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I to the specification. Golder observed deployment of geomembrane documenting ambient air <br />temperature, panel dimensions, seaming, tie-in overlap, seam testing (trial seams, pressure, vacuum, <br />and destructive) and conducted the final walk-through. Geomembrane placed at the LOB met <br />I ~ specifications. Golder provided full time observation of DCF placement over the deployed LLDPE. <br />Golder verified DCF placement for material, placement technique, wrinkles, and thickness. DCF <br />placed met specifications. <br />Golder observed and documented confirmation drilling activities associated with the Phase IV <br />construction. Full time monitoring was given to confirmation drilling of underground workings <br />including logging holes, mazking drill locations, surveying holes, and documenting underground <br />workings encountered. <br />Golder observed placement of CP and CR. These materials were placed in accordance with the <br />drawings and specifications into excavated or open underground workings. Materials supplied met <br />specifications. Ground.Engineering conducted field testing and sampling of.CP concrete as per <br />specifications, and will supply 28-day strength results. <br />Golder observed and documented excavation and remediation activities associated with the Phase IV <br />underground working construction. Full time monitoring was given to excavation of underground <br />workings. <br />Golder observed placement of geogrid in Phase IVa/b/c. Geogrid was placed in accordance with the <br />drawings and specifications over the designated area. <br />Laboratory Test Results <br />No laboratory testing was conducted. <br />Meetines <br />CC&V held Weekly Contractors meetings on April 23`d and May 30a'. Items discussed include <br />Safety, Environmental, Schedule, and CQA. The next weeldy meeting wi71 be held on Apri] 7a', <br />2002 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 C. <br />Sincerely, <br />Bob Nichols <br />Resident CQA Monitor <br />• rna..rvesznPdrz~-maya.aoc Golder Associateslnc. <br />