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Drilling Log <br /> �0® GROUNDWA Pr'* � Soil Boring S6-2 <br /> ❑D❑ TECHNOLO'-Y <br /> Chevron-S. Center, Sr, :kton Owner See Site Map Chevron <br /> Project <br /> Location 139 South Center, S:C::kron, CA Prof.No. 02070 5039 For Boring Location <br /> Surface Elev. Tota: Hole Depth 40.5 ft. Diameter COMMENTS. <br /> Top of Casing Water Level Initial 39 ft. Static <br /> Screen: Dia Length Type/Size <br /> Casing:Dia Leng0i Type <br /> FM Material Rig/Core CME-55/Split Spoon <br /> Drip Co. SES, Inc. Method Hollow Stem Auger/PID <br /> Driller Morris Peterson Log By Bruce Beale Date 05/12/94 Permit # <br /> Checked By Ed Simons License No. RG#4422 <br /> ` Descri tion <br /> t.. E d :' 0 ao p <br /> a p o ,p U <br /> a, a a s a z o a_j W (Color, Texture, Structure) <br /> o`er � m x �' Trace < 10%. Little 10% to 20%. Some 20% to 35%. And 35% to 50% <br /> -2 <br /> 0 2" asphalt over red brick <br /> 2 <br /> 0 <br /> 4 <br /> (grades to light brown silty sandy CLAY (10,30,60) (cuttings) <br /> 8 <br /> �� 0 -1100'' 23 <br /> CL Mottled brown and orange silty sandy CLAY (10,10,80) (moist, no <br /> Sto hydrocarbon odor) <br /> 12 <br /> I , <br /> Tannish brown sandy silty CLAY (10,20,70) root casts (moist, no <br /> 14 g hydrocaroon odor) <br /> SB-2 14 <br /> 0 -15' is <br /> CL <br /> 18 Mottled orange brown and gray silty clay to clayey SILT (irregular <br /> 3 _ patches and streaks of black organic material. (moist, no hydrocarbon <br /> 2� SB-2 9 r. ' odor) <br /> 0 20 <br /> SC <br /> (i • <br /> 22 <br /> CL Olive brown sandy silty CLAY (10,20,70) with root casts and orange yellow <br /> 24 4 �— patches. (moist, no hydrocarbon odor) <br /> 06/09/1994 tithlog-mar93 Page: 1 of 2 <br />