2004-10-18_REVISION - M1980244 (25)

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• r 1 LJ • October 2004 -17- 4.0 EARTHWORK CQA TESTING AND MONITORING 043-2170 The following sections summarize results of the earthwork CQA testing and monitoring performed by Golder for the Phase Nc OSA. Golder conducted CQA testing of earth materials used for construction. Golder performed CQA testing of in-place materials used for construction of the Phase Nc OSA. Table 4 presents specified and observed CQA testing frequencies. Figure 1 shows the site plan and coordinate system used to locate tests. In accordance with the Golder CQA Plan, when a Golder monitor observed deficiencies, the monitor determined the nature and extent of the problem and notified Ames and/or CC&V. When unsatisfactory test results identified a deficiency, Golder performed additional tests to define the extent of the deficient azea. Ames corrected deficiencies to meet the requirements of the specifications, and Golder retested and/or approved the corrected deficiency prior to any additional related work. The following sections include discussions of the deficiencies encountered. 4.1 Results of Laboratory Soils Testing Golder performed laboratory testing of soils during all aspects of the Phase Nc OSA construction. Golder's soils laboratory in Lakewood, Colorado performed permeability and bulk specific gravity testing of SLF. All other testing was performed on-site. To verify that the earth materials used during construction met project specifications, Golder performed the following American Society for Testing and Materials (ASTM) tests: • Rock corrected density values (ASTM D4718); • Grain size distribution (ASTM D1140 for material finer than the No. 200 sieve, and ASTM C 117 and C 136 for coarse material); • Moisture content (ASTM D2216); • Atterberg limits (ASTM D4318); • Standazd Proctor compaction (ASTM D698); • Permeability (ASTM D5084, Method D); • In-place density testing (ASTM D2922); u~a~snow~oo~cm~neerv~-ioona~nm.woo.~x~sscmenrv..e: Golder Associates