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l <br /> • Wright Environmental Services, Inc., Tracy, CA Exploratory Boring Log <br /> Project No 4070 Boring/Well No B-5 <br /> Client M&M Auto Date Drilled July 29, 1997 Well Installed No <br /> Location 60 E 10th St , Tracy, CA Logger CMP Total Depth 15' <br /> Drilling Method 8° OD Hollowstem Cement Grout Seal 15' to surface <br /> Permit SJC-PHS#013175 <br /> Water Levels 1st Enc 12'f Static -- <br /> Sample Blow Depth Borehole <br /> No OV Count (ft) Lithology Log Completion <br /> rn <br /> Gravel FILL <br /> CL - Silty CLAY, dark brown 10YR3/3, low to medium <br /> plasticity, 5% very fine sand dissem , drills firm, damp <br /> 136 push e <br /> w <br /> 05 500 psi <br /> 5 Same as above, drills firm-stiff, damp <br /> w•w <br /> B s push a CL - Sandy CLAY, dark yellowish brown 10YR4/6, low to "•"• <br /> ii, is Soo psi 10 medium plasticity, faintly bedded, very fine sand to 25%, <br /> firm, moist <br /> .w. <br /> 86 P-110 SP-SW - SAND, varigated, fine to coarse sand to 90%, silt and <br /> a is 500 psi <br /> 15 clay to 10%, massive, contains rare thin clay beds at 15 feet, <br /> overall saturated, drills med dense <br /> Bottom of Boring = 15 feet <br /> Reviewed by RG/CEG <br />