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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 2 <br />' BY D. Foley DATE 8128/95 SURFACE ELEV. •-15.0 ft. <br />' RECOVERY FID PENETRA- cn LITHO- WELL <br /> TION �� -k J GRAPHIC DESCRIPTION DETAIL <br /> a:= 'X COLUMN <br /> (ft/ft) (ppm) (blws/ft) 0-.I rn <br /> ASPHALT <br /> FELL, BASEROCK <br />' SILT(NII,.), 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 <br /> hydrocarbon odor <br /> 1.011.5 0 10 @9.5': as above; iro.^.-aride staining over 5% of <br /> sample; manganese-oxide staining over 5% of <br /> 68 sample; no hydrocarbon odor <br />' SANDY SILT(ML), dark yellowish brown (10YR, <br /> 414); 80% low plasticity Fines; 20% fine-grained / <br />' sand; manganese-oxide staining over 5% of <br /> sample; hard; damp; no hydrocarbon odor / <br />' 1.011.5 0 15 <br /> 42 SILT(ML), dark yellowish brown (10YR, 414); <br /> 100% Iow plasticity fines; manganese-oxide / <br />' staining over 5% of sample; hard; damp; no / <br /> hydrocarbon odor / <br /> @ 19.5': as above; olive brown (2.5Y, 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 /> 1.411.5 0 20 no hydrocarbon odor <br /> REMARKS <br /> Boring drilled at a 45 degree angle using 8-inch diameter continuous-flight,hollow-stem auger drilling equipment and <br /> sampled with a modified California split-spoon sampler. Boring backfilled with bentonite cement grout. <br /> E ON <br />