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THE <br /> TW-111 <br /> HING LOG OF SOIL BORING <br /> LABORATORIES. INC. BORING B-2 <br /> Project: Frontier Transportation Project Number: B23502.01 <br /> Location: 425 Larch Road, Tracy, CA Date Started: August 15, 1996 <br /> Logged By: Patricia Jones Date Completed: August 15, 1996 <br /> ' Drilled By: Leo Praet Drill Type: CME-75 <br /> Auger Type: NSA <br /> ' Depth to Groundwater: 10.5 feet Elevation: <br /> DEPTH SOIL SYMBOLS <br /> Cf t) <br /> SAMPLER SYMBOLS USM Soli description slowsper Ramarim <br /> AND FIELD TEST BATA foot <br /> 0 <br /> Concrete Pavement <br /> ........... ..................................................... <br /> CL CLAY, sandy; very dark gray <br /> (2.5Y, 3/1), slightly plastic <br /> to plastic, 30% very fine to <br /> fine sand, trace mica, <br /> slightly moist, petroleum <br /> ' $ 4/6 SC type odor P[13: 138 ppm <br /> 4/6 Color changes to dark gray <br /> 5/6brown..(2.SY,..4/Z).............. <br /> CL SAND, clayey; gray (2.5Y, 5/1) <br /> very fine to fine grained, <br /> 3/6 subangular, 20% fines, trace Na PID <br /> 5/6 -mica, moist, slight petroleum <br /> 10 readin <br /> e odor g <br /> t0 5/6 P........ ..................................... <br /> rz 2%6 CLAY, sandy; dark ray (2.5Y, s PID: 312 ppm <br /> 3/6 SC . 1/2), plastic, 30-4 90 very <br /> fine to fine sand, no mica, <br /> ,.moist, petroleum type odor <br /> ,very moist <br /> SAND, clayey; dark gray (2.5Y, <br /> 15 4/2), very fine to fine <br /> grained, 30-40% plastic fines, <br /> wet, Detroleum a odor <br /> Bottom of Boring <br /> 20 <br /> 125 <br /> I <br /> i <br /> ' 30 <br /> Notes: Boring was backfilled with Portland cement concrete to within f <br /> foot of grade. The remainder of the boring was filled with cement. <br />