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1423002.01 5/16/14 N:\PROJECTS\1423002.010.GPJ GRAIN SIZE FIGURE <br /> U.S.Sieve Opening in Inches U.S.Sieve Numbers I Hydrometer <br /> 6 4 3 2 1.5 1 °4 1/2 3/8 3 4 6 8 10 14 16 20 30 40 5060 100 140 200 <br /> 100 I I I I I I I I I I I <br /> 90 <br /> 80! <br /> 70 <br /> II <br /> L <br /> 60 <br /> .c) .allow <br /> c 50 �1 <br /> it. <br /> E' <br /> .40 <br /> 30 <br /> 20 <br /> i . <br /> 0 <br /> 100 10 m„ 0.1 0.01 0.001 <br /> 1--rain V.in Millimeters <br /> Cobbles Gravel - Sand <br /> Coarse Fine .- - V Medium Fine Sllt or Clay <br /> Symbol Exploration Sample Depth Natural Soil Description Unified Soil <br /> Number Number (ft) Moisture(o ) Classification <br /> • B-28-14 S-2 5.0 9 Very silty SAND with gravel SM <br /> ® B-29-14 S-2 5.0 11 Very silty SAND with gravel SM <br /> 777X Composite Wing Figure <br /> ilikLANDAU Fabrication Center Grain Size Distribution B-13 <br /> ASSOCIATES Everett,Washington <br />