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~~ <br />EXHIBIT D -MINING PLAN <br />This section follows the requirements outlined in Section 6.4.4. <br />(a) Description ojthe methods of mining to be employed in each stage of the operation as related to <br />any surface disturbance on affected lands <br />Aggregate will mine the site in five sections or pods. The mining sequence will begin in Pod <br />and continue in order through Pod 5. Pod 5, which is about l0 acres in size, will contain the <br />processing equipment, material stockpiles and the wash pond. <br />Site Preparation <br />Initial disturbance of the property will include preparation for the processing site and installation <br />of a slurry trench around the proposed mining area. The processing site will be elevated out of <br />the 100-yeaz floodplain to allow historic flood drainage to pass throughout the site without <br />impacting the processing equipment. <br />Proposed Mining Process for Each Section <br />After the site is dewatered, scrapers will strip the topsoil and overburden and stockpile it along <br />the perimeter of the azea to be mined. The overburden will ultimately be used in reclaiming and <br />sloping the shore. Next, sand and gravel will be excavated by front end loader and transported to <br />the Pod 5 processing plant by a conveyor belt system or haul truck. At the processing plant the <br />material will be screened, crushed, washed and stockpiled to await transportation to its final <br />destination. The processing plant may also process imported material. The stockpiles will be <br />situated to reduce noise created during the operation. This will also reduce the visual distraction <br />caused by moving equipment. Concurrent reclamation will be occumng throughout the mining <br />process. <br />Processing /mported Material <br />Aggregate Industries may process materials imported from other sites. <br />(b) Earthmoving <br />Sand and gravel will be excavated by front end loader and transported to the Pod 5 processing <br />plant by a conveyor belt system or haul truck. It is anticipated that gravel materials removed <br />from the five pods will total approximately l3 million tons (800,000 - l.5 million tons per year). <br />(c) All water diversions and impoundments <br />Wash water will be impounded in a small pond within the processing azea and recycled through <br />a settling pond. Water from the initial site dewatering will be discharged into a settling pond <br />then to the South Platte River consistent with a NPDES permit. <br />AGGREGATE INDUSTRIES, INC. - MILLIKEN RESOURCE 112 PERMIT PAGE 13 <br />