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LOG OF EXPLORATORY BORING <br /> • PROJECT NUMBER 20805-140.010 WELL NO AS-2 <br /> PROJECT NAME ARCO #548, Stockton PAGE 2 of 4 <br /> BY Pet Jimison DATE 10/27/98 SURFACE ELEVATION <br /> v <br /> FID PENETRA- RECOVERY GROUND DEPTH L a <br /> READING TION WATER IN pESCRIPTION WELL <br /> iPPmi flows/t3'7 (ft/ft) LEVELS FEET a x 0 DETAIL <br /> a <br /> 50 12 12/15 SAND (SP), yellowish brown (10YR, 5/6) 10% fines, 90% <br /> 18 fine sand damp, strong odor <br /> 20 <br /> 900 12 15/15 25 SANDY SILT (ML), dark yellowish brown (10YR, 4/4) <br /> 23 80% fines 20% fine grained sand bluish discoloration <br /> 30 damp strong odor <br /> i <br /> 2000 4 15/15 30- <br /> 5 i°127�8B DTW = 30 32 at 11 59 <br /> 7 SANDY SILT (ML), dark yellowish brown (10YR 4/4) <br /> 80% fines, 20% fine sand bluish discoloration damp, <br /> strong odor <br /> 13,900 23 15/15 35 SANDY SILT (ML), dark yellowish brown (IOYR, 4/4) <br /> 33 70% fines 30% fine sand small irregular caliche <br /> 40 deposits -1/8 ' bluish discoloration strong odor <br /> 40 <br /> REMARKS <br /> EMCON <br />