2025-03-14_PERMIT FILE - M2025016 (14)

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// PAGE 6 EXHIBIT E Raptor Materials, LLC Cogburn Sand, Gravel, and Reservoir Project February 2025 A Regular Impact (112) Construction Permit Application – Colorado Division of Reclamation Mining and Safety, Office of Mined Land Reclamation The estimated timetable for extraction, commencing approximately winter 2025, is estimated to take 8- 9± years combined, or longer, followed by an additional five years to complete reclamation; or a total estimated life of the mine of 13-14± years; ending approximately winter 2038 to 2039. This is a life of the mine operation and all timetables are estimates and may prove shorter or longer than stated. The final determination will occur five years after the deposit is exhausted and all marketable product has been removed and necessary infill completed at the location to the point of final reclamation as approved or modified under the terms of the permit is completed. ii. A description of the size and location of each area to be reclaimed during each phase; and The final land configuration will ultimately result in one 10.4-acre pit backfilled to approximate original contour and two (2) reservoir basins totaling 60.4 surface acres, with a static water elevation surface area of 45.4 acres as illustrated on the following Exhibit F - Reclamation Plan Map. The map details the post resource recovery land form establishment. The size of the resulting basins is a function of area geology and available resource relative to man-made obstructions that serve to prohibit a greater linkage. iii. An outline of the sequence in which each stage or phase of reclamation will be carried out. Table E-1 provides a projection of mine development and regrading/reclamation. The plan as described in Exhibit D and above in this Exhibit E, is a forecast and may vary according to market conditions with mining and subsequent regrading occurring faster or slower, sometimes significantly so. The geology may also dictate changes in the rate of extraction. If efficiency demands in a higher production demand scenario, separate areas could be developed in the manner described in Exhibit D simultaneously. Such changes may happen quickly and would be addressed in the Annual Report. Section 2.F A description of each of the following: Final grading - specify maximum anticipated slope gradient or expected ranges thereof; As part of reclamation, lands situated above the anticipated final water level of the completed basins, and within 10± feet below the anticipated final water level of the basins, will be graded to 3H:1V, or flatter. Lands below 10± feet from the anticipated final water level of the basins will also be graded to 3H:1V, or flatter, unless 2H:1V slopes are otherwise approved by subsequent permit revision. All basin walls below 30 ft bgs will be graded to 3H:1V or flatter. Naturally occurring or previously established slopes may exceed 2H:1V where not otherwise affected by extraction activities and may not be altered as part of reclamation unless necessary to facilitate the reclamation of affected lands. All affected lands between the extraction limits and remaining above the anticipated high-water mark of the basins will be capped with a minimum of six (6.0±) inches of soil, as supported by Exhibit I– Soils Information. Timing and use of soil are detailed further under Exhibit I– Soils Information and Exhibit L – Reclamation Costs. Where compacted lands exist, and are to be revegetated, those locations will be ripped prior to re- soil application. There are no known areas of compaction at the time of this application which would require such activity; and ripping remains a contingency of the application.