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' Drilling Log <br /> ❑❑® GROUNDWATER Soil Boring SB--4 <br /> ❑❑❑ TECHNOLOGY <br /> Project ,Chevron-W Benjamin Holt, Stockton_ Owner Chevron USA Products Comoany See Site Map <br /> Location 2905 W Benjamin Holt Dr, Stockton, CA - Pro) No 02070 0017 <br /> For Boring Location <br /> Surface Eley Total Hole Depth 18 5 ft Diameter 6 in COMMENTS <br /> Top of Casing Water Level Initial Static <br /> Screen Dia Length Type/Size 8 from phones at the car wash <br /> Casing Dia Length Type <br /> Fill Material Neat Cement Rlg/Core .CME-75/S ht Spoon <br /> ' Drill Co 5'ES, Inc Method Hollow Stem Auger/PID <br /> Driller M,ke Duffy Log By Jason Fedota Date 06/20/94 Permit # <br /> Checked By Ed Simons License No RG304422 <br /> C ° Description <br /> yc]E Q <br /> Q... CL 'a pO <br /> � U <br /> . �, a V <br /> a_ a n V E # O m� to (Color, Texture, Structure) <br /> o ¢ 6 Trace < 10%, Little 10% to 20%, Some 20% to 35%, And 35% to 50% <br /> —2 <br /> 0 Asphalt over base course <br /> Brown to gray mottled silty sandy CLAY (25,25,50) (dry, no hydrocarbon <br /> ' 2 odor) <br /> 4 cl_ <br /> 7 SS-4 5 <br /> ' (saturated cuttings) <br /> 8 Light gray medium to coarse SAND (--90% qtz, moderately sorted, <br /> ' subrounded, dry, loose, no hydrocarbon odor) <br /> 10 22 S13-4 5 <br /> ' -l0 7 <br /> 12 9 <br /> SW <br /> 14 <br /> 30 SB-4 8 (grades moist hydrocarbon odor) <br /> ' 16 -15 12 <br /> 13 <br /> 48 SB-4 2 Brown and gray clayey silty fine SAND (20,30,50) (very moist, <br /> 18 -17 3 SM hydrocarbon odor) <br /> End of boring Backfilled with neat cement <br /> 20 - <br /> 22 - <br /> 24 - <br /> 02224 <br /> ' 07/21/1894 lithlog-mar83 Page l Of l <br />