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Drilling Log <br /> ❑❑ GROUNDWATEF'' Soil Boring SB-4 <br /> ❑❑❑ T ECHNOLO-7 Y <br /> Chevron-S. Center, S-.�kton ;:hevron See Site Map <br /> Prosect Owner <br /> Location 139 South Center, S---kton, CA Proj.No. 02070 5039 For Baring Location <br /> Surface Elev. Total Hole Depth 43.5 ft. Diameter COMMENTS <br /> Top of Casing Wate: Level Initial Static <br /> Screen Dia Length Type/Size <br /> Casing: Dia Leneih Type <br /> Fill Material Rig/Core CME-55/521it Spoon <br /> Drill Co. SES, Inc. Method Hollow Stem Aucer/PID <br /> Driller Morris Peterson Log Sy Bruce Beale Date 05/13/94 Permit # <br /> Checked By Ed Simonis _ License No. RG#4422 <br /> Description <br /> : > m <br /> a� ..a a E -.o v <br /> o" a a m J� in (Color. Texture. Structure) <br /> in m x to Trace < 10%. Little 10% to 20%. Some 20% to 35%. And 35% to 50% <br /> -2 <br /> 2" asphait over 2" concrete <br /> i 1 Brown micaceous silty fine SAND (moist, no hydrocarbon odor) <br /> l i• SM <br /> -! 1. <br /> i <br /> 4 3 i i - <br /> S5* 3 Dark brown silty sandy pebbly CLAY (moist, no hydrocarbon odor) <br /> 0 -5' 4 Y Y <br /> 6 CL <br /> 8 Brown micaceous silty fine SAND <br /> 2 I SM <br /> ,O <br /> 58-4 2 i. <br /> o -10' 2 Dark gray to brown silty sandy pebbly CLAY (fill) (moist, moderate <br /> hydrocarbon odor) <br /> 12 CL <br /> 14 — <br /> SB-4 s <br /> 3 -15' 1 (grades greenish gray) <br /> 16 k.• <br /> • CL <br /> 18 <br /> s SS-4 2 !' Brown-g.,ay pebbly clayey silty fine SAND (5,10,20,65) (moist, moderate <br /> 20 -20' 7 i, hydrocarbon odor) <br /> i ; <br /> 22 � SM <br /> 24 5 <br /> 1 <br /> 06/09/1994 Gthlog-mar93 Page: 1 of 2 <br />