2019-11-27_PERMIT FILE - M2019058 (10)

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D-4 closest of which will be receiving growth medium and the remaining four which will be in various stages of revegetation monitoring and maintenance; and the long-term (life-of-mine) plant area and associated facilities, some of which will be subject to advance reclamation; however, reclamation of the remainder of these facilities will be deferred to the end of life-of-mine. Dimensionally, a nominal overall pit width(i.e., active face)will typically be on the order of 2,500 ft. wide; and, the active pit floor area behind the mining face (necessary to accommodate loading and haulage of the ROM material)will typically extend to approximately 300 ft.at full mine-out of a given annual mining block. These dimensions will be subject to ongoing variances, however, based on mineable resource thickness, undulating topography, and other influencing factors (e.g., operational constraints,etc.),which may include the following: • Presence of rights-of-way or easements; • Presence of oil and gas wells or ancillary facilities; and, • Mining Block and/or Permit Area boundaries or other defined mining limits. (e) An approximate timetable to describe the mining operation. The timetable is for the purpose of establishing the relationship between mining and reclamation during the different phases of a mining operation. An Operator/Applicant shall not be required to meet specific dates for initiation, or completion, of mining in a phase as maybe identified in the timetable. This does not exempt an Operator/Applicant from complying with the performance standards of Section 3.1. If the operation is intended to be an intermittent operation as defined in Section 34-32.5-103(11)(b), C.R.S., the Applicant should include in this exhibit a statement that conforms to the provisions of Section 34- 32.5-103(11)(b), C.RS. Such timetable should include: (i) an estimate of the periods of time which will be required for the various stages or phases of the operation; (ii) a description of the size and location of each area to be worked during each phase; and, (iii) outlining the sequence in which each stage or phase of the operation will be carried out(Note: Timetables need not be separate and distinct from the mining plan,but may be incorporated therein); It is anticipated that site development activities will commence within 3 months of procurement of all necessary permits, approvals, and authorizations. Such development activities will include plant area site preparation, followed by plant facilities construction and concurrent pit"development" activities (i.e.,the simultaneous establishment of initial,pit-floor process waste stockpile location,thus providing an initial ROM stockpile)to ready the mining zone for full-scale,steady-state operations. Keenesburg No. 2 Mine_112 Reclamation Operation—November 22, 2019