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r} <br /> w <br /> LOG OF EXPLORATORY BORING <br /> • PROJECT NUMBER 20805-140.010 WELL NO AS-2 <br /> PROJECT NAME ARCO *548, Stockton PAGE 3 of 4 <br /> BY Pat Jlmison DATE 10/27/98 SURFACE ELEVATION <br /> U <br /> FID PENETRA- RECOVERY ROUND DEPTH J a <br /> READING TIONWATER IN a ¢ WELL <br /> (ppm) (blows/8') (it/ft1 LEVELS FEET ¢ 00 DESCRIPTION DETAIL <br /> N 2 U <br /> r <br /> .w <br /> J <br /> 3200 12 14/15 SANDY SILT (ML), dark gray (10YR, 4/1) 80% fines <br /> 22 20% fine grained sand small irregular caliche deposits <br /> 30 1/8-1/2 , bluish discoloration damp strong odor <br /> 100 28 12/15 45 SANDY SILT (ML), dark brown (10YR 4/3) 70% fines <br /> 18 30% fine grained sand bluish discoloration damp <br /> 38 strong odor <br /> • <br /> 60 28 14/15 50 SILT (ML), dark brown (10YR 3/3), 100% fines damp <br /> 38 no odor <br /> 50 <br /> 270 30 10/15 55 SANDY SILT (ML), dark yellowish brown (10YR, 4/6) <br /> 50/55' 7C% fines, 30% fine sand thin black veins of manganese <br /> oxide damp no odor <br /> 60 <br /> . � REMARKS <br /> EMCON <br />