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SECOR
<br /> IntematwnalIncorporated
<br /> [-ogged By Date Drilled Dulling Contractor Project Name Method/Equipment Well Number
<br /> WEST ARCO#4932 SPLIT SPOON
<br /> - - - -CM - - 6/13/02-- - -HAZMAT- --- ---STOCKTON,CA— — - HOLLOW STEM-AUGER—-- EW=2-- --
<br /> See"Legend to Logs"for Bonng Surface Groundwater Depth(ft) TotalDrive Drop
<br /> sampling method, Dram(in) Elev(ft) Depth(ft) wt(lbs) Dist(in)
<br /> classifications and laboratory
<br /> —testing methods 12 NA t 28 STABILIZED 450 140 30
<br /> Well �s 3 Description
<br /> Construction C "
<br /> TRAMC 4-mch concrete slab
<br /> RATED Gravelly sand fill
<br /> WELL BOX Silty sand fill
<br /> 4 SILTY CLAY(CL) very dark grayish brown(10YR3/2),moderate
<br /> • • plasticity,very stiff,moist,(0,0,30,70)
<br /> • GROUT SANDY SILT(ML) very dark gray(10YR3/1),with clay,fine-grained
<br /> 5 5 sand,low plasticity,stiff,moist,(0,35,60,5) 0
<br /> 5
<br /> • • 9
<br /> v v
<br /> l0 8 CLAYEY SILT(ML) dark grayish brown(2 5Y4/2),with sand, 0
<br /> 9 fine-grained sand,moderate plasticity,very stiff,moist(0,10,65,25)
<br /> ( a 12
<br /> r r
<br /> b b
<br /> a v
<br /> 15 8 SILTY SAND(SM).dark yellowish brown(10YR4/4),with clay, 0
<br /> 12 fine-gramed sand medium dense moist 0 65 30 5
<br /> BENTO 16 SANDY SILT(ML). light olive brown(2 5Y4/2),with clay,fine-grained
<br /> SEAL sand,low plasticity,very stiff,moist(0,30,60,10)
<br /> SAND
<br /> 20 12 SILTY SAND(SM) dark yellowish brown(10YR5/4),with trace clay, 0
<br /> 6" 21 fine-grained sand,dense,moist(0,65,35,0)
<br /> DIAMETER, 23 SANDY SILT(ML) olive brown(2 5Y4/3),fine-grained sand,low
<br /> 0 020" plasticity,very stiff,moist(0,40,60,0)
<br /> STAINLESS
<br /> STEEL
<br /> WRAP
<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 this log apply only at the specific location
<br /> at the time of dnlling and may not be representative of subsurface conditions at other locations or times
<br /> project No 77BP 43287 00 0040 Date 8/15/02 PR Log of Well
<br /> 4932EW2 GPJ Approved by
<br /> LOG OF BOREHOLE
<br /> Figure (sheet 1 of 2)
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