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SECOR
<br />International Incorporated
<br />Logged By
<br />EG
<br />Date Drilled
<br />2/14/02
<br />Drilling 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-6B
<br />See "Legend to Logs" for sampling method,
<br />classifications and laboratory
<br />tesunz methods
<br />Boring
<br />Diam (in)
<br />8
<br />Surface
<br />Elev (Ii)
<br />25 90 TOC
<br />Groundwater Depth (ft) Total
<br />Depth (ft)
<br />50 0
<br />Drive
<br />wt (lbs )
<br />140
<br />Drop
<br />Dist (in)
<br />30
<br />SI 12 FIRST
<br />Well
<br />Construction .g
<br />g Sample Recovery , Blows/6" Descnplion G a.
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<br />0 NITE SBEENTAL
<br />SAND
<br />0020"
<br />SLOTTED
<br />SCREEN
<br />30
<br />35
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<br />3
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<br />13
<br />6
<br />12
<br />18
<br />19
<br />50/4"
<br />19
<br />36
<br />50
<br />CLAYEY SILT (ML) brown (101R5/3), medium plasticity, soft, wet, no
<br />odor (0,0,55,45)
<br />CLAYEY SILT (ML) yellowish brown (10'YR5/4), medium plasticity,
<br />medium stiff, wet, no odor (0,0,60,40)
<br />MW6B
<br />@25'
<br />MW6B
<br />@30'
<br />MW6B
<br />@35'
<br />MW6B
<br />@40'
<br />MW6B
<br />@45'
<br />SILTY CLAY/CLAYEY SILT (CL/ML) brown (10YR5/3), medium
<br />plasticity, medium stiff, wet, no odor (0,0,50,50)
<br />CLAYEY SILT (ML) brown (10YR5/3), low plasticity, stiff, wet, no odor
<br />(0,0,70,30)
<br />45 37
<br />50/5" =..
<br /> SILTY CLAY (CL) yellowish brown (10YR5/4), medium plasticity, stiff,
<br />wet, no odor (0,0,35,65)
<br />The substrata descnptions 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 atoter locations or times
<br />Project No 77CH 43578 00 0203 Date REVISED 6/13/02 pr
<br />8632MW6B GPI
<br />LOG OF BOREHOLE
<br />Log of Well
<br />Figure
<br />(sheet 2 of 3)
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