Laserfiche WebLink
Cripple Creek & Victor Gold Mining Company <br />Cresson Project <br />Quality Assurance Monitoring and Test Results ame <br />(01 Liner Recertification <br />December 17, 2009 <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 3 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 Solis Testing <br />AMEC performed appropriate laboratory testing of soils during construction commensurate with <br />the CQA Plan. Knight Piesold's soils laboratory in Denver, Colorado performed permeability <br />testing of the SLF material. All other testing was performed on -site. To verify that the earth <br />materials used during construction met project specifications, AMEC completed the following <br />tests in 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 />S: \PROJECTS \1125E CCV CQA \H2 - DESIGN\LINER RECERTIFICATION REPORT\REPORT BODY\QA MONTIORING AND TEST RESULTS LINER <br />RECERTIFICATION.DOC <br />