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2011-08-26_REPORT - M1980244 (28)
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2011-08-26_REPORT - M1980244 (28)
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Last modified
8/24/2016 4:42:42 PM
Creation date
2/27/2014 9:38:09 AM
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Template:
DRMS Permit Index
Permit No
M1980244
IBM Index Class Name
Report
Doc Date
8/26/2011
Doc Name
Final Report QA 2011 Phase 5 VLF Ore Storage Aug 26, 2011 vol 1 of 3
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CC&V
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DRMS
Media Type
D
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ameO <br />that sufficient overlap for seaming existed. AMEC logged insufficient panel overlaps as <br />defects and marked them for correction. <br />Ames surveyed all panel intersections and destructive seam sample locations. Using these <br />points, AMEC has provided the primary geomembrane panel layout record drawing (Record <br />Drawing No. 4), in Appendix A. <br />The 2011 Phase 5 VLF OSA 2nd Portion LLDPE primary geomembrane deployment <br />observations are presented in Appendix J -1. <br />6.3 Seaming <br />The double wedge fusion weld was the principal seaming method employed by Lone Star <br />for this project. Lone Star fusion seamed (welded) geomembrane on the same day that it <br />was deployed. Lone Star used extrusion welds for seaming where the 2011 Phase 5 VLF <br />OSA 2nd Portion 80 -mil LLDPE primary geomembrane was tied into the Phase 5 PSSA <br />LLDPE primary geomembrane, for repairs, and where conditions were unfavorable for <br />fusion welding (e.g., sharp corners). AMEC observed trial seam tests, monitored seaming <br />equipment temperatures and speed, and provided visual observation of the seaming <br />procedures. AMEC observed the entire lengths of all seams, patches, and other repairs <br />either during seaming, or shortly after completion. <br />6.3.1 Trial Seam Monitoring <br />Lone Star performed trial seams to monitor the performance of the seaming apparatus and <br />operator under actual site conditions. Each welding operator and his apparatus produced <br />trial seams prior to the beginning of each day's seaming operation, after all work activity <br />stoppages, and in the event that devices were disconnected from power and re- energized. <br />Lone Star cut 1 -inch wide samples (coupons) from each trial seam and tested the coupons <br />with a field tensiometer. Lone Star tested each double wedge fusion trial seam twice for <br />peel adhesion (peel) and once for bonded seam strength (shear). Lone Star conducted peel <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 30 <br />
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