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LITHOLOGIC LOG BORING No. STK-12
<br /> Logged By:Jennifer Gruda Date Started:10/10/07 Client:PG&E
<br /> Checked By:Rick McCartney Date Completed:10/10/07 Site:Stockton A Substation
<br /> Driller:Precision Sampling/Ernesto Northing:- Location:Stockton,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 /> o M— c _1u DESCRIPTION
<br /> ,K Sample I.D. m ci° > 2) 0
<br /> t n 0 c V m
<br /> 0 N o m O N N
<br /> .20
<br /> o ?i
<br /> 0-
<br /> GW Aggregate Base(6")
<br /> °e-- ___ _____ ______ ___ __ ____
<br /> STK-1z-o.5 2 ,. ':i('%- gyy Well graded SAND,dusky yellowish brown to dusky brown,moist,
<br /> v' coarse-grained,some fine gravel,some silt,little day,some orange
<br /> STK-12-1.0 2 --CL-- '` brick pieces 2"in diameter,no odor.
<br /> Sample STK-12-0.5 collected from 0.5-0.75 feet bgs.
<br /> p 5 SANDV CLAY,dark yellowish brown to olive gray,moist,soft,low J
<br /> CL plasticity,fine-to medium-grained,orange brick pieces,no odor.
<br /> `,Sample STK-12-1.0 collected-from-1.1.25 feet bgs.
<br /> gp Lean CLAY,dark yellowish brown,moist,medium stiff,medium to l
<br /> STK-12-3.0 3ff�, high plasticity,trace fine-grained sand,no odor.
<br /> / CL - ---feet,begins to grade to SAND with CLAY_
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<br /> 3 j Poorly graded SAND,pale yellowish brown,loose to medium
<br /> 4 / dense,fine-grained,little clay,little orange brick pieces,no odor.
<br /> Sample STK-12-3.0 collected from 3-3.5 feet bgs.
<br /> / At 3.5 feet,begins to grade to CLAY with SAND,dark yellowish
<br /> STK-12-5.0 �brown to grayish brown, -----------------------
<br /> Lean
<br /> _ ________ _____Lean CLAY,dark yellowish brown to grayish brown,slightly moist,
<br /> s 5 / medium stiff,medium to high plasticity,trace to little fine-grained
<br /> sand,no odor.
<br /> / Sample STK-12-5.0 collected from 5-5.5 feet bgs.
<br /> 5 At 5 feet,becomes grayish brown,trace gravel 1/."diameter.
<br /> j At 7 feet,becomes very dark grayish brown,stiff to very stiff,trace
<br /> fine-grained sand.
<br /> e 5 / At 8 feet,becomes dark grayish brown,some sand.
<br /> / At 9 feet,little to some fine gravel and coarse-grained sand.
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<br /> STK-12-e.5 CL Sample STK-12-9.5 collected from 9.5-10 feet bgs.
<br /> t0 GRAVELLY CLAY,brown,slightly moist to moist,little coarse-
<br /> grained sand,gravel 1/."diameter rounded,no odor.
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<br /> Notes:Boring completed to 10 feet bgs.Groundwaterwas 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,Coling,and Construction
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