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BORING LOG <br /> Project No Boring& Casing Diameter Logged By �G <br /> KEI-P 88-1013 9" 2" W W CSG A6 3 3 <br /> Protect Name Unocal S/S#5098 Well Cover Elevation Date Drilled <br /> 5606 Pacific Avenue,Stockton 5/20-21/92 <br /> Boring No. Drilling Hollow-stem Drilling Company <br /> MW 12 Method Auger Woodward Drilling Company <br /> Penetration G.W. Depth Strati- <br /> blows/6" level (feet) graphy Description <br /> Samples USCS <br /> 0 <br /> 4 inch concrete sidewalk over sand and gravel base <br /> CL/CH Clay,trace sand,very stiff,moist,very dark gray, trace <br /> pores <br /> Silty clay,estimated at 15% silt,very stiff,moist,brown to <br /> yellowish brown,trace pores and rootlets <br /> 5 <br /> CL <br /> 9/18/32 <br /> Silty clay,estimated at 35% silt with trace sand,hard,moist <br /> 10 dark yellowish brown,trace pores <br /> —— _...._._......._._.———--gradational———————— <br /> 8/14/18 <br /> 15 –_–_– CIayey silt,estimated at 35-40% silt,trace sand,very stiff to <br /> hard,moist,mottled brown and grayish brown,trace caliche <br /> ––= in voids <br /> ML <br /> 13/16/22 –__= Clayey silt,estimated at 20% clay with trace sand,slightly <br /> 20 zz=_= micaceous,hard,moist,brown to dark yellowish brown <br /> zz <br /> zzz <br /> Page 1 of 4 <br />