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4 <br /> Field Exploratory Boring Log SB-4 <br /> OVM Blows/ Sample Well Depth Soil Group <br /> Materials Description <br /> 6" Numbcr Construction (ft) (USCS) <br /> Asphalt& Base rock: 0 to 0.5'. <br /> 1 Silt(ML) <br /> Olive Brown (2.5Y 4/4), tnoist, 70% silt, 10% clay, <br /> j 20%Q fine sand. <br /> � I <br /> I <br /> 5 <br /> 0.0 SB-4-6 Cc) 5': as above,moist. <br /> I� <br /> 1 <br /> 10 <br /> 0.0 SB-4-11 @ 10': as above,moist, 60% silt, 35% clay, 5%fine sand. <br /> ' I <br /> i <br /> ]5 <br /> .0 Ss 1-16 (c? 15': as above,moist, 55% silt,40% clay, 5% fine sand. <br /> Clay (CL) <br /> 20 Olive gray (5Y 512),moist, low plasticity,60%clay, 30%silt, <br /> 0,0 SB-4-21 10% fine sand. <br /> 25 @ 25': as above, moist, olive gray (5Y 4l2),70%clay, 30%n silt. <br /> 3.0 SB-4-26 <br /> V <br /> i <br /> 6.0 SB-4-31 30 @ 30': as above, moist. Total depth of boring=31 ft. <br /> BORING SHELL OIL PRODUCT'S COMPANY Borehole Diameter: 2 inches • <br /> Shell Service Station Logged by: J. Neely enviros® <br /> SB-4 1267 Country Club Boulevard Driller: Gregg Drilling 97407 <br /> Stockton, California Date Started: 4-Apr-97 <br /> Date Completed: 4-Apr-97 <br />