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' LITHOLOGIC LOG BORING No. STK-9 <br /> Logged By:Jennifer Gruda Date started:10/9/07 Client:PG&E <br /> ' Checked By:Rick McCartney Date Completed:10/9/07 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 <br /> ' z E <br /> n <br /> m n o c m <br /> ' m o 0 <br /> F Sample I.D. m U DESCRIPTION <br /> ° > u <br /> a N rn <br /> a oI!`w O N <br /> E d N <br /> ❑ n n? a <br /> 0 M 3 0—Aggregate Base(6") <br /> GW <br /> STK-9-0.5 2 syy Well graded SAND,dark brown to dark yellowish brown,dry,loose <br /> _ 0 ...,...,,.. <br /> a_ __---- to medium dense,trace silt, fo odor. <br /> ' j CL I�,Sample STK-9-0.5 collected from 0.5—0.75 feet bgs. <br /> SANDY CLAY,dark yellowish brown,dry,medium stiff,medium <br /> 2 0 / plasticity,fine-grained sand,some orange brick pieces. <br /> At 2 feet bgs,some%"diameter subangular gravel. <br /> 2 ------ _ _____ ______________soft-medium____-__- <br /> \ CH Fat CLAY,dark yellowish brown,slightly moist,sok,medium to high <br /> plasticity,trace fine-grained sand,no odor. <br /> 4 0 j)p __CL__ ___Lea__ _ _ _________n CLAY,dark grayish brown,slightly moist,stiff,medium plasticity,trace fine-grained sand,no odor. <br /> STK-9-5.0 0 / Sample STK-9-5.0 collected from 5—5.5 feet bgs. <br /> ' At 6 feet,becomes less plastic(low to medium plasticity) <br /> 6 2 / <br /> ' 7 j <br /> 5 1 j At 8 feet,becomes very stiff. <br /> j <br /> j' Sample STK-9-9.5 collected from 9.5—10 feet bgs.STK-9-9.5 6 At 9.5 feet,becomes highly plastic. <br /> to <br /> 12- <br /> 14- <br /> Notes: <br /> ztoNotes: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 Engineenng,ConsuPong,and Construction <br /> 1 <br />