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BORING LOG <br /> Project No Boring Diameter 9" Logged By <br /> KEl-P89-1104 Casing Diameter N/A W W :fGG <br /> Project Name Unocal S/S#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 /> 11/15/1945 Clayey silt,estimated at 35% silt and 5% fine-grained sand,hard, <br /> m-:. — moist,light yellowish brown (2 5Y 6/3), trace pores,trace caliche <br /> ML ---- <br /> 8/10/17 <br /> m-:.——— Clayey silt,estimated at 15-20%o clay, very stiff, moist, light <br /> 50 — <br /> — <br /> —mm' yellowish brown (2 5Y 6/3), trace pores <br /> T Clayey sand,estimated at 15%clay and 5-10% silt,dense, moist <br /> to very moist,pale brown (10YR 6/3),sand is well graded,trace <br /> 11/17/25 55 SC _ caliche <br /> =.7z=. Silt,estimated at 10% clay,hard, moist,light yellowish brown <br /> ML ___ — (2 5Y 6/3) <br /> 10/32/35 Z s's`s`:` ilty sand,estimated at 15% silt,very dense.very moist to <br /> SM ;,;� saturated sand is fine-grained,pale brown 10YR 6/3 <br /> TOTAL DEPTH 58 5' <br /> 60 <br /> 65 <br /> Page 3 of 3 <br />