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' LITHOLOGIC LOG BORING No. STK-11 <br /> Logged By:Jason Ships 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"z 5'core barrel Elevation:- <br /> ' Sampling Interval:Continuous Boring Depth:10 Feet Page: 1 of 1 <br /> r E <br /> v c o `o o' <br /> ' o w DESCRIPTION <br /> ,X Sample I.D. u <br /> u to « <br /> n E o `m O E to m <br /> D N an d n <br /> ' 0—Concrete(6") <br /> STK-11-0.5 12SP-SM Poorly graded SAND with SILT,grayish brown,moist,medium stiff, <br /> ::. <br /> low,' plasticity,fine--to medium-grained,few coarse-grained,no odor-4 Sample leSTK-1 <br /> ST 11-0.5 collected from 0.5 1 feet bgs <br /> At 1 foot,few fine gravel. <br /> 2— 5 j CL Lean CLAY,dark yellowish brown moist,stiff,high plasticity,few <br /> medium-to coarse-grained sand,no odor. <br /> ' 7 j At 3 feet,some medium-to coarse-grained sand. <br /> ' <br /> 4—At 4 feet,trace coarse gravel. <br /> 3 j <br /> At 5 feet,little coarse gravel. <br /> STK-77-5.0 4 j Sample STK-11-5.0 collected from 5—5.5 feet bgs. <br /> 6 <br /> / At 6 feet,few coarse-grained sand. <br /> j <br /> At 7.5 feet,becomes moderate yellowish brown,fine-to medium- <br /> grained sand. <br /> 6 <br /> At 8.5 feet,no fine-to medium-grained sand. <br /> jSTK-11-9.5 Sample STK-11-9.5 collected from 9.5—10 feet bgs. <br /> 10- <br /> 12- <br /> Notes: <br /> 012Notes:Boring completed to 10 feet bgs.Groundwater was not <br /> encountered.Borehole backfilled with neat cement from total depth to < ERRA PACIFIC GROUP <br /> surface.Surface repaired to match surroundings. <br /> EWronmemal Engineering,Consuls ng,and Construction <br />