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5.0 Construction Quality Assurance for Geosynthetics and HDPE Piping This section describes CQA procedures for installing geos nthetic materials as part of the Extension of Closure Cap of the CHLF. Specific geosynthetic materials to be installed include: • Geocomposite drainage layer • Linear-Low Density Polyethylene (LLDPE) geomembrane • HDPE pipe This manual stresses careful documentation during the quality assurance process, from the verification of materials through the installation. The project construction specifications establish the test frequencies for geosynthetics construction quality assurance. 5.1 Geocomposite Drain Material 5.1.1 Delivery The CQA Monitor shall verify the following: • Equipment used to unload the rolls does not damage the geocomposite. • Care is used in unloading and stacking the rolls (consistent with the Manufacturer's recommendations). • All documentation required by the specifications has been received. • The Geosynthetics Received Log is completed(Appendix A). At the CQA Monitor or County's discretion, damaged rolls may be rejected. Rejected rolls shall be removed from the site or stored at a location designated by the CQA Monitor, separate from accepted rolls. All rolls that do not have proper manufacturer's documentation shall also be stored at a set location until all documentation has been received and approved. 5.1.2 Conformance Testing After delivery, unless otherwise specified, the CQA Monitor shall obtain samples for confolmance testing. ' Sample Procedures. The sample shall be taken across the entire roll width and shall not include the first two feet. Unless otherwise specified, the sample shall be three feet long by the roll width. The CQA Monitor shall mark the machine direction, the manufacturer's roll identification number, and the date the sample was obtained on the sample. CQA Monitor shall alert the CH CQA Plan 041712 Rev2a.doc 5-1 Construction QuaW Assurance Plan