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D-30 <br /> ROM Stockpile <br /> The ROM stockpile (nominal 300,000 tons live capacity) will be situated proximal to the wet plant feed <br /> hopper,occupying an area approximately 550 ft.x 550 ft. x 45 ft.high. <br /> Processing will commence with front-end loader retrieval of ROM material from the ROM stockpile for <br /> delivery to the wet plant feed hopper. <br /> Wet Process Plant <br /> The wet process plant facilities will occupy an approximately 530-ft.by 475 ft. footprint area at a location <br /> immediately to the north of the ROM stockpile. The enclosure will contain an assemblage of permanent <br /> stages of equipment affixed to concrete foundations. <br /> ROM material will be trammed(via front-end loader)from the ROM stockpile to the integral feed hopper. <br /> Material will then be conveyed to wet scalping screens where material larger than %2" (oversize) will be <br /> removed and conveyed to an oversize stockpile. Material smaller than(i.e.,passing the%Z"screen)will be <br /> placed into a slurry and pumped across additional screens. Material larger than 30 mesh (#30) will be <br /> removed by secondary screens and dewatered(to approximately 15%moisture content) and conveyed to <br /> the process waste stockpile. Material smaller than #30 will be further pumped thru attrition cells and <br /> cyclones to produce a less than#30 but greater than#140 mesh interim product (hereafter referred to as <br /> "#30/140"). This product will be dewatered and conveyed to the washed sand stockpile within the Wet <br /> Sand Storage Building. <br /> Washed Sand Stoc4ile and Decant System <br /> Washed (interim) product from the wet plant will be delivered to Wet Sand Storage Building (an <br /> approximately 610 ft. x 130 ft. enclosed structure) via conveyors, and stockpiled inside the structure via <br /> overhead tripper conveyors. The Wet Sand Storage Building will have an anticipated maximum stockpile <br /> height of approximately 48-ft., occupying a footprint area of approximately 568 ft. x 120 ft., sufficient to <br /> accommodate an estimated 70,000 cubic yards of(interim) product for a limited duration time period, <br /> during which residual moisture will be decanted from the material. The decant system will employ a <br /> perforated pipe underdrain system designed to drain to a common sump, from which recovered water will <br /> be pumped to the Wet Plant clarifier unit for clarification and subsequent re-use. <br /> Keenesburg No. 2 Mine_112 Reclamation Operation—November 22, 2019 <br />