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Total depth of borings 58 ft Diameter of boring: 8 in Date drilled: 10/9/91 <br /> Caging diameter: 4 in Length, 58 ft 45`315 031 <br /> Slat size: 6°-45 a5 <br /> Screen diameter, 4 in Length: 30 ft Material type: PVC <br /> Drilling Company, JCON Exploration Drillers Jim Gre <br /> Method Used: Hollow-stern Auger _ _ Field Geolaglsts Richard Alden <br /> Signature of Registered Professionals <br /> Registration Nog 43139 States Calif <br /> DEPTH SAMPLE c P.I.D. USCS DESCRIPTION Wim` <br /> NO. m -----CODE <br /> CONST. <br /> Q Asphalt <br /> 2 <br /> 4 <br /> S-5 13 205 ML Silt trace clay, olive gray mottled with pale olive, <br /> 6 ppmv damp, stiff <br /> 8 <br /> _ 10 - <br /> S-10 40 214 Silt trace gravel, pale olive with dark yellowish <br /> ppmv ML orange root structures slight€y damp, <br /> 12 hard calcite concretions <br /> 14 <br /> S-15 29 178 Sm Sand some sift trace fine gravel, fine-grained <br /> 15 ppmv olive gray to black medium dense <br /> 18 <br /> - 20 - <br /> S-20 31 212 ML Silt, pole o4ve, mottled with dark greenish yellow, <br /> ppmv dark yellowish orange root structures <br /> (section continues downward) <br /> AWrALIAM LOG OF BORING: B-10/VW-2 PLATE <br /> iA—/7irmu ARCO Servlce Statlon No. 6100 <br /> RLE25775 South Patterson Pass 17 <br /> 04 <br /> 0041B7A <br /> PROJECT NO. 30041-2 N0 Tracy, Calitornla <br />