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1EProject: California Army National Guard Log of Soil Boring: B-3 <br /> Location: Stockton CA Project Number: 18600251.02041 <br /> Dates Drilled: 03/05/08 Borehole Name: B-3 <br /> Drilling Contractor: Gregg Drilling Company Logged By: T.Gere <br /> Drilling Method: Hollow-stem Auger Cbecked By: V.Elarth,P.G.#7120 <br /> Borehole Diameter: 8-inch Total Depth: 40 feet <br /> Comments: Immediately North Northeast of concrete pad(former 20,000 gallon UST location) Sampling Method: Split Spoon <br /> W o� � O <br /> V p p6p a O <br /> ou E w a ca 'F LITHOLOGY DESCRIPTION SOIL BORING DETAILS <br /> Z <br /> 0 t Asphalt0 <br /> Silty Clay(CL) Dark grayish brown(10YR 4/2), <br /> medium plasticity,damp. <br /> 0.0/0.0 0835 <br /> ' Sand with Gravel(SW):Minor silt and clay,brown(10 <br /> YR 4/3),very fine to coarse grained,some gravel, <br /> 5 2 B3-5 0.0 0915 ;::::::;':::EyE subangular to round,low density,moist. 5 <br /> 3 Sity Clay(CL):Trace very fine sand,brown(10YR 5/3), <br /> 5 low to medium plasticity,firm,damp. <br /> 10 5 133-10 0.0/0.0 0925 10 <br /> 18 <br /> 21 7.5 Cu.Pt.of Nea Caveat <br /> Grout containing less than <br /> 5%bentonite powder <br /> 0-40 feet <br /> --------------------------------- <br /> Clayey Silt(ML) Trace very fine sand,brown <br /> 15 (10YP5/3),low plasticity,damp. 15 <br /> 5 B3-15 0.0/0.0 0.0 0935 <br /> 8 Silty Sand(SM):Trace clay,brown(10YR 5/3),well <br /> 8 graded,very fine to coarse sand,subangular to round, <br /> low density,damp. <br /> As above except dominantly very fine to fine grained <br /> ---------------------------------- <br /> Silty Clay(CL) Trace very fine sand,brown(10YR <br /> med <br /> p. <br /> •::•:.•:,.. 5/3), ---- -- <br /> plasticity, --m------------ <br /> 20 g B3-40 0.0/0.0 0.0 0945 :•:•::•:•:•:•: Sand(SP):Trace silt,brown(10YR 5/3),poorly graded, 2( <br /> 11 _ very fine to medium grained,low density,'von staining, <br /> tmoist. ______________Silty Clay(CL);Trace very fine sand,brown(10YR <br /> 5/3),medium density,firm,damp. / <br /> 2870 Gateway OaksUMSuenerrento,C33 Ste 300 <br /> 91W9.20 0 95833 <br /> 916419-2000 <br />