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FAA C411 g 1 rem <br /> µ:J <br /> ALTON GEOSCIENCE, Inc. PROJECT NO. 30.140 DATE DRILLED 8-8.90 BORING NO. <br /> LOG OF EXPLORATORY B-t <br /> CLIENT Mobil Oil Co ration <br /> BONING LOCATION Tracy Blvd,and Grantline Road.Tracy,CA WELLNO. <br /> LOGGED BY_W.Shipp _ APPA0VED BY AMW3 <br /> FIELD SKETCH OF BORING LOCATION <br /> '$ DRILLING METHOD C.M.E. 75 HOLE DIAM. 8.5 <br /> SAMPLER TYPE Split Spoon <br /> CtrRN+l,Ne as CASING DATA Schd.40 PVC,2,5'solid, 12.5'oerf. <br /> TOP OF CASING ELEVATION DRILLER West Hazrnat <br /> Cr WATER LEVEL 7.36' <br /> Q e W a DATE 8-10.90 <br /> (7 cdw � TIME 0930 <br /> v s: o v ' DESCRIPTION <br /> Christy Box <br /> 0 <br /> 0 2"sch. Top Soil <br /> 2 40 PVC <br /> Casing ' CL Clay:medium brown,moist,stiff,highly plastic, 10%fine micas <br /> 0 4 ....,�,.,. <br /> 1-6 Sandy Sift:brown,moist,firm,low plasticity,20%find sands,5%rounded <br /> gravels <br /> t3 _ SM Sandy Sift:tan,slightly moist,very low plasticity <br /> 10 <br /> o g <br /> i2 <br /> 14 CL ,Sandy Clay:tan,wet,stiff,highly plastic,20%fine sands <br /> 2' <br /> sch.40 <br /> �6 PVC <br /> .020 Total depth.15 feet <br /> 18 Slot <br /> 20 <br /> 22 <br /> 24 <br /> 26 <br /> Stablized water level SZ Water encountered during drilling <br /> 26 Portland Cement Sample submitted for laboratory analysis <br /> 30 Sand#3 Lonestar <br /> ED Driven sample <br /> 'tilt Bentonite Pellets <br />