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Rill: gravel Pit 4I 4�,gust 2021 <br /> 5.2.3 Mining Extraction (Phase 3— in 2 Stages) <br /> This section describes the mining methods, earthmoving, all water diversions and <br /> impoundments, and size of the areas to be worked during Phase 3. <br /> Phase 3 includes the mining extraction operations which will take place in 2 extraction <br /> stages and include the areas east of the delineated wetlands. Fencing will be installed at <br /> least 10-feet away from the tailwater channel and wetlands to prevent disturbance of these <br /> resources. <br /> Size of Area Worked Stage 1 <br /> The size of area involved with Phase 3 Stage 1 is approximately 18 acres (see Table 1). <br /> Scott Contracting, Inc. will mine the Stage 1 area (see Exhibit D1, Figure 10 and Exhibit <br /> D3 and D4, Figures 12 and 13) and begin reclamation prior to mining Stage 2. <br /> The estimated amount of material anticipated to be mined in Stage 1 is: <br /> • Mine Cut (21-foot-thick cut across the 18-acre Stage 1 area; 1:1 slope) = 499,335 <br /> CY <br /> o Includes approximately 10,719 CY for the berm construction <br /> Size of Area Worked Stage 2 <br /> The size of area involved with Phase 3 Stage 2 is approximately 8.7 acres (see Table 1). <br /> Scott Contracting, Inc. will mine the Stage 2 area (see Exhibit D1, Figure 10 and Exhibit <br /> D3, Figure 12) upon completion of the mining and initiation of reclamation activities for <br /> Stage 1. <br /> The estimated amount of material anticipated to be mined in Stage 2 is: <br /> • Mine Cut (21-foot-thick cut across the 18-acre Stage 1 area; 1:1 slope) = 250,007 <br /> CY <br /> o Includes approximately 6,006 CY for the berm construction <br /> Equipment <br /> This phase will use conventional mining equipment for this phase and include, but not be <br /> limited to, a bulldozer, track-hoe, screening plant, wash plant, crusher, and a 35-ton haul <br /> truck. <br /> 6.2.3.1 Mining Methods and Earthmoving <br /> This phase of the project will include mining, stockpiling of material for screening, washing <br /> and crushing processes. <br /> Scott Contracting, Inc. will proceed with mining during this phase with the Stage 1 area <br /> mining and extraction, reclamation of Stage 1, then mining and extraction of Stage 2, <br /> reclamation of Stage 2. The crusher will be placed at existing grade within the Stage 1 <br /> footprint and as excavation proceeds down to the lowest elevation of the gravel. When <br /> enough material has been excavated in Stage 1, the crusher will be moved to the mining pit <br /> 26 <br />