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Ad% <br />amel& <br />• <br />• AMEC visually monitored the placement of Drain Cover Fill (DCF) above <br />the primary geomembrane in the PSSA, including verification of lift <br />thickness and grade control, identification and removal of deleterious <br />materials, and verification that care was exercised in fill placement to <br />avoid geomembrane damage. AMEC performed CQA laboratory testing <br />of grain size and Atterberg limits. <br />• AMEC visually monitored the placement of Select Drain Cover Fill <br />(SDCF) around the risers in the PSSA, including verification of lift <br />thickness, extents of placement, grade control, identification of <br />deleterious materials, and verification that care was exercised in fill <br />placement to avoid geomembrane and riser damage. AMEC performed <br />CQA laboratory testing of grain size and Atterberg limits. <br />• AMEC monitored the installation of High Volume Solution Collection <br />System (HVSCS) piping and High Volume Solution Collection Riser Base <br />Plates. AMEC visually verified that pipes were installed to the lines and <br />grades shown on the plans, and that the riser base plates were installed <br />per the plans. <br />• AMEC monitored the ambient air temperatures and the temperatures of <br />all fills, including SLF, in accordance with project specifications. The <br />ambient air and fill temperatures monitored during fill activities can be <br />found in Table 3. <br />• Bedding Fill (BF) was not required during the construction of the 2010 <br />Phase 5 VLF. <br />1.2.2 CQA/CQC Monitoring of Geosynthetics Installation <br />AMEC provided CQA monitoring of geosynthetics used for the 2010 Phase 5 VLF. CQA <br />services provided by AMEC consisted of performing geosynthetics inventory and checking <br />quality control certifications prior to geosynthetics deployment. AMEC performed <br />geosynthetics CQA activities in accordance with the CQA Plan. Geosynthetics CQA <br />activities performed by AMEC included: <br />• Observation and documentation of geomembrane deployment, trial <br />seams, seaming, destructive testing, and non-destructive testing <br />(pressure tests and vacuum tests); <br />• Performing conformance testing of geomembrane and geogrid; <br />w <br />AMEC Earth & Environmental, Inc. <br />2000 S. Colorado Blvd 2-1000 <br />Denver, CO 80222 <br />Tel 303-935-6505 <br />Fax 303-935-6575 www.amec.com <br />4