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LOG OF EXPLORATORY BORING <br /> PROJECT NUMBER 0805-147.01 BORING NO. B-4/MW-2 <br /> ' PROJECT NAME ARCO Products Company Service Station No. 2156 PAGE 1 OF 4 <br /> BY D. Foley DATE 8/29/95 SURFACE ELEV. 15.9 ft. <br /> ' RECOVERY FID PENETRA- Lu LITHO- <br /> TION ��� WELL <br /> tL iL GRAPHIC QESCRIPTION DETAIL <br /> feet j = COLUMN <br /> (ft/ft) (ppm) (btws/ft) 0 _j W <br /> ASPHALT <br /> FILL, BASEROCK <br /> ' SILT(NQ.), very dark grayish brown (10YR, 312); <br /> 100% low plasticity Fines; dry to damp; no <br /> ' hydrocarbon odor <br /> ' 1,011.5 0 5 @5':. as above; brown (10YR, 5/3); iron-oxide <br /> staining over 25% of sample; abundant caliche; <br /> 40 hard; damp; no hydrocarbon odor <br /> 1.2/1-5 0 10 @ 10'; dark yellowish brown (10YR, 414); no <br /> hydrocarbon odor <br />' 37 <br />' 1.411.5 0 15 @ 15'; as above; trace manganese-oxide staining; <br /> trace caliche; minor root cavities; very stiff; no <br />' 24 hydrocarbon odor / <br />' CLAYEY SILT(ML), light olive brown (2.5Y, 513); <br /> 100% low plasticity tines; iron-oxide staining <br /> over 5% of sample; very stiff; damp; no <br /> hydrocarbon odor <br /> zo <br /> REMARKS <br /> Boring drilled using 10-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 />