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amec­� <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: March 10, 2012 <br />Reporting Period: 3/4/2012 through 3/10/2012 <br />Days <br />S <br />M <br />T <br />W <br />I T <br />F <br />S <br />Work Shifts <br />D <br />D <br />D <br />D <br />D <br />D <br />D <br />N <br />N <br />N <br />N <br />N <br />N <br />N <br />D = Day Shift <br />N = <br />Night Shift <br />Project No.: 84201125KO <br />Contractor: Ames Construction Co., Inc. <br />Shift: Day /Night <br />Ambient Temperature Range (F): Low: 13 °F to 27 °F ( + / -) High: 36 °F to 47 °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 re- location was performed within the Mill Site footprint using a CAT D -9 dozer and a CAT <br />D -8 dozer pushing the material into stockpiles. The stockpiles were loaded into 40 -ton articulating <br />haul trucks using a John Deere 850 excavator. The topsoil was placed in a stockpile area <br />designated by CC &V. The stockpile area was maintained using a CAT D -9 dozer. <br />B) Clear and Grub <br />No work performed during the week. <br />C) Subgrade Preparation <br />Subgrade preparation was performed prior to overburden 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 CAT 773 water <br />truck. Compaction was performed using a 10 -ton vibratory smooth drum compactor passing over <br />the entire subgrade surface at least four times. The subgrade was inspected and approved by an <br />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 03.10.2012 <br />