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- Mine office (portable) <br /> Scale <br /> - Portable fuel storage <br /> Equipment: <br /> - Front-end loaders <br /> - Bulldozers <br /> - Scrapers <br /> - Haul trucks (off highway) <br /> - Water trucks <br /> - Graders <br /> - Excavators <br /> Only a loader and scale will be located on the site full time, as most of the year the mine will not <br /> need to be running at full production. No permanent structures will be built within the mining <br /> area. All production facilities and equipment will be portable. Elam Construction will provide <br /> portable toilets and bottled water to employees on site during operations. Any fuel stored on site <br /> will have full secondary containment that can carry 110% of the fuel tank volume. All facilities <br /> will be removed during reclamation. Explosives will not be used at the site. <br /> 4. Topsoil and Overburden Handling <br /> Topsoil ranges from 4 to 6 inches overlying 0 to 5 feet of overburden. Topsoil and overburden <br /> will be stripped with appropriate earthmoving equipment as deemed suitable for the operation <br /> such as front-end loaders, dozers, excavators, and water trucks. Topsoil and overburden will be <br /> stockpiled separately onsite in either designated stockpiles, berms, or directly placed to create <br /> final reclamation slopes. These materials will be directly placed in the designated stockpile <br /> areas or berms which can be seen on Map C-2. Stockpiles to be in place longer than 90 days <br /> will be seeded with the permanent seed mix to prevent erosion (see Exhibit E for seed mix). <br /> Berms will be constructed by the Phase 3 and 4 areas along CO-65 as topsoil and overburden <br /> is stripped from Phase 1 and 2. These berms will be vegetated to prevent erosion and provide <br /> screening. An average of 5 inches of topsoil and 3 feet of overburden were assumed to <br /> determine the overall material balance shown in Table D-2. <br /> Table D-2 Topsoil and Overburden Material Generated During Mining <br /> Material Generated (CY) <br /> Topsoil 45,300 <br /> Overburden 326,100 <br /> The presence of the multiple lakes created during reclamation means that there will be more <br /> topsoil and overburden generated by stripping activities than needed for reclamation. This is <br /> Delta Paving Gravel Pit <br /> April 2022 D-3 Lewicki&Associates <br />