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' LOG OF EXPLORATORY BORING <br />' PROJECT NUMBER 0805-14701 BORING NO B-5/MW-3 <br /> PROJECT NAME ARCO Products Company Service Station No 2186 PAGE 3 OF 4 <br />' 13Y D Foley DA. 916/95 SURFACE ELEV 14 9 [t. <br /> RECOVERY PID PENETRA- to LITHO- WELL <br />' <br /> TION krL J GRAPHIC DESCRIPTION DETAIL <br /> zM COLUMN <br /> (ft/ft) (ppm) (btws/ft) —i rn <br />' <br /> 15/1 5 00 @40' as above, brown (10YR, 513), 100% low <br /> plasticity fines, iron-oxide staining over 40% of <br /> 31 sample, manganese-oxide staining over 5% of <br />' sample, very stiff, moist no hydrocarbon odor <br /> 1 <br />' 1 211 S 0 0 45 @45 as above, minor caliche damp, no <br /> hydrocarbon odor <br /> 31 <br />' SILTY SAND (SM), dark yellowish brown (10YR, <br /> 414), 25% fines, 75% fine-!!ratned sand, <br /> 1 511 5 00 50 manganese-oxide staining over 5% of sample, <br />' medium dense, moist no hvdrocarbon odor <br /> 15 <br /> 1 <br />' SAND(SP), dark grayish brown (10YR, 412), 100% <br /> fine-grained sand, trace fine-grained gravel, very <br /> dense moist, no hydrocarbon odor <br />' 1 511 5 3 9 55 <br /> 44 <br /> SAND (SW) brown to dark brmm GOYR 413), <br /> Q 100% line to coarse-;rained sand, trace fine to <br /> medium-grained gravel very dense, wet, no <br /> 916/95 h\drut_arbon odor <br /> 60 <br /> RL\4Aktw <br /> Boring drilled using Io-inch diameter continuous Flight hollow-stem auger drilling equipment and sampled with a <br /> modified California split spoon sampler Boring converted to a 4 inch diameter groundwater monitoring well See <br />' WellDetails sheet for well completion information <br /> tE <br />