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BORING LOG <br /> Protect No. Boring& Casing Diameter Logged By <br /> KEI-P 88-1013 9" 2" W W <br /> Protect Name Unocal S/S#5098 Well Cover Elevation Date Drilled <br /> 5606 Pacific Avenue,Stockton 5/2192 <br /> Boring No. Drilling Hollow-stem Drilling Company <br /> MW 11 Method Auger Woodward Drilling Company <br /> Penetration G.W. Depth. Strati- <br /> blows/6" level (feet) graphy Description <br /> Samples USCS <br /> —CL <br /> ML __Z__ Clayey silt,estimated at 35-40%clay and trace sand,very <br /> 7/11/15 25 = _= stiff,moist,yellowish brown,trace pores with gray staining <br /> zzz <br /> zzz <br /> 8/11/12 — --- ..._._.._......_..._--------_._.------- <br /> 1 30 Silty clay,estimated at 15% silt,trace sand,very stiff,moist, <br /> yellowish brown and grayish brown mottled,trace pores <br /> CL with gray staining <br /> 5/7/13 <br /> 35 ____ Clayey silt,estimated at 25-30%clay, salt is fine-grained, <br /> NIL –––= slightly elastic,slightly micaceous,very stiff,yellowish <br /> __= brown and grayish brown mottled,trace cahche <br /> zzz <br /> zzz <br /> zzz <br /> 7/6/8 Silty clay,estimated at 15% silt,trace sand,stiff,moist, <br /> 4Q grayish brown,trace organic matter and root pores <br /> CL <br /> 4L <br /> Page 2 of 4 <br /> CONROFLATIAL <br />