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11.5.8 Fill placement may be tested by conducting at least one in- <br />place density test in accordance with ASTM D 2922 and <br />ASTM D 2167 for each 10,000 square-feet of lift, or <br />whenever, in the opinion of the Engineers, additional testing <br />may be necessary. <br />11,5.9 A minimum of one direct water content test (ASTM D 2216) <br />and one direct soil density test (ASTM D 1556) shall be made <br />for each 15 indirect (nuclear) water content and soil density <br />tests, at the discretion of the engineer. <br />O:\7333.75C\2003 update\SPECS\SPEG_A.doc <br />SPEC. A -EARTHWORK <br />PAGE 21 <br />