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I~ U$R QUESTIONNAIRE A detailed description of the method of mining operation. The description shall include: a. The types and numbers of structures that will be erected (built) on site including operation and processing equipment to be employed. Conveyors will be erected on site to convey the materials to the processing equipment located at the adjacent Baseline Site (Weld County USR permit 1172). Refer to the Mining Plan Map for the approximate location of the conveyors. The scale house and office that are located on the Baseline Site may be relocated to this site (Dersham property) to enable the Baseline site to be completely mined and reclaimed (the operator will continue to use the same access). The operator will import and export material. b. The number of shifts to be worked and the maximum number of employees. Hall-Irwin Corporation anticipates that there will be a maximum of two shifts and twelve employees working on this site. c. Whether the operation will involve a wet or dry pit. The operation will involve a dry pii. The operator will excavate dewatering trenches down to bedrock along the perimeter of the mining phase. Groundwater collected in the dewatering trench will be discharged to the adjacent Baseline Resource settling ponds and discharged per the existing Colorado Discharge Permit System (CDPS) permit. d. County roads and bridges to be utilized, along with site entrancelexit points. Not applicable. The proposed operation will not generate any new mining traffic. The operator will convey the mined materials to the existing Baseline Resource site, where it will be processed and hauled off of the site in accordance with the Weld County Road Maintenance Agreement. The accesses that are approved through AM RE-4290 and the 2~d Am SE-656 will not be used for this USR or for the Bestway Batch Plant. Refer to the Weld County Road Access Information Sheet, the Mining Plan and the Traffic Study for details. e. The size of the area and stages to be worked at any one time. The site will be mined in three phases. The phases will range from 7-17 acres in size. f. A timetable giving the periods of time and number of phases to be worked, which will be required for the various phases of the operation. The timetable is highly dependent on market demand. However, it is anticipated that it will take 1.5 - 2 years to mine each phase. It is likely that the operator will mine and reclaim the site concurrently. That is, Phase 1 will be reclaimed while Phase 2 is being mined. Both sites should be completely reclaimed within 1-2 years after mining operations cease. Mining will likely begin in Phase 3 within four years of the end of mining Phases 1 and 2, depending Hall-Irwin Corporation - ParkerlDersham Resource -Weld Counly Use by Special Review Permit Application Questionnaire -1