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SECOR
<br />International Incorporated
<br />Logged By
<br />EG
<br />Date Drilled
<br />2/13/02
<br />Dnlling Contractor
<br />GREGG
<br />DRILLING
<br />Project Name
<br />CHEVRON 9-8632
<br />TRACY, CA
<br />Method/Equipment
<br />SPLIT SPOON
<br />HOLLOW STEM AUGER
<br />Well Number
<br />MW-5
<br />See ''Legend to Logs for
<br />sampling method,
<br />classifications and laboratory
<br />testma methods
<br />Boring
<br />Diam (in)
<br />8
<br />Surface
<br />Elev (ft)
<br />26 98 TOC
<br />Groundwater Depth (0)
<br />V 6 5 FIRST
<br />Total
<br />Depth (ft)
<br />47 0
<br />Dnve
<br />wt abs)
<br />140
<br />Drop
<br />Dist (in)
<br />30
<br />Construction Depth. (ft) Sample Recovery Blows/6" Well Description a.
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<br />TRAFFIC
<br />—
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<br />51
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<br />Asphalt ..-
<br />MW5
<br />@5'
<br />MW5
<br />010'
<br />MW5
<br />@15'
<br />MW5
<br />020'
<br />,- .:GROUT
<br />RA1E1)
<br />WELL BOX
<br />SILTY SAND/CLAYEY SILTY SAND (SM) dark brown (10YR3/3),
<br />fine-to medium-grained sand, loose, moist, petroleum odor (0,40,30,20)
<br />Grades to fine-grained sand
<br />CLAYEY SILT (ML) dark gray (10YR4/1), low plasticity, soft, wet,
<br />petroleum odor (0,5,55,40)
<br />CLAYEY SILT (ML) yellowish brown (10YR5/4), medium plasticity,
<br />medium stiff, wet, no odor (0,0,55,45)
<br />', SILTY CLAY (CL) yellowish brown (10YR5/4), medium plasticity, stiff,
<br />wet, no odor (0,0,35,65)
<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 on this log apply only at the specific location
<br />at the time of drilling and may not be representative of subsurface condin ik s or times
<br />.i.
<br />Project No 77CH 43578 00 0203 Date REVISED 6/13/02 PR
<br />8632MW5 GPJ
<br />LOG OF BOREHOLE
<br />Log of Well
<br />Figure
<br />(sheet 1 of 2)
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