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performed using the extrusion welding method for all marked defects. Vacuum testing was <br />performed for all extrusion welded seams and repairs. <br />2) Geomembrane Exposure <br />The existing Phase IVC geomembrane was exposed as needed using a John Deere 35D <br />excavator and laborers. An AMEC field representative observed the geomembrane exposure <br />constantly. <br />3) Anchor Trench <br />Approximately 350' of anchor trench excavation was performed using a John Deere 35D <br />excavator and laborers. The anchor trench was inspected by an AMEC field representative and <br />found to be constructed in accordance with design drawings and project specifications. <br />CQA ACTIVITIES: <br />Approximately 350' of anchor trench backfill was performed using a John Deere 35D <br />excavator, a vibratory plate compactor and laborers. An AMEC field representative observed <br />the backfill and it was found to be constructed in accordance with design drawings and project <br />specifications. <br />4) Geomembrane Acceptance <br />Primary 80mil geomembrane (P1 — P6) was inspected by AMEC and Lonestar representatives <br />and found to be installed within project specifications and acceptable for continued <br />construction activities. <br />C) Structural Fill <br />1) Phase IV Perimeter Road <br />The existing road was realigned using a CAT D -6 dozer and a 10 -ton vibratory smooth drum <br />compactor to allow access around the new berm modification. <br />SUMMARY: <br />The CQA activities performed consisted of observing, documenting and recording the construction <br />activities of the contractor. <br />AMEC inspected and approved subgrade prior to geomembrane deployment. <br />AMEC observed, logged data, and assisted in the installation of geomembrane. <br />AMEC observed existing Phase IVC geomembrane exposure. <br />AMEC observed the excavation and the backfill of the anchor trench. <br />AMEC inspected and approved 80mil primary geomembrane for DCF placement. <br />AMEC observed and assisted in the placement of the SLF berm. <br />PIVCBR Weekly Report WE 10.29.2011 <br />