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LOG OF EXPLORATORY BORING <br /> PROJECT NUMBER 0805-147.01 BORING NO. B-2 <br /> PROJECT NAME ARCO Products Company Service Station No. 2186 PAGE 1 OF Z <br /> BY D. Foley DATE 8128195 SURFACE ELEV. -15.0 ft. <br /> RECOVERY FID PENETRA- W LITHO- WELL <br /> TION J � W GRAPHI DESCRIPTION DETAIL <br /> 02 tsJ <br /> iY¢W W� r- COLUMN <br /> (ft/ft) (ppm) (blas/ftl -.� t�j U <br /> 17 ASPHALT / <br /> FILL,, BASEROCK <br /> SILT(ML), brown (10YR, 513); 100% low plasticity <br /> fines; dry; no hydrocarbon odor / <br /> 1.011.5 0 5 @4.5': as above; iron-oxide staining over 5% of <br /> sample; manganese-oxide staining over 30% of <br /> 53 sample; minor caliche; hard; damp; no /f <br /> hydrocarbon odor <br /> lA/1-5 0 r <br /> l0 @9.5': as above; irr -aside staining over 5%Q of <br /> sample'. manganese-oxide staining over 5%of <br /> 68 sample; no hydrocarbon odor <br /> SANDY SILT(NII_), dark yellowish brown (IOYR, / <br /> 414); 80% low plasticity lines; 20% fine-grained <br /> sand; manganese-oxide staining over 5%of <br /> sample; hard; damp; no hydrocarbon odor <br /> 1.011.5 0 <br /> 15 /42 SILT(ML), dark yellowish grown (lOYR, 414); / <br /> 100% low plasticity fines; manganese-oxide <br /> staining over 5% of sample; hard; damp; no / <br /> hydrocarbon odor <br /> @ 19.5': as above; olive brown (2.3Y, 414): <br /> iron-oxide staining over 5%of sample; / <br /> manganese-oxide staining over 5% of sample: <br /> minor caliche; minor root cavities; hard: damp; <br /> 20 no hydrocarbon odor <br /> RE,MA RKS <br /> Boring drilled at a 45 degree angle using 8-inch diameter continuous-(light.hollow-stem auger drilling equipment and <br /> sampled with a modified California split-spoon sampler. Boring backfilled with bentonite cement grout. <br /> kiim E ON <br />