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Drilling Log <br /> 7`7W' GROUNDWATER Soil Boring SB-9 <br /> TECHNOLOGY <br /> Prosect Chevron - S. Center Stockton nv owner Chevron USA PrOCucfs ComoaSee Site Map <br /> For Boring L oca Pion <br /> Location 139 South Center St.. Stockton C4 Proi. No. 02070 0068 <br /> Surface Eley. Total Hole Depth 50.5 tt. Diameter 3 314 rr,. COMMENTS.' <br /> Top of Casing Water Level Initial Static 34 ft. <br /> Screen., Dia Length Type/Size <br /> Casing: Die Length Type <br /> Fill Material BentonitelNeat Cement Frig/Core R,no.1131z"SPO-5000n <br /> Drill Co. ,Grego Drilling_ Method Houow-Stem Auger <br /> Driller Rich Log By Brian MCAlOOr Date 2101195 Permit # 7999 <br /> Checked By Ed Simons License No. RG#4422 <br /> � �. <br /> E y 0 <br /> _M Description <br /> S= Oa a U 0 ao U <br /> v a s E s L' or (Color, Texture, Structure) <br /> N m Xtn <br /> Trace < 10%, Little 10% to 20%. Some 20% to 35%. And 35% to 50% <br /> -2 <br /> I <br /> •> 6" concrete over base course. <br /> o°:o'' Silty CLAY (40,60): brown. <br /> 2 <br /> 1 <br /> CL <br /> 4 I Sandy silty CLAY (20.30,50): brown, dry to damp, no hydrocarbon odor, <br /> X56 <br /> 6 12.6 5.5 uc <br /> (grades silty CLAY (30,70)) <br /> 8 <br /> 10 se_g CL <br /> 0.2 I->D;. <br /> 12 <br /> (grades sandy silty CLAY (20,30,50)) <br /> 14 �I <br /> i I I I <br /> 18 Clayey SILT (30,70): grading to sandy silty CLAY (10,20,70): brawn with <br /> 10% white mottling, dry to oam;�, no hydrocarbon odor. <br /> 20 I 156 I I <br /> �I C. -20:' <br /> r � 1 <br /> 22 <br /> 24 -� 1 <br /> II <br /> Page: 1 of 2 <br /> 01/04/180$ h1hin-OEC 9[ <br />