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Field Exploratory Boring Log SB-4 <br /> OVM Blows/ Sample Well Depth Soil Group <br /> PM 6" Number Construction (ft) (USCS) Materials Description <br /> Asphalt&Base rock 0 to 0 5' <br /> Silty Sand(SM) <br /> Very dark gray (5Y 3/1), moist, 60%fine sand, <br /> 40% silt <br /> SB-4-3 <br /> 5 @ 5' As above,moist <br /> fl-t <br /> Clay(CL) <br /> Very dark brown(10YR 212), low plasticity,moist, 70%clay, <br /> 00 SB-4-8 5 15% silt, 15% fine sand <br /> l0 — <br /> Silt(ML) <br /> Dark yellowish brown(IOYR 414), moist,70% clay, <br /> 15% silt, 159? fine sand <br /> 18 SB-4-13 <br /> 15 @ 14' as above,dry to moist, soil is brittle and friable <br /> 72 SB-4-17 <br /> Silty Sand(SM) <br /> Dark yellowish brown(10 YR 414),moist, 75% fine sand, <br /> 25% silt <br /> 20- <br /> 164 SB-4-21 @ 2l' As above,moist <br /> 225 SB-4-25 25 @ 25' As above,moist <br /> 14 S13-4-275 <br /> @ 29' As above,moist <br /> 30 <br /> BORING SHELL OIL PRODUCTS COMPANY Borehole Diameter 1 51nches • <br /> Shell Service Station Logged by ! Neely envtros® <br /> SB-4 4315 Waterloo Road Driller Gregg Drilling 96372 <br /> Stockton, California Date Started 21-Feb-96 <br /> Date Completed 21-Feb-96 <br />