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SECOR <br /> Interna tzonal Incorporated <br /> Logged By Date Drilled Drilling Contractor Project Name Method/Equipment Well Number <br /> GREGG ARCO#4493 HOLLOW STEM AUGER <br /> BH 5/9/02 DRILLING STOCKTON,CA SPLITSPOON W-10 <br /> See"Legend to Logs"for Boring Surface Groundwater Depth(ft) Total Drive Drop <br /> sampling method, Dram(in) Elev(ft) 17 FIRST <br /> Depth(ft) wt(lbs) Dist(in) <br /> classifications and laboratory <br /> test10 545 140 30 <br /> m methods <br /> � O <br /> w o z <br /> Well Description <br /> Construction a °' A <br /> Color change to dark brown(10YR3/3),saturated <br /> SILTY CLAY(CL) brown(10YR5/3),firm,moist,low plasticity,no <br /> hydrocarbon odor(0,5,35,60) <br /> 0 <br /> SILTY CLAY(CL). gray(2 5Y4/1),hard,damp,no hydrocarbon odor <br /> -,(0,5,35,60 <br /> 55 <br /> 60- <br /> 65- <br /> 70— <br /> The <br /> 06570The substrata descriptions above are generalized representations and based upon visual/manual classification of cuttings and/or <br /> samples obtained dunng 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 43036 00 0320 Date 5/31/02 PR Log of Well <br /> 4493MW LO GPJ Approved by <br /> LOG OF BOREHOLE <br /> Figure (sheet 3 of 3) <br />