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Drilling Log <br /> ❑�❑ GROUNDWATER Soil Boring SB-3 <br /> TECHNOLO_Y <br /> Project Chevron-S. Center. S'.,ckton owner Chevron <br /> Location 139 South Center. S'c ckton, CA Proj.No. 02070 5039 <br /> O 1- a °' <br /> J v) <br /> OE �, o =o, Description <br /> a� ..a a v 0 30 <br /> at a a o �_� (Color, Texture. Structure) <br /> Ov (a 0N m x `3 j Trace < 10%, Little to% to 20%, Some 20% to 35%. And 35% to 50% <br /> 24 g / Bluish gray silty sandy CLAY (20,20,60) with white chalky streaks and <br /> S13-3 s , patches. (hydrocarbon odor) <br /> .5 -25' 12 <br /> 26 CL <br /> 28 <br /> Mottled dark gray and greenish gray silty CLAY (20,80) (moist, very slight <br /> g hydrocarbon odor) <br /> 30 s8-3 12 <br /> t.0 -30' 13 <br /> CL4. <br /> ! <br /> /. <br /> 32 <br /> i <br /> Bluish gray silty CLAY (40,60) (moist, moderate hydrocarbon odor) <br /> 34 5 <br /> SB-3 a <br /> 1.5 -35' 16 �. <br /> CL <br /> -36 - <br /> - 38 — Bluish gray silty CLAY (40,60) with patches of mud/CLAY (moist to wet, <br /> a <br /> moderate to strong hydrocarbon odor) <br /> SB-3 7 CL <br /> 40 7.0 -40' It <br /> (grades wet) <br /> 42 ;I Dark bluish gray CLeEY SILT (20,80) (wet, strong degraded <br /> SB-3 4i ; ML hydrocarbon odor) <br /> 15 -43' 7 Encountered Water, 05/13/94, 1045. <br /> 44 s ' 1 End of boring. <br /> 46 <br /> �i <br /> 48 <br /> I <br /> is <br /> �t <br /> 50 ii <br /> 52 <br /> 54 <br /> I� <br /> r 56 I� <br /> Page: 2 Of 2 <br /> 06/09/1994 Gthlog-mar93 <br />