2023-05-25_PERMIT FILE - M2022048 (18)

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1 r MINING PLAN AND TIMETABLE EXHIBIT D(CONT) Plant Site and installed the slurry wall around Phase 1 . Much of the 205 acres would be within the highwater line of the reservoirs that would be covered with water and would need no soiling or revegetation. This amount of disturbance may change as the mine develops but prior to exceeding the initial 205 acres, a Technical Revision will be filed to increase the bond and allow for more disturbance . This map shows the estimated location of the final slopes around the perimeter of the entire areas to be mined. The estimated reservoir highwater line, bank areas to be armored , the top of mining slope and slurry wall locations are shown. It also shows the maximum working face (highwall) for each Phase and the estimated cut/fill volume per foot to grade the working face highwall back to 3h to 1v. No more than 1000 feet of total permanent bank sloping will be needed (500 ' on each side of highwall) . The volume to complete the backfillincr on the exterior slopes is shown. In Phase 2 this volume will be greater because any area mined within 300 feet of the river bank will be backfilled so a 300 foot setback can be maintained when the reservoirs are built . This river bank excavation area will be done in 500 feet or less section that will not be left open for more the 12 months before backfilling, sloping and armoring begins in any given section . Of the 472 . 40 acres ± in the permit area, approximately 388 . 12 acres ± will be disturbed by mining. Within the disturbed area 364 . 71 acres will be mined. The 23 . 41 acres of unmined area will be the setback margins between the slurry wall and the top of slope into the reservoirs . This area will contain roads for access to the reservoir areas during and after mining. EXHIBIT F — RECLAMATION PLAN MAP shows how the reservoirs will be developed. As mining progresses a reservoir area will be sold and a condition of the sale may require LGE to permit the owner of the reservoir to start construction of facilities related to the reservoir (s) - such as installation of pump houses, inlet/outlet structures, rip-rap, etc . This would only happen if the reservoir owner does not want to wait for DRMS permit acreage release of that Phase . In this case, L.G. Everist would have already reclaimed the reservoir phase (including liner certification, final grading of the reservoir slopes, armoring and initial seeding) , but the phase acreage is not yet released from the DRMS permit (due only to vegetation growth) . L.G. Everist would file Technical Revisions as needed to incorporate the changes . At any given time, mining and "concurrent reclamation" may be occurring in one or more phases to accommodate the blending of L.G. EVERIST, INC-WEST FARM RESERVOIRS May 11, 2023 10