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Drilling Log <br /> 1:1111W GROUNDWATER Soil Boring SS-1 <br /> ❑❑❑ TECHNOLOGY <br /> • Project Chevron-W Bemamrn Holt, Stockton owner Chevron USA Products Company See Site Map <br /> 2905 W Benjamin Holt Qr, Stockton CA 02070 0017 For Boring Location <br /> Location >arol. �!o <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 -12 along planter curb faang--3 of <br /> curb <br /> Casing Dia Length Type <br /> Fill Material Neat Cement Rig/Core CME-75/Sp1rt Spoon <br /> Drill Co SES, Inc _ Method 14ollow Stem Auger/PID <br /> Driller Mike Duffy Log By Jason Fedota bate 08/20/94 Permit <br /> Checked By Ed Simons License No RG#4422 <br /> ` ° Description <br /> y.. 0 E al o a ar U <br /> a.- 0. U Q O <br /> v n. 0. E # v �_J m (Color, Texture, Structure) <br /> O`er m ° m N Trace t 10%, Little 10% to 20%, Some 20% to 35X, And 35% to 50% <br /> to m x in <br /> _2 <br /> 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 5 Gray silty fine SAND (damp, no hydrocarbon odor) <br /> sM <br /> 8 Light gray medium SAND (speckled black, rounded, moderately to well <br /> -90% quartz) <br /> 10 40 SB-1 s <br /> -10 a <br /> 11 SP <br /> 12 <br /> 14 (grades to silty sand) <br /> 5M <br /> 200 -15 2 Orange brown/gray mottled silt CLAY (40,60) (moist, strong hydrocarbon <br /> _15 a 9 9 Y Y <br /> 16 g odor, some root casts and trace sand grains) <br /> i8 <br /> CL <br /> Orange brown/gray mottled sandy silty CLAY (20 30,50) (very moist root <br /> 20 2 SS-1 3 casts, slight hydrocarbon odor) <br /> • -20 4X". <br /> 22 5 End of boring Backfilled with neat cement <br /> 24 - <br /> 07/21/1994 Edhtog-mar93 <br /> Page 1 of t <br />