2024-06-07_PERMIT FILE - M2024026 (23)

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Exhibit D Page 25 anticipated that oversize material will generally be utilized in miscellaneous site grading and/or backfill activities. • Product Storage Silos and Loadout Facilities Eight separate product storage silos will be situated along the loadout road at a location north of the Plant Area. The product storage silos will directly fill third-party over-the-road tractor-trailer units via telescopic spout(s)equipped with integrated dust collection capability. CSC estimates that, at full-scale operations,an average of approximately 11,000 tons per day of saleable product will be loaded,resulting in an estimated total of 440 round-trip truck-trips per day.In addition to this,maintenance and service vehicles and material/supply delivery vehicles are anticipated to add another 10 to 20 round-trip truck-trips per day,on average.Each loaded/scaled truck will be provided with a load ticket, and once loading is completed,the trucks will continue east and turn north at the end of the loadout road in order to re-access the private site access road, eventually returning to the site access point(guard installation)and Weld County Road 68. Trucks would subsequently access Colorado State Highway 392, with ultimate delivery of the industrial sand products being to customers located within the regionally proximal area. • Ancillary Facilities Certain ancillary facilities will be established to support the mining and processing operations,to include the following: o Plant Offices-the main plant office will consist of one 75-ft by 30-ft portable containerized unit aligned alongside the west side of the dry sand storage area. This unit will be utilized as the primary administrative office.One additional unit,also consisting of one 75-ft by 30-ft portable containerized unit,will also be located in this area,which will serve as an employee breakroom. o Parking-Vendor and visitor parking will be established proximal to and generally south of the main plant office(s),as will employee parking. o Water Supply and Storage-Onsite water storage will be provided mainly through a bulk water storage tank(21,000 gallons capacity)located proximal to the wet plant facilities. In addition, in- process vessels,to include the clarifier unit(45,000 gallons capacity)and the "clear well"(13,000 gallons of clarified water)will further augment the water supply(in-circuit). With respect to raw water supply requirements, CSC has estimated the total(in-circuit)water requirements for the Kersey Mine operations to be on the order of 9,000,000 gallons. Make-up water requirements for mining and processing activities are anticipated to be approximately 800,000 gallons per day, inclusive of all requirements for process water make-up that would be attributed to evaporative loss, dust control applications,entrainment in fines,etc. Fugitive dust suppression activities(i.e.,the use of water trucks for haul road and related dust suppression requirements)are anticipated to consume,on average, an estimated 32,000 gallons per day. Dust suppression water will be applied to roads internal to the Permit Area on an as-needed basis,with water being sourced directly from the main bulk storage tank. No specific provision has been made for personnel hygiene uses(such as showers, etc.)as such activities are to be carried out offsite. Onsite sanitation facilities will initially be provided by portable toilet units Colorado Sand Company II,LLC Kersey Mine Construction Material Regular(112)Operation Reclamation Permit Application June 7,2024