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ameO <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: May 26, 2012 <br />Reporting Period: 5/20/2012 through 5/26/2012 <br />Days <br />JSJM <br />TJW <br />T�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: 32 °F to 45 °F ( + / -) High: 57 °F to 69 °F <br />AMEC CQA: Personnel On -site through the Reporting Period (See Attachment A). <br />AMES /Lonestar: None <br />CONSTRUCTION ACTIVITIES and PROGRESS: <br />1) Earthworks <br />A) Soil Liner Fill (SLF) <br />Soil liner fill (SLF) finish grading and placement was performed. Subgrade was approved and <br />moisture conditioned prior to placement using a tandem -axle water truck. Placement was <br />performed using two CAT D -6 dozers in a one -foot compacted lift. Moisture conditioning of SLF <br />material was performed in place using a tandem -axle water truck and compaction was achieved <br />using a 10 -ton vibratory smooth drum compactor. Nuclear density testing, moisture verification, <br />and depth check testing was performed with results within project specifications. Test locations <br />were surveyed by Ames. <br />B) Drain Cover Fill (DCF) <br />No work performed during the shift. <br />II) Geosynthetics <br />A) Geomembrane Installation <br />Geomembrane installation was performed for the PSES project performing deployment, seaming, <br />and repair /QC activities. Approximately 74,066 square feet of 80mil LLDPE was deployed using a <br />CAT 950 front -end loader with spreader -bar attachments. Subgrade was inspected and approved <br />by AMEC and Lonestar representatives prior to geomembrane deployment. Approximately 4,379 <br />linear feet of seam was fusion welded using five fusion welding machine /welding technician <br />combinations. Eleven destructive test samples were marked during fusion seaming. <br />Approximately 173 linear feet of seam was extrusion welded using one extrusion welding <br />machine /welding technician combinations. One destructive test sample was marked during <br />PSES Weekly Report WE 05.26.2012 <br />