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BORING LOG <br /> Project No. Boring Diameter 9" Logged By <''6�_7"( <br /> KEI-P89-1104 Casing Diameter N/A W W :f(,U /G 33 <br /> iProject 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 /> Description <br /> blows/6" level (feet) graphy <br /> Samples USCS <br /> 11/15/19 =___— Clayey silt estimated at 35% silt and 5% fine-grained sand hard <br /> 45 moist, light yellowish brown (2 5Y 6/3), trace pores, trace caliche <br /> ML __ — <br /> 8/10/17 ———— Clayey silt estimated at 15-20% clay, very stiff moist light <br /> 50 yellowish brown (2 5Y 6/3) trace pores <br /> Clayey sand, estimated at 15% clay and 5-10% silt,dense moist <br /> SC to very moist, pale brown (10YR 6/3),sand is well graded trace <br /> 11/17/25 55 caliche <br /> __ = Silt,estimated at 10% clay,hard,moist, light yellowish brown <br /> ML <br /> (25Y6/3) <br /> 10/32/35 Z s :•: s• illy sand,estimated at 15% silt, very dense very moist to <br /> SM j•:•'s:• saturated sand is fine-grained, pale brown f 10YR 6/3 <br /> TOTAL DEPTH 58 5 <br /> 60 <br /> 65 <br /> • <br /> Page 3 of 3 <br />