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TW11MM <br />PROCESS SOLUTION ENHANCEMENT SYSTEM FIELD MONITORING SUMMARY <br />(WEEKLY REPORT) <br />Project Title: CC &V/ PSES <br />Owner: Cripple Creek & Victor Gold Mining Co. <br />Location: Cripple Creek & Victor Gold Mine <br />Work Element: Process Solution Enhancement System <br />Date: April 21, 2012 <br />Reporting Period: 4/15/2012 through 4/21/2012 <br />Days <br />I S <br />M <br />T <br />W <br />T <br />F <br />S <br />Work Shifts <br />D <br />D <br />D <br />D <br />D <br />- <br />D = Day Shift N = Night Shift <br />Project No.: 74201125KO <br />Contractor: Ames Construction Co., Inc. <br />Shift: Day <br />Ambient Temperature Range (F): Low: 21 OF to 30 °F ( + / -) High: 42 °F to 53 °F <br />AMEC CQA: Personnel On -site through the Reporting Period (See Attachment A). <br />AMES /Lonestar: None <br />CONSTRUCTION ACTIVITIES and PROGRESS: <br />I) Process Solution Enhancement System (PSES) <br />A) Subgrade Preparation <br />Subgrade preparation was performed preparing for soil liner fill placement A CAT D6 dozer was <br />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 <br />B) Slope Contouring <br />Slope contouring of previously placed structural fill was performed using a CAT D -6 dozer. <br />CQA ACTIVITIES: <br />SUMMARY: <br />The CQA activities performed consisted of observing, documenting and recording the construction <br />activities of the contractor. <br />AMEC observed the preparation of subgrade <br />AMEC observed slope contouring. <br />PSES Weekly Report WE 04.21.2012 <br />