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LOG OF EXPLORATORY BORING <br /> PROJECT NUMBER 0805-152.03 BORING NO VW-20 <br /> PROJECT NAME ARCO Products Company Service Station No. 6100 PAGE 1 OF 5 <br /> BY C. Avila DATE 716/95 SURFACE ELEV NA ft. <br /> RECOVERY PID PENTTORA- J U) LITHO- WELL <br /> F y --A GRAPHIC DESCRIPTION DETAIL <br /> =w ¢ <br /> MCOLUMN <br /> (ft/ft) (ppm) (blws/ft) CEJ U) <br /> SILT(NII..), some fine-grained sand, light brownish <br /> gray, 80% silt, 20% sand, non plastic, dry, no <br /> hydrocarbon odor <br /> 1 511 5 00 @4' as above, very stiff, no hydrocarbon odor <br /> 22 5 <br /> 10 <br /> 05105 00 <br /> SILTY SAND (SNI), fine to coarse-grained, light <br /> 0 510 5 00 brownish gray, dry, no hydrocarbon odor <br /> SILT(NII.), some fine-grained sand, light brownish <br /> gray, non plastic, no hydrocarbon odor <br /> 05105 00 15 <br /> @ 19' silt, trace clay, light gray, non plastic, <br /> 1 511 5 00 iron-oxide staining, caliche, dry, very stiff, no <br /> —L- 20 I HII hydrocarbon odor <br />. REMARKS <br /> Boring drilled using 8-inch diameter continuous-flight,hollow-stem auger drilling equipment and sampled with a <br /> modified Cal forma split-spoon sampler Boring logged from drill cuttings between the 4 and 19 foot sample intervals <br /> EoorNBoring converted to a 4-inch diameter vapor extracuon well See Well Details sheet for well constiucuon mforn=on <br /> E ON <br />