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Drilling Log <br /> GROUNDWATER Soil Boris SB-4 <br /> EEITECHNOLOGY 9 <br /> Project Chevron/Stockton Owner Chevron USA Products Co <br /> Location 45 E Hard+no Way, Stockton CA Prol No 02070 4527 <br /> a� oQ al o o t� Description <br /> a <br /> Qo <br /> per, a s o s �-, U (Color, Texture, Structure) <br /> 0 m x a Trace < 10%, Little 10% to 20%. Some 20% to 35%, And 35% to 5o% <br /> 24 6 <br /> S8-4 8 Gray sandy silty CLAY (continued) <br /> 0 -25 12 <br /> 26 CL <br /> - 28 — <br /> Red-brown clayey SILT (40,60) with abundant root casts (moist, no <br /> 4 hydrocarbon odor) <br /> 3 58-4 7 <br /> 0 <br /> 0 -30 8 ML <br /> 32 <br /> Light brown-gray silty CLAY (10,90) with white calcareous streaks and <br /> patches (mast, no hydrocarbon odor) <br /> 34 $ <br /> 58-4 5 <br /> 4 -35 5 CL <br /> . 36 <br /> 38 <br /> Mottled orange-dark brawn and gray silty CLAY (20,80) with white <br /> 6 calcareous streaks and patches (moist, no hydrocarbon odor) <br /> 40 56-4 14 <br /> 0 -40 l6 <br /> CL <br /> 42 <br /> 44 s <br /> SB-4 16 Brown-orange silty CLAY (20,80) with patches of gray (moist, no <br /> 0 -45 26 CL hydrocarbon odor) <br /> 46 <br /> End of boring <br /> -48 - <br /> 50 - <br /> - 52 — <br /> _ 54 - <br /> - 5 <br /> 85052 54 56 <br /> 06/16/1994 4thlog—mar93 Page 2 of 2 <br />