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Drilling Log <br /> ❑❑❑❑® GROUNDWATER Soil Boring SB-5 <br /> ❑ TECHNOLOGY <br /> Project Chevron/Stockton Owner Chevron USA Products Co <br /> Location d5 E Hardrno Way, Stockton, CA Prol No 02070 4527 <br /> O . T n <br /> of _ 0 iD Description <br /> a Q L) u ap U <br /> Oa)_ o_aE 31 <br /> V Wr N (Color, Texture, Structure) <br /> uy x j Trace < 10%. Little 10% to 20%, Some 20% to 35%. And 35% to 50% <br /> 24 2 <br /> S8-5 4 Gray sandy silty CLAY (continued) <br /> 0 -25, 8 <br /> 26 C <br /> 28 <br /> Brown-orange clayey SILT (10,90) with root casts (moist, crumbly no <br /> 4 hydrocarbon odor) <br /> 30 58--5 8 <br /> 0 -30 14 <br /> ML <br /> 32 - <br /> -34 - 4 <br /> 0 -355 12 Olive-gray silty CLAY (10,90) (moist, no hydrocarbon odor) <br /> 36 CL <br /> 38 Mottled olive-gray and brown-orange silty CLAY (10,90) with root casts <br /> 7 (moist, no hydrocarbon odor) <br /> 4 Q SB-5 12 <br /> a -40 17 <br /> 42 CL <br /> 44- 14 <br /> S8-5 28 <br /> 0 -45 39 <br /> 46 End of boring <br /> - 48 - <br /> 50 - <br /> - 52 - <br /> _ 54 - <br /> 1.- <br /> 52 <br /> 54 <br /> 56 <br /> dl 1 <br /> 06/16/1994 Fithlog—mar93 Page 2 of 2 <br />