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1 12 APPLICATION PAGE 7 OF 35 <br />• <br />• <br />6.4.4 EXHIBIT D - MINING PLAN <br />(a) Descriptions of the methods of mining to be employed in each stage of the operations as related to the <br />surface disturbance on affected lands; <br />The proposed sand and gravel mining pit properties consists of four properties totaling <br />approximately 82.765 acres in size, and are irregularly shaped properties. The total <br />permit area will include 34.34 acres for all mining operations. The mining area will <br />include 30.25 acres for excavation of sand and gravel. All mining sand and gravel <br />operations including topsoil stockpiles, overburden stockpiles, water settling ponds, and <br />material processing will occur within the 30.25 acres. The permitted 34.34 acres allows <br />for buffer areas to be road construction and maintenance, drainage pipe installation, <br />temporary topsoil stockpiles, and temporary overburden stockpiles. Temporary <br />disturbances will include 0.19 acres to construct the access road and 0.04 acres or <br />(1,800 square feet for drainage pipe installation. All other access roads are currently <br />located on the site and will not require improvements. No other improvements are <br />anticipated outside the mining area. <br />The sand and gravel will be progressively mined across the permit area using open pit <br />mining techniques. Removal of overburden and mining for sand and gravel at the <br />highwall area will be required at a 3:1 slope. The mined areas along the perimeter of <br />the reclamation ponds will be set to final grade and backfilled using overburden from <br />the next mined area and imported inert fill where necessary to achieve final grades. <br />As the backfill material is placed near final grade, the areas will be prepared for site <br />reclamation. <br />The mining operations will utilize standard heavy construction equipment during the <br />sand and gravel mining operation. This includes equipment such as trackhoe <br />excavators, front-end loaders, scrapers, graders, compactors, water trucks, dump <br />trucks, rock crushers, conveyors, etc. The sand and gravel material will be crushed, <br />screened, and stockpiled at the permit site. The operations will not be producing <br />"washed" rock products. <br />A portable scale facility will be located near the access of the site to track materials <br />removed from the project site. <br />Surface disturbance activities and disturbed areas are listed below: <br />ACTIVITY MA) <br />Access Roads <br />Installation of outlet pipes <br />Scales <br />Topsoil Stripping <br />Process Equipment (In Topsoil Stripped Area) <br />Material Stockpiles (In Topsoil Stripped Area) <br />;. DISTURBED AREA (ACRES <br />0.19 <br />0.04 <br />1 <br />4 <br />4 <br />4 <br />Active Mining /Backfill Area (In Topsoil Stripped Area) 30.25 <br />Settlement Ponds 1 <br />•