2014-08-28_REPORT - M1980244 - Laserfiche WebLink

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amec�"' A total of twenty fusion and one extrusion destructive samples were marked and tested, they include PDF -1 through PDF -20 and PDX -1. All destructive samples passed per project technical specifications. Secondary 100 -mil SSMS LLDPE Liner Installation A Cat mini excavator was used to excavate anchor trench at the northern and eastern sides PSSA slope. Depth and width were verified during excavation prior to liner installation. Ames used a Bobcat to backfill the anchor trench with structural fill material placed in a single 12 -inch lift and compacted using a vibratory plate compactor. Anchor trench was along secondary liner panel numbers S -262 through S -301. Sandbags were removed from the anchor trench prior to structural fill placement. ECA continued installing 100 -mil LLDPE SSMS geomembrane at the PSSA eastern, western, and northern slopes and on the central floor. Panels S -264 through 5 -306 were deployed throughout the week. Thirty two rolls of 100 -mil LLDPE SSMS geomembrane were deployed yielding 9,804 lineal feet of fusion welds for an approximate installed weekly total of 143,595 square feet. Quality control was performed using up to two extrusion guns. All work performed was observed by AMEC Quality Assurance (QA) personnel and was completed in accordance with project technical specifications. A total of eighteen fusion destructive samples were marked and tested, they include DF -110 through DF -128. All destruct samples tested passed per project technical specifications. C) Overliner: PSSA Ames fused three sections of 18 -inch pipe on the LVSCS, repositioned the LVSCS manifold into the LVSCS riser piping trench, and fused it to the sections of the LVSCS riser pipe. The manifold and riser pipe were placed above secondary liner and a rub sheet per design. Cat 740 trucks hauled low volume solution collection fill (LVSCF) to the PSSA. Haul roads for the trucks were maintained at least 4 feet above secondary geomembrane. Ames continued placing LVSCF on approved secondary liner in minimum 3 -foot lifts with Cat GPS D6 and D8 wide pad dozers between panels S -106 to S -109; S -127 to S -129; S -147 to S- 149; S -151 to S -153; S -157; S -187 to S -193; S -205 to S -209; S -217 to S -219, S -244 to S -247, and S -276 to S -301. See the attached LVSCF map for all placement locations. II) Storm Water Management Best Management Practices (BMPs) are being performed. CQA ACTIVITIES: Field Activities: Field activities and observation during this reporting period included: Slope grading and fill placement; underground working remediation and confirmatory drilling; nuclear moisture and density testing, depth verification testing; geomembrane deployment, testing and repair monitoring and certification; subgrade and SLF inspection and certification; and LVSCF acceptance for primary liner deployment. DCF, LVSCF, SLF sampling, and Highway 67 striping and ditch work. 2014.08.1r,MLE2 WEEKLY FINAL Page 4 of 8