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Drilling Log <br /> ❑® GROUNDWATER Soil Boring SB-3 <br /> ❑❑❑ TECHNOLOGY <br /> Chevron-W Sen amen Holt Stockton Owner Chevron USA Products Com an See Map <br /> Protect — - For Boring Location <br /> Location 2905 W Benjamin Holt Dr, Stockton, CA _ _ Prol No 02070 0017 <br /> Surface Eley Total Hole Depth 185 ft Diameter 6;n COMMENTS <br /> Top of Casing water Level Initial Static <br /> Screen. Dia Length Type/Size -20 from apex of planter rn front <br /> entrance <br /> Casing Dia Length Type <br /> Fill Material Neat Cement Rig/Core CME-L5IS lit Spoon <br /> Drill Co. SES, Inc Method Hollow Stem AuQer/PIQ <br /> Driller Mike Duffy Log By Jason Fedota Date 08/20/94 Permit 0 <br /> Checked By Ed S,monrs License No RG#4422 <br /> _ t Description <br /> E cu 'o o tat U <br /> o_ a �0 (Color, Texture, Structure) <br /> 0� 1O a 0 m Trace < 10%, Little 10% to 20%. Some 20% to 35%, And 35% to 50% <br /> A- �� mm ` T _ Asphalt_oveL base_course _ <br /> 0 0 — - <br /> Gray clayey sandy SILT (20,35,45) (damp, soft, moderate hydrocarbon <br /> 2 odor) <br /> 4 <br /> • <br /> 7 SB-3 4 <br /> 6 -5 5 ML <br /> 8 <br /> 10 5 SB-3 4 <br /> -10 a Light graymedium to coarse SAND (subrounded, poorly sorted, dry medium <br /> i2 12 hydroccaron odor) <br /> sw <br /> 14 Dark gray to orange mottled silty CLAY (40,60) (moist, moderate <br /> 150 58-3 4 hydrocarbon odor) <br /> '6 -15 59 <br /> CL <br /> 17 S6-3 4 Dark brown and gray mottled sandy dilty CLAY (20,30,50) (moist slight <br /> l8 -17 6 hydrocarbon odor) <br /> End of boring Backfilled with neat cement <br /> 20 <br /> 22 <br /> L24 <br /> 07/21/1994 Gthlog-mar93 <br /> Page 1 of 1 <br />