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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 Hollow Stem Auger
<br /> C.Melanion 11/4/03 Cascade Drilling Stockton,California CAL Split Spoon OS-51
<br /> Boring Surface Groundwater Depth(ft.): Total Drive Drop
<br /> Diam.(in.): Elev.(ft.): �Z 9.5 First Water Depth(ft.): wt.(lbs.): Dist.(in.):
<br /> 8 19.5 140 30
<br /> d d 4)
<br /> c a E
<br /> Well d a z F
<br /> x 3 Description Q =
<br /> Construction n 2 e n
<br /> Q Q n
<br /> a � rn
<br /> Traffic Rated
<br /> Well Box
<br /> Grout
<br /> o w
<br /> 5 5 SILTY SAND(SM):dark greenish gray(10Y 4/1),fine
<br /> 5 grained sand,medium dense,moist,faint hydrocarbon odor, 64 920
<br /> 5 0 75 25 .
<br /> ELASTIC SILT(MH):black(10YR 2/1),stiff,moist,high
<br /> plasticity,low density,faint hydrocarbon odor(0,0,10,90).
<br /> Q
<br /> l0 6 ELASTIC SILT WITH SAND(MH):very dark gray(5Y
<br /> 8 3/1),fine grained sand,stiff,moist to wet,moderate 106 930
<br /> 8 plasticity,faint hydrocarbon odor,(0,25,75). 73
<br /> ELASTIC SILT(MH):dark gray(5Y 4/1),stiff,moist,
<br /> Bentonite high plasticity,faint odor,(0,10,90).
<br /> Chips
<br /> 15 8 FAT CLAY(CH):dark greenish gray(5GY 3/1),very stiff, 213
<br /> Sand 7 moist high plasticity,strop hydrocarbon odor 0 0 100). 289 OS-51 940
<br /> 9 ELASTIC SILT(MH):dark greenish gray(IOGY 4/1),fine 345 @15'
<br /> 8 grained sand,very stiff,moist,high plasticity,strong SPH
<br /> 2"Sparge 9 h drocarbon odor 0 10,90). 133
<br /> Tip 9 SANDY SILT(ML):dark greenish gray(10Y 4/1),fine
<br /> 7 grained sand,very stiff,moist to wet,low plasticity,
<br /> 7 hydrocarbon_sheen,faint hydrocarbon odor,�O.35 65).__ 54
<br /> SILTY SAND(SM):dark greenish gray(IOY 4/1),fine
<br /> 20 9 grained sand,medium dense,wet,moderate hydrocarbon
<br /> odor, 0 60 40 .
<br /> SANDY SILT(ML):dark greenish gray(10Y 4/1),fine
<br /> rained sand very stiff,moist 0 30 70 .
<br /> The substrata descriptions above are generalized representations and based upon visuaUmanual 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-44-51.GPJ Figure
<br /> LOG OF BOREHOLE
<br /> (sheet 1 of 1)
<br />
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