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may be required to supplement the imported fill. Castle will submit a Technical Revision if <br /> additional grading is required. <br /> Castle is currently negotiating with the City of Colorado Springs and private companies to develop <br /> the property adjacent to the mine. Regardless of the development type, all or nearly all of the <br /> imported material necessary for reclaiming the mine can be provided by this development with <br /> the costs to deliver the material to the existing quarry stockpile area burdened by the developer. <br /> Temporary haul roads on the face of the fill slope will be used to transport material from the <br /> loading areas to the fill areas. The exact location of access and haul roads are not shown on the <br /> figures at this time as this level of detail will be based on field observations during the execution <br /> of the Plan. As these roads are required, Castle will submit a Technical Revision to incorporate <br /> new facilities showing the location and size (width and length) of each road into the Mining Plan. <br /> The roads will all be constructed within previously disturbed areas. <br /> The acreage and cut and fill volumes for each area are included in Table D-1. <br /> Table D-1 <br /> Areas of Cut and Fills <br /> Area Cut Volume Fill Volume <br /> Grading Area z <br /> (acres) (BCY ) (LCY ) <br /> Backfill 42.9 na 3,870,000 <br /> Upper slope 21.1 470,000 na <br /> Lower quarry (various areas) 56.8 1,060,000 na <br /> Imported fill na na 2,030,000 <br /> Total 120.8 1,530,000 3,870,000 <br /> Notes: <br /> 1. BCY: Bank cubic yards <br /> 2. LCY: Loose cubic yards <br /> 3. na: Not applicable <br /> 4. 20% swell is assumed for LCY <br /> 5. Topsoil needed is 97,000 LCY <br /> (c) Water Diversions and Impoundments <br /> Storm water from all areas of disturbance will be directed into the existing sedimentation systems <br /> for the mine throughout reclamation activities. After the water is clarified it will be discharged into <br /> existing drainages. A Colorado Discharge Permit System (CDPS) discharge permit for the current <br /> operations already exists and will be maintained through the life of the operation. <br /> Pikeview Quarry Amendment 4 <br /> 2019 <br /> D-5 <br />