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SECOR
<br /> International Incorporated
<br /> =DR
<br /> Date Drilled Dnlling Contractor Project Name Method/Equipment Boring Number
<br /> • CASCADE TOSCO 8671 HOLLOW STEM AUGER
<br /> 12/12/01 DRILLING STOCKTON,CA CONTINUOUS CORE SB-1
<br /> See"Legend to Logs"for Boring Surface Groundwater Depth(ft) Total Drive Drop
<br /> sampling method, Diam(in) Elev(ft) 37 1 FIRST Depth(ft) wt(lbs) Dist(in)
<br /> classifications and laboratory
<br /> t 640 140 30
<br /> estin methods S
<br /> z
<br /> Well W
<br /> Construction a Description
<br /> A � A
<br /> a Q
<br /> 0 SBI
<br /> @50'
<br /> Same as above,fine-to medium-grained
<br /> Sames as above medium-to coarse-gained
<br /> SILTY SAND (SM) brown(IOYR4/3),fine-grained sand,dense,very moist
<br /> to wet,minor oxidation,no odor(0,60,35,5)
<br /> 55 SAND(SP) olive brown(2 5Y4/4),medium-to coarse-grained,dense,wet, 0 SBI
<br /> moderately graded,no odor(0,90,10,0) @55'
<br /> GROUT SILTY SAND (SM) brown(10YR4/3),fine-grained sand,dense,wet,no
<br /> odor(0,65,30,5)
<br /> SANDY SILT(ML) tight olive brown(2 5Y5/3),fine-grained sand, low
<br /> 60 plasticity,very moist to wet,minor oxidation,no odor(0,40,55,5) 0 SB I
<br /> SAND (SP) olive brown(2 5Y3/4),fine-to medium-grained,dense,wet, @60'
<br /> poorly graded,no odor(0,90,10,0)
<br /> SANDY SILT (ML) light olive brown(2 5Y5/3),low plasticity,hard,very
<br /> moist no odor Q 30 60 10
<br /> SILTY CLAY(CL) graytsh brown(2 5Y5/2),medium plasticity,hard to 0 SB1
<br /> very hard,slightly moist to moist,very minor exidation,no odor(0,10,35,55) @63'
<br /> 65-
<br /> 70—
<br /> The
<br /> 570The substrata descriptions above are generalized representations and based upon visual/manual classification of cuttings and/or
<br /> samples obtained during drilling Predominant material types shown on the log may contain different materials and the change from
<br /> one predominant material type to another could be different than indicated Descriptions on this log apply only at the specific location
<br /> at the time of drilling and may not be representative of subsurface conditions at other locations or times
<br /> Project No 077 43791 222 Date 12/31/01 PR Log of Boring
<br /> 8671SB1 GPJ Approved by
<br /> LOG OF BOREHOLE
<br /> Figure (sheet 3 of 3)
<br />
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