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3.3 INSTALLATION A. Deployment. 1. Give careful consideration to the timing and temperature during deployment. The GEOSYNTHETICS CONTRACTOR shall verify that (a) there is no bridging or stresses in the geomembrane and (b) there are no wrinkles in the geomembrane that will fold over when covering with soil material. Ideally, deployment,welding,and covering should all occur at the same temperature. In a practical sense the GEOSYNTHETICS CONTRACTOR should strive to perform these activities within as narrow a temperature range as practical, and avoid these activities during peak hot or cold conditions. 2. Panel Identification: Assign each panel an identifying code number of letter consistent with the GEOSYNTHETICS CONTRACTOR's submitted panel layout drawing. The coding is subject to approval by the QA/QC CONSULTANT. 3. Daily Panel Deployment: Deploy no more panels in one shift than can be welded or secured during that same shift. 4. Do not deploy in the presence of excessive moisture,fog,dew,precipitation, ponded water, or high winds. 5. Do not damage geomembrane by handling, by trafficking, or leakage of hydrocarbons or any other means. 6. Do not wear damaging shoes or engage in activities that could damage the geomembrane. 7. Unroll geomembrane panels using methods that will not damage, stretch or crimp geomembrane. Protect underlying surface from damage. 8. Use methods that minimize wrinkles and differential wrinkles between adjacent panels. 9. Remove wrinkled or folded material. 10. Place ballast on geomembrane that prevents uplift from wind. 11. Use ballast that will not damage geomembrane. 12. Protect geomembrane in area of heavy traffic by placing protective cover which is compatible with and will not damage geomembrane. 13. Repair damage to subgrade or other underlying materials prior to completing deployment of geomembrane. 14. Do not allow any vehicular traffic directly on geomembrane. 15. Visually inspect geomembrane for imperfections. Mark faulty or suspect areas for repair. 16. Install material to account for shrinkage and contraction while avoiding wrinkles. Install material stress-free with no bridging before it is covered. Add material as needed to avoid bridging. 17. Before wrinkles fold over, attempt to push them out. For wrinkles that cannot be pushed out, cut them out and repair cuts prior to burial or at the direction of the QA/QC CONSULTANT. 18. Use slip sheet when deploying textured geomembrane over geotextiles to avoid damaging geotextile fibers. 19. Single-sided 60-mil textured HDPE geomembrane shall be installed in continuous contact with the underlying material and with the textured side facing down. Forward Landfill WMU FU-04 HIGH DENSITY POLYETHYLENE 02778 13 (HDPE) GEOMEMBRANE