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,JAACA <br /> P.O. Box 1887.702 Greoci Drive•Buena Vista CO 81211 <br /> "ASPHALT,CONCRETE,&AGGREGATES" Phone: (719)395-3790 Fax: (719)395-3794 <br /> Exhibit D-Mining Plan: <br /> The detailed mining plan for these three parcels is laid out as follows: <br /> A. General Schedule of Operation -Excavation of material for this requested property (Avery Extension Pit <br /> #2) will commence when all permits are approved and will continue for approximately Thirty (30) years. <br /> The total amount of material to be used on site or removed is approximately 4,000,000 cubic yards.Typical <br /> extraction operations will be in place throughout the winter months; however, removal or placement of <br /> material may occur throughout the year. <br /> B. Detail of Operation - As resources are depleted in the current Avery Pit, the first phase of material <br /> extraction from the Avery Extension Pit#2 will commence on the North end of the project site (near Gregg <br /> Drive). Topsoil will be removed and stockpiled for reclamation of slopes and pit floor. A shielding berm <br /> will be constructed out of onsite earthen materials to a height of 10-FT. The top of the berm will be 10-FT <br /> wide and will have 3:1 side-slopes creating a 70-FT wide overall berm. The berm will be stabilized <br /> pursuant to the temporary re-vegitation plan,presented in Exhibit E. The outside face of the berm bordering <br /> Gregg Drive and Rodeo Road will be slightly countered to help give the berm a more natural appearance. <br /> Material will be extracted by excavator, loader, and dozer. The mining will start at the ground level <br /> and advancing downward until a 15-FT high wall condition is encountered. To maintain a safe working <br /> environment,a second bench will then be established starting at the 15-FT height.This bench will be mined <br /> until a 15-FT high wall is present. At this point, the mining operations will return to the first bench. The <br /> remaining phases will be mined in the same manner, proceeding South and downward until at final level <br /> (approx. 30-40 FT below ground surface). At no point will mining activities be allowed to reach the <br /> groundwater level. As these benches proceed, the North, East, and West walls of the property will be <br /> sloped to a 3:1 grade. This will keep a safe working environment in addition to ensuring adequate <br /> material for final reclamation without any additional material. <br /> Storm water control measures will include sloping all areas towards pit to retain possible runoff. <br /> Berms and pit wall sloping will be used to ensure all storm waters are retained on site. Final <br /> construction will include reclamation of the pit pursuant to the requirements of Colorado Division of <br /> Reclamation, Mining and Safety. These reclamation activities will include slope stabilization, topsoil <br /> placement and seeding of all slopes and pit floor. Upon final reclamation, the land use is anticipated to be <br /> commercial and industrial parcels similar to the neighboring properties. <br /> ACA Products, Inc a 702 Gregg Drive; PO Box 1887 a Buena Vista,CO 81211 <br /> Phone 719-395-3790 a Fax 719-395-3794 <br />