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SECOR <br /> Ince rnati on al Incorporated <br /> Logged By: Date Drilled: Drilling Contractor Project Name: Method/Equipment: Well Number: <br /> GREGG CHEVRON#9-0557 DRIVE SAMPLER <br /> EG 2/9/02 DRILLING STOCKTON,CA HOLLOW STEM AUGER OS-XS/W <br /> See"Legend to Logs"for Boring Surface Groundwater Depth(ft.): Total Drive Drop <br /> sampling method, Diam.(in.): Elev.(ft.): �-z 35 Depth(ft.): wt.(Ibs,): Dist.(in.): <br /> classifications and laboratory 8 11,83 45.0 140 30 <br /> testingmethods <br /> ^ o - <br /> Well v <br /> 3 Description <br /> Construction � o <br /> U � <br /> Q � . <br /> tV <br /> SEAL 20 — CLAYEY SILT(OL):dark grayish brown(2.5Y4/2),low plasticity,moist,soft,no <br /> 32 _ petroleum odor(0,0,60,40). <br /> SAND <br /> OZONE <br /> 30 24 SILTY CLAY(CI.,):dark grayish brown(2.5Y4/2),low plasticity,moist,medium <br /> BENTONITE. 30 stiff,no petroleum odor(0,0,40,60). <br /> SEAT., 42 <br /> 35 12 SAND(SP):gray(10YR5/2),medium-grained,wet,dense,no petroleum odor <br /> 24 (0,90;5,5). <br /> 36 <br /> 40 10 _ CLAYEY SILT(OL):gray(2.5Y5/1),low plasticity,wet,soft,petroleum odor <br /> SAND 10 _ (0,0,80,20): <br /> 32. <br /> OZONE <br /> 45 <br /> 9 SILTY CLAY(CL):dark gray(2.5Y4/1),medium plasticity,wet,soft,petroleum <br /> 10 odor(0,0,30,70). <br /> 12 <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 ' 'c locatio <br /> at the time of drilling and may not be representative of subsurface conditions at other'locations or times. ��U GSC <br /> SCO.1`lProject No. 77CH.43445.00.0370Date 8/6/02 PR Log OfAM; GABLE <br /> 5570SJ.GPJ Figure r No. ti ,1 k7 <br /> LOG OF BOREHOLE tf Cxp. I <br />