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4 <br /> k <br /> LOG OF EXPLORATORY BORING <br /> PROJECT NUMBER 0805-147.0I <br /> BORING N0. B-1/MW-1 <br /> PROJECT NAME ARCO products Company Service Station No. 2186 PAGE 2 OF 4 <br /> BY D. Foley DATE 8/29195 SURFACE ELEV. 15.0 ft. <br /> WELL <br /> RECOVERY FID PENETRA- N V) LITHO- DETAIL <br /> TIONgk <br /> jW J GRAPHICIL Z <br /> DESCRIPTION <br /> W � COLUMN:R' <br /> (ppro) (blws/ft) C9�J U¢i <br /> 1.5/1.5 U CLAYEY SILT(ML), continued <br /> 25 <br /> SANDY SILT(ML), dark grayish brown (2.5Y, 412); / <br /> 70% low plasticity tines; 30% fine-grained sand; <br /> iron-oxide staining over 30% of sample; minor <br /> caliche; very stiff. moist; slight hydrocarbon odor <br /> 1.4/1.5 0.5 25 <br /> 30 SILTY SAND(SM), dark grayish brown (2,5Y, 4/2); <br /> 30% fines; 70% fine-grained sand; medium dense <br /> to dense; moist; slight hydrocarbon odor <br /> SAND(SP), olive brawn(2.5Y, 4/3); 100% <br /> ' fine-grained sand: medium dense; moist; slight <br /> 30 • • hydrocarbon odor <br /> 1.4/1.5 1.0 <br /> 29 <br /> �I SLLT(NIL), olive brown (2.5Y, 4/3); 100% low � <br /> 1.3/1.5 1.0 35 plasticity tines; iron-oxide staining over 20% of <br /> sample:: minor caliche: stiff to very stiff; moist; <br /> 15 slight hydrocarl7on odor <br /> 40 <br /> RF-MARKS <br /> Boring drilled using 10-inch diameter-ntinuous-flight.hallow-stem auger drilling equipment and sampled with s <br /> modified California split-spoon sampler. Boring converted to a 4-inch diameter groundwater monitoring well.See <br /> Well Details sheet for well completion information. <br /> E ON ' <br />