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BORING LOG <br /> Protect No Boring Diameter 9" Logged By G <br /> KEI-P89-1104 Casing Diameter N/A WW <br /> Project Name Unocal S/S #5421 Well Cover EIevation Date Dnlled <br /> 7303 Pacific Avenue, Stockton 11/10/92 <br /> Boring No EB7 Drilling Hollow-stem Drilling Company <br /> (Directionally drilled to the west at an angle Method Auger <br /> of 10 degrees to the vertical) Woodward Drilling Co <br /> Penetration G W. Depth Strati- <br /> blows/6" level (feet) graphy Description <br /> Samples USCS <br /> 0 <br /> Silty gravel, gravel to 1-1/2 inches in diameter dense moist <br /> yellowish brown (10YR 5/4), (fill) <br /> 9/13/18 5 Clay estimated at 5% silt and 5% sand very stiff, moist very <br /> dark gray(10YR 3/1), trace rootlets and caliche <br /> CL <br /> 3/4/6 10 Silty clay,estimated at 35% silt and trace sand,stiff moist h2hii <br /> brownish gray (10YR 6/2), trace pores 4 <br /> 12/18/21 15 —___ Silt,estimated at I0% clay, hard, moist, light brownish gray <br /> (10YR 6/2) with yellowish brown (10YR 5/6) mottling, slightly <br /> —zzz. micaceous V <br /> ML ---_ <br /> —_- Silt,estimated at 10%clay and 5-10% very fine-grained sand <br /> 8/18/14 20 - very stiff moist to very moist, light brownish gray (2 5Y 6/2) <br /> trace pores with yellowish brown (IOYR 5/7)staining <br /> micaceous <br /> --7z= <br /> Page 1 of 2 <br />