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TABLE 3-4 <br /> Clay Plug and Clay Earthfill Material Acceptance Testing <br /> Criteria/Specification <br /> Frequency <br /> Test ASTM Method <br /> Density and Water Content Nuclear Gage D2922 250 cy Min.90%relative compaction at 3 <br /> to 6%over optimum water content' <br /> Water Content Oven D2216(with cor. 250 cy 3 to 6%over optimum water content <br /> To Nuclear gage D2922) <br /> Atterberg Limits D4318 250 cy Classified as CL,CH,or SC <br /> Compaction Curves Modified Proctor D 1557 As needed N/A <br /> Clod Size Observation Continuous <l inch <br /> 'ASTM D-1557 Modified Proctor. <br /> Page 16 <br />