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Field Exploratory Boring Log SB-4 <br /> 7 <br /> VM Blows/ Sample Well Depth Soil Group Materials Description <br /> M 6 Number Construction (ft) (USCS) <br /> Asphalt&Base rock 0 to 0 5' <br /> Silt (ML) <br /> Olive Brown(2 5Y 414), moist, 70%silt, 10%clay, <br /> 20% fine sand <br /> 5 <br /> 00 SB-4-6 @ 5' as above, moist <br /> 10 <br /> 00 SB-4-11 @ 10' as above, moist, 60%silt, 35%clay, 5% fine sand <br /> 00 SB 1-16 15 @ 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 /> 00 SB-4-21 10% fine sand <br /> 25 @ 25' as above, moist, olive gray(5Y 4/2), 70%clay, 30%silt <br /> 30 SB-4-26 <br /> 60 SB-4-31 30 @ 30' as above, moist Total depth of boring=31 ft <br /> BORING SHELL OIL PRODUCTS COMPANY Borehole Diameter 2 inches • <br /> Shell Service Station Logged by J Neely envrros® <br /> SB-4 1267 Country Club Boulevard Driller Gregg Dnlling 97407 <br /> Stockton, California Date Started 4-Apr-97 <br /> Date Completed 4-Apr-97 <br />