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i- <br /> ALTON GEOSCIENCE, Inc, PROJECT NO, 30-140 DATE DRILLED x•23BOR�fG NO..90 P-2 <br /> LOG OF EXPLORATORY CLIENT Mobil Oil Corporation <br /> WELL NO. <br /> BORING LOCATION Tracy Blvd and Grantline Road Tracy CA <br /> LOGGED BY M.Taylor APPROVED BY AMW-2 <br /> FIELD SKETCH OF BORING LOCATION 11 <br /> r S , DRILLING METHOD C.M.E. 75 HOLE DIAM. 10'5' <br /> :.� ► _ SAMPLER TYPE SPIT,spoon,continuous sampler <br /> CASING DATA Schd.40,PVC,5'solid,15' orf. x'diameter <br /> TOP OF CASING ELEVATION DRILLER West Hazmat <br /> Q WATER LEVEL 5.21' <br /> z w DATE 7-12.90 <br /> TIME 1100 <br /> o° DESCRIPTION <br /> Christy @ox <br /> 0 �- <br /> -= Concrete underlain by clean bacldiil <br /> 2 4"sch. <br /> 40 PVC <br /> 4 Casing Silty Clay:brawn,moist,low plasticity <br /> 6 CIL <br /> Same,becomes saturated <br /> 8 <br /> -10 <br /> Sand:brown.saturated,well graded,medium to course grained,some <br /> gravels <br /> rr <br /> 12 ' SW : <br /> f 14 <br /> Same,becomes fine to medium grained <br /> i S 4" <br /> sch.40 <br /> 18 PVC SM j Silty sand:brawn,saturated, low plasticity,some gravels <br /> 020 Clay:brown,damp,medium plastic <br /> '. 20 Slot <br /> Fq <br /> 22 Total depth-20 toot <br /> I � <br /> V" <br /> 24 <br /> 26SE <br /> Stabtized water level g Water encountered during drilling <br /> 28 _ Portland Cement IngSample submitted for laboratory analysis <br /> 30 Sand#3 Lonestar <br /> tiro Bentonite Pellets <br /> J <br />