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Wright Environmental Services, Tracy, CA <br /> Protect No 4183 Bonn ExPloratory Boring Log <br /> Client City of Tracy Date pnll do Feb 16 , 2003 Well Installed No <br /> Location Cage n Play, 68 E 11th St , Tracy Logger CMP Continuously cored <br /> Drilling Method 3" OD GeoProbe Total Depth 20' <br /> Peet PHS EHD#32662 Cement Grout Seal 20'to Surface <br /> . Water Levels 1 st Enc 11 @ 09 20 Static 9 7' @ 10 32 <br /> Sample Core °' Depth <br /> No PiD � Lithology Log Borehole <br /> Completion <br /> Asphalt pavement section <br /> &1"1 0 <br /> 04 <br /> GM - Silty GRAVEL, brown 10YR513 FILL, f-crs sand, <br /> med dense and damp Appears as Class II with pea gravel <br /> 5 <br /> e-s z <br /> as 0 2 Same as above, damp ^�^ <br /> " <br /> " n <br /> 51.3 •• " <br /> a1z 65 3 10 Driller calls change at 11 feet ^"A" <br /> ^" <br /> CL- Sandy CLAY, stained gray, low plasticity, f sand 20%, <br /> massive, stiff, saturated at 11 feet <br /> 121 <br /> 1s 2 4 <br /> 15 Color change from stained to yellowish brown <br /> CL-Sandy CLAY, yellowish brown 10YR516, low-mod plasticity, A"^" <br /> massive, stiff grades to 1S underlying <br /> Y 9 <br /> zv 0 5 <br /> ^^" <br /> SP- SAND, dark yellowish brown 10YR4/4, fines 5-10% decrease "^^" <br /> 20 with depth, f sand 90-95%, very clean, local crude bedding and beds "^ <br /> of med sand 2 inches thick at 17-18 feet, very dense, saturated <br /> Driller calls refusal at 20 feet <br /> Bottom of Boring = 20 feet <br /> Reviewed by RG/CEG <br />