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Wright Environmental Services, '-c., Tracy, CA Exploratory Boring Log <br /> Project No. 4529 Boring/Well No. B%-!PW Well Installed: No <br /> Client: City of Tracy Date Drilled: Feb. 10, 2003 Total Depth: 21 ' <br /> Location: 560 Tracy Blvd., Tracy, CA Logger. CMP Cement Grout Seal: 21 'to surface <br /> Drilling Method: 3" OD GeoProbe <br /> Permit: PHS EHD 32664 <br /> Water Levels: 1 st Enc: 13'±Static: NM <br /> Sample Blow01 Depth <br /> No. OV Count €` �{�� Lithology Log Borehole <br /> w Completion <br /> Concrete pavement <br /> ML-Clayey SILT, dark yellowish brown 10YR314, low plasticity, AAA" <br /> f. sand 355, faint bedding, firm, damp. <br /> AAw <br /> AAw <br /> 0 0 push Same as above, firm, damp. "A"w <br /> AAA <br /> AAA <br /> AAA <br /> ssz 0 <br /> all. push 10 CL-Silty CLAY, very dark grayish brown 10YR3/2, possible stain, <br /> low plasticity, f. sand <5%, massive, firm, damp; becomes very moist <br /> at 11 feet. <br /> A" <br /> AA <br /> A" <br /> 30 Push 15 CL-SC- Sandy CLAY to Clayey SAND, stained gray, low plasticity, AA"" <br /> sandy lenses interbedded in clayey strata, stiff overall, sandy lenses <br /> saturated, clayey strata damp. <br /> AA <br /> A" <br /> Same as above, stain fades at 19-19.5 feet to yellowish brown 10YR5/6. "AAA <br /> 8s-o <br /> 021 4 pust 0 AAAA <br /> CL-Silty CLAY, yellowish brown 10YR516, low plasticity, no sand, <br /> massive, firm, damp to moist. <br /> Bottom of Boring =21 feet, <br /> sheen on water, appears as <br /> emulsified oil(?). <br /> Reviewed by RG/CEG <br />