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0 ameO <br />4.0 EARTHWORK CQA TESTING AND MONITORING <br />The following sections summarize results of the earthwork CQA testing and monitoring <br />performed by AMEC for the 2010 Phase 5 VLF. <br />AMEC conducted CQA testing of earth materials used for construction. AMEC performed <br />CQA testing of in-place materials used for construction of the 2010 Phase 5 VLF. Table 5 <br />presents specified and observed CQA testing frequencies. Figure 1 shows the site plan and <br />coordinate system used to locate tests. <br />In accordance with the AMEC CQA Plan, when an AMEC monitor observed deficiencies, the <br />monitor determined the nature and extent of the problem and notified Ames and/or CC&V. <br />When unsatisfactory test results identified a deficiency, AMEC performed additional tests to <br />define the extent of the deficient area. Ames corrected deficiencies to meet the <br />requirements of the specifications, and AMEC retested and/or approved the corrected <br />deficiency prior to any additional related work. The following sections include discussions of <br />the deficiencies encountered. <br />4.1 Results of Laboratory Soils Testing <br />AMEC performed laboratory testing of soils during all aspects of the 2010 Phase 5 VLF <br />construction. AMEC's on-site soils laboratory at CC&V performed all of the material testing. <br />To verify that the earth materials used during construction met project specifications, AMEC <br />performed the following American Society for Testing and Materials (ASTM) tests: <br />• Rock corrected density values (ASTM D4718); <br />• Grain size distribution (ASTM D1140 for material finer than the No. 200 <br />sieve, and ASTM C117 and C136 for coarse material); <br />• Moisture content (ASTM D2216); <br />• Atterberg limits (ASTM D4318); <br />• Standard Proctor compaction (ASTM D698); <br />AMEC Earth & Environmental, Inc. <br />2000 S. Colorado Blvd 2-1000 <br />Denver, CO 80222 <br />Tel 303-935-6505 <br />Fax 303-935-6575 www.amec.com 25