Laserfiche WebLink
Alk <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: October 6, 2012 <br />Reporting Period: 9/3012012 through 10/6/2012 <br />Days <br />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 />D <br />D <br />D = Day Shift <br />N = <br />Night Shift <br />Project No.: 74201125K0 <br />Contractor: Ames Construction Co., Inc. <br />Shift: Day /Night <br />Ambient Temperature Range ( °F): Low: 20 °F to 41 °F ( + / -) High: 41 °F to 67 °F <br />AMEC CQA: Personnel On -site through the Reporting Period (See Attachment A). <br />Ames: Work activities were limited to pumping storm water from the previously placed SLF on Monday, <br />October 1, 2012. <br />CONSTRUCTION ACTIVITIES and PROGRESS: <br />I) Earthworks <br />A) Subgrade Preparation <br />Subgrade preparation was performed preparing for soil liner fill placement. Moisture conditioning <br />of the subgrade was performed (when necessary) using a tandem -axle water truck. Compaction <br />was performed using a 10 -ton vibratory smooth drum compactor passing over the entire subgrade <br />surface at least four times. The subgrade shown on Figure 2 was inspected and approved by an <br />AMEC field representative for SLF placement. <br />B) Overburden Fill Placement <br />No work performed during the week. <br />C) Slope Contouring <br />No work performed during the week. <br />D) Soil Liner Fill (SLF) <br />Soil liner fill (SLF) placement was performed in the areas shown on Figure 3. Subgrade was <br />approved and moisture conditioned prior to placement using a tandem -axle water truck. <br />Placement was performed using various CAT dozers and a John Deere 120 excavator in a one - <br />foot compacted lift. SLF material was hauled to the Mill Platform from the temporary SLF stockpile <br />previously located from the East Cresson stockpile using CAT 40 -ton articulating haul trucks <br />loaded by a CAT 988 front -end loader. Moisture conditioning of SLF material was performed in <br />place using a tandem -axle water truck and compaction was achieved using a 10 -ton vibratory <br />smooth drum compactor. Nuclear density testing, moisture verification, and depth check testing <br />was performed with results within project specifications. Test locations were surveyed by Ames. <br />MEW Weekly Report WE 10.06.2012 <br />