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LOG OF EXPLORATORY BORING <br /> PROJECT NUMBER 0805-147,01 BORING NO. B4(VW-3 <br /> PROJECT NAME ARCO Products Company Service Station No. 2186 PAGE 3 OF 4 <br /> BY D. Foley DATE 917195 SURFACE ELEV. —15.0 ft. <br /> RECOVERY Pic PENETRA- US LITHO- WELL <br /> TION GRAPHIC DESCRIPTION DETAIL <br /> n: n- COLUMN <br /> (Ft/rt) (ppm) (bows/ft) <br /> 1.111.5 0.4 SILT(ML), Continued <br /> 28 <br /> 1.011.5 0.0 45 @45': brown(10YR, 513); iron-oxide staining <br /> over 40% of sample; trace manganese-oxide <br /> 28 staining; clamp; no hydrocarbon odor <br /> SANDY SILT(ML), dark yellowish brown(10M <br /> 414); 60% low plasticity fines;40% fine-grained <br /> sand; very stiff; moist; no hydrocarbon odor <br /> 1.311.5 0.0 50 <br /> 19 <br /> SILTY SAND(SM), olive brown(2.5Y, 414); 30% <br /> fines; 70% fine-grained sand; iron-oxide staining <br /> over 20% of sample; trace caliche;medium dense; <br /> 1.311.5 0.0 55 moist; no hydrocarbon odor <br /> 23 <br /> CLAYEY SILT(ML), brown(10YR, 513); 100% low <br /> plasticity fines; iron-oxide staining over 40%of <br /> sample; trace manganese-oxide staining; gray <br /> staining over 5% of sample; hard; damp; no <br /> 60 hydrocarbon odor <br /> REMARKS <br /> Boring drilled using 10-inch diameter continuous-flight,hollow-stem auger drilling equipment and sampled with a <br /> modified Ca(iforttia split-spoon sampler. Boring converted to a 2-inch diameter dual completion vapor extraction well. <br /> See Well Details sheet for well completion information. <br /> E ON <br />