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Cr <br />a <br />'t. <br />d <br />rn <br />a <br />A <br />�rr <br />�T <br />+I— <br />to <br />UMF1ED SOIL CLASSIFICATION <br />I C08BLES { GRAVEL I SAND I SILT AND CLAY <br />".K Co..It -too." I n »t <br />US. STANDARD SIEVE SIZES <br />6" ]•• 1�• I- �.. 31•• to 20 40 6o 140 200 <br />GRAIN SIZES IN MILLIMETERS <br />A <br />Z <br />m <br />0 <br />Page B -2 <br />U.S. STD. <br />SIEVE SIZE <br />3/811 <br />No. 4 <br />No. 8 <br />No. 10 <br />No. 16 <br />No. 30 <br />No. 40 <br />No. 50 <br />No. 100 <br />No. 200 <br />PERCENT <br />PASSING <br />100 <br />99 <br />97 <br />97 <br />96 <br />94 <br />92 <br />91 <br />89 <br />85 <br />SAMPLE DESCRIPTION <br />LOCATION <br />LL <br />PI <br />C. <br />Cc <br />MOISTURE <br />CONTENT ( %) <br />LABORATORY <br />NUMBER <br />CL -Lean clay <br />B -5 @ 10.0 -11.5 feet <br />42 <br />'21 <br />15.5 <br />1539 <br />