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I <br /> LOG OF EXPLORATORY BORING <br /> PROJECT NUMBER 4805-147.01 BORING NO. B-S/MW-3 <br /> PROJECT NAME ARCO Products Company Service Station No. 2186 PAGE 3 OF 4 <br /> BY D. Foley DATE 916195 SURFACE ELEV. 149 ft. <br /> RECOVERY PID PENT - o J WELL <br /> �` a���--+---- J GRAPRIC DESCRIPTION DETAIL <br /> ¢� - ¢ COLUMN <br /> (ft/ft) (ppm) (btws/ft) 99- en <br /> 1.5/1.5 0.0 @40': as above; brown 00YR, 5/3); 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 /> 1.2/1.5 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% Lines; 75% line-grained sand; <br /> 1.511.5 0.0 SO manganese-oxide staining, over 5% of sample; <br /> medium dense. moist; no hydrocarbon odor <br /> 15 <br /> . . . SAND(SP), dark grayish brown (I OYR, 412); 100% <br /> Cine-grained sand; trace fine-`rained gravel: very <br /> dense; moist; no hydrocarbon odor <br /> 55 • • . <br /> 1.511.5 3.9 <br /> i <br /> 44 . . . <br /> SAND(SW), brown to dark brown (1OYR. 4/3); <br /> SL 1001% fine to coarse-grained sand; trace fine to <br /> medium-grained gravel; very dense; wet; no <br /> 9l6/95 hydrocarbon odor <br /> 60 <br /> REMARKS <br /> Boeing 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 /> Well Details sheet for well completion information. <br /> E ON <br />