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LITHOLOGIC LOG BORING No. BEL-5
<br /> Logged By:Jennifer Gruda Date Started:10/11/07 Client:PG&E
<br /> ' Checked By:Rick McCartney Date Completed: 10/11/07 Site:Bellota Substation
<br /> Driller:Precision Sampling/Ernesto Northing:- Location:Linden,California
<br /> Drilling Method:Hand Auger(0-5 ft)/Direct Push(5 ft-Total Depth) Easting:- Project No.:PGE-1035-400
<br /> Sampling Method:Hand Auger Bucket/2"x 5'core barrel Elevation:-
<br /> Sampling Interval:Continuous Boring Depth:10 Feet Page: 1 of 1
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<br /> Sample I.D. p
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<br /> .. O > L DESCRIPTION
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<br /> GW Aggregate Base(
<br /> BEL-5-0.5 _ 2SM SILTY SAND,dusky brown,slightly moist,medium-grained,some
<br /> CL Gay,little gravel,no odor.
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<br /> Sample BEL-5-0.5 collected from 0.5β0.75 feet bgs.
<br /> SANDY CLAY,dusky yellowish brown,slightly moist,soft,low
<br /> 2 j plasticity,fine-grained sand,trace silt,no odor. J
<br /> 1 / At 2 feet,becomes dark yellowish brown,low to medium plasticity.
<br /> Roc At 2.5 feet,hit rack(hardpan?).No recovery 2.5 to 2.75 feet bgs.
<br /> 1 At 2.75 feel,becomes SANDY CLAY with GRAVEL_
<br /> j CL At 3 feet,Hand auger refusal(hardpan?);Geoprobe used for further
<br /> borehole advancement.
<br /> 4 GRAVELLY CLAY,moderate brown,dry,stiff to very stiff,high
<br /> 2 plasticity,fine gravel(%to 1"diameter),no odor.
<br /> At 4 feet,becomes Lean CLAY,some fine gravel.
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<br /> BEL-5-5.0 2 !!/ SP-SC Poorly graded GRAVELLY SAND with CLAY,dark grayish brown,
<br /> ' dry to slightly moist,coarse-grained,well graded fine gravel,no
<br /> a odor.
<br /> 2 j/ CL Sample BEL-5-5.0 collected from 5β5.5 feet bgs.
<br /> At 5.5 feet,increase in clay content.
<br /> 2 j SANDY CLAY with GRAVEL,dark yellowish brown,slightly moist,
<br /> very low plasticity,no odor.
<br /> At 7 feet,becomes moist,increase in sand,trace fine gravel.
<br /> e' /i At 8 feet,becomes,moderate to dark brown,soft,low to medium 2 plasticity,medium-grained.
<br /> i CL CLAY with SAND,moderate to dark brown,moist,soft,low to
<br /> medium plasticity,fine-grained sand,no odor.
<br /> SP-SG At 8.75 feet,grades to CLAY with little sand.
<br /> BEL-5-9.5 GW GRAVELLY SAND with CLAY,moderate yellowish brown,dry to
<br /> toβ slightly moist,loose to medium dense,medium-grained,no odor.
<br /> SANDY GRAVEL,moderate yellowish brown,slightly moist,
<br /> medium dense,''/:"diameter pieces of white rock and crushed white
<br /> ' rock(hardpan?),no odor.
<br /> Sample BEL-5-9.5 collected from 9.5-10 feet bgs.
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<br /> Notes:
<br /> 214Notes:Boring completed to 10 feet bgs.Groundwater was not
<br /> encountered.Borehole backfilled with neat cement from total depth to TERRA PACIFIC GROUP
<br /> surface.Surface repaired to match surroundings.
<br /> Environmental Engineering,Consulting,and Construction
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