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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. <br />AMEC conducted CQA testing of earth materials used for construction. Table 4 presents <br />specified and observed CQA testing frequencies. <br />In accordance with the AMEC CQA Plan, when a 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 requirements of <br />the specifications, and AMEC retested and /or approved the corrected deficiency prior to any <br />additional related work. The following sections include discussions of the deficiencies <br />encountered. <br />4.1 Results of Laboratory Soils Testing <br />AMEC performed appropriate laboratory testing of soils during construction commensurate with <br />the CQA Plan. Soils testing was performed on site by AMEC to verify that the earth materials <br />used during construction met project specifications, AMEC completed the following tests in <br />accordance with the American Society for Testing and Materials (ASTM): <br />■ Rock corrected density values (ASTM D4718); <br />■ Grain size distribution (ASTM D1140 for material finer than the No. 200 sieve, and <br />ASTM C117 and C136 for coarse material); <br />■ Moisture content (ASTM D2216); <br />■ Atterberg limits (ASTM D4318); <br />■ Standard Proctor compaction (ASTM D698); <br />■ Permeability (ASTM D5084, Method D); <br />■ In -place density testing (ASTM D2922); and <br />■ Soil description (ASTM D2488) <br />The laboratory test results are summarized in Table 5 and presented in Appendix E. <br />9 <br />