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<br /> LOG OF EXPLORATORY BORING
<br /> PROJECT NUMBER 0805-114.02 BORING NO B261AS3
<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- N LITHO- WELL
<br /> TION jJ J GRAPHIC DESCRIPTION DETAIL
<br /> t�W
<br /> � CLW.� E COLUMN
<br /> (ftift) (ppm) (bless/ft) 0 [7��
<br /> 1 011 5 SILT(NII.), continued
<br /> 30
<br /> SQ.TY SAND (SM), light olive brown (2 5Y, 513),
<br /> 30% fines, 70% fine to medium-grained sand,
<br /> dense, wet, slight hydrocarbon 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, very slight hydrocarbon odor—
<br /> SILTY SAND(SM), brown to dark brown (10YR,
<br /> 48 413), 40% low plasticity fines, 60% fine to
<br /> medium-grained sand, very dense, wet, very
<br /> 1 511 9 slight hydrocarbon odor --
<br /> SAND(SP), brown to dark brown (10YR, 413), 10%
<br /> fines, 90% fine-grained sand, iron-oxide staining
<br /> 88/09 over 40% of sample, very dense, wet, very slight
<br /> 1 511 8 hydrocarbon odor
<br /> SILT(NII.), brown k10YR, 513), 90% low plasticity
<br /> 70 fines, 10% fine-grained sand, iron-oxide staining
<br /> 90/08 over 20% of sample, hard, wet, very slight
<br /> 16/20 hydrocarbon odor—
<br /> CLAYEY SILT(NII.), brown (10YR, 513), 100% low
<br /> plasticity fines, trace fine to medium-grained
<br /> 48 sand, hard, moist, no hydrocarbon odor
<br /> 1 511 9 SILT(NII.), brown to dark brown (10YR, 413),
<br /> 100% low plasticity fines, iron-oxide staining
<br /> over 30% of sample, hard, wet, very slight
<br /> 69/09 75 hydrocarbon odor
<br /> 16/19 @73' 0 4' thick layer of SANDY SILT(ML)
<br /> SAND(SP), dark grayish brown (10YR, 412), 100%
<br /> 90/09 fine to medium-grained sand, iron-oxide staining
<br /> over 5% of sample, very dense, wet, slight-
<br /> 10/1 5 hydrocarbon odor `
<br /> CLAYEY SILT(NII.), grayish brown (2 5Y, 512), +x`
<br /> 89 100° low plasticity fines, trace iron-oxide
<br /> staining, hard, wet, very slight hydrocarbon odor 7-
<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 California split-spoon sampler Boring drilled inside existing 12-inch diameter PVC conductor casing Boring
<br /> converted to a 2-inch diameter air sparge well See Well Details sheet for well construction information
<br /> Q4:
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