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' Drilling Log <br /> GROUNDWATER Soil Boring S8-2 <br /> ❑❑❑ TECHNOLOGY <br /> Proiect Chevron-W Benjamin Holt Stockton Owner Chevron USA Products Company___ See Site Map <br /> ' Location 2905 W Benlamin Holt Or, Stockton CA Pro] No 02070 0017 For Boring Location <br /> Surface Elev Total Hole Depth 215 ft Diameter 6 in COMMENTS <br /> Top of Casing Water Level Initial 18 ft Static <br /> Screen Dia Length Type/Size fo from the SF corner or station <br /> building. <br /> Casing Dia Length Type <br /> Fill Materia! Neat Cement Rig/Core CME-T5/211t Spoon _ <br /> Drill Co SES Inc Method Ho11nw stem ,auger/PID <br /> ' Driller Mike Duffy Log By Jason Fedota Date 06/20/94 Permit <br /> Checked By Ed Simcnis License No R6,04422 <br /> ' o s Description <br /> a s E X u o sn (Color. Texture. Structure) <br /> m o ra <br /> m x j Trace < 10% , Little 10% to 20%. Some 20% to 35%, And 35X to 50% <br /> ' <br /> -2- <br /> 0 Asphalt over base course <br /> Dark brawn-gray clayey sandy SILT (20,30,50) (dry, no hydrocarbon <br /> ' 2 odor) <br /> 4 ML <br /> 5 5B-2 6 <br /> 6 _5 7 <br /> 8 Brown and gray mottled silty CLAY (30,70) (damp, soft, strong <br /> ' hydrocarbon odor) <br /> 10 36 513-2 3 <br /> _t0 5 (grades with green/gray discoloration) <br /> g CL <br /> 12 <br /> ' 14 Brown silty fine SAND (45,55) (moist, very strong hydrocarbon odor) <br /> ' 300 SB-2 5 <br /> 16 -15 g SIM <br /> ' 18 Water Encountered, 06/20/94 1 25pm <br /> Gray silty fine to medium SAND (20,80) (saturated loose, moderate <br /> Sw hydrocarbon odor) <br /> 20 <br /> 30 53-2 z <br /> -20 <br /> --za 3 <br /> s s <br /> 22 End of boring Backfilled with neat cement <br /> 24 <br /> f07/21/1994 hthlog-mar93 Page I of 1 <br />