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<br />iv <br />Earth. Engineering Consultants Inc. <br />Summary of 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 />100% 2" 1" 1/2" No 4 No 16 No 40 No 100 <br /> <br />90% <br /> <br />rn 80% <br /> <br />70% <br /> <br />a? <br />c <br />60% <br /> <br />c <br />a? <br />2 <br />50% <br />a <br />40% <br /> <br />30% <br /> <br />20% <br /> <br />10% <br /> <br />0% <br /> <br />10 1 0.1 0.01 0.001 <br />Grain Size in Millimeters <br />Gravel Sand <br /> <br />Coarse Fine <br />Coarse Medium Fine Silt or Clay <br />Project: Turnpike Reservoir <br />Location: Erie, Colorado <br />EEC Project Number: 1082030 <br />Date: April 2008 <br />Sample Number: B-3, S-3,14-ft. <br />EEC