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Phase [Vb Weekly Summary No. l4 Page 3 003-?203 <br />Golder observed and documented remediation activities associated with the Phase IV underground <br />working construction. <br />Golder observed anchor trench excavation in the Phase IVb PSSA for proper location and dimension <br />(2' wide by 3' deep). Anchor trench excavation met or exceeded the requirements of the <br />specifications. Golder observed anchor trench backfill in the Phase IVb PSSA for lift thickness and <br />proper method of compaction. <br />Golder observed construction of the Primary Underdrain in Phase IVb for trench dimension (5' wide <br />by 3' deep), slope (minimum 1%), materials, and geotextile overlap. <br />Golder observed geomembrane deployment, documenting ambient air temperature, panel <br />dimensions, thickness, seaming, tie-in overlap, and seam testing (trial seams, pressure, vacuum, and <br />destructive). Geomembrane placed in the Phase IVb azea met the project specifications. <br />Golder visually observed the placement of LVSCP in the Phase IVb PSSA area. Golder CQA <br />monitors (one monitor per dozer when dozers are greater than 50 ft apart) observed LVSCF <br />placement. <br />Laboratory Tests <br />Golder did not obtain any QA samples; however, laboratory testing of QC samples was conducted to <br />• corm suitability of materials used during this reporting period. <br />Meetines <br />CC&V held a Weekly Contractors meeting on April 22. Items discussed included Safety, <br />Envirottmental, Schedule, and CQA. The next weekly meeting will be held on April 29, 2003 at <br />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 />Ron DiDonato <br />Resident CQA Monitor <br /> <br />Phase iVb l6 AOQO-Ap26.?003 Golder Associates lnc. <br />