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1 <br /> Wright Environmental Services, Inc., Tracy, CA <br /> Exploratory Boring Log <br /> Project No. 1117 Boring/Well No. B-2 <br /> Client: SJRR Comm. Date Drilled: October 9, 1997 'I Well Installed: No <br /> Location: Weber Station, Stockton, CA Logger: CMP <br /> Total Depth: 21.5' <br /> Parcel 5 - Former UST Location 1 <br /> (( I Cement Grout Seal: 21.5' to surface <br /> Drilling Method: 8" OD Hollowstem t� <br /> Permit: CSJ PHS EHD #013916; 013915 �l I � 'C� <br /> Water Levels: 1 st Enc: None Static: -- 1I Borehole <br /> Sample Blow E Depth Lithology Log Completion <br /> No. Han Count cn (ft) <br /> Gravel Surface fill <br /> ML - Sandy SILT, light grayish brown 10YR6/2, slightly plastic, <br /> clay-10%, v. I. sand 20-30%, damp, firm. <br /> 5 <br /> B-2 push <br /> 5' <br /> ML - Clayey SILT, brown 10YR5/3, low plasticity, fine sand <br /> 10-20% dissem., hard, damp. <br /> 10 <br /> B-2 4 2 Same as above, increse in silt, rootholes and burrows, caliche, <br /> 10' hard, damp. <br /> 15 <br /> B-2 2 0 2 4 Same as above, moderate odor, stained gray, very stiff, damp. <br /> 1 5' <br /> I Same as above, heavily stained, moderate odor, increasing sand <br />+ 20 to 50%, very stiff, damp. <br /> B-2 <br /> 20' - 24 \ SP - SAND, stained gray, fine sand, fines <5%, massive, weak <br /> i <br /> odor, med. dense, damp. <br /> Bottom of Boring = 21.5 feet <br /> s <br /> Note: Han. refers to the Modified Hanby Field Analytical <br /> Laboratory test which yields a field colormetric qualitative <br /> mesasurement of presence of petroleum hydrocarbons in <br /> parts per million. <br /> i <br /> R <br /> Reviewed by RG/CEG <br />