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CRIPPLE CREEK & VICTOR GOLD MINING Co. AT <br />ANGLOGOLD ASHANTI (COLORADO) amec <br />SQUAW GULCH (VLF) WEEKLY REPORT foster <br />wheeler <br />A Cat excavator extended the existing tertiary underdrain trench located above <br />station B16+00 approximately 100 LF. A blanket drain, consisting of Drain Cover Fill, <br />was constructed to funnel underground springs into the modified underdrain trench. <br />Laborers placed geofabric, 80 -mil HDPE geomembrane, drain rock and drain cover. The <br />entire site was then covered with geo-fabric. Subgrade was repaired to design elevation <br />and compacted per project specifications. An additional area was observed to be <br />discharging water downslope from the excavated trench. "Hole Plug" (50% bentonite and <br />50% cement) was placed downslope between the interface of fabric, 80 MIL HDPE and <br />the down -gradient underdrain trench wall. All water was diverted into the primary and <br />secondary underdrains. <br />A technical memo will be generated to address deviation of design with respect to the <br />tertiary underdrain. <br />Leak Detection: <br />The removed portion of leak detection, approximately 40 LF, was replaced per project plans and <br />specifications upon completion of the tertiary underdrain between A14+00 to C11+00. <br />Miscellaneous: <br />Amec personnel continued LVSCS pump monitoring and observation. <br />B) Underground Workings: <br />Anaconda Mine Complex: Step 4: Completed second layer of geogrid installation. Completed <br />placement and compaction of the Select Structural Fill material. Further remediation required. <br />UG #6050: A John Deere 670 excavator removed shot rock from the working in preparation for <br />geogrid subgrade. Further remediation required. <br />UG #6004: A production blast occurred during this reporting period. A John Deere 670 <br />excavator removed shot rock from the working in preparation for geogrid subgrade. Further <br />remediation required. <br />UG #6531: Continued drilling operations, 700LF. Further remediation required. <br />UG #6455: Continued drilling operations, 2,900LF. Further remediation required. <br />UG #6673: A production blast occurred during this reporting period. Further remediation <br />required. <br />C) Geomembrane: <br />A second sample of the exposed geomembrane in Phase 1 was collected for exposure testing <br />(P65). Both samples, P65 and P103, were shipped to a third party laboratory for conformance <br />testing. A technical memorandum will be generated to discuss the deviation of specified <br />exposure limits. <br />Geomembrane tie-in to PSSA was exposed between B12+00 and B14+00. Slope rehabilitation <br />was performed to fix subgrade and Soil Liner Fill surface. <br />Geomembrane installation within the PSSA continued this week performing deployment, <br />seaming, repair, and QA/QC activities. Geomembrane installation was performed at the ADR <br />pad and PSSA northwest slope. Approximately 174,328 square feet of 80mil LLDPE <br />geomembrane was deployed. Soil Liner Fill was inspected and approved by AMEC, Ames and <br />