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4 <br /> 1LTON GEOSCIENCE PROJECT NO. 30-0135.01 DATE DRILLED 4/3M <br /> Oft-cOG OF EXPLORATORY CLIENT Former Mobil Oil Bulk Plan 04-343 BORING <br /> BORING ■ LOCATION 500 E. Grantiine Road Tracy, California B-15 <br /> LOGGED BY G. Nieder-Westerrwnn APPROVED BY, <br /> Page 1 of 1 <br /> FIELD SKETCH OF BORING LOCATION <br /> DRILLING METHOD CME-55 Hallow Stem Auger HOLE DIAM. 8' <br /> SEE FIGURE 2 SAMPLER TYPE Continuous <br /> CASING DATA WA <br /> TOP OF CASING ELEVATION M DRILLER West Hazmat Drilling Corporation <br /> 0 DEPTH TO WATER 10, <br /> E a ul S J DATE 4J3/92 <br /> g ar y U O TIME 3:05 PM <br /> 0 C o m U � 0- 1 DESCRIPTION <br /> 0 ASPHALT 32BASE 4' <br /> 2 damp,dark yellowish brown, silty CLAY. <br /> 4 CL <br /> ��---------------- --— <br /> 6 stlff, damp to moist, moderate yellowish brown, clayey SILT. <br /> 0 ND/ND — stiff, moist, moderate yellowish brown,clayey SILT; little <br /> %ape8 ML fine-grained sand. <br /> — '----------------.,.,.---------- <br /> 0 ND/ND Mr. <br /> 10 firm, wet, moderate yellowish brown, silty;fine-grained SAND. <br /> SM <br /> 12 Boring terminated at approximately 11-112 feet below grade. <br />