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Total depth of boring, 87 ft Diameter of boring: 8 in Date drllledi 11/25/91 <br /> • Casing diameter: 4 in Length, 84 ft Slot sizes 10 <br /> Screen diameter, 4 in Lengthy 30 ft Material type: PVC <br /> Drilling Company, JCON Exploration Driller, Jim, Craig <br /> Mathod Useds Hollow—stern Auger Meld Geologist, Claudio <br /> Signature of Registered Professional: <br /> Registration No.: 43139 States Calif <br /> DEPTH SAMPLE P_LD. USCS DESCRIPTION WELL <br /> NO. CODE CONST. <br /> co <br /> Asphalt <br /> 2 <br /> 4 <br /> S-5 24 ppmv CL Clay some silt, black, damp, very stiff <br /> fi : <br /> 8 <br /> s <br /> S-10 30 26 ML Silt some clay, trace fine—grained sand, fine gravel, <br /> 10ppmv olive green, damp (orange staining) <br /> 12 - <br /> _ 14 - 5P Gravelly sand some silt, coarse—grained sand, fine gravel, <br /> S-15 5D 20 olive green dense <br /> ppmv ML Silt some clay, trace fine gravel, light brown, <br /> 16 slightly damp hard <br /> 18 <br /> 20 S-20 46 ppmv (orange staining, massive) <br /> (section continues downward) <br /> LOG OF BORING: B-17/VW-8 PLATE <br /> SSS/IVArmin ARCO Service Station No. 6100 <br /> 25775 South Patterson Pass 35 <br /> PROJECT N0. 30041-2 RLE NO Tracy, Callfornla <br /> OD41B14A <br />