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' %t./ <br /> ALTON GEOSCIENCE PROJECT NO. 30-0136-01 DATE DRILLED 41"2 <br /> OG OF EXPLORATORY CLIENT Former Mobil Oil Bulk Plant 04343 BORING <br /> BORING ■ LOCATION 500 E. Grantline Road, Tracy,Califomia_ B-12 <br /> LOGGED BY G. Nieder-Westermann APPROVED BY— <br /> Page 1 0# 1 <br /> FIELD SKETCH OF BORING LOCATION <br /> DRILLING METHOD CME-55 Hollow Stem Auger_HOLE DIAM. $' <br /> SEE FIGURE 2 SAMPLER TYPE Continuous <br /> CASING DATA NIA <br /> TOP OF CASING ELEVATION &A DRILLER West Hazmat Drilling Co oration <br /> a DEPTH TO WATER 10.5' <br /> a- w DATE 4/3192 <br /> W J <br /> a_ d Co U u- TIME 1:45 PM <br /> CL CL < p m U � 0- DESCRIPTION <br /> 0 <br /> damp,dark yellowish brown, silty CLAY; rootlets. <br /> 2 CL very stiff, clamp, moderate yellowish brown CLAY. <br /> 4 very stiff, damp, dark yellowish brown CLAY. <br /> stiff,damp, moderate yellowish brown, clayey SILT. <br /> B stiff, damp, moderate yellowish brown,clayey SILT; increasing silt. <br /> 0 ND/ND 8 ML stiff, moist to wet, moderate yellowish brown, silty fine-to <br /> medium-grained SAND. _------------_____ ___ <br /> 100 ND/ND Mr. ,0 SM : mastiff, wet, moderate yellowish brown,fine-to medium-grained <br /> SAND. <br /> 12 <br /> Boring terminated at approximately 11-t/2 feet below grade. <br /> I <br />