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SECOR <br /> Intemational lncoEEorafed <br /> =EG <br /> Date Drilled: Drilling Contractor Project Name: Method/Equipment: Well Number: <br /> GREGG CHEVRON#9-0557 DRIVE SAMPLER <br /> 2/9/02 DRILLING STOCKTON,CA HOLLOW STEM AUGER OS-MID <br /> See"Legend to Logs"for Boring Surface Groundwater Depth(ft.): Total Drive Drop <br /> sampling method, Diain.(in.): Elev.(ft.): 35 Depth(ft.): wt.(Ibs.): Dist.(in.): <br /> classifications and laboratory <br /> testing methods 8 11.$3 45.0 140 30 <br /> Well R <br /> Construction c o Description <br /> TRAFFIC I Asphalt. <br /> RATED SANDY SILT(ML):yellowish brown(10YR5/4), very fine-grained sand,dry, <br /> WELL BOX medium dense,slight petroleum odor(0,35,65,0). <br /> b 5 12 <br /> 16 <br /> 20 <br /> a <br /> GROUT <br /> 10 <br /> 10 SILTY SAND(SM):brown(10YR4/3),fine-grained sand,dry,medium dense,no <br /> 17 petroleum odor(0,75,25,0). <br /> 32 <br /> 15 12 SILTY CLAYEY SAND(SM/SC):brown(10YR4/3),fine-grained sand,dry, <br /> 14 medium dense,no petroleum odor(0,55,30,15). <br /> 25 <br /> 20 10 — CLAYEY SILT(OL):olive brown(2.5Y5/3),low plasticity,moist,soft,no <br /> 20 _ petroleum odor(0,0,65,35). <br /> 30 <br /> 9 <br /> BIENTONITE <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 on ific locatio <br /> at the time of drilling and may not be representative of subsurface conditions at other locations or times. D GE <br /> CUFT <br /> • Project No. 77CH.43445.00.0370Date 8/6/02 PR Log eiABLE N <br /> [l -4 <br /> 5570S1.GP3 Figur " No. 6 " <br /> LOG OF BOREHOLE Cid Exp. OOF <br /> SOF CRS-��O <br /> f <br />