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

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Exhibit D Page 9 All administrative and plant facilities, and related processing activities(to include product load-out)will be located in the central portion of Section 2; T5N, R63W,with plant ingress and egress extending directly from Weld County Road 68 by means of a private(controlled access)paved road extending south from Weld County Road 68 to the Permit Area. The controlled access segment(e.g.,the private road)functions as such due to the presence of a 24- hour per day manned security office located at the intersection of Weld County Road 68 and the site access private road. Following plant facilities development,mining will commence in the northeast portion of the Permit Area(within Section 2)at a box cut location westerly adjacent to the plant facilities(to simultaneously establish a process discard stockpile location and provide the initial material to the ROM(i.e.,plant feedstock)stockpile proximal to the wet plant facilities. Mining will then generally advance to the west across Section 3;T5N;R63W(Years 2 through 7), ultimately terminating its westward advance at the east edge of existing natural gas and oil infrastructure located on the western quarter of Section 3; T5N;R63W. Thereafter,mining will transfer over to areas south of the mine plant, more specifically through the south quarter of Section 2;T5N; R63W, continuing a southerly advance into Section 11;T5N;R63W(latter portion of Year 7 through early Year 10)at which point the TMDZ-1 boundary is encountered. Mine planning within TMDZ-1 remains indeterminate at this juncture due to a paucity of drill hole data;however,CSC reserves the right to incorporate some or all of this area into the long-term mine plan. Upon encountering TMDZ-1,the active mine pit will be moved over to the west,with a new box cut opening pit operations in the northeast portion of Section 10;T5N;R63W(latter portion of Year 10),thence advancing westerly through Year 12,followed by movement to the south in Year 13. Years 14 through 20 will exploit the remainder of Section 10, advancing into Section 15;T5N; R63W and continuing to a southern terminus at the approximate mid- point of Section 15(through the end of Year 20), at which point TMDZ-2 is encountered. As is the case with the above-mentioned TMDZ-1,mine planning within TMDZ-2(which also extends easterly into the SW 1/4 of Section 14; T5N;R63W and abuts TMDZ-1)also remains indeterminate at this juncture due to a paucity of drill hole data; however,CSC reserves the right to incorporate portions thereof, or the full extent of these areas into the long-term mine plan, as well. Each of the TMDZ areas are depicted on Exhibit D-2: Mine Plan. 4. Mining Plan Industrial sand will be mined from an open-cut pit utilizing direct excavation methods(e.g.,no blasting will be employed). Mining will generally be conducted via a single or two-bench configuration(dependent on the localized resource depth profile)employing hydraulic excavator and/or front-end loader units for excavation and loading of ROM material to dedicated off-road articulated haul truck(s). 4.1 Mine Operating Schedule The Kersey Mine operations are anticipated to operate on a continuous 24-hour per day basis,seven days per week. An estimate between 20 and 40 persons are anticipated for each 12-hour shift,to include about 4 to 8 management and administrative personnel and about 16 to 32 equipment operators/laborers. Operating hour schedules and/or employee counts may be modified if production and/or market conditions warrant doing so. 4.2 Mine Access Route and In-Pit Haul Roads Mine-related traffic will largely arrive and depart the general area via Colorado State Highway 392,which extends northeasterly from the Greeley area to Colorado State Highway 14,near the Town of Briggsdale. The Kersey Mine Colorado Sand Company II, LLC Kersey Mine Construction Material Regular(112)Operation Reclamation Permit Application June 7,2024