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Advanced BORING LOG <br /> Geo Environmental, Inc. <br /> 4005 North Wilson Way, BOREHOLE NO OZ2 <br /> Stockton, CA 95205 <br /> (209) 467-1006 FAX (209)467-1118 TOTAL DEPTH 62 Feet <br /> Project Former STEFANOS GAS STATION Date(s) Drllle 12-16-04 <br /> Project No AGE-NC-03-1100 Page 2 of 2 <br /> Depth Sample Blows F'1D il USCS Class and Well Well <br /> ID 1 ft (ppm) �S,Srohol Soil Description Completion Description <br /> -35 <br /> CL Grey Brown,CLAY,low plasticity,low <br /> -40— OZ2-40 81919 0 toughness,low consistency,damp,possible <br /> hydrocarbon(HC)odor <br /> Cement grout seal from <br /> 05 to54'bsg <br /> SM Grey Brown,SILTY SAND, 10%silt,poorly <br /> -45 07-245 9/9/10 0 UT graded,damp,no HC odor <br /> -S 0 CL Grey Brown,SANDY CLAY high plasticity, <br /> OZ2-50 9/10/11 0 r low toughness,high consistency,saturated,possible <br /> HC odor <br /> SW Grey,SAND,fine-to medium-grained,poorly <br /> 5 S graded,saturated,no HC odor Bentonite seal from 54' <br /> OZ2-55 8/8/8 0 j to 57' bsg <br /> #3 sand from 57'to 62' <br /> bsg <br /> SW Grey Brawn,SAND,medium-to fine-grained, <br /> -GO— pZ2-50 9110/12 0 5%coarse sand poorly graded,saturated,slight HC -I <br /> odor <br /> Screen interval(0 020) <br /> SW Grey Brown,SAND,medium-to fine-grained, from 60'to 62'bsg <br /> OZ2-62 8/10/11 0 5%coarse sand,poorly graded,saturated,slight HC <br /> odor <br /> CL At toe of sampler Grey Brown,SILTY CLAY, <br /> high plasticity,moderate toughness,high consistency, <br /> -65-- damp,slight HC odor <br /> • <br />