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n�f Drilling Log <br /> GROUNDWATER Solt Boring SB-1 <br /> JLJ TECHNOLOGY <br /> Project Chevron/Stockton owner Chevron USA Products Co See 51te Map <br /> Location 4$E Harding Way, Stockton, CA Prof. No 02070 4995 For BoriV Locetw <br /> Surface Eley Total Hale Depth 515 ft Diameter 8 rn COMMENTS <br /> Top of Casing Water Level Initial Static <br /> Screen.Dia Length Type/Size <br /> Casing: Da Length Type <br /> Fill Material Rig/Core CME-55/S lit Soon <br /> -" "Drill Co SFS Inc Method Hollow Stem Auger/PID <br /> Driller Morns Peterson Log By Bruce Beale Date 12/13/93 Permit <br /> Checked By Ed Sfmonrs License No RG,*4422 <br /> O T H <br /> > �, ° Description <br /> (U «.a °a a o t� <br /> p-- °Q E x a L) w fD-5 to (Color, Texture, Structure) <br /> m ° ¢ n j Trace-< 10%,tittle 10% to 20%, Some 20% to 3S%, And 35% to SOX <br /> m x <br /> -2 <br /> 0 <br /> Drown silty sandy CLAY (5,15,80) (dry, no hydrocarbon odor) <br /> 2 CL <br /> 4 , <br /> Brown silty CLAY (40,60) (moist, no hydrocarbon odor) <br /> 8 <br /> 0 SS-1 12 <br /> -5 20 <br /> 8 <br /> CL (grades gray) <br /> 10 1Q <br /> 0 SB-1 13 <br /> -10 16 <br /> 12 - <br /> 14 - <br /> Brown <br /> 214Brown clayey SILT (40,60) with pale chalky patches, and small rootlet <br /> 81 casts (<Imm) <br /> 0 S6-1 14 <br /> 18 -15 16 I� ML <br /> 1 <br /> 18 <br /> Tan to b,own silty fine SAND (40,60) (moist, no hydrocarbon odor) <br /> 20 17 SM <br /> 0 SS-1 28 <br /> -zQ 33D- A 22 (grades to clayey SILT) <br /> � <br /> SW <br /> 24 <br /> 03ro4/18941,twog-mare3 Page I of 2 <br />