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SECOR <br /> Intem conal Incorporated <br /> Logged By Date Drilled Drilling Contractor Project Name Method/Equipnmt Well Number <br /> WEST ARCO#4932 SPLIT SPOON <br /> CM 3/14/02 HAZMAT STOCKTON,CA HOLLOW STEM AUGER DMW- <br /> See"Legend to Logs"for Boring Surface Groundwater Depth(ft) Total Drive <br /> sampp MM pr <br /> ling method, Diam(in) Elev(ft) $� 30.5 FIRST Depth(ft) wt,(lbs) Dist(in) <br /> classifications and laboratory 8 11.98 TOC T 29 STABILIZED 810 140 30 <br /> tesung methods <br /> Well <br /> Construction o Descnptton <br /> 2" 50/G" 1 <br /> DIAMETER, <br /> 0 020" <br /> SLOTTED 12 2 <br /> SCREEN 12 SAND(SP): dark yellowish brown(10YR4/4),with silt, <br /> 14 fine-grained,medium dense,wet(0,95,5,0) <br /> 80 12 CLAYEY SILT(MEL)-brown(10YR5/3),moderate plasticity,hand, 7 MW <br /> THREADED 18 moist,subangular blocky soil structure(0,0,80,20) @89 <br /> END CAP 26 <br /> 85- <br /> 90- <br /> 95— <br /> The <br /> 59095The substrata descriptions above are generalized representations and based upon visual/manual classification of cuttings and/or <br /> samples obtained during drilling Predominant material types shown on the log may contain different materials and the change from <br /> one predominant material type to another could be different than indicated Descriptions on this log apply only at the specific location <br /> at the time of drilling and may not be representative of subsurface conditions at other locations or times <br /> Project No 77BP.43287.00 0040 Date 5/29/02 PR Log of Well <br /> 4932DMW 1 GPj Approved by <br /> LOG OF BOREHOLE <br /> Figure (sheet 4 of 4) <br />