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Phase IVc Summary No. 18 Page 3 043-2170 <br />Golder observed geomembrane deployment, documenting ambient temperature, panel dimensions, <br />thickness, seaming, tie-in overlap, and seam testing (trial seams, pressure testing). Geomembrane <br />installed in the Phase IVc OSA met the project specifications. <br />Golder visually observed the placement of DCF in the Phase IVc OSA area. Golder CQA monitors <br />(one monitor per dozer when dozers aze greater than 50 feet apart) observed DCF placement and <br />verified minimum thickness of 2 feet for finish grade, and 4 feet for haul traffic (i.e., Caterpillaz <br />Mode1740 articulated trucks). <br />Golder observed placement of HVSC piping in the Phase IVc OSA, verifying installation and layout <br />per the prof ect plans. <br />Laboratory Tests <br />Golder obtained one QA sample of soil liner fill (SLFc-QA-21) and one QA sample of drain cover <br />fill (DCFc-QA-8) for laboratory index testing. The completed tests met the requirements of the <br />specifications and the results aze presented in Attachment B. <br />Meetings <br />CC&V held a Weekly Contractors' meeting on September 8, 2004. Items discussed included Safety, <br />Environmental, Schedule, QC documentation, and CQA. The next weekly meeting will be held on <br />September 14, 2004 at 10:00 AM. <br />Golder Personnel On-Site <br />A summary of all Golder CQA personnel on site during this reporting period is presented in <br />Attachment A. <br />Sincerely, <br />"~ ~-•-""--~ 1 <br />6~ir ~~~ ~1~~~~ <br />RonDiDonato -~~L/ <br />Project Resident <br />Pharr Nc 185cptcmbcr OS-Scpranbcrll 2006 Golder Associates lnc. <br />