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UNIFIED SOIL CLASSIFICATION <br />COBBLES GRAVEL SAMO SILT ANO CLAY <br />Coss[ "W= Itlrt <br />U S. STANDARD SIEVE SIZES <br />3 <br />0 <br />fl - <br />GRAIN SIZES IN MILLIMETERS <br />U.S. <br />STD. <br />PERCENT <br />SIEVE <br />SIZE <br />PASSING <br />111 <br />LABORATORY <br />NUMBER <br />100 <br />3/411 <br />43 <br />91 <br />1/211 <br />88 <br />3/811 <br />87 <br />No. <br />4 <br />86 <br />No. <br />8 <br />84 <br />No. <br />10 <br />83 <br />No. <br />16 <br />82 <br />No. <br />30 <br />81 <br />No. <br />40 <br />81 <br />No. <br />50 <br />80 <br />No. <br />100 <br />78 <br />No. <br />200 <br />74 <br />SAMPLE DESCRIPTION <br />LOCATION <br />LL <br />PI <br />Cu <br />Cc <br />MOISTURE <br />CONTENT (%) <br />LABORATORY <br />NUMBER <br />CL -Lean clay <br />B-6 @ 16.0-17.5 feet <br />43 <br />20 <br />17.9 <br />1539 <br />