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ALTOGEOSCIENCE PROJECT NO. 30-0135-01_-- DATE DRILLED-L3-/92 <br /> LOG OF EXPLORATORY CLIENT Former Mobil Oil Bulk Plan 04-343 BORING <br /> BARING LOCATION 500 E.Grantline Road,Tracy,California 8-15 <br /> LOGGED BY G. Nieder-Westermann APPROVED BY__ <br /> Page 1 of 1 <br /> FIELD SKETCH OF BORING LOCATION <br /> DRILLING METHOD CME-55 Hollow Stem Auger HOLE DIAM. 8' <br />` SEE FIGURE 2 SAMPLER TYPE Contiguous <br /> i <br /> CASING DATA WA <br /> TOP OF CASING ELEVATION WA DRILLER West Hazmat Drilling Corporation_ <br /> DEPTH TO WATER 10, <br /> E a w S u3 DATE 4/3192 <br /> '-0.a' ( c cn '� TIME 3:05 PM <br /> E 2 a y U O <br /> C.) �°- a cm <br /> ¢n o ° U Cn Ir <br /> a. DESCRIPTION <br /> 0 <br /> ASPHALT W/BASE 4' <br /> 2 damp,dark yellowish brown, silty CLAY. <br /> 4 CL <br /> -------------------------- <br /> stiff, <br /> —....._...._.,.. --_....T_........,,.,....—...--------- <br /> stiff, damp to moist, moderate yellowish brown, clayey SILT. <br /> 0 ND/ND stiff, moist, moderate yellowish brown, clayey SILT; little <br /> ~- 8 ML fine-grained sand. <br /> 0 ND/ND7. 10 <br /> SM firm, wet, moderate yellowish brown, silty, fine-grained SAND. <br /> 12 <br /> Boring terminated at approximately 11-1/2 feet below grade. <br /> I <br /> I' <br />