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Drilling Log <br /> ��❑ GROUNDWATER Soil Boring SB'-10 <br /> TECHNOLOGY <br /> i _ <br /> Project Chevron-E Harding, Stockton Owner Chevron USA Products Com an <br /> Location 45 East Harding Way, Stockton, CA Prof No 02070 0139 <br /> r� v <br /> Description <br /> aw �a a U p -a UJ <br /> C3 <br /> 0 a.Cl (Color, Texture, Structure) <br /> ro v o � N Trace < 10%, Little 10% to 20%, Some 20% to 35%. And 35% to 50% <br /> 24 Sandy clayey SILT (20,30,50) brown with 10% gray and 3% white mottling, <br /> 150 1g dry to damp, soft, hydrocarbon/chemical odor <br /> 18 <br /> 26 s13-10 32 <br /> -26 5 ML <br /> 28 <br /> Clayey SILT (50 50) brown, dry to damp fine (<1mm) root casts, chemical <br /> 30 217 odor <br /> 5B-10 22 <br /> -310 28 <br /> 32 - <br /> - 34- cL Sandy silty CLAY (15,40,45) grading to silty SAND (20,80) brown, dry to <br /> o 25 damp, slight hydrocarbon/chemical odor <br /> 36 S3 <br /> -10 33 <br /> -36 0 38 <br /> SM <br /> I <br /> 38 Sandy silty CLAY (25,30,45) olive-brown with 40% white calcareous <br /> mottling, dry to damp, slight hydrocarbon odor <br /> 40 o 19 <br /> 25 CL <br /> SB-1C 28 <br /> 42 -415 <br /> T Static Water, 06/01/95 1622 hrs <br /> 44 (grades interbedding silty CLAY and clayey SILT, decreasing white <br /> 0 20 mottling no hydrocarbon odor ) <br /> 26 <br /> 46 SB-10 28 <br /> -46 5 <br /> CL <br /> - 48 - <br /> 50 - C 19 g Encounterd Water lDoller's Catl), 06/01/95, 1249 hrs <br /> 24 <br /> SB-10 28 Sandy silty CLAY (10 40,50) brown grades damp to moist no hydrocarbon <br /> 52 -515 odor End of boring Back filled with cement <br /> 54 - <br /> L56 <br /> 07/14/1995 i thiog-mar93 Page 2 of 2 <br />