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Total depth of borlrMp 69 ft Diameter of boring,8 25 in Date drilled. 3/3/92 <br /> . Casing diameters 2 in Lengtltr 49 ft Slot size. 0 010 <br /> Soreen diameters 2 in length. 20 ft Material type. PVC <br /> Drilling ComPanr, Woodward Drilling Co Drillers Erik __Robert _ <br /> Method Usedi Hollow--stem Auger F Ge ioglsts Richard Alden <br /> Signature of Registered Professional, <br /> Registration Nos 4313 S tee Calif <br /> DUTH SAMPLE P.I.D. uSCS DESCRIPTION WELL <br /> NO. S CODE COROT. <br /> 0 <br /> 0 25 ft asphalt <br /> 0 75 ft ciccreate <br /> 0 50 ft sand fill <br /> 2 <br /> CL Clay grayish black slightly damp , <br /> 4 <br /> 6 S-6 22 ppmv ML Silt •+ <br /> 8 - <br /> 14 <br /> 5-11 25 2 Silt, moderate yellowish brown mottled with olive gray, <br /> ppmv slightly damp, very stiff <br /> 12 - <br /> 14 - <br /> 15 <br /> 21416 S--16 25 ppmv Silt as at 1D ft , less mottled with olive gray <br /> 18 <br /> 20 <br /> S-21 16 ppmv Silt pale yellowisn brown slightly damn, stiff <br /> (section Continues downward) <br /> ------------- <br /> • 0—/`/AM LOG OF BORING: B-8/MW-7 PLATE <br /> Unocal Service Station No. 6981 <br /> 4707 Pacific Avenue <br /> PROJECT NO. 38032 8032G6A Stockton, California <br />