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Wright Environmental Services, Tracy, CA <br /> ' Exploratory Boring Log <br /> Project No 4889 Bonng/Well No B-2 <br /> Client City of Tracy Date Drilled Feb 14, 2003 Well Installed No <br /> Location Waste Water Plant 3900 Holly, Tracy Logger CMP Total Depth <br /> Drilling Method 3" OD GeoProbe Cement Grout Seal 22 ' to Surface <br /> Permit PHS EHD#32663 <br /> • Water Levels 1 st Enc 14' Static 8 6 Q 11 15 <br /> Sample Push °� Depth <br /> No PID (ft} Litholo Lo Borehole <br /> 7 co9Y 9 Completion <br /> Asphalt Pavement <br /> A <br /> � nAA <br /> CL-Silty CLAY, brown 10YR4/3, low-mod plasticity, massive, very stiff, <br /> damp AAA <br /> a " <br /> M ASA <br /> V "ASA <br /> 5 AAA <br /> � <br /> , 0 Same as above, very stiff, damp, contains rootharrs with sand ""AA <br /> disseminated in clay <br /> " <br /> AAA <br /> A"A <br /> A A <br /> 10 <br /> B-112 0 Same as above, slight increase in silt content, stiff, damp to moist,di <br /> 2 inch thick sand bed at 10 feet <br /> AA <br /> AAA <br /> A <br /> A"A <br /> h" <br /> A" <br /> p <br /> 8-214 "�A <br /> ate 0 SP - SAND, brown 10YR5I3, fines<5%, 95% f sand, med dense, <br /> saturated, contains clayey interbeds at 15 feet <br /> AAA <br /> n"A <br /> AAA <br /> 20 <br /> &2-4 <br /> 0 Same, then sharp contact to underlying02Z <br /> CL- Silty CLAY, yellowish brown 10YR5/6, low plasticity, massive, AA"" <br /> stiff, damp "AA <br /> Bottom of Boring =22 feet <br /> Reviewed by RG/CEG <br /> i <br /> f <br />