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WMU FU-08 October 2008 Forward Landfill Project No.021605.08 Vector's CQA Monitor observed the seaming activities and observed for proper panel overlap, cleanliness of the seams, grinding where required, and speed and temperatures of the equipment used. Documentation of the activities was recorded on the geomembrane seaming log, which includes information on the seam number, date, time, welding machine, technician, machine temperature, and wind condition. The geomembrane seaming logs are included in Appendix I. Seam Preparation: Vector's CQA Monitor observed that the preparation of the seams was in conformance with the project specifications and the seam area was clean and free of moisture, debris and foreign materials prior to seaming. Weather Conditions for Seaming: Vector's CQA Monitor observed and documented that the weather conditions for seaming were within the project specifications and manufacturer's guidelines. Trial Seams: Prior to seaming activities at the beginning of each day, and at a minimum once during the middle of the shift, a trial seam (start-up trial weld) was prepared for each of the wedge and extrusion welders used for that shift. The seaming technicians prepared a test specimen and marked the sample with the machine number, machine temperature, date, time, and operator name. The shear and peel tests were performed in the field in accordance with ASTM D- 6392. If the start-up weld sample failed to meet the project specifications, the welding technician and supervisor were notified and advised to take corrective action or put that machine out of service. The CQA monitor documented the trial welds, which included the date, time, temperature, machine number, technician, and results of the shear and peel testing. The geomembrane start-up trial weld logs are presented in Appendix I. Vector Engineering, Inc. • 143E Spring Hill Drive•Grass Valley, CA 95945•(530)272-2448 -27-