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BORING LOG <br /> Project No. Boring Diameter 9° Logged By <br /> KEI-P89-1104 Casing Diameter N/A WW G /633 <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 /> EB4 Method Auger Woodward Drilling Co <br /> Penetration G W Depth Strati- <br /> blows/6" level (feet) graphy Description <br /> Samples USCS <br /> 16/23/25 45 —=== Clayey silt,estimated at 15% clay,hard,moist,brown(10YR 5/3 , <br /> _— — slightly micaceous <br /> _ <br /> ML =— <br /> ZZ <br /> 2$/37/34 50 j�_Sp __ Sandy silt,estimated at 25-30% fine-grained sand, hard moist <br /> pale brown( 0YR 6/3) <br /> zz <br /> CL Silty clay,estimated at 15% silt and 5-10% fine-grained sand, <br /> 15/27/34 55 <br /> pale brown(10YR 6/3) <br /> ML Clayey silt,estimated 20% clay and 5-10% fine-grained sand, <br /> ___— hard,very moist to saturated,light yellowish brown (2 5Y 6/3) <br /> 13/19/24 slightly micaceous <br /> TOTAL DEPTH 59' <br /> 60 <br /> 65 <br /> Page 3 of 3 <br />