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Wright Environmental Services, Tracy, CA Exploratory Boring Log <br /> Project No.4509-T Boring/Well No. B-3 Well Installed: No <br /> Client: City of Tracy Date Drilled: Feb. 5, 2003 Total Depth: <br /> Location: Delta Disposal 99 6th Street,Tracy Logger: CMP Cement Grout Seal: 32'to Surface <br /> Drilling Method: 3"OD GeoProbe <br /> Permit: PHS EHD#32661 <br /> Water Levels: 1st Enc:16'@ 11:30 Static: NM <br /> Sample Push o. Depth Borehole <br /> No. PID E eft) Lithology Log Completion <br /> cn <br /> Concrete <br /> CL-Sandy CLAY, brown 10YR5/3, low plasticity,f.sand 20%, <br /> massive,stiff,damp. <br /> @61 0 5 Same as above,stiff,damp. <br /> B-3-2 <br /> @11• 0 10 Same as above,f.sand 25%,stiff,damp. <br /> B-3-3 <br /> @16• 165 15 SW-SAND,stained gray,fines<5%,f.crs.sand 95%, massive, <br /> very dense,saturated. <br /> @21' 74 20 SC-Clayey SAND,dark yellowish brown 10YR4/4, low plasticity, <br /> f.sand 55%,massive, med.dense, moist;no odor or stain. <br /> @255 20 25 CL-Sandy CLAY,dark yellowish brown 10YR5/6,low plasticity, <br /> massive,stiff,damp. <br /> 30 <br /> B_3_6CL-Silty CLAY,yellowish brown 10YR5/6, low plasticity,f.sand<10%, <br /> @32' 3 massive,stiff,damp. <br /> Bottom of Boring=32 feet <br /> Reviewed by RG/CEG <br />