2024-04-30_REVISION - M2015033 (14)

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� 5 6.4.4 EXHIBIT D — Mining Plan Any method that accelerates the operation timetable will be utilized, depending upon market conditions and the capacities of the operator. To this end, an existing conveyor system is established in the northeast comer of Tract A. Extracted resource may be conveyed to or from other Raptor Materials off-site plant facilities. One conveyor system and route are already established on the northwest corner of the permit area and will convey materials to or from the Kurtz operation to the North. A second conveyor route has been established along the west permit boundary to facilitate movement of materials to and from the adjacent Heintzelman operation; this conveyor extends onto the Bearson property, entering along the southwestern border of Tract A. Processed and unprocessed or otherwise Colorado Department of Health compliant inert materials may originate from different sources and locations for import and utilization for our on-site processing commercial, or reclamation interests; either as product in its unaltered state, or as otherwise processed, recycled, or repurposed from on-site processing and operations. All inert materials may arrive via conveyor or overland haulage. While initial operations will commence on the north boundary of Tract A, both Tracts A and B may be extracted concurrently. All extraction will proceed in a manner to minimize visual and audible impacts to adjacent lands and properties. In Tracts A or B, extraction will commence to facilitate removal of material from a nearby residence and County Road 28 to better distance those locations from operations over time; and to gain time to vacate or relocate any utilities, oil and gas lines, or other structures from the interior of the tracts as needed, and in cooperation with the owners or other responsible parties. Extraction activities -will remove aggregate to a weighted average depth of 30.0+ feet from the surface. Anomalous depths greater than 50.0± feet may occur. Temporary basin perimeter slopes created by extraction will conform to the geotechnical analysis of Exhibit S. All final basin (reservoir) slopes will be established concurrently with extraction and will conform to Rule 3.1 .5(7), as detailed under Exhibit E - Reclamation Plan. Extraction, which occurs within the basin at a 1 .25H:1 V slope, is expected to be complete within 5 to 7 years. Following extraction, slopes will be regraded at a 3H:1 V slope. Currently, the entirety of the western wall, or 1 ,760± linear feet, has been extracted and regraded. When fully extracted, there would be an estimated 9,357± linear feet remaining of wall perimeter that would need to be reclaimed in a worst-case scenario An estimate of the remaining volume to be regraded is provided by subtracting the volume of the finished, regraded basin (3,951 ,674± CY) from the proposed extracted basin configuration (4,098,487± CY) for a total volume to be regraded of 146,813± CY. Soils encountered during extraction will vary over the location in depth and extent. Actual soil variations, depths and descriptions, including potential volumes to be extracted, are detailed in Exhibit I & J: Soils and Vegetation Information, and are RAPTOR MATERIALS, LLC. PARCEL 122- RESOURCE DEVELOPMENT PROJECT APRIL 2024 A REGULAR IMPACT[1121 CONSTRUCTION PERMIT APPLICATION-COLORADO DIVISION OF RECLAMATION,MINING&SAFETY TECHNICAL REVISION 03