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LOG OF EXPLORATORY BORING <br /> PROJECT NUMBER 0805-142.02 BORING NO. VW-13 <br /> PROJECT NAME ARCO Products Company Service Station No. 760 PAGE 1 OF 3 <br /> BY D. Foley DATE 6/7/95 SURFACE ELEV. —55 ft. <br /> RECOVERY PID PENETRA- N N LITHO- <br /> TION W WELL <br /> W I a GRAPHIC DESCRIPTION DETAIL <br /> ¢W UJ COLUMN <br /> (ft/ft) (ppm) (blws/ft) J Cl) <br /> FILL,BASIItOCK <br /> 0.5/0.5 0.0 SILT(NII.), dark grayish brown (10YR, 4/2); 100% <br /> low plasticity fines; damp; no hydrocarbon odor <br /> 0.5/0.5 0.0 @3': as above <br /> Ills <br /> SANDY SII.T(NII.), yellowish brown (10YR, 5/4); <br /> 70% low plasticity fines; 30% fine-grained sand; <br /> 1.5/1.5 0.0 5 damp; medium dense; no hydrocarbon odor <br /> 14 <br /> SILTY SAND(SM), brown to dark brown (7.SYR, <br /> 4/4); 25% low plasticity fines; 75% fine-grained <br /> sand; iron-oxide staining over 60% of sample; <br /> 1.1/1.5 0.0 10 manganese-oxide staining over 10% of sample; <br /> moist; dense; no hydrocarbon odor <br /> 34 <br /> SANDY SILT(NII.); yellowish brown(10YR, 5/4);" <br /> 80% low plasticity fines; 20% fine-grained sand; <br /> iron-oxide staining over 30% of sample; <br /> 1.2/1.3 0.0 15 manganese-oxide staining over 5% of sample; <br /> minor iron-oxide stained root cavities; damp; <br /> 85/0.8 very dense; no hydrocarbon odor <br /> 20 <br /> REMARKS <br /> Boring drilled using continuous-flight,hollow-stem auger drilling equipment and sampled with a modified California <br /> split-spoon sampler.Boring converted to a flinch diameter vapor extraction well.See Well Details sheet for well <br /> EOOINSconstruction information. <br /> E ON <br />