided above, in the Keenesburg Project Mining and Processing Overview. <br />