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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 No. 2130 PAGE 4 OF 4
<br /> BY D. Foley DATE 8/10/95 SURFACE ELEV --15 ft.
<br /> RECOVERY PID PENETRA- Vs LITHO-
<br /> TION � WELL
<br /> z C d GRAPHIC DESCRIPTION DETAIL
<br /> 0:�W LLLs r_ COLUMN
<br /> (ft/ft) (PPM) (bLws/ft) 9-1 `'�I N
<br /> L 011 5
<br /> SILT(ML), continued
<br /> 30
<br /> SILTY SAND(SM). light olive brown(2 5Y, 5/3),
<br /> 30% 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 plasticity fines trace iron-oxide
<br /> staining, trace manganese-oxide staining, minor
<br /> 1 511 5 65 caliche, hard, moist. r en slight hydrocarbon odor
<br /> SILTY SAND(SM), brown to dark brown(10YR,
<br /> 48 413), 40% low plasuciv. fines, 60% fine to
<br /> medium-grained sand %cry dense, wet, very
<br /> 15/1 9 slight hydrocarbon odor
<br /> SAND(SP), brown to dark brown(10YR, 413), 10%
<br /> fines, 90% fine-gramed sand, iron-oxide staining
<br /> 88/09 over 40% of sample %cry dense, wet, very slight
<br /> 15/1 8 hydrocarbon odor
<br /> 70 SILT(NII..), brown k 10YR. .l3), 90% low plasticity
<br /> fines, 10% fine-grained sand, iron-oxide staining
<br /> 90/08 over 20% of sample ".,Wet, very slight
<br /> 16/20 hydrocarbon odor
<br /> CLAYEY SILT(NII.) bro%-n 00YR, 513), 100% low
<br /> plasticity fines, trace fine to medium-grained
<br /> 48 sand, hard, moist, no h%drocarbon odor
<br /> 1 511 9 SILT(NII„), brown to dark brown(10YR, 413),
<br /> 100% Iow plasticity fines, iron-oxide staining
<br /> 69/09
<br /> over 30% of sample,hard, wet, very slight
<br /> 1 611 9 75 hydrocarbon odor
<br /> @73' 0 4' thick layer of SANDY SILT(ML)
<br /> SAND(SP), dark grayish brown(10YR, 4/2), 100%
<br /> 90/09 fine to medium-grained sand, iron-oxide staining
<br /> 10/1 5 over 5% of sample, fiery dense, wet, slight
<br /> hydrocarbon odor -45
<br /> s.
<br /> 89 CLAYEY SILT(NII.), grafi-ish brown (2 5Y. 512),
<br /> 100% low plasticity fines. trace iron-oxide
<br /> staining, hard, wet, veru slight hydrocarbon odor
<br /> 80 BORING TERMINATED AT 78 5 FEET
<br /> REMARKS
<br /> Boring drilled using 8-inch diameter continuous-flight,hollow-stem auger drilling equipment and sampled with a
<br /> modified Cahforma split-spoon sampler Boring drilled inside existing 12-mcli dum L--r FVC conductor casing Boring
<br /> EOONconverted to a 2-inch diameter air sparge well See Well Details sheet for weft construction information
<br /> E ON
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