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Drilling Log <br /> ! GROUNDWATER Soil Boring SB-3 <br /> �❑ <br /> T E C H N 0 L 02 Y <br /> Project Chevron--S. Center, E. vkton Owner Chevron <br /> Location 09 South Center. S•_ ,:kion CA Proi. No. 02070 5039 <br /> � T � <br /> a IME a ° I �Q1 Description <br /> O a [] � o U <br /> �-- a a6 3c o - V) (Color, Texture, Structure) <br /> E X� � V) Trace < 10%. Little 10% to 20%. Some 20% to 35%. And 35X to 50% <br /> 24 g Bluish gray silty sandy CLAY (20,20,60) with white chalky streaks and <br /> patches. (hydrocarbon odor) <br /> .5 -25' 12 <br /> 26 Ci. <br /> 28 <br /> Mottled dark gray and greenish gray silty CLAY (20,80) (moist, very slight <br /> B hydrocarbon odor) <br /> 30 56-3 12 ,i <br /> 1.0 -30' 13 <br /> CL i <br /> 32 / <br /> Bluish gray silty CLAY (40,60) (moist, moderate hydrocarbon odor) <br /> 34 5 <br /> 5H-3 8 ' <br /> 1.5 -35' 16 � <br /> CL <br /> 3fi <br /> y <br /> 38 <br /> Bluish gray silty CLAY (40,60) with patches of mud/CLAY (moist to wet, <br /> 4 �. <br /> moderate to strong hydrocarbon odor) <br /> 40SB-3 7 CL <br /> 7.0 -40' li <br /> (grades wet) <br /> 42 /�, Dark bluish gray CLEY SILT (20,80) (wet, strong degraded <br /> 58-3 4 i ML hydrocarbon odor) el <br /> 15 -43' s 8 i Encountered Water, 06/13/94. 1045. <br /> 44 End of boring. <br /> 46 <br /> 46 <br /> 50 <br /> i <br /> 62 <br /> 54 E <br /> 56 � <br /> i <br /> 06/09/1994 Page: 2 of 2 <br />