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PROJECT NAME: StOCI:tOn Service Station BORING r: SB2 <br /> f� PROJECT t: 16196 DATE DRILLED: 12/14/87 <br /> EXCELTECH EXPLORATORY BORING LOG LOGGED BY: S C <br /> ZCr <br /> _E O O <br /> 0 UAO a ni o o 0 <br /> _ m <br /> T L6 E J O LL SOIL.DESCRIPTION <br /> LU <br /> I.- d3 m W0� d CLE <br /> F Sp a <br /> t <br /> O N Cr #0 <br /> 1 inch asphalt cover over 10" of baserock <br /> 1 <br /> CL CLAY; very dark grayish brown (10YR 3/2), <br /> 2 rare medium to coarse sand, damp, low plas- <br /> tic <br /> 3 <br /> ? @ 3.5' 5% medium to coarse sand <br /> 4 <br /> CL SILTY CLAY: yellowish brown (10YR 5/4 ), <br /> 5 trace of fine sand, abundant micro burrows, <br /> trace of decomposed organic matter, locally <br /> 6 M- stained olive gray .(5Y 4)2) <br /> M11 SANDY SILT to SILTY SAND; light olive brown <br /> 7 (2.5Y 5/4) , 50-W silt, 50% fine sand, white <br /> tT oxidized root remains, abundant micro bur- <br /> 8 - <br /> rows, rare medium to coarse sand, very soft <br /> very loose, moderate to strong product odor, <br /> 9 crumbled soil yields sheen in water <br /> 10 SM SILTY SAND; light yellowish brown (2,5Y 6/4) , <br /> 25% silt, 75% fine sand-2" section had thin <br /> li -( 1-2mm) laminae -parallel .white oxidized <br /> layers, breaks easily on layers of white, <br /> 12 few micro burrows, visable product when <br /> placed in water, very loose, damp, moderate <br /> 13 to strong product odor. <br /> A4 <br /> 15 2- <br /> CL SILTY CLAY; olive gray (5Y 5/2), white axi- <br /> 16 di zed root holes locally common, few micro <br /> burrows, medium to strong product odor, <br /> firm, moist, sheen when placed in water <br /> Bottom of boring at 15,5 feet <br />