ARCHIVED REPORTS_2008_27 - Laserfiche WebLink

Home Browse Search

WMU FU-08 October 2008 Forward Landfill Project No.021605.08 Field Panel Identification: Prior to geomembrane deployment, Vector's CQA Monitor and GSE discussed and agreed to the identification code for each panel deployed. During the deployment, Vector's CQA 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, Vector's CQA Monitor kept panel deployment logs. These logs recorded the location (panel number and roll number), installation schedule (date and time), weather conditions (temperature and wind), and thickness of the sheet. Designation of double sided textured geomembrane was assigned a prefix of"D" and the single sided geomembrane was assigned a prefix of "S". These panel deployment logs are presented within Appendix I. 5.3.2.2 Field Seamin Seam Layout: Vector's CQA Monitor documented that the seam numbering system is compatible with the panel numbering system. A seam numbering system was assigned by using both panel numbers separated with a dash (i.e.: D-3/S-4 is the seam of double-textured panel 3 and single-textured panel 4). Seaming Equipment and Products: Vector's CQA Monitor observed that the seaming equipment used by the subcontractor was in accordance with the project specifications. In addition, Vector 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 crews 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. Vector Engineering, Inc. • 143E Spring Hill Drive• Grass Valley, CA 95945•(530)272-2448 -26-