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SECOR
<br /> International Inco orated
<br /> Logged By Date Drilled Drilling Contractor Project Name Method/Equipment Well Number
<br /> . CASCADE TOSCO 8671 HOLLOW STEM AUGER
<br /> DH 12/13/01 DRILLING STOCKTON,CA SPLITSPOON MW-6
<br /> See"Legend to Logs"for Boring Surface Groundwater Depth(ft) Total Drive Drop
<br /> sampling method, Diam(in) Elev(ft) 34 5 FIRST Depth(ft) wt(lbs) Dist(in}
<br /> classifications and laboratory
<br /> testing methods 8 12 20 TOC X 311 STABILIZED 450 140 30
<br /> O
<br /> Well v a z
<br /> Construction n. o Description
<br /> Q
<br /> TRAFFIC Concrete
<br /> RATED Hand-augered to 5 feet
<br /> WELL BOX CLAYEY SILTY SAND(SM) very dark gray(5Y3/1), fine-grained
<br /> sand,low plasticity,medium dense,slightly moist,no odor
<br /> (0,40,40,20)
<br /> 13 SANDY SILT with CLAY(ML) dark grayish brown(2 5Y4/2), 0 MW6
<br /> 5 15 fine-grained sand,low plasticity,very stiff,slightly moist,no odor @5'
<br /> o °
<br /> 16 (0,30,55,15)
<br /> r r
<br /> b b
<br /> r
<br /> ° 14 SAND (SP) light yellowish brown(2 5Y6/3),fine-to 0 MW6
<br /> 10 16 medium-grained,medium dense,oxidation of 30%of grames, @101
<br /> b °
<br /> 16 moderately graded,no odor(0,95,5,0)
<br /> r �
<br /> GROUT
<br /> • r
<br /> 12 SILTY SAND(SM) yellowish brown(10YR5/4),fine-grained sand, 0 MW6
<br /> 15 13 medium dense,very minor oxidation,no odor(0,65,30,5) @ 15'
<br /> 15
<br /> a a
<br /> r r
<br /> 14 SAND(SP) light yellowish brown(2 5Y6/3),medium-to 0 MW6
<br /> 20 15 coarse- rained medium dense,ga(0,100,0,0) @20'
<br /> BENTONITT 14 CLAYEY SILT(ML) olive brown(2 5Y4/3),low plasticity,very
<br /> stiff,damp,no odor(0,5,70,25)
<br /> SAND
<br /> 16 SANDY SILT(ML) light olive brown(2 5Y5/3),fine-grained sand, 0 MW6
<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 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 Well
<br /> 8671 MW6 GPI Approved by
<br /> LOG OF BOREHOLE
<br /> Figure (sheet 1 of 2)
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