2010-11-15_REVISION - M1980244 (181)

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ameCI9 • 3.3 2010 OSA Liner System Geomembrane installation activities for the 2010 Phase 5 OSA liner system included deployment, seaming, and non-destructive and destructive testing of 80-mil single-sided textured LLDPE geomembrane(textured side down). Lone Star deployed geomembrane panels as follows: • 80-mil single-sided textured LLDPE geomembrane (textured side down) panels P-1 through P-120 as part of the primary liner (approximately 190,467 square feet); Geomembrane was placed on compacted and approved SLF as part of the 2010 Phase 5 OSA. Record Drawing No. 5 in Appendix A presents the 2010 Phase 5 VLF geomembrane panel layout for the primary geomembrane layer. Ames anchored geomembrane at the limits of the Phase 5 PSSA in an anchor trench a minimum of 3 feet deep by 1 foot wide. The 80-mil LLDPE geomembrane tie-in panels overlapped the Phase 5 PSSA geomembrane panels a minimum of 3 feet and were extrusion welded, as shown in IFC • Drawing A250. 3.4 PSSA Liner System Geomembrane installation activities for the PSSA liner system included deployment, seaming, and non-destructive and destructive testing of 100-mil single-sided textured LLDPE geomembrane, 100-mil double-sided textured LLDPE geomembrane, and 100-mil smooth LLDPE geomembrane. Lone Star deployed geomembrane panels as follows: • 100-mil single-sided textured LLDPE geomembrane (textured side down) panels S-1 through S-87, S-96 through S-287, S-330 through S-366, S-419 through S-422, S-455 through S-463, S-480 through S-497, and S-525 through S-861 as part of the secondary liner (approximately 1,385,512 square feet); • 100-mil double-sided textured LLDPE geomembrane panels S-464 through S-479 and S-498 through S-524 as part of the secondary liner (approximately 65,055 square feet); C] AMEC Earth & Environmental, Inc. 2000 S. Colorado Blvd 2-1000 Denver, CO 80222 Tel 303-935-6505 Fax 303-935-6575 www.amec.com 22