2022-11-18_PERMIT FILE - M2022048 (5)

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MINING PLAN AND TIMETABLE EXHIBIT D(CONT) Road located on the east side of CR 21 and approximately 1 . 37 miles north of Highway 66. In most cases, existing farm roads within the permit area will be used for mining needs and existing farm entrances on the paved roads will be used to cross the pub- lic ROW' s . The initial Plant Site will be located on approxi- mately 50. 00 acres of Phase 4, located on the southeast corner of CR 21 and CR 32 . 5. This Plant Site will be used throughout the life of the mine, as material will be conveyed or hauled to the plant from each Phase. In the future, 2 conveyor crossings may be installed from the northern area to the southern area. These crossings will be self-contained clear span units over CR 32 . 5 with all support structures to be built outside the road ROW' s, but within the affected lands . They are part of the approved Platteville Devel- opment Plan and this would only happen after LGE has filed and received approval for a Technical Revision with the Division that would include showing the proposed location and design details for the crossings . The approximate proposed locations are shown on EXHIBIT C-1 MINING PLAN MAP. The phase access roads will be constructed of gravel ob- tained from on site. They will be at least 20 feet wide and graded to allow for drainage into the site and have ditches as necessary to collect runoff. Any runoff from the roads will be retained on-site and allowed to soak into the ground or evapo- rate. The roads will be maintained as needed. Access roads will be built around each water storage reservoir to provide access during mining, reclamation, and after release. The access roads will remain when reclamation ends as they will be used to access the property. GEOLOGIC SETTING The affected lands are located along the South Platte River in a Quaternary age, Piney Creek alluvial deposit . The eastward dipping beds of upper Cretaceous age Laramie formation are over- lain at an angular unconformity, by the Piney Creek alluvium. The sand and gravel encountered in the Piney Creek alluvium are a result of water erosion and redisposition of rock materials from the Front Range of the Rocky Mountains . The deposition of this material occurred during a time when the river was much larger than it is now. But, judging from the scarcity of large rocks found at the location, the velocity of the river must have slowed L.G. EVERIST, INC-WEST FARM RESERVOIRS November 2022 6