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<br /> S ECOR
<br /> Logged By: Date Drilled: Drilling Contractor Project Name: Method/Equipment: well Number:
<br /> STTC-Ozone Well Install Air Rotary
<br /> C.M. 10/20/03 Cascade Drilling Stockton,California Casing Hammer OS-11B
<br /> Boring Surface Groundwater Depth(ft.): Total Drive Drop
<br /> Diam.(in.): Elev.(ft.): SZ 12 First Water Depth(ft.): wt.(Ibs.): Dist.(in.):
<br /> 8 40.0 140 30
<br /> >
<br /> Well S d 5
<br /> a
<br /> a Description
<br /> Construction n Ca
<br /> Traffic Rated SILTY SAND(SM):brown(10YR 5/3),fine grained sand,medium dense,damp,
<br /> Well Box (0,80,20).
<br /> ELASTIC SILT(MH):dark grayish brown(I OYR 4/2),fine grained sand,stiff,
<br /> o; damp,moderate plasticity,(0,10,90).
<br /> 3
<br /> 5 FAT CLAY(CH):dark grayish brown(IOYR 4/2),very stiff,moist,high plasticity,
<br /> (0,0,100).
<br /> 0
<br /> 3/4"SCH.80 O
<br /> PVC
<br /> o.
<br /> Grout 10 FAT CLAY WITH SAND(CH):dark gray(5Y 4/1),fine grained sand,stiff,moist,
<br /> high plasticity,faint hydrocarbon odor,(0,20,80).
<br /> 4
<br /> SANDY ELASTIC SILT(MH):dark greenish gray(10Y 4/1),fine grained sand, 98
<br /> stiff,moist to wet,medium plasticity,moderate hydrocarbon odor,(0,30,70).
<br /> i
<br /> 15
<br /> ° 117
<br /> ----------------------------------------
<br /> FAT CLAY(CH):dark greenish gray(10Y 4/1),very stiff,moist,high plasticity,
<br /> �* moderate hydrocarbon odor,(0,0,100).
<br /> SILTY SAND(SM):dark greenish gray(5GY 4/1),fine-medium grained sand,
<br /> medium dense,wet,faint odor,(0,80,20).
<br /> 20
<br /> 27
<br /> ------------ -----------------------
<br /> SANDY ELASTIC SILT(MH):dark greenish gray(5GY 4/1),fine grained sand,
<br /> stiff,moist to wet,medium plasticity,faint hydrocarbon odor,(0,30,70). 12
<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. 770T.43673.06.0007 Date 11/19/04 Log of Well
<br /> OS 1B-16B.GPJ Figure
<br /> LOG OF BOREHOLE
<br /> (sheet 1 of 2)
<br />
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