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SECOR <br /> Internanowlincorporated <br /> Logged By Date Dnlled Drilling Contractor Project Name Method/Equipment Well Number <br /> WEST ARCO#4932 SPLIT SPOON <br /> CM 6112102 HAZMAT STOCKTON,CA HOLLOW STEM AUGER DMW. <br /> See"Legend to Logs"for $Dong Surface Groundwater Depth(ft) Total Drive Drop No OF <br /> sampling method, Dram{in) Elev(ft) -7 24 5 FIRST Depth(ft} wt{Ibs) Dist(in) <br /> classifications and laboratory 8 NA T 28 STABILIZED 835 140 30 <br /> testin methods <br /> Well <br /> o <br /> Construction Description <br /> 23 SANDY SILT with CLAY (ML) olive brown(2 5Y4/3),fine-grained sand, 2 <br /> SAND 39 low plasticity,hard,moist,(0,30,55,15) <br /> 50 <br /> 2" 34 4 <br /> SLOTTED 42 SAND(SP) olive brown(2 5Y4/3),with silt,fine-grained,dense,wet <br /> SCREEN 50 (0,90,10,0) <br /> 80 12 SILTY SAND(SM) dark yellowish brown(10YR4/4),with trace clay, <br /> 19 fine-grained sand,very dense, moist (0,60,40,0) <br /> 31 <br /> THREADED <br /> END CAP 28 2 <br /> SAND 25 CLAYEY SILT with SAND (ML) olive brown(2 5Y413),fine-grained <br /> 47 sand moderate plasticity,hard moist 01560 25 <br /> 85 <br /> 90 <br /> 95 <br /> The substrata descriptions above are generalized representations and based upon visualhnanual classification of cuttings and/or <br /> samples obtained dunng drilling Predominant matenal types shown on the log may contain different matenals and the change from <br /> one predominant matenal 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.54932 00 0230 Date 8115/02 PR Log of WellI <br /> 4932DMW3 GPI Approved by <br /> LOG OF BOREHOLE <br /> Figure (sheet 4 of 4) <br />