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S ECOR
<br /> Logged By: Dates Drilled: Drilling Contractor Project Name: Method/Equipment: well Number:
<br /> 10/20/03 STTC-Ozone Well Install Air Rotary
<br /> C.M. 10/21/03 Cascade Drilling Stockton,California Casing Hammer US-10$
<br /> Boring Surface Groundwater Depth(ft.): Total Drive Drop
<br /> Diam.(in.): Elev.(ft.): V 18 First Water Depth(ft.): wt.(Ibs.): Dist.(in.):
<br /> 8 40.0 140 30
<br /> Well o
<br /> a
<br /> Construction o Description
<br /> o � o
<br /> a
<br /> Traffic Rated SILTY SAND(SM):brown(1 OYR 5/3),fine grained sand,medium dense,damp,
<br /> Well Box (0,80,20).
<br /> ELASTIC SILT(MH):dark grayish brown(IOYR 4/2),fine grained sand,stiff,
<br /> Q. v
<br /> damp,medium plasticity,(0,10,90).
<br /> g FAT CLAY(CH):very dark gray(10YR 3/1),very stiff,moist,high plasticity,
<br /> r
<br /> (0,0,100).
<br /> b..
<br /> 3/4"SCH.80
<br /> PVC
<br /> Grout 10 As above,dark grayish brown(IOYR 4/2),fine grained sand,stiff,(0,10,65,25).o.
<br /> 5
<br /> o: o;
<br /> ----------------------------------------
<br /> ELASTIC SILT WITH SAND(MH):dark greenish gray(LOGY 4/1),fine grained
<br /> sand,stiff,moist to wet,medium plasticity,moderate to strong hydrocarbon odor,
<br /> (0,25,75). 260
<br /> t5
<br /> FAT CLAY(CH):dark greenish gray(LOGY 4/1),very stiff,moist,high plasticity,
<br /> o moderate to strong hydrocarbon odor,(0,0,100). 261
<br /> POORLY GRADED SAND WITH SILT(SP-SM):dark greenish gray(SGY 411),
<br /> fine grained sand,medium dense,wet,faint hydrocarbon odor,(0,90,10).
<br /> 20
<br /> ----------------------------------------
<br /> ELASTIC SILT WITH SAND(MH):light olive brown(2.5Y 5/3),fine grained sand,
<br /> stiff,moist to wet,faint hydrocarbon odor,(0,30,70).
<br /> ]1
<br /> o;
<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 /> OSIB-16B.GPJ Figure
<br /> LOG OF BOREHOLE
<br /> (sheet l of 2)
<br />
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