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LOG OF EXPLORATORY BORING <br /> PROJECT NUMBER 0805-15203 BORING NO VW-20 <br /> PROJECT NAME ARCO Products Company Service Station No. 6100 PAGE 2 OF 5 <br /> BY C. Avila DATE 7/6/95 SURFACE ELEV NA ft. <br /> RECOVERY PID PETIORA- � to LITHO- WELL <br /> I J GRAPHIC DESCRIPTION DETAIL <br /> � a. <br /> ¢> E COLUMN <br /> (ft/ft) (ppm) (blws/ft) CEJ `t i4M <br /> 31 SILT(NII,,), continued <br /> 1 511 5 00 @24' as above <br /> 28 25 <br /> 15/15 0 0 @29' SILT, trace fine-grained sand, light gray, <br /> 90% silt, 10% sand, non plastic, dry, hard, no <br /> fit 30 hydrocarbon odor <br /> 1 511 5 00 @34' silt, light gray, non plastic, dry, hard, no <br /> hydrocarbon odor <br /> 68 35 <br /> 1 511 5 00 @39' as above, light grayish brown, non plastic, <br /> 40 caliche <br /> REMARKS <br /> Boring drilled using 9-inch diameter continuous flight,hollow-stem auger drilling equipment and sampled with a <br /> modified Califorma spht-spoon sampler Boring logged from dnll cuttings between the 4 and 19 foot sample intervals <br /> E00NBonng converted to a 4-mch diameter vapor extraction well See Well Details sheet for well construction information <br /> E ON <br />