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Drilling Log <br /> ❑❑� GROUNDWATER Soil Boring SB--1 <br /> �❑ TECHNOLOGY <br /> . Proiect Chevron-W Benjamin Holt, Stockton Owner Chevron USA Products Company See Site Map <br /> Location 2905 W Benjamin Holt Or, Stockton, CAProi No 02070 0017 For Boring Location <br /> Surface Elev Total Hole Depth 215 ft Diameter 8 In COMMENTS <br /> Top of Casing Water Level Initial Static <br /> Screen' Dia Length Type/Size -!z'along planter curb facing-3 of <br /> curb <br /> Casing Dia Length Type <br /> Fill Material Neat Cement Rig/Core CME-75/SRht Spoon <br /> Drill Co SES, Inc Method Hollow Stem Auger/PIO <br /> Driller We Duffy Log By Jason Fedota Date 06/20/94 Permit >!E <br /> Checked By Ed Simons License No RG#4422 <br /> s <br /> t.� <br /> DE o " V�, Description <br /> Qw ..d a V u ap U <br /> 0_ a-Q E ; m (D fA (Color, Texture, Structure) <br /> n ° ¢ � <br /> Ul Trace < 10%, Little 10% to 20%. Some 20% to 35%. And 35% to 50% <br /> m x a <br /> _2 <br /> 0 Asphalt over dark brown to black clayey gravelly SAND <br /> (grades to brown sandy clay, soft, moist, no hydrocarbon odor) <br /> 2 <br /> CL <br /> 4 (grades dark brown gravely CLAY) <br /> 2 SB-1 3 <br /> 6 -5 4 Gray silty fine SAND (damp, no hydrocarbon odor) <br /> 5 <br /> SM <br /> 8 Light gray medium SAND (speckled black, rounded, moderately to well <br /> -90% quartz) <br /> 10 40 56-1 5 <br /> -10 a i <br /> 11 SP <br /> 12 <br /> 14 <br /> (grades to silty sand) <br /> 200 SS-1 2 5M <br /> 1� -15 4 Orange brown/gray mottled silty CLAY (40,60) (moist, strong hydrocarbon <br /> 6 odor, some root casts and trace sand grains) <br /> 18 <br /> CL <br /> 20 Orange brown/gray mottled sandy silty CLAY (20,30,50) (very most, root <br /> 2 5B-1 3 casts, sfight hydrocarbon odor) <br /> -20 4 <br /> 5 <br /> 22 End of boring Backfilled with neat cement <br /> 24 <br /> 07/21/1994Iallog-mar93 page 1 0f 1 <br />