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LOG OF EXPLORATORY BORING <br /> PROJECT NUMBER 0805-114.02 BORING NO B27/A52 <br /> PROJECT NAME ARCO Products Company Service Station No 2130 PAGE 2 OF 4 <br /> SY D Foley DATE 8/10195 SURFACE ELEV --15 ft. <br /> RECOVERY PID PENETRA- c!) LITHO- WELL <br /> TION J hk J GRAPHIC DESCRIPTION DETAIL <br /> t? m COLUMN <br /> (ft/ft) (ppm) (blws/ft) to <br /> CLAYEY SILT(NII..), continued <br /> 22 <br /> SANDY SILT(NII.), brown (10YR, 513), 80% low <br /> plasticity fines, 20% fine-grained sand, <br /> iron-oxide staining over 20% of sample, abundant <br /> caliche, medium dense, damp, stronj hydrocarbon <br /> odor <br /> 1 411 5 242 25 <br /> 27 <br /> SILTY SAND (SM), brown to dark brown (IOYR <br /> 413), 20% fines, 80% fine-grained sand, <br /> won-oxide staining over 20% of sample, minor, <br /> caliche, dense, moist, stro ydrocarbon odor <br /> 1 411 5 240 30 <br /> 42 <br /> SANDY SILT(NII.), dark yellowish brown (IOYR, <br /> 09/15 275 414), 75% low plasticity fines, 25% fine-grained <br /> 35 sand, manganese-oxide staining over 5% of <br /> 35 sample, minor caliche, dense, damp, strong <br /> hydrocarbon odor <br /> SILT(NII.), brown to dark brown (10YR, 413), <br /> 100% low plasticity fines, manganese-oxide <br /> staining over 5% of sample, rrunor caliche, very <br /> stiff, damp, strong.hydrocarbon odor <br /> 13/1 5 229 <br /> 40 <br /> REMARKS <br /> Baring dulled using 8-inch diameter continuous-flight,hollow-stem auger drilling equipment and sampled with a <br /> modified California split-spoon sampler Boring drilled inside existing 12-tech diameter PVC conductor casing Boring <br /> converted to a 2-inch diameter air sparge well See Well Details sheet for well construction information <br /> E ON <br />