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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 10/31/03 Cascade Drilling Stockton,California CAL Split Spoon OS-22
<br /> Boring Surface Groundwater Depth(ft.): Total Drive Drop
<br /> (lbs.)
<br /> Diam.(in.): Elev.(ft.): 10.25 First Water Depth(ft.): wt. : Dist.(in.):
<br /> 8 19.5 140 30
<br /> .. > E
<br /> a � E
<br /> Well ,��, �,
<br /> z �=
<br /> x 3 Description a
<br /> Construction = ° a a
<br /> Traffic Rated
<br /> Well Box
<br /> Grout
<br /> 5 5In
<br /> AT CLAY(CH):dark grayish brown(10YR 4/2),stiff,
<br /> b` 5oist,high plasticity,(0,0,100). 5 OS-22 1230
<br /> t 5 @5.
<br /> e' �u
<br /> 10 10AT CLAY(CH):dark greenish gray 110Y 4/1),fine I 234
<br /> 5rained sand,very stiff,moist with water filled roatholg, 317OS-22 1240
<br /> Bentonite 5igh-p-lasticity,strong—hy-drocarbon odor, 0 10 90 . 10'
<br /> Chips SANDY SILT(ML):dark greenish gray(5GY 3/1),fine
<br /> grained sand,stiff,moist to wet,strong hydrocarbon odor,
<br /> (0,30,40).
<br /> Sand
<br /> I5 51(0101100).
<br /> FAT CLAY(CH):dark greenish gray(LOGY 4/1),fine
<br /> 7grained sand,very stiff,moist,high plasticity,strong 376 OS-22 1250
<br /> 5hydrocarbon odor,(0,10,90). @15'
<br /> `•2"Sparge —_ —_
<br /> :'•`. Tip 5SANDY ELASTIC SILT(MH):dark greenish gray(5GY 316
<br /> 74/1),fine grained sand,stiff,moist to wet,moderate
<br /> 7plasticity,stronghydrocarbon odor, 0 30 100.
<br /> 6FAT CLAY(CH):dark greenish gray(5GY 4/1),very 113
<br /> 6stiff,moist,high plasticity,strong hydrocarbon odor,
<br /> 20 7 IF
<br /> SANDY ELASTIC SILT(ML):dark greenish gray(5GY
<br /> 411),fine grained sand,very stiff,moist,medium plasticity,
<br /> oderate hydrocarbon odor, 0 30 70 .
<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 1-33.GPJ Figure
<br /> LOG OF BOREHOLE
<br /> (sheet 1 of 1)
<br />
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