Laserfiche WebLink
Foothill Sanitary Landfill — Module 1 December 2003 <br />County of San Joaquin Job No 031602 00 02 <br />5.3.1.2 CQA Conformance Testing <br />Select samples of the HDPE were cut from random rolls of the geomembrane at the <br />manufacturing plant by Precision for conformance testing in accordance with the project <br />specifications and CQA manual. Conformance testing included the following: <br />• density (ASTM D-1505) <br />• carbon black content (AST -1603) <br />• thickness (ASTM D-5994) <br />• tensile properties (ASTM -638) <br />• asperity height (GRI GM -1) <br />Ten (10) 60 -mil HDPE geomembrane samples were tested for conformance. Based on <br />1,670,000 ft2 of HDPE received, this testing frequency corresponds to one test per <br />167,000 ft2 ,which satisfies the requirement of one test per 250,000 square feet (ft2). <br />Results of the conformance testing indicated that the materials met the requirements of <br />the project specifications. A summary of the conformance test results are included in <br />Table 5. Detailed test results are provided within Appendix J. <br />5.3.2 Geomembrane Installation <br />5.3.2.1 Earthwork <br />• Surface Preparation <br />Prior to installation of the HDPE, Vector's CQA Monitor inspected that the GCL has <br />been installed as specified by the Technical Specifications and that there were no <br />changes to the surface conditions that would require repair work. <br />Vector Engineering, Inc. • 143E Spring Hill Drive • Grass Valley, CA 95945 - (530) 272-2448 <br />26 <br />