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Final Construction Quality Assurance Report - WMU FU -13 Forward Landfill • Field Panel Identification: Prior to geomembrane deployment, GLA's CCW Monitor and Comanco discussed and agreed to the identification code for each panel deployed. During the deployment, GLA's CCW Monitor observed that the installer marked the panels deployed and that each panel placed was marked with the manufacturer's roll number. Field Panel Placement: During the panel placement, GLA's CCW Monitor recorded information in the Panel Deployment Logs. These logs recorded the location, panel number, roll number, date and time. Also recorded was the ambient temperature and current weather conditions (wind speed, cloud cover, etc.), and thickness of the sheet. Designation of double -side textured geomembrane was assigned a prefix of "DST" and the single -side textured geomembrane was assigned a prefix of "SS". The SS liner deployed on the 4:1 slope consisted of 107 panels; listed on the Deployment Logs as P-1 through P-107. The DST liner on the floor consisted of 72 panels; listed as P-108 through P-179. The Deployment Logs are presented within Appendix I. 5.3.2.2 Field Seaming Seam Layout: GLA's CCW Monitor documented the seaming of the HDPE liner in the Seam/Pressure Test Logs. Seam numbers are determined by the panel numbers, i.e., seam • 21/22 is the connection between HDPE panels 21 and 22. Seaming Equipment and Products: GLA's CCW Monitor observed that the seaming equipment used by the liner installer was in accordance with the project Specifications. In addition, GLA's CCW Monitor observed that the extrudate (welding rod) used was compatible with the geomembrane material and was comprised of the same resin as the geomembrane. The liner installer, Comanco, seamed the HDPE geomembrane panels using double wedge and extrusion welding techniques. The majority of seams were joined using double wedge welders, with difficult geometry and repairs made using extrusion welders. GLA's CCW Monitor observed the seaming activities, and observed each seam for sufficient panel overlap, cleanliness, grinding where required, and the speed and the temperatures of the equipment being used. Documentation of the activities was recorded on the geomembrane Seaming Logs, which include information on the seam numbers, date, time, welding machine, welding technician, machine temperature and speed, ambient temperature and wind conditions. The geomembrane Seam/Pressure Testing Logs are included in Appendix I. 0 Seam Preparation: GLA's CCW Monitor observed that the preparation of the seams was in 23 Geo -Logic ASSOCIATES