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r• <br /> Total depth of borings 80 ft Diameter of borings S in Date drilled. 11/21/91 <br /> _ <br /> Casing diameter: 4 in Length, 75 ft Slot size, 10 <br /> • Soreen dlameter, 4 in Lengthy 30 ft Material type. PVC <br /> Drilling Companys JCON Exploration Drillers Jim <br /> Method Mods Hallow—stem Auger Field Geologist, Claudia <br /> Signature of Registered Professional, <br /> Registration No.& 43139 States Calif <br /> t <br /> SAMPLE USGS DESCRIPTION WELL <br /> DEPTH NO. m P.I.D. CODE CONST <br /> 1 <br /> 0 Asphalt <br /> CL Clay, olive green, damp <br /> 2 <br /> I 4 <br /> S-5 16 P56 Black, stiff • . <br /> fi <br />►� 8 <br /> SEIt trace clay, light alive green, slightly damp, <br /> 10 S-10 37 pPmv SAL hard, (orange staining, horizontally <br /> and vertically) <br /> 12 - <br /> 14 - <br /> S-15 <br /> 2145-15 64 PP0 Trace fine—grained sand <br /> 16 <br /> I <br /> 18 <br /> 20 5-20 53 PPm� (caliche in soil sample) <br /> 1 <br /> (section continues downward) -JE <br /> 1AWAWAk/r` LOG OF BORING, B-1+4/VW-7 PLATE <br /> ar ,f <br /> awe r <br /> ARCO Service Station No, 6100 <br /> 25775 South Patterson Pass 28 <br /> 11 NO Tracy, California <br /> PROJECT NO. 30041-2 O041011 <br /> 1 <br />