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Total depth of boring, 55 ft Diameter of boring, 8 in Date drilled, 11/20/91 <br /> Casing diameters 4 in Length, 55 ft Slot size, 10 <br /> Screen diameter, 4 in Length, 35 ft Material type, PVC <br /> Drilling Company: JCON Exploration Drillers Jim Craig <br /> Method Weds Hollow—stern Auger Fleld Geologist, Claudio <br /> Signature of Registered Professional, <br /> Registration No., ¢3139 State: Calif <br /> DEPTH SAMPLEa P.I.D. UScS DESCRIPTION <br /> WELL <br /> NO. <br /> cc CODE CONST. <br /> a Asphalt <br /> 2 <br /> CL Clay trace silt, black, damp <br /> 4 <br /> S-5 75 0 <br /> ppmv Light alive green, Hard, (orange staining) <br /> 8 <br /> 10 S-10 51 ppmv Silty clay, (black nodules massive) <br /> 12 <br /> 14 <br /> S-15 51 38 ML Sift some clay, light olive green, slightly damp, <br /> ppmv (massive black nodules, slight orange staining) <br /> 15 <br /> 18 <br /> 20 S-20 47 173 <br /> ppmv <br /> (section continues downward) <br /> — �t�ff" LOG OF BORING: B-12/VW-5 PLATE <br /> �� airr.s � r <br /> S—,l Wj—s - ARCO Service Station No. 6100 <br /> 25775 South Patterson Pass 23 <br /> PROJECT NO. 30041-2 ME ND <br /> 0041B9A Tracy, California <br /> E <br />