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SECOR
<br /> Intemattonal Incorporated
<br /> Logged By Dates Drilled Drilling Contractor Project Name Method(Egtupment Boring Number
<br /> 7/9/01 WEST ARCO 04932 CONTINUOUS CORE
<br /> CM 7/9/01 RAZMAT STOCKTON,CA HSA SB.1
<br /> See"Legend to Logs"for Boring Surface Groundwater Depth(ft) Total Drive Drop
<br /> sampling method, Diam(m) Eley(ft) $ 27 5 FIRST Depth(ft) wt(lbs) Dist(in)
<br /> classifications and laboratory 8 NA X 28 5 STABILIZED 805 NA NA
<br /> -testingmethods
<br /> Well Description
<br /> Construction
<br /> 3
<br /> SAND(SP). olive brown(2 5Y4/3),with silt,fine-grained,medium dense,moist
<br /> (0,90,10,0)
<br /> 3a l
<br /> SANDY SILT(ML): yellowish brown(10YR5/4),fine-grained sand,low plasticity,
<br /> very stiff,moist(0,30,70,0)
<br /> SILTY SAND(SM):olive brown(2 5Y4/4),fine-grained sand,dense,moist to wet
<br /> (0,65,35,0)
<br /> 35
<br /> SANDY SILT(ML). olive gray(5Y5/2),with clay fine-grained sand,moderate
<br /> plasticity,stiff,moist(0,35,55,10)
<br /> Caliche rich zone
<br /> Same as above,no clay,increased sand content,moist to wet(0,45,55,0) 5
<br /> SAND(SP).olive brown(2.5Y4/3),with trace silt,fine-grained,dense,wet
<br /> (0,90,10,0)
<br /> 45--1SANDY SILT(MEL)• dark yellowish brown(10YR4/4),fine-grained sand,low
<br /> GROUT plasticity,stiff,moist(0,35,65,0) 0
<br /> SAND(SP).olive brown(2 5Y4/3),fine-grained,dense,wet(0,90,10,0)
<br /> The 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 tits 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 tunes
<br /> Project No 077.43286 330 Date 8/14101 PR Log of Bonag
<br /> 4932SB 1 GPJ Approved by
<br /> LOG OF BOREHOLE
<br /> Figure (sheet 2 of 4)
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