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RM NO <br /> ALTON GEOSCIENCE, Inc PROJECT No 30-140 DATE DRILLED 4-23-90 BOP-2 <br /> LOG OF EXPLORATORY P-2 <br /> CLIENT Mobil al ration+ <br /> BORING S LOCATION Tr Blvd and Grantline Road Tracy.. CA WELL NO <br /> LOGGED BY M Taylor APPROVED BY AMW-2 <br /> FIELD SKETCH OF BORING LOQTION <br /> r S.4e DRILLING METHOD C M E 75 HOLE DIAM 10 5 <br /> �- - SAMPLER TYPE Split spoon, continuous sampler <br /> CASING DATA Solid 40, PVC, 5'solid, 1 S'pert ,4'diameter <br /> TOP OF CASING ELEVATIQN DRILLER West Hazmat <br /> s 4 WATER LEVEL S 21' <br /> LU i W DATE 7-12-90 <br /> 06 f- w 2 t� -, � TIME 1100 <br /> is Ca 3 o !t DESCRIPTION <br /> 0 <br /> Christy Bax <br /> � <br /> Concrete underlain by clean bacidill <br /> 2 a• sch <br /> -:0 PVC 1 r <br /> 4 Casing = Salty Clay brown, moist, low plasticity <br /> 6 CLr <br /> QSame, becomes saturated <br /> 8 <br /> 10 <br /> Sand brown, saturated,well graded, medium to course grained,some <br /> 12 SW gravels <br /> 14 <br /> 16 a' Same,becomes tine to medium grained <br /> sch 40 <br /> 1g PVC SM Silty sand brown, saturated, low plastiody, some gravels <br /> 020 CL Clay brown,damp. medium plastic <br /> 20 Slot <br /> 22 Total depth 20 feet <br /> 24 <br /> 26 = Stablized water level SZ Water encountered dunng dniltng <br /> 28 Portland Cement Sample submitted for laboratory analysis <br /> 30 © Sand#3 Lonestar <br /> tifti Bentonite Pellets <br />