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Total depth of borings 35 Pt Diameter of borings 8 to Date drilled, 11/22/91 <br /> Casing diameter,_N/ Lengths N/A Slot sizes N/A <br /> Screen diameter, N/A Lengths N/A Material type: N/A <br /> Drilling Companys JCON Exploration Drillers Jim <br /> Method Useds Hollow—stem Auger Field Geologists Claudio <br /> Signature of Registered Professionals <br /> Registration Nos 43139 State, Calif <br /> DEPTH SAMPLE o P.I.D. llSCS DESCRIPTION W� <br /> NO. , CODE CONST. <br /> O Asphalt <br /> 2 <br /> 4 <br /> S-5 39 ppmv CL Clay some silt, dark brown, damp, hard <br /> 6 • • . <br /> 10 S-10 48 0 �� Silt some clay, fight olive green (orange vein <br /> ppmv staining vertical and horizontal) <br /> - 12 - <br /> 14 - <br /> S-15 <br /> 214S-15 42 ppmv (alock nodules) <br /> 2Q S-20 26 ppmv Brown, very stiff, (caliche staining) <br /> (section continues downward) <br /> AWS`/` LOG OF BORING: B-16 PLATE <br /> SAWAW/7A1111"0911111i ARCO Service Station No. 6100 <br /> 25775 South Patterson Pass 33 <br /> PROJECT NO. 30041-2FlLE NO <br /> Tracy, California <br /> 0041613A <br />