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THE <br /> TWHING LOG OF SOIL BORING <br /> LABORATORIES INC. BORING B-4 <br /> Protect: Frontier Transportation Project Number. 623502 .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: HSA <br /> Depth to Groundwater. 10 .5 feet Elevation: <br /> DEPTH 90IL SyM80L6 <br /> (feel) SAFIPLER SrMB015 UScs Soll Description 810v per <br /> AND FIELD TEST OA7A p foot Remarim <br /> 0 <br /> . . . .. . .. . . . . . Asphaltic —concrete Pavement <br /> CL . .. . . . .. . . . .. . .. .. .. . . .. . .. . . . ... . <br /> 70 CLAY, sand yy; very dark gray <br /> (2.5Y, 3/ 1 ), plastic, 30% <br /> very fine to fine grained <br /> Sc . sand, trace mica, 31ighfl <br /> ';moist, no petroleum_ type odor <br /> 5 SAND, clayyey; gray brown <br /> (( 2.5y, 5 2) , very fine to PID: 23 ppm <br /> Ilne rained, subangular, 30% <br /> slightly plastic fines, no <br /> mica, moist, no odor <br /> Sarre, very fine grained, 40% <br /> 10 clay <br /> . . . . . . .. . . . . . . . . .. . . . .. .. . ... . . ... . .. ... .. .. . . .. ... . . . .. PID: 196 ppm <br /> CL CLAY, sandy; gro bro. . wn (2.5Y, <br /> 5/2) , plasfic, 30 very fine <br /> grained sand, moist to very <br /> . j moist, petroleum h'p a odor <br /> Some, <br /> gray (2.SY, 5/ 1 ), - PID: 906 ppm <br /> slightly plastic to plastic, <br /> 15 40% very fine sand,. wet, <br /> etroleum type odor <br /> Bottom of Boring . <br /> i <br /> 20 <br /> 25 <br /> 30 <br /> Notes: Boring was backfilled with ,Portland cement concrete to within 1 foot <br /> of grade. The remainder of the boring was filled with concrete, <br />