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BORING LOG <br /> Protect No. Bormg& Casing Diameter Logged By �G <br /> KEI-P 88-1013 9" 2" W W <br /> Project Name Unocal SIS#5098 Well Cover Elevation Date Drilled <br /> 5606 Pacific Avenue, Stockton 5/21/92 <br /> Bormg No.,*____ Drilling Hollow-stem Drilling Company <br /> MW 1 l 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 and silt,very stiff,moist,very dark gray, <br /> trace rootlets <br /> Silty clay,estimated at 15-20%silt with trace sand and <br /> rootlets,stiff,moist,brown to yellowish brown <br /> 5 <br /> 8/16/30 Silty clay,estimated at 25%a silt with trace fine sand,hard, <br /> 10 immost,brown to dark yellowish brown,trace rootlets <br /> CL <br /> 9/15/28 <br /> 15 Silty clay,estimated at 3545% silt with trace sand, slightly <br /> micaceous,hard,moist,brown, trace pores <br /> 11/1683 <br /> 20 Silty clay,estimated at 45% silt with trace sand,slightly <br /> micaceous,hard,moist,brown to dark yellowish brown. <br /> trace pores <br /> Page 1 of 4 <br />