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LOG OF EXPLORATORY BORING
<br /> PROJECT NUMBER 0805-114.02 BORING NO. B26/AS3
<br /> PROJECT NAME ARCO Products Company Service Station leo 2130 PAGE 4 OF 4
<br /> BY D. Foley DATE 8/10195 SURFACE ELEV —15 ft.
<br /> RECOVERY Pro PENETRA- W LITHO-
<br /> TION � d GRAPHI DESCRIPTION
<br /> �¢ u
<br /> ICE COLUMN DETAi
<br /> (ftift) (ppm) (btws/ft) '&-.i `�j N
<br /> 10115
<br /> SILT(NII.), continued
<br /> 30
<br /> SILTY SAND(SM), light olive brown (2 5Y, 5/3),
<br /> 3096 fines, 70% fine to medium-grained sand.
<br /> dense, wet, slight h,drocarbon odor
<br /> CLAYEY SILT(NII.), light olive brown(2 5Y, 513),
<br /> 100% low plasuctty fines. trace Iron-oxide
<br /> staining, trace maneanese-oxide staining, minor
<br /> 1 511 5 65 caliche, hard, moist. tier-, slight hydrocarbon odor
<br /> SILTY SAND(SM), brown to dark brown(10YR,
<br /> 48 4/3), 40% low elasticin fines, 60% fine to
<br /> medium-grained sand, %cry dense, wet, very
<br /> 1 5/1 9 slight hydrocarbon odor
<br /> SAND(SP), brown to dark brown(10YR,4/3), 10%
<br /> fines, 90% fine-grained sand, iron-oxide staining
<br /> 88/09 over 40%of sample.ger.-dense, wet, very slight
<br /> 15/1 8 hydrocarbon odor
<br /> 70 SILT(ML). brown (10YR. 5b),90% low plasticity
<br /> fines, 10% fine-grained sand, iron-oxide staining
<br /> 90/08 over 20%of sample hard. wet, very slight
<br /> 1 6/2 0 hydrocarbon odor
<br /> CLAYEY SILT(NII.), brown (IOYR, 5/3), 100% low
<br /> 48 plasticity fines, trate fine to medium-grained
<br /> sand, hard, moist, no hN drocarbon odor
<br /> 1 511 9 SILT(ML), brown to dark brown(10YR.4/3),
<br /> 100% low plasticity fines. iron-oxide staining
<br /> 69/09 over 30% of sample,hard; wet, very slight
<br /> 1 6/1 9 75 hydrocarbon odor
<br /> @73' 0 4' thick layer of SANDY SILT(ML)
<br /> SAND(SP), dark grayub brown(10YR, 412), 100%
<br /> 90/09 fine to medium-grained sand, iron-oxide staining
<br /> 10/1 5 over 5% of sample, }ery dense, wet; slight
<br /> hydrocarbon odors.
<br /> 89 CLAYEY SILT(h[L), gr2rsh brown (2 5Y, 5/2).
<br /> t00% low plasticity fines. trace iron-oxide
<br /> staining; hard, wet, ver slight hydrocarbon odor
<br /> 80 BORING TERMINATED AT 78 5 FEEL'
<br /> REMARKS
<br /> Bong drilled using 8-iach diameter coalmuous-flight,hollow-stem auger doping equq ment and sampled with a
<br /> modified Cahfonua spill-spoon sampler Boring drilled inside existing 12-incb diameter PVC conductor casing Bonng
<br /> converted to a 2-inch diameter air sparge well Sec Well Details sheet for well colimumon information
<br /> E ON
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