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S ECOR
<br /> Logged By: Date Drilled: Drilling Contractor Project Name: Method/Equipment: well Number:
<br /> STTC-Ozone Well Install Hollow Stem Auger
<br /> C.Melanion 11/4/03 Cascade Drilling Stockton,California CAL Split Spoon OS-54
<br /> Boring Surface Groundwater Depth(ft.): Total Drive Drop
<br /> Diam.(in.): Elev.(ft.): SZ 9.5 First Water Depth(ft.): wt.(Ibs.): Dist_(in.):
<br /> 1i 19.5 140 30
<br /> a � E
<br /> Well
<br /> Y x 3 Description Q
<br /> Construction ca 2 ca Q
<br /> ti
<br /> Traffic Rated
<br /> Well Box
<br /> :y
<br /> Grout
<br /> 5 5 SILTY SAND(SM):dark greenish gray(IOY 3/1),fine
<br /> 5 grained sand,medium dense,moist to wet,SPH sheen, 41 OS-54 1240
<br /> 5 strong hydrocarbon odor, 0 60 40 . @5'
<br /> FAT CLAY(CH):black(IOYR 2/1),stiff,moist,high
<br /> plasticity,low density,faint hydrocarbon odor(0,0,100).
<br /> As above,color change @ 5.5'to dark gray(5Y 4/1).
<br /> ----------------------------
<br /> 10 6 SANDY SILT(ML):dark gray(5Y 4/1),stiff,moist to 89
<br /> 7 wet,moderate plasticity,moderate hydrocarbon odor,
<br /> 6 q0 0,20)_ 174 10.5 1250
<br /> ELASTIC SILT(MH)tiery dark gray(5Y 311),fine
<br /> Bentonite grained sand,very stiff,moist,high plasticity,strong
<br /> Chips hydrocarbon odor,(0,10,65,25).
<br /> 15 EAFCLW(CH):dark greenish gray(10Y 3/1),very stiff, 365 OS-54 1300
<br /> Sand moist high plasticity,strong hydrocarbon odor 0 0 100 . @15'
<br /> ior,
<br /> ILTY SAND(SM):dark greenish gray(10Y 3/1),fine 328
<br /> ained sand,moist to wet,SPH sheen,strong hydrocarbon
<br /> 6 0 60 40 . SPH
<br /> 2'Sparge 6 FAT CLAY(CH):dark greenish gray(IOY 4/1),fine 270
<br /> Tip 5 'ned sand very stiff,moist hi h lastici 0 0 100 . SPH
<br /> 5 1 SILTY SAND (SM):dark greenish gray(IOY 3/1),fine 36
<br /> grained sand,medium dense,moist to wet,SPH sheen,
<br /> 20 7 tron hydrocarbon odor, 0 65 35 .
<br /> POORLY GRADED SAND WITH SILT(SP-SM):dark
<br /> greenish gray(IOY 4/1),fine grained sand,medium dense,
<br /> I et moderate hydrocarbon odor, 0 90 10 0 .
<br /> IELASTIC SILT-dark greenish gray(5GY 3/1),stiff,moist,)
<br /> §jgli plasticity,faint hydrocarbon odor, 0,10 tO)_
<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. Date 9/29/04 DWR Log of Well
<br /> OS-33-57.GPJ Figure
<br /> LOG OF BOREHOLE
<br /> (sheet 1 of 1)
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