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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 Elevation Date Drilled <br /> 7303 Pacific Avenue Stockton 11/9/92 <br /> Boring No Drilling Hollow-stem Drilling Company <br /> E134 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 F = <br /> 45 Clayey silt,estimated at 15% clay, hard, moist brown (10YR 5/3 , <br /> -_--— slightly micaceous <br /> ML —_—_ <br /> 28/37/34 50 _Sp == Sandy silt estimated at 25-30% fine-grained sand hard moist <br /> zz <br /> —Z pale brown (10YR 6/3) V <br /> zz <br /> 55 CL <br /> 15/27x34 Silty clay,estimated at 15% silt and 5-10% fine-grained sand <br /> i <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 /> 13/19x24 Z =——— slightly micaceous <br /> TOTAL DEPTH 59' <br /> 60 <br /> 65 <br /> Pagc 3 of 3 <br />