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BORING LOG <br /> Protect No Boring Diameter 9" Logged By <br /> KEl-P89-1104 Casing Diameter N/A W W 566 11'63 3 <br /> iProtect Name Unocal S/S #5421 Well Cover Elevation Date Drilled <br /> 7303 Pacific Avenue,Stockton 11/9192 <br /> Boring No Drilling Hollow-stem Drilling Company <br /> EB3 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 /> Clay,estimated at 5-10%silt and 5% fine-grained sand stiff <br /> moist,black(10YR 2/1) <br /> 5 Silty clay,estimated at 25% silt, very stiff moist light brownish <br /> 10/12/19 gray(10YR 6/2) with trace yellowish brown (10YR 516) <br /> staining <br /> CL <br /> 11/15/23 10 Silty clay,estimated at 15%o silt hard,moist light brownish grav <br /> (10YR 6/2)with slight yellowish brown (10YR 6/4) mottling <br /> 15 __— Clayey silt,estimated at 30% clay and 5% very fine-grained sand <br /> 51619 —__= stiff, moist,light brownish gray (10YR 6/2), trace pores with <br /> yellowish brown (10YR 5/6) staining <br /> ML <br /> ; Silty sand,estimated at 15-20% silt and trace clay, hard moist <br /> 8/19/34 20 S M ';` <br /> % % brown (10YR 5/3) sand is fine to very fine-grained sliuhtl,, <br /> micaceous <br /> Paoc 1 of 3 <br />