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WMU FU-08 October 2008 Forward Landfill Project No.021605.08 3.0 CONSTRUCTION QUALITY ASSURANCE PROGRAM 3.1 Construction Components Vector provided CQA services on both earthworks and geosynthetic components of the WMU FU-08 construction. The earthwork tasks included excavation, general earthfill and subgrade fill, LPSL (low permeability soil liner) placement, granular drainage materials installation, and protective operations layer placement. The geosynthetics tasks included installing the GCL, high-density polyethylene (HDPE) geomembrane, geocomposite, and geotextile. 3.2 CQA Documentation CQA documentation was prepared by Vector as part of the prescribed CQA duties and consisted of a system of daily record keeping including daily progress reports and a record of various test data sheets pertinent to the soils and geosynthetic components of the liner system. Tables 1 and 2, included in this report summarize the soils and geosynthetics testing requirements per the CQA Manual and Technical Specifications. Within each of the tables, information on the construction material type, the total quantity of material placed on the project, the test designation to be performed, the specified testing frequency, the required number of tests to be conducted, the actual number of tests conducted, and the actual testing frequency is listed. As shown on the tables, the actual materials testing frequency on the project satisfies the number of tests required by the CQA Manual. These tables are part of Vector's internal quality control program to ensure that the testing and required testing frequencies are satisfied on the project. Other CQA documentation with respect to test data and observation sheets are discussed within the following sections. Copies and summaries of various data for the soils and geosynthetics components monitored and physically tested by Vector Vector Engineering, Inc. • 143E Spring Hill Drive•Grass Valley,CA 95945•(530)272-2448 -5-