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• Record weather conditions including temperature, wind, and humidity. The VFPE shall not be deployed in the presence of excess moisture (fog, dew, mist, etc.), high winds and extreme temperatures as determined by the Geotechnical CQA Officer. • Observe that people working during the installation of VFPE do not smoke, wear shoes, or engage in activities that could damage the VFPE. • Observe that the method used to deploy the panel minimizes wrinkles and that the panels are anchored to prevent movement by the wind. • Observe that direct contact with the VFPE is minimized; (i.e., the VFPE is protected by geotextiles, extra VFPE, or other suitable materials, in areas where excessive traffic may be expected). The Geotechnical CQA Monitors shall inform the Contractor, the Liner Subcontractor and the Construction Manager if the above conditions are not met. After placement and prior to seaming, the Geotechnical CQA Monitors shall inspect'°each panel for damage. The Geotechnical CQA Monitors shall°advise°the Construction Manager which panels, or portions of panels, should be rejected, repaired, or accepted. Damaged panels or portions of damaged panels that have been rejected shall be marked and their removal from the work area recorded by the Geotechnical CQA Monitors. 6.2.4.3 Field Seaming The Contractor shall provide'the Construction Manager and Geotechnical CQA Officer with a seam and panel layout plan and shall update this plan daily as the job proceeds. No panels --shall be seamed until the panel layout plan°has-been approved by the Construction Manager. A seam numbering system shall be agreed to icy the Geotechnical-CQA-Monitors, Construction Manager, Contractor and Liner Subcontractor prior to the start of seaming operations. Prior to seaming, each seaming apparatus (welder) shall be tested in accordance with the Specifications to determine if the equipment is functioningnproperly. The Geotechnical CQA Monitors shall observe all trial weld operations and record the results. It is important that the trial welds be completed under conditions similar to those under which the panels will be seamed. If at any time the Geotechnical CQA Monitor believes that an operator or seaming apparatus is not functioning properly, a test shall be performed on a trial weld. If there are large changes in temperature, humidity, or wind speed, the trial weld test shall be repeated. Laboratory tests may be carried out at the discretion of the Geotechnical CQA Monitors to verify field test results. During seaming operations the Geotechnical CQA Monitors shall observe that: • The Liner Subcontractor has the number of welders and spare parts agreed to in the pre -construction meeting. -22- CA2001-048TINAL COVER CQA.DOC\08/20/01 Geologic Associates