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BORING LOG <br /> Protect No Boring Diameter 9" Logged By CSG <br /> KEI-P89-1104 Casing Diameter N/A W W <br /> • Project Name Unocal SIS #5421 Well Cover Elevation Date Drilled <br /> 7303 Pacific Avenue,Stockton 11/9/92 <br /> Boring No Drilling Hollow-stem Drilling Company <br /> EB2 Method Auger Woodward Drilling Co <br /> Penetration G W. Depth Strati- <br /> blows/6" level (feet) graphy Description <br /> Samples USCS <br /> 0 <br /> Asphalt pavement over sand and gravel base <br /> Silty clay,estimated at 15% silt and 5-10% sand,stiff,moist,very <br /> dark gray(7 5YR N2/) <br /> 16/17/34 5 CL CIay,estimated at 10-15% silt and sand hard moist, gravish <br /> brown (10YR 5/2) <br /> -- <br /> 14/16/21 10 =__= Silt,estimated at 10-15% clay and trace sand hard, most light <br /> z—.7—. brownish gray (10YR 6/2) with slight strong brown (7 5YR 4/6) <br /> mottling <br /> NII.. <br /> --- --- ----------------------- <br /> 15 Silty sand,estimated at 20% silt,dense, moist, light gray (10YR <br /> 12/15/24 SM 7/2)with strong brown (7 5YR 4/6)stauung in root pores sand is <br /> fine to very fined-grained <br /> 9111/14 _ _—_ Sandy silt,estimated at 15 to 20% very fine-grained sand, very <br /> 20 ML ___= stiff,moist,grayish brown (2 5Y 5/2) with yellowish brown <br /> ———_ (IOYR 5/6) mottling <br /> Page 1 of 3 <br />