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tip <br />Cr <br />a <br />w� <br />Cr <br />a <br />19 <br />2 <br />1 <br />A � <br />n <br />Ic <br />UNIFIED SOIL CLASSIFICATION <br />COl1RLE1 GRAVEL SAND SILT AND CLAY <br />CON 1[ /IM( (OAA1[ wo i 71.4 <br />US. STANDARD SIEVE SIZES <br />GRAIN SIZES IN MILLIMETERS <br />0 <br />10 <br />zo <br />30 <br />b <br />n <br />40 rl <br />H <br />50 <br />60 IZ.1 <br />v <br />TO <br />so <br />90 <br />l <br />>I 00 <br />Page B -30 of 62 <br />U.S. STD. <br />SIEVE SIZE <br />3/4'1 <br />1/211 <br />3/811 <br />No. 4 <br />No. 8 <br />No. 10 <br />No. 16 <br />No. 30 <br />No. 40 <br />N0. 50 <br />No. 100 <br />No. 200 <br />PERCENT <br />PASSING <br />100 <br />98 <br />98 <br />96 <br />94 <br />93 <br />9p1 <br />88 <br />86 <br />83 <br />75 <br />68 <br />SAMPLE DESCRIPTION <br />LOCATION <br />LL <br />PI <br />C. <br />Cr <br />MOISTURE <br />CONTENT ( %) <br />LABORATORY <br />NUMBER <br />CL -lean clay <br />B -6 @ 13.5 -15.0 feet <br />40 <br />21 <br />19.6 <br />1539 <br />