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LOG OF EXPLORATORY BORING <br /> PROJECT NUMBER 0805-146.04 BORING NO VW-8 <br /> PROJECT NAME ARCO Products Company; ARCO Station No. 2168 PAGE 1 OF 2 <br /> BY D. Foley DATE 5/11195 SURFACE ELEV --11 ft. <br /> RECOVERY PID PENETRA- W LITHO- WELL <br /> TION � J GRAPHIC DESCRIPTION DETAIL <br /> CL¢1? ¢ COLUMN <br />' (ft/ft) (ppm) (blwslft) � �..1 N <br /> ASPHALT <br /> t <br /> FILL,BASEROCK <br /> 05/05 0 0 �" SILT(ML), very dark grayish brown(10YR, 3/2), <br /> 90% low plasticity fines, 10% fine-grained sand, <br />' damp, no hydrocarbon odor <br /> SANDY SILT(ML), dark brown (10YR, 313), 80% <br /> low plasticity fines, 20% fine-grained sand, <br />' iron-oxide staining over 10% of sample, damp, <br /> 5 no hydrocarbon odor <br /> 1 4/1 5 00 @4' brown (10YR, 513), 70% low plasticity fines, <br /> 30% fine-grained sand, abundant caliche, damp, <br /> 34 no hydrocarbon odor <br /> @5' yellowish brown (10YR, /54), <br /> manganese-oxide staining over 5% of sample, <br /> dense, damp, no hydrocarbon odor <br /> 1 111 5 00 10 @10' yellowish brown(10YR, 5/4), 80% low <br /> Plasticity fines, 20% fine-grained sand, <br />' 46 manganese-oxide staining over 20% of sample, <br /> dense, damp, no hydrocarbon odor <br /> 12/1 5 132 15 @15' brown (10YR, 513), iron-oxide staining <br /> over 15% of sample, manganese-oxide staining <br /> 1 19 over 5% of sample, caliche over 20% of sample, <br /> medium dense, damp, slight hydrocarbon odor <br />' 20 <br /> RENLkRM <br /> Boring drilled using continuous-tltght,hollow-stem auger drilling equipment and sampled with a modified California <br /> spirt-spoon sampler Boring converted to a 4-inch diameter vapor extraction well See Well Details sheet for well <br /> construction mformatnon <br /> E ON <br />