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1 Project: California Army National Guard Log of Soil Boring: B-7 <br /> Location: Stockton CA Project Number: 18600251.02041 <br /> Dates Drilled: 03/06/08 Borehole Name: B-7 <br /> Drilling Contractor: Gregg Drilling Company Logged BY: T.Gere <br /> Drilling Method: Hollow-stem Auger Checked By: V.Elarth,P.G.#7120 <br /> Borehole Diameter: 8-inch Total Depth: 38.5 feet <br /> Comments: 4 feet East of Northeastern comer of dispenser pad Sampling Method: Split Spoon <br /> A <br /> � E e 3 <br /> ' w � $ y gN a u a <br /> n •g <br /> LITHOLOGY DESCRIPTION SOIL BORING DETAILS <br /> 0 v <br /> I <br /> Asphalt----------------------------- 0 <br /> Road base <br /> 'U <br /> `-----------------------------_JSilty Clay(CL):Trace very fine sand,brown(10YR5/3),low plasticity,soft,damp. <br /> --------------------------------- <br /> 5 Sandy Silt(ML):Trace clay,yellowish brown(10 YR5 B7-5 0.0/0.0 0.0 09004/4),very fine to medium sand,non-plastic,soft,damp. <br /> 12 <br /> 13 <br /> r-------------------------------- <br /> 7 <br /> 7 Silty Sand(SM):Trace clay,yellowish brown(10 YR <br /> 5/4),well graded,very fine to coarse grained,subangular <br /> 10 to subround,low density,damp. <br /> 12 0 00/00 00 0905 --------------____________________ 10 <br /> 10 B7-10,010.0 . Clayey Silt(ML):Trace very fine to medium sand, <br /> yellowish brown(10 YR 5/4),low plasticity,firm,damp. <br /> 7.5 Cu.Ft.of Neat Cement <br /> Grout containing less than <br /> 5%bentonitepowder <br /> 0-38.5 feet <br /> 8 <br /> 11 <br /> 15 B7-15 <br /> 18 0.0/0.0 0.0 0910 15 <br /> 8 Sandy Silt(ML):Trace very fine to fine sand,yellowish <br /> 12 brown(10 YR 5/4),low plasticity,firm,damp. <br /> 20 --------------------------------- <br /> 20 B7-20 0.0/0.0 0,0 0915 :•:•i:•::•:•: Sand(SP):Trace silt,dark yellowish brown(10 YR 20 <br /> 4/4),poorly graded,very fine to fine grained,subangular <br /> to round,low density,lots of oxidation,moist <br /> ' 2870 CyCA k.95 Dn,33 Ste 300 <br /> Bevamarto,CA 95833 <br /> 916679-2000 <br />