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Upper Northern Portion of WMU FU-08 September 2009 <br /> Forward Landfill Project No.021605.09 <br /> ® Field Panel Placement <br /> During the panel placement, Vector's CA Monitor kept panel deployment logs. <br /> These logs recorded the location (panel number and roll number), installation <br /> schedule (date and time), weather conditions (temperature and wind), and thickness <br /> of the sheet. These panel deployment logs are presented within Appendix C. <br /> 4.2.3.2 Field Seaming <br /> ® Seam Layout <br /> Vector's CQA Monitor documented that the seam numbering system is compatible <br /> with the panel numbering system. A seam numbering system was assigned by <br /> using both panel numbers separated with a dash (i.e.: as in 3/4 is the seam of panel <br /> 3 and panel 4) <br /> ® Seaming Equipment and Products <br /> Vector's CQA Monitor observed that the seaming equipment used by the <br /> subcontractor was in accordance with the project specifications. In addition, Vector <br /> verified that the extrudate (welding rod) used was compatible with the <br /> geomembrane material and was comprised of the same resin as the geomembrane. <br /> The liner crews seamed the HDPE geomembrane panels using double wedge and <br /> extrusion welding techniques. The majority of seams were joined using double <br /> wedge welders, with difficult geometry and repairs made using extrusion welders. <br /> Vector's CQA Monitor observed the seaming activities and observed for proper panel <br /> overlap, cleanliness of the seams, grinding where required, and speed and <br /> temperatures of the equipment used. Documentation of the activities was recorded <br /> on the geomembrane seaming log, which includes information on the seam number, <br /> date, time, welding machine, technician, machine temperature, and wind condition. <br /> The geomembrane seaming logs are included in Appendix C. <br /> Vector Engineering,Inc.• 143E Spring Hill Drive•Grass Valley,CA 95945•(530)272-2448 <br /> -11- <br />