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W 11 <br />k"M <br />MILL SITE EARTHWORKS FIELD MONITORING SUMMARY (WEEKLY REPORT) <br />Project Title: Mill Site Earthworks <br />Owner: Cripple Creek & Victor Gold Mining Co <br />Location: Cripple Creek & Victor Gold Mine <br />Work Element: Mill Site Earthworks <br />Date: December 17, 2011 <br />Reporting Period: 12/11/11 through 12/17/11 <br />Days <br />S <br />M <br />T <br />I W <br />T <br />F <br />S <br />Work Shifts <br />- <br />D <br />D <br />D <br />D <br />D <br />- <br />D = Day Shift <br />N = <br />Night Shift <br />Project No.: 84201125K0 <br />Contractor: Ames Construction Co., Inc. <br />Shift: Day <br />Ambient Temperature Range (F): Low: 9 °F to 19 °F ( + / -) High: 26 °F to 36 °F <br />AMEC CQA: Personnel On -site through the Reporting Period (See Attachment A). <br />Ames: None <br />CONSTRUCTION ACTIVITIES and PROGRESS: <br />I) Earthworks <br />A) Topsoil Stripping <br />Topsoil stripping within the Mill Site footprint was performed using various CAT dozers pushing <br />the material into stockpiles. The stockpiles were loaded into 40 -ton articulating haul trucks using a <br />CAT 385 excavator. The topsoil was placed in a stockpile area designated by CC &V. The <br />stockpile area was maintained using various CAT dozers. <br />B) Clear and Grub <br />Any trees or shrubs within the area of topsoil stripping were moved to an area to be processed by <br />Seed Masters when they mobilize and begin clear and grub activities. The trees and shrubs will <br />be chipped and mixed into the topsoil stockpile designated by CC &V. <br />C) Subgrade Preparation <br />Subgrade preparation was performed prior to structural fill placement in the areas shown on <br />Figure 1. Various CAT dozers were used to rip the existing surface to a depth of at least 6 inches. <br />Moisture conditioning of the subgrade was performed (when necessary) using a tandem axle <br />water truck. Compaction was performed using a 10 -ton vibratory smooth drum compactor passing <br />over the entire subgrade surface at least four times. The subgrade was inspected and approved <br />by an AMEC field representative, prior to fill placement. <br />In most areas, excluding flat areas were fills are started, the subgrade is keyed into as the fill <br />progress. This is due to steep slopes that are adjacent to most fill areas. In this instance, the <br />subgrade is inspected for organics and debris by an AMEC field representative prior to fill <br />placement (keying into the subgrade). <br />MEW Weekly Report WE 12.17.2011 <br />