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Wil,ght Environmental Services, Inc., Tracy, CA <br /> Exploratory Boring Log <br /> Project No 4529 BonnglWell No B-1 Well Installed No <br /> ,Client City of Tracy Date Dulled Feb 10, 2003 Total Depth 21 ' <br /> Location 560 Tracy Blvd , Tracy, CA Logger CMP Cement Grout Seal 21 ' to surface <br /> Dnlling Method 3" OD GeoProbe <br /> Permit PHS EHD 32664 <br /> Water Levels 1 st Enc 12'±Static 13 8 @ 10 10 <br /> Sample Blow 2 Depth <br /> No PID Countrri Oft) Lithology Log Borehole <br /> Completion <br /> (Ppm) Concrete pavement <br /> CL- Silty CLAY, brown 10YR5/3, low plasticity, f sand <55, sett 30%, <br /> massive, firm, damp <br /> p FFF <br /> W' 0 pus 5 Same as above, firm, damp <br /> FFA" <br /> F F <br /> A F <br /> F F <br /> A F <br /> A F <br /> A <br /> "F A <br /> FF <br /> " <br /> W-2 <br /> 0 Pus 10 CL- Sandy CLAY, brown 10YR5/3, low plasticity, f sand 20% dissem ,11 ""F^ <br /> massive, stiff, damp, contains very moist sandy lenses at 10 5 feet <br /> FAFF <br /> F A <br /> FAF <br /> A" <br /> FA <br /> Driller calls change at 13-14 feet <br /> ais 0 pus <br /> �mg15 SP-SAND, yellowish brown 10YR5/4, fines nonplastic and <5%, "F"A <br /> f sand 85%, massive, few ill-defined laminae, med dense, saturated <br /> F"A <br /> "A F <br /> FAw <br /> F"A <br /> B 14 Same as above, loose to med dense, saturated, then sharp contact <br /> 0 push 20 <br /> CL- Silty CLAY, yellowish brown 10YR5/4, low plasticity, f sand <5%, <br /> massive, firm, damp <br /> Bottom of Boring =21 feet <br /> Reviewed by RG/CEG <br />