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BORING LOG <br /> Project No. Boring& Casing Diameter Logged By ✓ G G <br /> KEI-P 88-1013 9" 2" W W <br /> Project Name Unocal S/S #5098 Well Cover Elevation Date Drilled <br /> 5606 Pacific Avenue,Stockton 4/8/92 <br /> Boring No. Drilling Hollow-stem Drilling Company <br /> MW 13 Method Auger Woodward Drilling Company <br /> Penetration G.W. Depth Strati- <br /> blows/C" level (feet) graphy Description <br /> Samples USCS <br /> 0 <br /> Asphalt concrete over sand and gravel base <br /> CL/CH Clay,trace sand,hard,moist,very dark gray,trace rootlets <br /> Silty clay,estimated at 20%o silt,trace sand,hard,moist, <br /> 7/9/13 5 very dark gray,trace rootlets <br /> CL <br /> Silty clay,estimated at 20% silt and 5-10% very fine sand, <br /> very stiff,moist,yellowish brown <br /> -- <br /> --------------------- <br /> ZZ.7 <br /> 9/19/32 Silt with clay,estimated at 15-20%clay and 5% <br /> l0 ML =__ <br /> __= fine-grained sand,silt is fine-grained,slightly elastic,hard, <br /> _ <br /> .7z'z' moist,brown <br /> --- ------------------------ <br /> 7/16122 15 CL Silty clay,estimated at 35% elastic silt,clay is low <br /> plasticity,hard,moist,brown <br /> --------------------- <br /> zzz <br /> 6/14/46 <br /> 20 ML =_— Silty clay as above with trace caliche,hand,moist,brown <br /> —_— <br /> CL Silty clay,estimated at 35% elastic silt,hard,moist,brown <br /> Page 1 of 4 <br />