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SECOR <br /> Internatwnal Incorporated <br /> Logged By Date Drilled Drilling Contractor Project Name Method/Equipment Well Number <br /> CHEVRON 9-9840 SPLIT SPOON <br /> EG 4/12/02 WATERMARK STOCKTON,CA HOLLOW STEM AUGER MW-5— <br /> See"Legend to Logs"for Boring Surface Groundwater Depth(ft) Total Dnve Drop <br /> same ing method, Diam(in) Elev(ft) 67 FIRST Depth(ft) wt(Ibs) Dist(in) <br /> classifications and laboratory <br /> testiniz methods 8 3256 750 140 30 <br /> " z <br /> Well <br /> x a Description <br /> Construction y a <br /> rri <br /> 15 SILTY CLAY(CL) dark yellowish brown(10YR4/4),low 0 <br /> 19 plasticity,stiff,moist,no odor,calcium deposits(0,5,40,55) <br /> a 4 26 <br /> v v <br /> a a 55 6 SANDY SILT(ML) dark yellowish brown(10YR4/4),fine-grained 0 <br /> 10 sand,medium stiff,moist,no odor(0,30,70,0) <br /> BENTONITT 13 <br /> SEAL <br /> SAND <br /> SCREEN 60 7 SILTY CLAY(CL) brown(10YR5/3),low plasticity,medium stiff, 0 <br /> INTERVAL I 1 moist,no odor(0,0,40,60) <br /> 13 <br /> 65 15 CLAYEY SILT(ML) dark yellowish brown(10YR4/4),low 0 MW5 <br /> 24 plasticity,stiff,moist,no odor(0,0,60,40) @65' <br /> 28 <br /> 70 8 Grades to dark yellowish brown(10YR4/4),medium stiff(0,5,75,20) 0 <br /> 16 <br /> 23 <br /> The 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 77CH 43580.00.0203 Date 6117/02 PR Log of Well <br /> 99840MW5 GP7 Figure <br /> LOG OF BOREHOLE <br /> (sheet 3 of 4) <br />