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LOG OF EXPLORATORY BORING <br /> PROJECT NUMBER 0805-142.02 BORING NO. VW-12 <br /> PROJECT NAME ARCO Products Company Service Station No. 760 PAGE 3 OF 3 <br /> BY D. Foley DATE 617/95 SURFACE ELEV. —55 ft. <br /> RECOVERY PID PENETRA- N LITHO- <br /> TION J W WELL <br /> ¢> a E GRAPHIC COLUMN DESCRIPTION DETAIL <br /> (ft/ft) (ppm) (blws/ft) l <C <br /> 1.4/1.5 4.5 CLAYEY SII.T(NII.), continued <br /> 46 <br /> SII.TY SAND(SM), grayish brown 00YR, 5/2); <br /> 40% low plasticity fines; 60% fine-grained sand; <br /> iron-oxide staining over 30% of sample; minor <br /> iron-oxide stained root cavities; minor caliche <br /> 1.5/1.52.5 45 seams; moist; dense; no hydrocarbon odor <br /> 44 <br /> SAND(SP), yellowish brown(10YR, 5/4); trace <br /> 50 • • fines; 100% fine-grained sand; trace <br /> 1.511.5 2.4 . . : medium-grained sand; abundant iron-oxide <br /> . . stained grains; moist; very dense; no hydrocarbon <br /> 62 . . . odor <br /> 1.3/1.5 0.0 55 : : ; @55': olive gray(5Y, 5/2); 5% fines; 95% <br /> fine-grained sand; iron-oxide staining over 15% <br /> 43 . . . of sample; dense; no hydrocarbon odor <br /> . . . . SANDY SII.T(NII,), yellowish brown (10YR, 5/4); <br /> • 70% low plasticity fines; 30% fine-grained sand; �, •..F, <br /> iron-oxide staining over 30% of sample; <br /> manganese-oxide staining over 5% of sample; JV <br /> r; <br /> 1.5/1.5 5.5 moist; medium dense; no hydrocarbon odor <br /> 19 � <br /> BORING TERMINATED AT 60.0 FEET -U;41, ; <br /> REMARKS <br /> Boring drilled using continuous-flight,hollow-stem auger drilling equipment and sampled with a modified California <br /> split-spoon sampler.Boring converted to a flinch diameter vapor extraction well.See Well Details sheet for well <br /> E00INSconatruction information. <br /> E ON <br /> of <br />