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• Wright Environmental Services, Inc., Tracy, CA Exploratory Boring Log <br /> Project No. 1117 Boring/Well No. B-2 <br /> Client: SJRR Comm. Date Drilled: October 9, 1997 <br /> Location: Weber Station, Stockton, CA Logger: CMP Well Installed: No <br /> Parcel 5 - Former UST Location Total Depth: 21.5' <br /> Drilling Method: 8" OD Hollowstem Cement Grout Seal: 21.5' to surface <br /> Permit: CSJ PHS-EHD #013916; 013915 <br /> Water Levels: 1st Enc: None Static: -- <br /> Sample Blow Q Depth Borehole <br /> No. Han Count � (ft) L�thoioSY Log Completion <br /> Gravel Surface fill <br /> ML - Sandy SILT, light grayish brown 10YR6/2, slightly plastic, <br /> clay10%, v. f. sand 20-30%, damp, firm. <br /> 5 <br /> B-2(9 _ pushA <br /> 5- V, <br /> ML - Clayey SILT, brown 10YR5/3, low plasticity, fine sand <br /> 10-20% dissem., hard, damp. <br /> 10 <br /> B-2@ 42 Same as above, increse in silt, rootholes and burrows, caliche, <br /> 10' hard, damp. <br /> 15 <br /> B-',2Q 20 24 Sarre as above, moderate odor, stained gray, very stiff, damp. <br /> 15' <br /> Same as above, heavily stained, moderate odor, increasing sand <br /> B-2 20 to 50%, very stiff, damp. <br /> 20' — 24 <br /> SP - SAND, stained gray, fine sand, fines <5%, massive, weak <br /> odor, med. dense, damp. <br /> Bottom of Boring = 21.5 feet <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 /> Reviewed by RG/CEG <br />