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LOG OF EXPLORATORY BORING <br /> >. PROJECT NUMBER 20805-140.010 WELL NO AS-1 <br /> PROJECT NAME ARCO #548, Stockton PAGE 3 of 4 <br /> BY Pat Jfmison DATE 10/28/88 SURFACE ELEVATION <br /> U <br /> U7 <br /> FID PENETRA- ROUND DEPTH a� <br /> READING TION RECOVERY WATER INWELL <br /> (PPM) (blows/6') (ft/ft) LEVELS FEET a oo DESCRIPTION DETAIL <br /> X0 <br /> 40 18 15/15 SILT (ML), dark grayish brown (10YR, 4/2) 95% fines <br /> 38 5% sand, caliche pieces - 1/8 diameter blush gray <br /> 50 discoloration, wet, mild odor <br /> 31 18 15/15 45- 1SANDY SILT (ML), very dark grayish brown (10YR, <br /> 36 3/2)/ 70% fines 30% fine sand slight iron oxide <br /> 50 discoloration, wet, no odor <br /> 0 23 13/15 50 SAND (SW), gray (10YR, 5/1) 20% fine, 55% medium, 25% <br /> 33 coarse sand, wet, no odor <br /> 50 <br /> 0 24 04/15 55 SANDY SILT (ML), dark yellowish brown (lOYR, 4/4), <br /> 50/5" 80% fines 20% fine sand, damp no odor <br /> BO <br /> REMARKS <br /> EMCON <br />