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MEMO N <br /> s D" I SNO.E PI.D. CODE DESCRIPTION WELL <br /> CONST. <br /> 20 -- <br /> S-20 33 ppmv ML Silt, moderate brown, cry non—plastic. hard. <br /> I 22 <br /> 24— •. . <br /> S-25 35 0 . <br /> 26 ppmv. . <br /> 28 I I' <br /> 30 <br /> 5-30 m 36 Clayey silt. dark <br /> ■ ppmv Y yellowish brown, low plasticity. - .. '•� <br /> 3 <br /> 2 <br /> I I• •I � <br /> 34 <br /> 0 <br /> 36 - 5-35 36 ppmv Moderate yellowish brown. <br /> 38 I... . .' <br /> .. I <br /> S-40 34 <br /> ppmv <br /> 44 <br /> 46 S-45 36 0PPM .: ••'; ppmv �: • , <br /> Boring terminated at 46-1/2 feet. <br /> Boring backfilled with cement/bentonite slurry. <br /> AMAW !_nr OF BORING: B-16 PLATE <br /> t—�IWAPWU ARCO Service Station No. 548 <br /> 1612 Hammer Lane j 7 <br /> PROJECT NO. 30004 0004i4B Stockton, California I <br />