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Drilling Log <br /> GROUNDWATER Soil Boring SB-2 <br /> ❑D❑ T ECHNOLOGY <br /> •Project .Chevron-W Benlamin Nott, Stockton Owner Chevron USA Products Company See Slte Map <br /> For Boring Location <br /> Location 2905 W Benlamin Holt Or, Stockton, CA Prol No 02070 0017 <br /> Surface Eley Total Hole Depth 215 ft Diameter B in COMMENTS <br /> Top of Casing Water Level Initial 18 ft Static <br /> Screen Dia Length Type/Size to from the SE corner of station <br /> building <br /> Casing Dia Length Type <br /> Fill Material Neat Cement Rig/Core CME-75/S lit Soon <br /> d Drill Co SES Inc Method Hollow Stem Auger/PID <br /> Driller M,ke DuffyLog By Jason Fedota Date 08/20/94 Permit # <br /> Checked By Ed Srmonrs License No RG04422 <br /> Description <br /> c OE m o o �Q1 C3 <br /> aaia a � z ;; �°� m (Calor, Texture, Structure) <br /> O" m ° X 0 N Trace < 10X, Little 10% to 20%. Some 20% to 35%. And 3S% to 50% <br /> FD x a <br /> 1r <br /> = 0 Asphalt over base course <br /> a o Dark brown-gray clayey sandy SILT (20,30,50) (dry, no hydrocarbon <br /> 2 odor) <br /> • 4 <br /> ML <br /> 5 58-2 6 <br /> 6 -S <br /> 8 Brown and gray mottled silty CLAY (30,70) (damp, soft, strong <br /> hydrocarbon odor) <br /> 10 30 56-2 <br /> 2 5 (grades with green/gray discoloration) <br /> 9 CL <br /> a 12 <br /> 1 <br /> a 14 Brown silty fine SAND (45 55) (moist, very strong hydrocarbon odor) <br /> 300 S8--2 5 <br /> 16 -15 6 SM <br /> 18 Water Encountered 06/20/94 1 25P <br /> i <br /> Gray silty fine to medium SAND (20 80) (saturated, loose, moderate <br /> 20 Sk hydrocarbon odor) <br /> 30 S13-2 2 <br /> �• 20 3 <br /> 22 9 End of boring Backfilled with neat cement <br /> t <br /> - 24 - <br /> 0712111994 1A Nog-mar93 Page l of 1 <br />