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amec <br />Earth & Environmental <br />Summarv of SLF Drocessina <br />Location This Week Cumulative Comments <br /> tons tons <br />LOB Plant (Dump 5) 3,090 20,599 The plant has been down or limited <br /> production this week. <br />Totals 3,090 20,599 <br />G. Miscellaneous <br />• Continuing work on the 9775 VLF bench widening on the existing ore heap for the <br />planned relocation of the existing solution lines. <br />II. Underground Working <br />A. Drilling <br />• No work this week. <br />B. Mine Shaft/Stope Remediation <br />• No Activities <br />C. Lateral/Slot Remediation <br />• No Activities <br />III. Stormwater Management Structures <br />A. Control Structures <br />• No Activities <br />IV. VLF Geosynthetics <br />A. LLDPE Geomembrane 80 mil and 100 mil <br />• Poly-Flex has sent a pre-certification list for 100mil LLDPE for 28 rolls and 80mil <br />LLDPE for 5 rolls. Mil Certifications were obtained by TRI of Texas during the <br />manufacturing of the liner and all tests performed were in Project compliance <br />CQA ACTIVITIES: <br />SUMMARY: <br />The CQA activities performed consisted of observing, documenting and recording the construction <br />activities of the contractor. Field observations within the northwest portion of the VLF included stripping <br />of all frozen and unsuitable materials and placement of structural fill by method spec. as outlined in the <br />Project Documents. <br />Clay processing was intermittent due to mechanical problems with the clay plant located in Dump 5. <br />The materials processing plant located in Arequa Process Area has been in production all week. The <br />screening plant is producing 5 different materials types. <br />No work on Friday due to Ames annual Managers Meeting. Make-up day will be Saturday, March 14`" <br />Work has continued on the 9775 bench widening for the future re-location of the existing solution piping. <br />AMEC worked Friday day in the laboratory and office. <br />Sheet 3 of 9 VLF Weekly Report WE 03.07.09.D.doc