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<br />fi <br /> <br /> <br />Earth Engineering Consultants Inc. <br />Summaryof Laboratory Sieve Analysis <br />U.S. Standard Sieve Openings in Inches U.S. Standard Sieve Numbers Hydrometer <br />2.5" 1.5" 3/4" 3/8" No 8 No 30 No 50 No 200 <br />2" All 1/2" No 4 No 16 No 40 No 100 <br />100% <br /> <br />90% <br />m <br />80% <br /> <br /> <br />70% <br />(D <br />c <br />LL <br />60% <br />c <br />a) <br />U <br />a 50% <br />% <br />40 <br /> <br />30% <br /> <br />20% <br /> <br />10% <br /> <br />0% <br />10 1 0.1 0.01 0.001 <br />Grain Size in Millimeters <br />Gravel Sand Silt or Cla <br /> <br />Coarse Fine <br />Coarse Medium Fine y <br />Project: Turnpike Reservoir <br />Location: Erie, Colorado <br />EEC Project Number: 1082030 <br />Date: April 2008 <br />Sample Number: B-4, S-2, 9-ft. <br />EEG <br />a