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BORING LOG <br /> Project No. Boring Diameter 9" Logged By '7_ <br /> KEI-P89-1104 Casing Diameter N/A W W A/ �3 <br /> Protect Name Unocal S/S #5421 Well Cover Elevation Date Drilled <br /> 7303 Pacific Avenue,Stockton 11/10/92 <br /> Boring No Drilling Hand Drilling Company <br /> EB6 Method Auger Woodward Drilling Co <br /> Penetration G W Depth Strati- <br /> blows/6" level (feet) graphy Description <br /> Samples USCS <br /> 0 <br /> Four inch concrete slab over sand and gravel base <br /> Silty clay, esmated at 15% silt 517o sand and trace gravel to 3/4 <br /> inch in diameter moist brown (10YR 4/3) <br /> Silty clay,estimated at 15% silt and 5-10% fine-grained sand <br /> moist, very dark gray (5Y 3/1) <br /> CL <br /> 5 <br /> Silty clay,estimated at 25% silt and 5-10% fine-grained sand, <br /> moist,pale brown (10YR 6/3) <br /> ML __—— Silt,estimated at 10-15%clay and trace sand moist,light <br /> i0 --—— brownish gray 10YR 6/2 <br /> TOTAL DEPTH 10' <br /> 15 <br /> 20 <br /> Page I of l <br />