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Total depth of boring, 87 ft Diameter of boring, S in Date drilled, 11/25/91 <br /> Casing diameter, 4 in Length, 84 ft Slat size, 10 <br /> Screen diameter, 4 in Length, 30 ft Material types PVC <br /> Drilling Company, XON Exploration Driller, Jim Craig <br /> Method Used. Hollow-stern Auger Field Geologist, Claudio <br /> Signature of Registered Professional, <br /> Registration Nos 43139 States Calif <br /> DEPS <br /> SAMPLE P.I.D. USCS DESCRIPTION <br /> NO. m CODE CONST. <br /> 0 Asphalt <br /> 2 <br /> i <br /> 4 <br /> S-5 24 ppmv CL Clay some silt, black, damp, very stiff •: <br /> 8 , <br /> 26 ML Silt some clay, trace fine—grained sand, fine gravel, <br /> _ 10 - S-1Q 30 ppmv olive green, damp, (orange staining) <br /> 12 <br /> 14 Gravelly sand some silt, coarse—grained sand, fine gravel, <br /> 20 5P olive green, dense <br /> S-15 50 ppmv <br /> I ML Silt some clay, trace fine gravel, light brown, <br /> 16 slightly damp, hard <br /> 18 <br /> I20 S-20 46 ppmv (orange staining, massive) <br /> (section continues downward) <br /> I� ARCO Service Station No. 5100AW` rAn LOG OF BORINGS B-17/VW-8 PLATE <br /> `�...r`AM�ffn—'ffl ��w <br /> 25775 South Patterson Pass 35 <br /> RLE NO <br /> PROJECT NO. 30041-2 0041814A Tracy, Catlfornla <br />