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Wright Environmental Services, Tracy, CA Exploratory Boring Log <br /> Project No 4509-T Boring/Well No B-1 Well Installed No <br /> Ghent City of Tracy Date Drilled Feb 5, 2003 Total Depth <br /> Location Delta Disposal 99 6th Street, Tracy Logger CMP Cement Grout Seal 25 'to Surface <br /> Drilling Method 3" OD GeoProbe <br /> . Permit PHS EHD#32661 <br /> Water Levels 1st Enc 16' @ 09 18 Static NM <br /> Sample Push d Depth Borehole <br /> No PID M (ft) Borehole Log <br /> Completion <br /> Asphalt Pavement AAAA <br /> AA <br /> AAAA <br /> ML- Sandy SILT, brown 10YR514, nonplastic, massive, firm, damp ^„^ <br /> AA <br /> AAA <br /> AAAA <br /> AAA <br /> 0 5 Same as above, firm, damp ^"^A <br /> AA <br /> A^A <br /> AAA <br /> AAA <br /> A^ <br /> AM1 <br /> AAA <br /> all 0 10 CL-Sandy CLAY, brown 10YR413, low plasticity, f sand 30%, ^AAA <br /> crudely bedded, stiff, damp AAAA <br /> AAA <br /> AAA <br /> A^ <br /> A"^ <br /> AAAA <br /> pis 0 15 SW- SAND, vangated, fines <5%, f - crs sand 95%, massive, ^"A^ <br /> med dense, saturated by 16 feet Borehole caves to 15 feet after "AAA <br /> poush to 16 feet ^A"A <br /> AAA <br /> AAA <br /> AA <br /> B-1-4 ^^^ <br /> 1021 0 20 CL- Sandy CLAY, dark yellowish brown 10YR4i4, low plasticity, A"^" <br /> f sand 40%, locally up to 60%, stiff, saturated, increasing clay "^"^ <br /> to 21 feet <br /> 0 ^A^A <br /> 25 Sarre as above, f sand 40%, massive saturated at 25 feet <br /> Bottom of Boring = 25 feet <br /> Reviewed by RG/CEG <br /> z <br /> s. <br />