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r3 to f = xL <br /> s <br /> USTEC STRATIGRAPHIC LOG NUMBER B---25 (VEW---5) <br /> j PSGe 1 of 3 <br /> c+a <br /> PROJECT LOC Stockton,CA. PROJECT NO 90054.03 <br /> START DATE 11/12/91 FINISH DATE 11/f2/9f <br /> GRILLING COMPANY Nestech RIG TYPE Nobrle 8-61 <br /> w <br /> DRILLING METHOD <br /> 8"HSA M.P.ELEVATION NA <br /> DATUM NA GROUNDWATER ELEVATION NA <br /> FIELD GEOLOGIST 2.021er/J.0'Rourke _ REVIENED BYM Roche <br /> � U <br /> � LITHOLOGIC DESCRIPTION c J biEll DIAGRAM <br /> G -ZFx- <br /> m Q J <br /> SANDY SILT (ML);trace of clay:dark yellowish brown 110 YR — <br /> 4/2),below plastic limit,stiff;light cementation,no odors <br /> 35 <br /> 4,4 — <br /> increase in cementation, caliche pebbles' — <br /> p <br /> 6.2 CLAYEY SILT IML);trace of sand;dark yellowish brown (10 <br /> I 1 <br /> YR 4/2)at PL,very stiff,no cdors,moderate cementation t 1 I I I I - <br /> -.. IllIII — <br /> Illlll — <br /> Illlll — <br /> illlll = <br /> III — <br /> 5 4.4 <br /> i ,v, ililil — <br /> increase in sand noted at 48 feet E I I <br /> I ,Illli <br /> Ilillll = <br /> ' 0 5.0 Illllti = <br /> IllIII = <br /> Illili <br /> llilll = <br /> less sand noted at 53 feet <br /> IllIII —_ <br /> 5 5.8 Nib. — <br /> very little return-log from augers I I I — <br /> IIIII � - <br /> increase in sand noted at 58 feet,no returns-ream for 1 I I I I I <br /> returns I 1 I — <br /> llllll — <br /> 0 <br /> " NOTES: 6 inches of concrete and 6 inches of base coarse encountered <br /> at the surface. <br />