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Cmc CONTINENTAL MATERIALS CORPORATION Table D-2 Areas of Cut and Fills Grading Area Area Cut Volume Fill Volume (acres) (BCY1) (LCY2) Backfill 42.9 na 3,985,558 Upper slope 21.1 609,952 na Lower quarry (various areas) 75.1 2,711,346 na Total 139.1 3,321,298 3,985,558 Notes: 1. BCY: Bank cubic yards 2. LCY: Loose cubic yards 3. na: Not applicable 4. 20% swell is assumed for LCY 5. Topsoil needed is 112,000 LCY (c) Water Diversions and Impoundments Storm water from all areas of disturbance will be directed into the existing sedimentation systems for the mine throughout reclamation activities. After the water is clarified it will be discharged into existing drainages. A Colorado Discharge Permit System (CDPS)discharge permit for the current operations already exists and will be maintained through the life of the operation. The reclamation drainage will be constructed as the site is reclaimed, and this drainage network is discussed in Exhibit G. (d) Size of area(s) to be worked on at any one time Consistent with previous amendments, the affected lands boundary at the Pikeview Quarry coincides with the permit boundary as shown on the maps in Exhibit C. Grading may occur in any portion of the 240.5 acres of the quarry permit area throughout the life of the project. Once an area is graded to the reclamation topography, it will be topsoiled and seeded for final reclamation. (e) Timetables for Mining and Reclamation Operations Grading of the borrow areas onsite is expected to take one to two years. Importing material from offsite will take two to five years depending on availability of material. Importing material and grading the onsite areas will occur concurrently. Establishing vegetation is anticipated to take no longer than five years. Pikeview Quarry Amendment 4 D-6